H. Bradley Shaffer, Ph.D. - Publications

Affiliations: 
University of California, Davis, Davis, CA 
 Ecology and Evolutionary Biology University of California, Los Angeles, Los Angeles, CA 
Area:
Evolutionary and conservation biology of amphibians and reptiles

167 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2024 Jacobs DK, Kinziger A, Abrecht M, McCraney WT, Hà BA, Spies BT, Heath-Heckman E, Marimuhtu MPA, Nguyen O, Fairbairn CW, Seligmann WE, Escalona M, Miller C, Shaffer HB. Reference genome for the endangered, genetically subdivided, northern tidewater goby, Eucyclogobius newberryi. The Journal of Heredity. PMID 39367793 DOI: 10.1093/jhered/esae053  0.417
2024 MacDonald ZG, Schoville S, Escalona M, Marimuthu MPA, Nguyen O, Chumchim N, Fairbairn CW, Seligmann W, Toffelmier E, Gillespie T, Shaffer HB. A genome assembly for the Chryxus Arctic (Oeneis chryxus), the highest butterfly in North America. The Journal of Heredity. PMID 39275847 DOI: 10.1093/jhered/esae051  0.376
2024 Cash EI, Escalona M, Ward PS, Sahasrabudhe R, Miller C, Toffelmier E, Fairbairn C, Seligmann W, Shaffer HB, Tsutsui ND. "The Reference Genome Of The Kidnapper Ant, Polyergus Mexicanus". The Journal of Heredity. PMID 39248324 DOI: 10.1093/jhered/esae047  0.445
2024 Chaturvedi S, Escalona M, Marimuthu MPA, Nguyen O, Chumchim N, Fairbairn CW, Seligmann W, Miller C, Shaffer HB, Whiteman NK. A draft reference genome assembly of California Pipevine, Aristolochia californica Torr. The Journal of Heredity. PMID 38616677 DOI: 10.1093/jhered/esae023  0.38
2023 Ward PS, Cash EI, Ferger K, Escalona M, Sahasrabudhe R, Miller C, Toffelmier E, Fairbairn C, Seligmann W, Shaffer HB, Tsutsui ND. Reference genome of the bicolored carpenter ant, Camponotus vicinus. The Journal of Heredity. PMID 37751380 DOI: 10.1093/jhered/esad055  0.42
2023 Curti J, Fraser D, Escalona M, Fairbairn CW, Sacco S, Sahasrabudhe R, Nguyen O, Seligmann W, Sudmant PH, Toffelmier E, Vazquez JM, Wayne R, Shaffer HB, Buchalski MR. A genome assembly of the Yuma myotis bat, Myotis yumanensis. The Journal of Heredity. PMID 37712349 DOI: 10.1093/jhered/esad053  0.364
2023 Westeen EP, Escalona M, Beraut E, Marimuthu MPA, Nguyen O, Fisher RN, Toffelmier E, Shaffer HB, Wang IJ. A reference genome assembly for the continentally-distributed ring-necked snake, Diadophis punctatus. The Journal of Heredity. PMID 37688363 DOI: 10.1093/jhered/esad051  0.78
2023 Cooper RD, Shaffer HB. Managing invasive hybrids with pond hydroperiod manipulation in an endangered salamander system. Conservation Biology : the Journal of the Society For Conservation Biology. PMID 37551773 DOI: 10.1111/cobi.14167  0.33
2023 Westeen EP, Escalona M, Holding M, Beraut E, Fairbairn C, Marimuthu MPA, Nguyen O, Perri R, Fisher RN, Toffelmier E, Shaffer HB, Wang IJ. A genome assembly for the southern Pacific rattlesnake, Crotalus oreganus helleri, in the western rattlesnake species complex. The Journal of Heredity. PMID 37493092 DOI: 10.1093/jhered/esad045  0.769
2023 Chaturvedi S, Escalona M, Marimuthu MPA, Nguyen O, Chumchim N, Fairbairn CW, Seligmann W, Miller C, Shaffer HB, Whiteman NK. A draft reference genome assembly of the Pipevine Swallowtail butterfly, Battus philenor hirsuta. The Journal of Heredity. PMID 37428819 DOI: 10.1093/jhered/esad043  0.349
2023 Gallego-García N, Vargas-Ramírez M, Shaffer HB. The importance of cryptic diversity in the conservation of wide-ranging species: The red-footed tortoise Chelonoidis carbonarius in Colombia. Molecular Ecology. PMID 37340598 DOI: 10.1111/mec.17052  0.479
2023 Bishop AP, Westeen EP, Yuan ML, Escalona M, Beraut E, Fairbairn C, Marimuthu MPA, Nguyen O, Chumchim N, Toffelmier E, Fisher RN, Shaffer HB, Wang IJ. Assembly of the largest squamate reference genome to date: the western fence lizard, Sceloporus occidentalis. The Journal of Heredity. PMID 37335574 DOI: 10.1093/jhered/esad037  0.817
2023 Richmond JQ, McGuire JA, Escalona M, Marimuthu MPA, Nguyen O, Sacco S, Beraut E, Toffelmier E, Fisher RN, Wang IJ, Shaffer HB. Reference genome of an iconic lizard in western North America, Blainville's horned lizard Phrynosoma blainvillii. The Journal of Heredity. PMID 37195437 DOI: 10.1093/jhered/esad032  0.798
2023 Grether GF, Beninde J, Beraut E, Chumchim N, Escalona M, MacDonald ZG, Miller C, Sahasrabudhe R, Shedlock AM, Toffelmier E, Shaffer HB. Reference genome for the American rubyspot damselfly, Hetaerina americana. The Journal of Heredity. PMID 37195415 DOI: 10.1093/jhered/esad031  0.375
2023 Hall LA, Wang IJ, Escalona M, Beraut E, Sacco S, Sahasrabudhe R, Nguyen O, Toffelmier E, Shaffer HB, Beissinger SR. Reference genome of the black rail, Laterallus jamaicensis. The Journal of Heredity. PMID 37119047 DOI: 10.1093/jhered/esad025  0.77
2023 van Riemsdijk I, Arntzen JW, Bucciarelli GM, McCartney-Melstad E, Rafajlović M, Scott PA, Toffelmier E, Shaffer HB, Wielstra B. Two transects reveal remarkable variation in gene flow on opposite ends of a European toad hybrid zone. Heredity. PMID 37106116 DOI: 10.1038/s41437-023-00617-6  0.305
2023 Hall LA, Wang IJ, Escalona M, Beraut E, Sacco S, Sahasrabudhe R, Nguyen O, Toffelmier E, Shaffer HB, Beissinger SR. Reference genome of the Virginia rail, Rallus limicola. The Journal of Heredity. PMID 37105531 DOI: 10.1093/jhered/esad026  0.791
2023 Adams SA, Graham N, Holmquist A, Sheffer M, Steigerwald EC, Sahasrabudhe R, Nguyen O, Beraut E, Fairbairn C, Sacco S, Seligmann W, Escalona M, Shaffer HB, Toffelmier E, Gillespie RG. REFERENCE GENOME OF THE LONG-JAWED ORB-WEAVER, Tetragnatha versicolor (ARANEAE: TETRAGNATHIDAE). The Journal of Heredity. PMID 37042574 DOI: 10.1093/jhered/esad013  0.393
2023 Bentley BP, Carrasco-Valenzuela T, Ramos EKS, Pawar H, Souza Arantes L, Alexander A, Banerjee SM, Masterson P, Kuhlwilm M, Pippel M, Mountcastle J, Haase B, Uliano-Silva M, Formenti G, Howe K, ... ... Shaffer HB, et al. Divergent sensory and immune gene evolution in sea turtles with contrasting demographic and life histories. Proceedings of the National Academy of Sciences of the United States of America. 120: e2201076120. PMID 36749728 DOI: 10.1073/pnas.2201076120  0.469
2022 Messerman AF, Clause AG, Gray LN, Krkošek M, Rollins HB, Trenham PC, Shaffer HB, Searcy CA. Applying stochastic and Bayesian integral projection modeling to amphibian population viability analysis. Ecological Applications : a Publication of the Ecological Society of America. e2783. PMID 36478484 DOI: 10.1002/eap.2783  0.612
2022 Wright DB, Escalona M, Marimuthu MPA, Sahasrabudhe R, Nguyen O, Sacco S, Beraut E, Toffelmier E, Miller C, Shaffer HB, Bernardi G, German DP. Reference genome of the Monkeyface Prickleback, Cebidichthys violaceus. The Journal of Heredity. PMID 36321765 DOI: 10.1093/jhered/esac054  0.352
2022 Fiedler PL, Erickson B, Esgro M, Gold M, Hull JM, Norris J, Shapiro B, Westphal M, Toffelmier E, Shaffer HB. Seizing the Moment: The opportunity and relevance of the California Conservation Genomics Project to state and federal conservation policy. The Journal of Heredity. PMID 36136001 DOI: 10.1093/jhered/esac046  0.754
2022 Anghel I, Jacobs SJ, Escalona M, Marimuthu MPA, Fairbairn CW, Beraut E, Nguyen O, Toffelmier E, Shaffer HB, Zapata F. Reference genome of the color polymorphic desert annual plant Linanthus parryae. The Journal of Heredity. PMID 36107789 DOI: 10.1093/jhered/esac052  0.427
2022 Wright DB, Escalona M, Marimuthu MPA, Sahasrabudhe R, Nguyen O, Sacco S, Beraut E, Toffelmier E, Miller C, Shaffer HB, Bernardi G. Reference genome of the Woolly Sculpin, Clinocottus analis. The Journal of Heredity. PMID 36107748 DOI: 10.1093/jhered/esac055  0.338
2022 Grismer JL, Escalona M, Miller C, Beraut E, Fairbairn CW, Marimuthu MPA, Nguyen O, Toffelmier E, Wang IJ, Shaffer HB. Reference genome of the Rubber Boa, Charina bottae (Serpentes: Boidae). The Journal of Heredity. PMID 36056886 DOI: 10.1093/jhered/esac048  0.775
2022 Beninde J, Toffelmier E, Shaffer HB. A brief history of population genetic research in California and an evaluation of its utility for conservation decision-making. The Journal of Heredity. PMID 36056714 DOI: 10.1093/jhered/esac049  0.415
2022 Toffelmier E, Beninde J, Shaffer HB. The phylogeny of California, and how it informs setting multi-species conservation priorities. The Journal of Heredity. PMID 36048626 DOI: 10.1093/jhered/esac045  0.406
2022 Wood DA, Richmond JQ, Escalona M, Marimuthu MPA, Nguyen O, Sacco S, Beraut E, Westphal M, Fisher RN, Vandergast AG, Toffelmier E, Wang IJ, Shaffer HB. Reference Genome of the California Glossy Snake, Arizona elegans occidentalis, a Declining California Species of Special Concern. The Journal of Heredity. PMID 35939354 DOI: 10.1093/jhered/esac040  0.827
2022 Bernardi G, Toy JA, Escalona M, Marimuthu MPA, Sahasrabudhe R, Nguyen O, Sacco S, Beraut E, Toffelmier E, Miller C, Shaffer HB. Reference genome of the Black Surfperch, Embiotoca jacksoni (Embiotocidae, Perciformes), a California kelp forest fish that lacks a pelagic larval stage. The Journal of Heredity. PMID 35809222 DOI: 10.1093/jhered/esac034  0.368
2022 Beninde J, Toffelmier EM, Andreas A, Nishioka C, Slay M, Soto A, Bueno JP, Gonzalez G, Pham HV, Posta M, Pace JL, Shaffer HB. CaliPopGen: A genetic and life history database for the fauna and flora of California. Scientific Data. 9: 380. PMID 35790740 DOI: 10.1038/s41597-022-01479-z  0.432
2022 Bernardi G, DeBiasse M, Escalona M, Marimuthu MPA, Nguyen O, Sacco S, Beraut E, Miller C, Toffelmier E, Shaffer HB. Reference genome of the California Sheephead, Semicossyphus pulcher (Labridae, Perciformes), a keystone fish predator in kelp forest ecosystems. The Journal of Heredity. PMID 35778264 DOI: 10.1093/jhered/esac032  0.402
2022 Todd BD, Jenkinson TS, Escalona M, Beraut E, Nguyen O, Sahasrabudhe R, Scott PA, Toffelmier E, Wang IJ, Shaffer HB. Reference genome of the northwestern pond turtle, Actinemys marmorata. The Journal of Heredity. PMID 35665811 DOI: 10.1093/jhered/esac021  0.787
2022 Huang Y, Escalona M, Morrison G, Marimuthu MPA, Nguyen O, Toffelmier E, Shaffer HB, Litt A. Reference Genome Assembly of the Big Berry Manzanita (Arctostaphylos glauca). The Journal of Heredity. 113: 188-196. PMID 35575079 DOI: 10.1093/jhered/esab071  0.418
2022 Huang Y, Escalona M, Morrison G, Marimuthu MPA, Nguyen O, Toffelmier E, Shaffer HB, Litt A. Reference Genome Assembly of the Big Berry Manzanita (Arctostaphylos glauca). The Journal of Heredity. 113: 188-196. PMID 35575079 DOI: 10.1093/jhered/esab071  0.418
2022 Huang Y, Escalona M, Morrison G, Marimuthu MPA, Nguyen O, Toffelmier E, Shaffer HB, Litt A. Reference Genome Assembly of the Big Berry Manzanita (Arctostaphylos glauca). The Journal of Heredity. 113: 188-196. PMID 35575079 DOI: 10.1093/jhered/esab071  0.418
2022 Huang Y, Escalona M, Morrison G, Marimuthu MPA, Nguyen O, Toffelmier E, Shaffer HB, Litt A. Reference Genome Assembly of the Big Berry Manzanita (Arctostaphylos glauca). The Journal of Heredity. 113: 188-196. PMID 35575079 DOI: 10.1093/jhered/esab071  0.418
2022 Shaffer HB, Toffelmier E, Corbett-Detig RB, Escalona M, Erickson B, Fiedler P, Gold M, Harrigan RJ, Hodges S, Luckau TK, Miller C, Oliveira DR, Shaffer KE, Shapiro B, Sork VL, et al. Landscape genomics to enable conservation actions: The California Conservation Genomics Project. The Journal of Heredity. PMID 35395669 DOI: 10.1093/jhered/esac020  0.791
2022 Lewin HA, Richards S, Lieberman Aiden E, Allende ML, Archibald JM, Bálint M, Barker KB, Baumgartner B, Belov K, Bertorelle G, Blaxter ML, Cai J, Caperello ND, Carlson K, Castilla-Rubio JC, ... ... Shaffer HB, et al. The Earth BioGenome Project 2020: Starting the clock. Proceedings of the National Academy of Sciences of the United States of America. 119. PMID 35042800 DOI: 10.1073/pnas.2115635118  0.44
2021 Gallego-García N, Caballero S, Shaffer HB. Are genomic updates of well-studied species worth the investment for conservation? A case study of the Critically Endangered Magdalena River turtle. The Journal of Heredity. PMID 34628509 DOI: 10.1093/jhered/esab063  0.46
2021 Scott PA, Allison LJ, Field KJ, Averill-Murray RC, Shaffer HB. Response to Comment on "Individual heterozygosity predicts translocation success in threatened desert tortoises". Science (New York, N.Y.). 372. PMID 34083459 DOI: 10.1126/science.abh2633  0.306
2021 Everson KM, Gray LN, Jones AG, Lawrence NM, Foley ME, Sovacool KL, Kratovil JD, Hotaling S, Hime PM, Storfer A, Parra-Olea G, Percino-Daniel R, Aguilar-Miguel X, O'Neill EM, Zambrano L, ... Shaffer HB, et al. Geography is more important than life history in the recent diversification of the tiger salamander complex. Proceedings of the National Academy of Sciences of the United States of America. 118. PMID 33888580 DOI: 10.1073/pnas.2014719118  0.723
2021 Thomson RC, Spinks PQ, Shaffer HB. A global phylogeny of turtles reveals a burst of climate-associated diversification on continental margins. Proceedings of the National Academy of Sciences of the United States of America. 118. PMID 33558231 DOI: 10.1073/pnas.2012215118  0.577
2020 Neal KM, Fisher RN, Mitrovich MJ, Shaffer HB. Conservation genomics of the threatened western spadefoot, Spea hammondii, in urbanized southern California. The Journal of Heredity. PMID 33245338 DOI: 10.1093/jhered/esaa049  0.354
2020 Stanford CB, Iverson JB, Rhodin AGJ, Paul van Dijk P, Mittermeier RA, Kuchling G, Berry KH, Bertolero A, Bjorndal KA, Blanck TEG, Buhlmann KA, Burke RL, Congdon JD, Diagne T, Edwards T, ... ... Shaffer HB, et al. Turtles and Tortoises Are in Trouble. Current Biology : Cb. 30: R721-R735. PMID 32574638 DOI: 10.1016/J.Cub.2020.04.088  0.612
2020 Nicholson EG, Manzo S, Devereux Z, Morgan TP, Fisher RN, Brown C, Dagit R, Scott PA, Shaffer HB. Historical museum collections and contemporary population studies implicate roads and introduced predatory bullfrogs in the decline of western pond turtles. Peerj. 8: e9248. PMID 32566396 DOI: 10.7717/Peerj.9248  0.414
2020 Bucciarelli GM, Clark MA, Delaney KS, Riley SPD, Shaffer HB, Fisher RN, Honeycutt RL, Kats LB. Amphibian responses in the aftermath of extreme climate events. Scientific Reports. 10: 3409. PMID 32098990 DOI: 10.1038/S41598-020-60122-2  0.348
2019 Lambert MR, McKenzie JM, Screen RM, Clause AG, Johnson BB, Mount GG, Shaffer HB, Pauly GB. Experimental removal of introduced slider turtles offers new insight into competition with a native, threatened turtle. Peerj. 7: e7444. PMID 31435491 DOI: 10.7717/Peerj.7444  0.374
2019 McCartney-Melstad E, Gidiş M, Shaffer HB. An empirical pipeline for choosing the optimal clustering threshold in RADseq studies. Molecular Ecology Resources. PMID 31058458 DOI: 10.1111/1755-0998.13029  0.811
2019 Gallego-García N, Forero-Medina G, Vargas-Ramírez M, Caballero S, Shaffer HB. Landscape genomic signatures indicate reduced gene flow and forest-associated adaptive divergence in an endangered neotropical turtle. Molecular Ecology. PMID 31013379 DOI: 10.1111/mec.15112  0.394
2019 Wielstra B, McCartney-Melstad E, Arntzen JW, Butlin RK, Shaffer HB. Phylogenomics of the adaptive radiation of Triturus newts supports gradual ecological niche expansion towards an incrementally aquatic lifestyle. Molecular Phylogenetics and Evolution. 133: 120-127. PMID 30630099 DOI: 10.1016/J.Ympev.2018.12.032  0.827
2018 Schlesinger MD, Feinberg JA, Nazdrowicz NH, Kleopfer JD, Beane JC, Bunnell JF, Burger J, Corey E, Gipe K, Jaycox JW, Kiviat E, Kubel J, Quinn DP, Raithel C, Scott PA, ... ... Shaffer HB, et al. Follow-up ecological studies for cryptic species discoveries: Decrypting the leopard frogs of the eastern U.S. Plos One. 13: e0205805. PMID 30412587 DOI: 10.1371/Journal.Pone.0205805  0.437
2018 Georges A, Gruber B, Pauly GB, White D, Adams M, Young MJ, Kilian A, Zhang X, Shaffer HB, Unmack PJ. Genome-wide SNP markers breathe new life into phylogeography and species delimitation for the problematic short-necked turtles (Chelidae: Emydura) of eastern Australia. Molecular Ecology. PMID 30403418 DOI: 10.1111/Mec.14925  0.52
2018 McCartney-Melstad E, Vu JK, Shaffer HB. Genomic data recover previously undetectable fragmentation effects in an endangered amphibian. Molecular Ecology. PMID 30307076 DOI: 10.1111/Mec.14892  0.822
2018 Bucciarelli GM, Suh D, Davis A, Roberts D, Sharpton D, Shaffer HB, Fisher RN, Kats LB. Assessing effects of non-native crayfish on mosquito survival. Conservation Biology : the Journal of the Society For Conservation Biology. PMID 30079610 DOI: 10.1111/Cobi.13198  0.376
2018 McCartney-Melstad E, Gidiş M, Shaffer HB. Population genomic data reveal extreme geographic subdivision and novel conservation actions for the declining foothill yellow-legged frog. Heredity. PMID 29941996 DOI: 10.1038/S41437-018-0097-7  0.848
2018 Peralta-García A, Adams AJ, Briggs CJ, Galina-Tessaro P, Valdez-Villavicencio JH, Hollingsworth BD, Shaffer HB, Fisher RN. Occurrence of Batrachochytrium dendrobatidis in anurans of the Mediterranean region of Baja California, México. Diseases of Aquatic Organisms. 127: 193-200. PMID 29516858 DOI: 10.3354/Dao03202  0.426
2018 Rhodin AG, Stanford CB, Dijk PPV, Eisemberg C, Luiselli L, Mittermeier RA, Hudson R, Horne BD, Goode EV, Kuchling G, Walde A, Baard EH, Berry KH, Bertolero A, Blanck TE, ... ... Shaffer HB, et al. Global Conservation Status of Turtles and Tortoises (Order Testudines) Chelonian Conservation and Biology. 17: 135. DOI: 10.2744/Ccb-1348.1  0.451
2018 Neal KM, Johnson BB, Shaffer HB. Genetic structure and environmental niche modeling confirm two evolutionary and conservation units within the western spadefoot (Spea hammondii) Conservation Genetics. 19: 937-946. DOI: 10.1007/S10592-018-1066-7  0.432
2017 Bucciarelli GM, Shaffer HB, Green DB, Kats LB. An amphibian chemical defense phenotype is inducible across life history stages. Scientific Reports. 7: 8185. PMID 28811506 DOI: 10.1038/S41598-017-08154-Z  0.318
2017 Wang IJ, Shaffer HB. Population genetic and field-ecological analyses return similar estimates of dispersal over space and time in an endangered amphibian. Evolutionary Applications. 10: 630-639. PMID 28616069 DOI: 10.1111/Eva.12479  0.756
2016 Hime PM, Hotaling S, Grewelle RE, O'Neill EM, Voss SR, Shaffer HB, Weisrock DW. The influence of locus number and information content on species delimitation: an empirical test case in an endangered Mexican salamander. Molecular Ecology. PMID 27748559 DOI: 10.1111/Mec.13883  0.797
2016 McCartney-Melstad E, Mount GG, Shaffer HB. Exon capture optimization in amphibians with large genomes. Molecular Ecology Resources. PMID 27223337 DOI: 10.1111/1755-0998.12538  0.797
2016 Bucciarelli GM, Green DB, Shaffer HB, Kats LB. Individual fluctuations in toxin levels affect breeding site fidelity in a chemically defended amphibian. Proceedings. Biological Sciences / the Royal Society. 283. PMID 27194704 DOI: 10.1098/Rspb.2016.0468  0.355
2016 Wayne RK, Shaffer HB. Hybridization and Endangered Species Protection in the Molecular Era. Molecular Ecology. PMID 27064931 DOI: 10.1111/Mec.13642  0.441
2016 Searcy CA, Rollins HB, Shaffer HB. Ecological equivalency as a tool for endangered species management. Ecological Applications : a Publication of the Ecological Society of America. 26: 94-103. PMID 27039512 DOI: 10.1890/14-1674  0.633
2016 Searcy CA, Shaffer HB. Do Ecological Niche Models Accurately Identify Climatic Determinants of Species Ranges? The American Naturalist. 187: 423-35. PMID 27028071 DOI: 10.1086/685387  0.416
2016 Wielstra B, Burke T, Butlin RK, Schaap O, Shaffer HB, Vrieling K, Arntzen JW. Efficient screening for ‘genetic pollution’ in an anthropogenic crested newt hybrid zone Conservation Genetics Resources. 8: 553-560. DOI: 10.1007/S12686-016-0582-3  0.344
2015 McCartney-Melstad E, Shaffer HB. Amphibian molecular ecology and how it has informed conservation. Molecular Ecology. 24: 5084-109. PMID 26437125 DOI: 10.1111/Mec.13391  0.801
2015 Shaffer HB, Gidi? M, McCartney-Melstad E, Neal KM, Oyamaguchi HM, Tellez M, Toffelmier EM. Conservation genetics and genomics of amphibians and reptiles. Annual Review of Animal Biosciences. 3: 113-38. PMID 25580719 DOI: 10.1146/Annurev-Animal-022114-110920  0.837
2015 Spinks PQ, Georges A, Shaffer HB. Phylogenetic Uncertainty and Taxonomic Re-revisions: An Example from the Australian Short-necked Turtles (Testudines: Chelidae) Copeia. 103: 536-540. DOI: 10.1643/Ch-14-147  0.462
2015 Searcy CA, Snaas H, Shaffer HB. Determinants of size at metamorphosis in an endangered amphibian and their projected effects on population stability Oikos. 124: 724-731. DOI: 10.1111/Oik.01775  0.371
2015 Wright AN, Hijmans RJ, Schwartz MW, Shaffer HB. Multiple sources of uncertainty affect metrics for ranking conservation risk under climate change Diversity and Distributions. 21: 111-122. DOI: 10.1111/Ddi.12257  0.352
2014 Feinberg JA, Newman CE, Watkins-Colwell GJ, Schlesinger MD, Zarate B, Curry BR, Shaffer HB, Burger J. Cryptic diversity in metropolis: confirmation of a new leopard frog species (Anura: Ranidae) from New York City and surrounding Atlantic coast regions. Plos One. 9: e108213. PMID 25354068 DOI: 10.1371/Journal.Pone.0108213  0.804
2014 Spinks PQ, Thomson RC, Shaffer HB. The advantages of going large: genome-wide SNPs clarify the complex population history and systematics of the threatened western pond turtle. Molecular Ecology. 23: 2228-41. PMID 24673803 DOI: 10.1111/Mec.12736  0.67
2014 Searcy CA, Gray LN, Trenham PC, Shaffer HB. Delayed life history effects, multilevel selection, and evolutionary trade-offs in the California tiger salamander. Ecology. 95: 68-77. PMID 24649647 DOI: 10.1890/13-0120.1  0.384
2014 Donnelly MA, Karsten KB, Pauers MJ, Shaffer HB, Kingsbury BA, Reading CJ, Green DM, Salcedo NJ, Trauth SE, Lowe MR, Godley BJ. Divergent evolution in the polymorphic granular poison-dart frog, Oophaga granulifera: genetics, coloration, advertisement calls, and morphology Copeia. 2014: 181-195. DOI: 10.1643/Ot-13-124  0.36
2014 Shaffer HB. Field of Genes Boom. 4: 129-133. DOI: 10.1525/boom.2014.4.3.129  0.321
2014 Searcy CA, Shaffer HB. Field validation supports novel niche modeling strategies in a cryptic endangered amphibian Ecography. 37: 983-992. DOI: 10.1111/Ecog.00733  0.325
2014 Warren DL, Wright AN, Seifert SN, Shaffer HB. Incorporating model complexity and spatial sampling bias into ecological niche models of climate change risks faced by 90 California vertebrate species of concern Diversity and Distributions. 20: 334-343. DOI: 10.1111/Ddi.12160  0.337
2013 Spinks PQ, Thomson RC, Pauly GB, Newman CE, Mount G, Shaffer HB. Misleading phylogenetic inferences based on single-exemplar sampling in the turtle genus Pseudemys. Molecular Phylogenetics and Evolution. 68: 269-81. PMID 23583419 DOI: 10.1016/J.Ympev.2013.03.031  0.836
2013 Shaffer HB, Minx P, Warren DE, Shedlock AM, Thomson RC, Valenzuela N, Abramyan J, Amemiya CT, Badenhorst D, Biggar KK, Borchert GM, Botka CW, Bowden RM, Braun EL, Bronikowski AM, et al. The western painted turtle genome, a model for the evolution of extreme physiological adaptations in a slowly evolving lineage. Genome Biology. 14: R28. PMID 23537068 DOI: 10.1186/Gb-2013-14-3-R28  0.791
2013 Ryan ME, Johnson JR, Fitzpatrick BM, Lowenstine LJ, Picco AM, Shaffer HB. Lethal effects of water quality on threatened California salamanders but not on co-occurring hybrid salamanders. Conservation Biology : the Journal of the Society For Conservation Biology. 27: 95-102. PMID 23140535 DOI: 10.1111/J.1523-1739.2012.01955.X  0.701
2013 O'Neill EM, Schwartz R, Bullock CT, Williams JS, Shaffer HB, Aguilar-Miguel X, Parra-Olea G, Weisrock DW. Parallel tagged amplicon sequencing reveals major lineages and phylogenetic structure in the North American tiger salamander (Ambystoma tigrinum) species complex. Molecular Ecology. 22: 111-29. PMID 23062080 DOI: 10.1111/Mec.12049  0.773
2013 Lambert MR, Nielsen SN, Wright AN, Thomson RC, Shaffer HB. Habitat features determine the basking distribution of introduced red-eared sliders and native western pond turtles Chelonian Conservation and Biology. 12: 192-199. DOI: 10.2744/Ccb-1010.1  0.533
2013 Shaffer HB, Purugganan MD. Introduction to theme "genomics in ecology, evolution, and systematics" Annual Review of Ecology, Evolution, and Systematics. 44: 1-4. DOI: 10.1146/Annurev-Ecolsys-081913-123118  0.428
2013 Johnson JR, Ryan ME, Micheletti SJ, Shaffer HB. Short pond hydroperiod decreases fitness of nonnative hybrid salamanders in California Animal Conservation. 16: 556-565. DOI: 10.1111/Acv.12029  0.3
2013 Polich RL, Searcy CA, Shaffer HB. Effects of tail-clipping on survivorship and growth of larval salamanders Journal of Wildlife Management. 77: 1420-1425. DOI: 10.1002/Jwmg.596  0.355
2012 Voss SR, Kump DK, Walker JA, Shaffer HB, Voss GJ. Thyroid hormone responsive QTL and the evolution of paedomorphic salamanders. Heredity. 109: 293-8. PMID 22850698 DOI: 10.1038/hdy.2012.41  0.445
2012 Spinks PQ, Thomson RC, Zhang Y, Che J, Wu Y, Shaffer HB. Species boundaries and phylogenetic relationships in the critically endangered Asian box turtle genus Cuora. Molecular Phylogenetics and Evolution. 63: 656-67. PMID 22649793 DOI: 10.1016/J.Ympev.2012.02.014  0.629
2012 Newman CE, Feinberg JA, Rissler LJ, Burger J, Shaffer HB. A new species of leopard frog (Anura: Ranidae) from the urban northeastern US. Molecular Phylogenetics and Evolution. 63: 445-55. PMID 22321689 DOI: 10.1016/J.Ympev.2012.01.021  0.806
2012 Spinks PQ, Thomson RC, Hughes B, Moxley B, Brown R, Diesmos A, Shaffer HB. Cryptic variation and the tragedy of unrecognized taxa: The case of international trade in the spiny turtle Heosemys spinosa (Testudines: Geoemydidae) Zoological Journal of the Linnean Society. 164: 811-824. DOI: 10.1111/J.1096-3642.2011.00788.X  0.636
2012 Pauly GB, Bennett SH, Palis JG, Shaffer HB. Conservation and genetics of the frosted flatwoods salamander (Ambystoma cingulatum) on the Atlantic coastal plain Conservation Genetics. 13: 1-7. DOI: 10.1007/S10592-011-0274-1  0.531
2011 Georges A, Spencer RJ, Welsh M, Shaffer HB, Walsh R, Zhang X. Application of the precautionary principle to taxa of uncertain status: The case of the Bellinger River turtle Endangered Species Research. 14: 127-134. DOI: 10.3354/Esr00350  0.662
2011 Caro T, Evans OS, Fitzherbert E, Gardner TA, Howell K, Drewes R, Shaffer HB. Reptiles of Katavi National Park, Western Tanzania, are from different biomes African Journal of Ecology. 49: 377-382. DOI: 10.1111/J.1365-2028.2011.01261.X  0.3
2011 Gidis M, Spinks PQ, Çevik E, Kaska Y, Shaffer HB. Shallow genetic divergence indicates a Congo-Nile riverine connection for the softshell turtle Trionyx triunguis Conservation Genetics. 12: 589-594. DOI: 10.1007/S10592-010-0160-2  0.462
2011 Johnson JR, Thomson RC, Micheletti SJ, Shaffer HB. The origin of tiger salamander (Ambystoma tigrinum) populations in California, Oregon, and Nevada: Introductions or relicts? Conservation Genetics. 12: 355-370. DOI: 10.1007/S10592-010-0144-2  0.628
2011 Lind AJ, Spinks PQ, Fellers GM, Shaffer HB. Rangewide phylogeography and landscape genetics of the Western U.S. endemic frog Rana boylii (Ranidae): Implications for the conservation of frogs and rivers Conservation Genetics. 12: 269-284. DOI: 10.1007/S10592-010-0138-0  0.462
2010 Savage WK, Fremier AK, Shaffer HB. Landscape genetics of alpine Sierra Nevada salamanders reveal extreme population subdivision in space and time. Molecular Ecology. 19: 3301-14. PMID 20701683 DOI: 10.1111/J.1365-294X.2010.04718.X  0.442
2010 Thomson RC, Shaffer HB. Sparse supermatrices for phylogenetic inference: taxonomy, alignment, rogue taxa, and the phylogeny of living turtles. Systematic Biology. 59: 42-58. PMID 20525619 DOI: 10.1093/Sysbio/Syp075  0.635
2010 Johnson JR, Fitzpatrick BM, Shaffer HB. Retention of low-fitness genotypes over six decades of admixture between native and introduced tiger salamanders. Bmc Evolutionary Biology. 10: 147. PMID 20482794 DOI: 10.1186/1471-2148-10-147  0.687
2010 Thomson RC, Shaffer HB. Rapid progress on the vertebrate tree of life. Bmc Biology. 8: 19. PMID 20211001 DOI: 10.1186/1741-7007-8-19  0.596
2010 Fitzpatrick BM, Johnson JR, Kump DK, Smith JJ, Voss SR, Shaffer HB. Rapid spread of invasive genes into a threatened native species. Proceedings of the National Academy of Sciences of the United States of America. 107: 3606-10. PMID 20133596 DOI: 10.1073/Pnas.0911802107  0.795
2010 Spinks PQ, Thomson RC, Shaffer HB. Nuclear gene phylogeography reveals the historical legacy of an ancient inland sea on lineages of the western pond turtle, Emys marmorata in California. Molecular Ecology. 19: 542-56. PMID 20051011 DOI: 10.1111/J.1365-294X.2009.04451.X  0.628
2010 Barley AJ, Spinks PQ, Thomson RC, Shaffer HB. Fourteen nuclear genes provide phylogenetic resolution for difficult nodes in the turtle tree of life. Molecular Phylogenetics and Evolution. 55: 1189-94. PMID 19913628 DOI: 10.1016/J.Ympev.2009.11.005  0.772
2010 Thomson RC, Spinks PQ, Shaffer HB. Distribution and abundance of invasive red-eared sliders (Trachemys scripta elegans) in California's Sacramento River Basin and possible impacts on native western pond turtles (Emys marmorata) Chelonian Conservation and Biology. 9: 297-302. DOI: 10.2744/Ccb-0820.1  0.548
2010 Caro T, Shaffer HB. Chelonian antipredator strategies: Preliminary and comparative data from tanzanian Pelusios Chelonian Conservation and Biology. 9: 302-305. DOI: 10.2744/Ccb-0812.1  0.369
2009 Spinks PQ, Shaffer HB. Conflicting mitochondrial and nuclear phylogenies for the widely disjunct Emys (Testudines: Emydidae) species complex, and what they tell us about biogeography and hybridization. Systematic Biology. 58: 1-20. PMID 20525565 DOI: 10.1093/Sysbio/Syp005  0.441
2009 Fitzpatrick BM, Johnson JR, Kump DK, Shaffer HB, Smith JJ, Voss SR. Rapid fixation of non-native alleles revealed by genome-wide SNP analysis of hybrid tiger salamanders. Bmc Evolutionary Biology. 9: 176. PMID 19630983 DOI: 10.1186/1471-2148-9-176  0.789
2009 Wang IJ, Savage WK, Shaffer HB. Landscape genetics and least-cost path analysis reveal unexpected dispersal routes in the California tiger salamander (Ambystoma californiense). Molecular Ecology. 18: 1365-74. PMID 19368644 DOI: 10.1111/J.1365-294X.2009.04122.X  0.772
2009 Spinks PQ, Thomson RC, Lovely GA, Shaffer HB. Assessing what is needed to resolve a molecular phylogeny: simulations and empirical data from emydid turtles. Bmc Evolutionary Biology. 9: 56. PMID 19284630 DOI: 10.1186/1471-2148-9-56  0.593
2009 Spinks PQ, Thomson RC, Shaffer HB. A reassessment of Cuora cyclornata Blanck, McCord and Le, 2006 (testudines, geoemydidae) and a plea for taxonomic stability Zootaxa. 58-68.  0.369
2008 Wang IJ, Shaffer HB. Rapid color evolution in an aposematic species: a phylogenetic analysis of color variation in the strikingly polymorphic strawberry poison-dart frog. Evolution; International Journal of Organic Evolution. 62: 2742-59. PMID 18764916 DOI: 10.1111/J.1558-5646.2008.00507.X  0.756
2008 Thomson RC, Shedlock AM, Edwards SV, Shaffer HB. Developing markers for multilocus phylogenetics in non-model organisms: A test case with turtles. Molecular Phylogenetics and Evolution. 49: 514-25. PMID 18761096 DOI: 10.1016/J.Ympev.2008.08.006  0.641
2008 Searcy CA, Shaffer HB. Calculating biologically accurate mitigation credits: insights from the California tiger salamander. Conservation Biology : the Journal of the Society For Conservation Biology. 22: 997-1005. PMID 18616742 DOI: 10.1111/J.1523-1739.2008.00971.X  0.359
2008 Gamble T, Berendzen PB, Shaffer HB, Starkey DE, Simons AM. Species limits and phylogeography of North American cricket frogs (Acris: Hylidae). Molecular Phylogenetics and Evolution. 48: 112-25. PMID 18462953 DOI: 10.1016/J.Ympev.2008.03.015  0.516
2008 Near TJ, Meylan PA, Shaffer HB. Caveats on the use of fossil calibrations for molecular dating: A reply to Parham and Irmis American Naturalist. 171: 137-140. DOI: 10.1086/524201  0.306
2007 Shaffer HB, Thomson RC. Delimiting species in recent radiations. Systematic Biology. 56: 896-906. PMID 18066926 DOI: 10.1080/10635150701772563  0.682
2007 Fitzpatrick BM, Shaffer HB. Hybrid vigor between native and introduced salamanders raises new challenges for conservation. Proceedings of the National Academy of Sciences of the United States of America. 104: 15793-8. PMID 17884982 DOI: 10.1073/Pnas.0704791104  0.709
2007 Fitzpatrick BM, Shaffer HB. Introduction history and habitat variation explain the landscape genetics of hybrid tiger salamanders. Ecological Applications : a Publication of the Ecological Society of America. 17: 598-608. PMID 17489263 DOI: 10.1890/06-0369  0.713
2007 Davidson C, Benard MF, Shaffer HB, Parker JM, O'Leary C, Conlon JM, Rollins-Smith LA. Effects of chytrid and carbaryl exposure on survival, growth and skin peptide defenses in foothill yellow-legged frogs. Environmental Science & Technology. 41: 1771-6. PMID 17396672 DOI: 10.1021/Es0611947  0.725
2007 Pauly GB, Piskurek O, Shaffer HB. Phylogeographic concordance in the southeastern United States: the flatwoods salamander, Ambystoma cingulatum, as a test case. Molecular Ecology. 16: 415-29. PMID 17217354 DOI: 10.1111/J.1365-294X.2006.03149.X  0.495
2007 Spinks PQ, Shaffer HB. Conservation phylogenetics of the Asian box turtles (Geoemydidae, Cuora): Mitochondrial introgression, numts, and inferences from multiple nuclear loci Conservation Genetics. 8: 641-657. DOI: 10.1007/S10592-006-9210-1  0.461
2006 Weisrock DW, Shaffer HB, Storz BL, Storz SR, Voss SR. Multiple nuclear gene sequences identify phylogenetic species boundaries in the rapidly radiating clade of Mexican ambystomatid salamanders. Molecular Ecology. 15: 2489-503. PMID 16842422 DOI: 10.1111/J.1365-294X.2006.02961.X  0.792
2005 Krenz JG, Naylor GJ, Shaffer HB, Janzen FJ. Molecular phylogenetics and evolution of turtles. Molecular Phylogenetics and Evolution. 37: 178-91. PMID 15964217 DOI: 10.1016/J.Ympev.2005.04.027  0.813
2005 Spinks PQ, Shaffer HB. Range-wide molecular analysis of the western pond turtle (Emys marmorata): cryptic variation, isolation by distance, and their conservation implications. Molecular Ecology. 14: 2047-64. PMID 15910326 DOI: 10.1111/J.1365-294X.2005.02564.X  0.491
2005 Near TJ, Meylan PA, Shaffer HB. Assessing concordance of fossil calibration points in molecular clock studies: an example using turtles. The American Naturalist. 165: 137-46. PMID 15729646 DOI: 10.1086/427734  0.429
2005 Trenham PC, Shaffer HB. Amphibian upland habitat use and its consequences for population viability Ecological Applications. 15: 1158-1168. DOI: 10.1890/04-1150  0.384
2004 Engstrom TN, Shaffer HB, McCord WP. Multiple data sets, high homoplasy, and the phylogeny of softshell turtles (Testudines: Trionychidae). Systematic Biology. 53: 693-710. PMID 15545250 DOI: 10.1080/10635150490503053  0.82
2004 Shaffer HB, Pauly GB, Oliver JC, Trenham PC. The molecular phylogenetics of endangerment: cryptic variation and historical phylogeography of the California tiger salamander, Ambystoma californiense. Molecular Ecology. 13: 3033-49. PMID 15367118 DOI: 10.1111/J.1365-294X.2004.02317.X  0.495
2004 Shaffer HB, Fellers GM, Voss SR, Oliver JC, Pauly GB. Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii) complex. Molecular Ecology. 13: 2667-77. PMID 15315679 DOI: 10.1111/J.1365-294X.2004.02285.X  0.657
2004 Fitzpatrick BM, Shaffer HB. Environment-dependent admixture dynamics in a tiger salamander hybrid zone. Evolution; International Journal of Organic Evolution. 58: 1282-93. PMID 15266977 DOI: 10.1111/J.0014-3820.2004.Tb01707.X  0.674
2004 Spinks PQ, Shaffer HB, Iverson JB, McCord WP. Phylogenetic hypotheses for the turtle family Geoemydidae. Molecular Phylogenetics and Evolution. 32: 164-82. PMID 15186805 DOI: 10.1016/J.Ympev.2003.12.015  0.431
2004 Fujita MK, Engstrom TN, Starkey DE, Shaffer HB. Turtle phylogeny: insights from a novel nuclear intron. Molecular Phylogenetics and Evolution. 31: 1031-40. PMID 15120399 DOI: 10.1016/J.Ympev.2003.09.016  0.796
2004 SHAFFER HB. The Amphibians, Reptiles and a Whole Lot More Conservation Biology. 18: 1440-1447. DOI: 10.1111/J.1523-1739.2004.1852_1.X  0.377
2003 Voss SR, Prudic KL, Oliver JC, Shaffer HB. Candidate gene analysis of metamorphic timing in ambystomatid salamanders. Molecular Ecology. 12: 1217-23. PMID 12694285 DOI: 10.1046/J.1365-294X.2003.01806.X  0.542
2003 Starkey DE, Shaffer HB, Burke RL, Forstner MR, Iverson JB, Janzen FJ, Rhodin AG, Ultsch GR. Molecular systematics, phylogeography, and the effects of Pleistocene glaciation in the painted turtle (Chrysemys picta) complex. Evolution; International Journal of Organic Evolution. 57: 119-28. PMID 12643572 DOI: 10.1111/J.0014-3820.2003.Tb00220.X  0.731
2003 Riley SPD, Shaffer HB, Voss SR, Fitzpatrick BM. Hybridization between a rare, native tiger salamander (Ambystoma californiense) and its introduced congener Ecological Applications. 13: 1263-1275. DOI: 10.1890/02-5023  0.773
2003 Spinks PQ, Pauly GB, Crayon JJ, Shaffer HB. Survival of the western pond turtle (Emys marmorata) in an urban California environment Biological Conservation. 113: 257-267. DOI: 10.1016/S0006-3207(02)00392-0  0.453
2002 Sanderson MJ, Shaffer HB. Troubleshooting molecular phylogenetic analyses Annual Review of Ecology and Systematics. 33: 49-72. DOI: 10.1146/Annurev.Ecolsys.33.010802.150509  0.358
2002 Davidson C, Shaffer HB, Jennings MR. Spatial tests of the pesticide drift, habitat destruction, UV-B, and climate-change hypotheses for California amphibian declines Conservation Biology. 16: 1588-1601. DOI: 10.1046/J.1523-1739.2002.01030.X  0.605
2002 Engstrom TN, Shaffer HB, McCord WP. Phylogenetic diversity of endangered and critically endangered southeast Asian softshell turtles (Trionychidae: Chitra) Biological Conservation. 104: 173-179. DOI: 10.1016/S0006-3207(01)00161-6  0.837
2001 Davidson C, Shaffer HB, Jennings MR. Declines of the California red-legged frog: Climate, UV-B, habitat, and pesticides hypotheses Ecological Applications. 11: 464-479. DOI: 10.1890/1051-0761(2001)011[0464:Dotcrl]2.0.Co;2  0.602
2000 Voss SR, Shaffer HB, Taylor J, Safi R, Laudet V. Candidate gene analysis of thyroid hormone receptors in metamorphosing vs. nonmetamorphosing salamanders. Heredity. 85: 107-14. PMID 11012711 DOI: 10.1046/J.1365-2540.2000.00714.X  0.538
2000 Voss SR, Shaffer HB. Evolutionary genetics of metamorphic failure using wild-caught vs. laboratory axolotls (Ambystoma mexicanum). Molecular Ecology. 9: 1401-7. PMID 10972778 DOI: 10.1046/j.1365-294X.2000.01025.x  0.524
2000 Shaffer HB, Fellers GM, Magee A, Voss SR. The genetics of amphibian declines: population substructure and molecular differentiation in the yosemite toad, Bufo canorus (Anura, bufonidae) based on single-strand conformation polymorphism analysis (SSCP) and mitochondrial DNA sequence data. Molecular Ecology. 9: 245-57. PMID 10736023 DOI: 10.1046/J.1365-294X.2000.00835.X  0.555
2000 Trenham PC, Shaffer HB, Koenig WD, Stromberg MR. Life history and demographic variation in the California Tiger Salamander (Ambystoma californiense) Copeia. 365-377. DOI: 10.1643/0045-8511(2000)000[0365:Lhadvi]2.0.Co;2  0.382
1998 Shaffer HB, Fisher RN, Davidson C. The role of natural history collections in documenting species declines. Trends in Ecology & Evolution. 13: 27-30. PMID 21238186 DOI: 10.1016/S0169-5347(97)01177-4  0.618
1998 Trenham PC, Shaffer HB, Moyle PB. Biochemical identification and assessment of population subdivision in morphologically similar native and invading smelt species (Hypomesus) in the Sacramento-San Joaquin estuary, California Transactions of the American Fisheries Society. 127: 417-424. DOI: 10.1577/1548-8659(1998)127<0417:Biaaop>2.0.Co;2  0.454
1997 Shaffer HB, Meylan P, McKnight ML. Tests of turtle phylogeny: molecular, morphological, and paleontological approaches. Systematic Biology. 46: 235-68. PMID 11975342 DOI: 10.1093/Sysbio/46.2.235  0.42
1997 Voss SR, Shaffer HB. Adaptive evolution via a major gene effect: paedomorphosis in the Mexican axolotl. Proceedings of the National Academy of Sciences of the United States of America. 94: 14185-9. PMID 9391174 DOI: 10.1073/Pnas.94.25.14185  0.582
1997 McKnight ML, Shaffer HB. Large, rapidly evolving intergenic spacers in the mitochondrial DNA of the salamander family Ambystomatidae (Amphibia: Caudata). Molecular Biology and Evolution. 14: 1167-76. PMID 9364774  0.314
1997 Irschick DJ, Shaffer HB. The polytypic species revisited: Morphological differentiation among tiger salamanders (Ambystoma tigrinum) (Amphibia: Caudata) Herpetologica. 53: 30-49.  0.311
1996 Shaffer HB, McKnight ML. THE POLYTYPIC SPECIES REVISITED: GENETIC DIFFERENTIATION AND MOLECULAR PHYLOGENETICS OF THE TIGER SALAMANDER AMBYSTOMA TIGRINUM (AMPHIBIA: CAUDATA) COMPLEX. Evolution; International Journal of Organic Evolution. 50: 417-433. PMID 28568845 DOI: 10.1111/J.1558-5646.1996.Tb04503.X  0.534
1996 Voss SR, Shaffer HB. What insights into the developmental traits of urodeles does the study of interspecific hybrids provide? The International Journal of Developmental Biology. 40: 885-93. PMID 8877462  0.516
1996 Shaffer HB, Randal Voss S. Phylogenetic and mechanistic analysis of a developmentally integrated character complex: Alternate life history modes in ambystomatid salamanders American Zoologist. 36: 24-35. DOI: 10.1093/Icb/36.1.24  0.505
1996 Fisher RN, Shaffer HB. The decline of amphibians in California's Great Central Valley | La declinacion de anfibios en el Gran Valle Central de California Conservation Biology. 10: 1387-1397. DOI: 10.1046/J.1523-1739.1996.10051387.X  0.462
1996 Shaffer HB, Mcknight ML. The polytypic species revisited: Genetic differentiation and molecular phylogenetics of the tiger salamander Ambystoma Tigrinum (amphibia: caudata) complex Evolution. 50: 417-433.  0.335
1995 Stanley SE, Moyle PB, Shaffer HB. Allozyme analysis of delta smelt, Hypomesus transpacificus and longfin smelt, Spirinchus thaleichthys in the Sacramento-San Joaquin Estuary, California Copeia. 390-396. DOI: 10.2307/1446902  0.424
1994 Wade MJ, McKnight ML, Shaffer HB. THE EFFECTS OF KIN-STRUCTURED COLONIZATION ON NUCLEAR AND CYTOPLASMIC GENETIC DIVERSITY. Evolution; International Journal of Organic Evolution. 48: 1114-1120. PMID 28564478 DOI: 10.1111/J.1558-5646.1994.Tb05298.X  0.426
1993 Shaffer HB. Phylogenetics of model organisms: The laboratory axolotl, Ambystoma mexicanum Systematic Biology. 42: 508-522. DOI: 10.1093/Sysbio/42.4.508  0.44
1992 Parichy DM, Shaffer HB, Mangel M, McKinney ML, McNamara KJ. Heterochrony as a Unifying Theme in Evolution and Development Evolution. 46: 1252. DOI: 10.2307/2409775  0.605
1992 Parichy DM, Shaffer HB, Mangel M. HETEROCHRONY AS A UNIFYING THEME IN EVOLUTION AND DEVELOPMENT Evolution. 46: 1252-1254. DOI: 10.1111/J.1558-5646.1992.Tb00638.X  0.605
1991 Clark JM, Kraus F, Shaffer HB. When molecules and morphology clash: A phylogenetic analysis of the North American ambystomatid salamanders (caudata: Ambystomatidae) Systematic Biology. 40: 284-303. DOI: 10.1093/Sysbio/40.3.284  0.448
1989 Shaffer HB, Breden F. The Relationship between Allozyme Variation and Life History: Non-Transforming Salamanders Are Less Variable Copeia. 1989: 1016. DOI: 10.2307/1445988  0.306
1987 Inger RF, Shaffer HB, Koshy M, Bakde R. Ecological structure of a herpetological assemblage in South India. Amphibia-Reptilia. 8: 189-207. DOI: 10.1163/156853887X00234  0.362
1985 Shaffer HB, Lauder GV. PATTERNS OF VARIATION IN AQUATIC AMBYSTOMATID SALAMANDERS: KINEMATICS OF THE FEEDING MECHANISM. Evolution; International Journal of Organic Evolution. 39: 83-92. PMID 28563645 DOI: 10.1111/J.1558-5646.1985.Tb04081.X  0.313
1982 Feder ME, Lynch JF, Shaffer HB, Wake DB. Field body temperatures of tropical and temperature zone salamanders Smithsonian Herpetological Information Service. 52: 1-23. DOI: 10.5479/SI.23317515.52.1  0.368
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