Embedded Files
Peer-reviewed articles
42) Wuthrich KL & L Swierk. 2025. Colour-changing signals are independent of social interactions but may signal body condition in an Anolis lizard. Biological Journal of the Linnean Society 146: blaf075. https://doi.org/10.1093/biolinnean/blaf075
41) Martin AM, Cordero-De La Cruz D, & L Swierk. 2025. Greater dissolved oxygen increases dive duration in a semi-aquatic Anolis lizard and suggests physical gill use in a vertebrate. Journal of Experimental Biology 228: jeb250627. https://doi.org/10.1242/jeb.250627
** Featured in J Exp Biol(2025), 228:jeb25134: "Evidence that submerged water anoles breathe oxygen through bubble gill"
40) Santiago J & L Swierk. 2025. Arboreal mammal use of canopy walkway bridges in an Amazonian forest with continuous canopy cover. Neotropical Biology and Conservation 20: 281-294. doi: 10.3897/neotropical.20.e154791 PDF
39) Warburton A, KJ MacLeod, LK Freidenburg, DK Skelly, & L Swierk. 2025. Wood frog (Rana sylvatica) testicular microstructure correlates with plasma hormone concentrations during late-stage spermatogenesis. Herpetological Conservation & Biology 20: 343-352. PDF
38) Swierk L. 2024. Novel rebreathing adaptation extends dive time in a semi-aquatic lizard. Biology Letters 20: 20240371 https://doi.org/10.1098/rsbl.2024.0371 PDF
** Featured in Nature (2024), 633:743 “This ‘scuba diving’ lizard has a self-made air supply”
** Invited Cassyni seminar (Royal Society Publishing): https://doi.org/10.52843/cassyni.gnzqb0
37) Summers F, AM Tuske, C Puglisi, A Wong, A Rojo & L Swierk. 2024. Ambient light spectrum affects larval Mexican jumping bean moth (Cydia saltitans) behavior despite light obstruction from host seeds. Behavioural Processes 221: 105093 doi: 10.1016/j.beproc.2024.105093 PDF
36) Purtell A, J Anderson, R Ferguson, K Juskiewicz, MH Lee, MJ Lee, & L Swierk. 2024. Altered heat-avoidance behavior following damage to the extended architecture of Mexican jumping bean moth larvae (Cydia saltitans). Journal of Insect Behavior doi: 10.1007/s10905-024-09861-y PDF
35) Rojo A & L Swierk. 2024. How does rapid body color change affect the conspicuity of lizards to their predators and conspecifics? Behavioral Ecology and Sociobiology 78: 78. PDF
34) Parker DJ, Basak H, Foltynski P, & L Swierk. 2024. Changes to the acoustic properties of Gromphadorhina portentosa defensive sounds when exposed to the molting hormone, 20-hydroxyecdysone. Ethology 130: e13463. PDF
33) Martin AM, CK Boccia, & L Swierk. 2024. Diving behavior in semi-aquatic Anolis lizards results in heat loss with sex-specific cooling tolerance. Behavioral Ecology and Sociobiology 78: 33. PDF
32) Lopera D, KC Guo, BJ Putman, & L Swierk. 2022. Keeping it cool to take the heat: Tropical lizards have greater thermal tolerance in less disturbed habitats. Oecologia 199: 819–829. PDF
31) Swierk L, M Petrula, & P Esquete. 2022. Diving behavior in a Neotropical spider (Trechalea extensa) as a potential antipredator tactic. Ethology 128: 508-512. PDF
30) Wuthrich KL, A Nagel, & L Swierk. 2022. Rapid body color change provides lizards with facultative crypsis in the eyes of their avian predators. The American Naturalist 199: 277-290. PDF
29) Wuthrich KL, D Stock, J Talavera, BJ Putman, & L Swierk. 2021. Sexual signal conspicuity is correlated with tail autotomy in an anoline lizard. Current Zoology 68: 129-132. PDF
28) Swierk L, & T Langkilde. 2021. Size-assortative mating in explosive breeders: A case study of adaptive male mate choice in anurans. Behaviour 158: 849-868. PDF
27) Meadow M, J Tennessen, & L Swierk. 2021. A novel counting method for wood frog mating calls that preserves accuracy. Herpetological Review 52: 517-520. PDF
26) Buss N, L Swierk, & J Hua. 2021. Amphibian breeding phenology influences offspring size and response to a common wetland contaminant. Frontiers in Zoology, 18: Article 31. PDF
25) Schnell L, & L Swierk. 2021. Caudal autophagy in a sphaerodactyline gecko from the Peruvian Amazon. Herpetological Bulletin 157: 44-45. PDF
24) Boccia CK, L Swierk, FP Ayala-Varela, J Boccia, I Lima Borges, CA Estupiñán, AM Martin, RE Martínez-Grimaldo, S Ovalle, S Senthivasan, KS Toyama, M del Rosario Castañeda, A García, RE Glor, DL Mahler. 2021. Repeated evolution of underwater “rebreathing” in diving Anolis lizards. Current Biology 31: 2947-2954. PDF
23) Talavera JB, A Carriere, L Swierk, & BJ Putman. 2021. Tail autotomy is associated with boldness in male but not female water anoles. Behavioral Ecology and Sociobiology, 75: Article 44. PDF
22) Swierk L, JFF Boyer, J Chang, M Petelo, & SM Drobniak. 2021. Intrasexual variability of a conspicuous social signal influences attack rate of lizard models in an experimental test. Evolutionary Ecology 35: 131-146. PDF
Peer-reviewed articles
42) Wuthrich KL & L Swierk. 2025. Colour-changing signals are independent of social interactions but may signal body condition in an Anolis lizard. Biological Journal of the Linnean Society 146: blaf075. https://doi.org/10.1093/biolinnean/blaf075
41) Martin AM, Cordero-De La Cruz D, & L Swierk. 2025. Greater dissolved oxygen increases dive duration in a semi-aquatic Anolis lizard and suggests physical gill use in a vertebrate. Journal of Experimental Biology 228: jeb250627. https://doi.org/10.1242/jeb.250627
** Featured in J Exp Biol(2025), 228:jeb25134: "Evidence that submerged water anoles breathe oxygen through bubble gill"
40) Santiago J & L Swierk. 2025. Arboreal mammal use of canopy walkway bridges in an Amazonian forest with continuous canopy cover. Neotropical Biology and Conservation 20: 281-294. doi: 10.3897/neotropical.20.e154791 PDF
39) Warburton A, KJ MacLeod, LK Freidenburg, DK Skelly, & L Swierk. 2025. Wood frog (Rana sylvatica) testicular microstructure correlates with plasma hormone concentrations during late-stage spermatogenesis. Herpetological Conservation & Biology 20: 343-352. PDF
38) Swierk L. 2024. Novel rebreathing adaptation extends dive time in a semi-aquatic lizard. Biology Letters 20: 20240371 https://doi.org/10.1098/rsbl.2024.0371 PDF
** Featured in Nature (2024), 633:743 “This ‘scuba diving’ lizard has a self-made air supply”
** Invited Cassyni seminar (Royal Society Publishing): https://doi.org/10.52843/cassyni.gnzqb0
37) Summers F, AM Tuske, C Puglisi, A Wong, A Rojo & L Swierk. 2024. Ambient light spectrum affects larval Mexican jumping bean moth (Cydia saltitans) behavior despite light obstruction from host seeds. Behavioural Processes 221: 105093 doi: 10.1016/j.beproc.2024.105093 PDF
36) Purtell A, J Anderson, R Ferguson, K Juskiewicz, MH Lee, MJ Lee, & L Swierk. 2024. Altered heat-avoidance behavior following damage to the extended architecture of Mexican jumping bean moth larvae (Cydia saltitans). Journal of Insect Behavior doi: 10.1007/s10905-024-09861-y PDF
35) Rojo A & L Swierk. 2024. How does rapid body color change affect the conspicuity of lizards to their predators and conspecifics? Behavioral Ecology and Sociobiology 78: 78. PDF
34) Parker DJ, Basak H, Foltynski P, & L Swierk. 2024. Changes to the acoustic properties of Gromphadorhina portentosa defensive sounds when exposed to the molting hormone, 20-hydroxyecdysone. Ethology 130: e13463. PDF
33) Martin AM, CK Boccia, & L Swierk. 2024. Diving behavior in semi-aquatic Anolis lizards results in heat loss with sex-specific cooling tolerance. Behavioral Ecology and Sociobiology 78: 33. PDF
32) Lopera D, KC Guo, BJ Putman, & L Swierk. 2022. Keeping it cool to take the heat: Tropical lizards have greater thermal tolerance in less disturbed habitats. Oecologia 199: 819–829. PDF
31) Swierk L, M Petrula, & P Esquete. 2022. Diving behavior in a Neotropical spider (Trechalea extensa) as a potential antipredator tactic. Ethology 128: 508-512. PDF
30) Wuthrich KL, A Nagel, & L Swierk. 2022. Rapid body color change provides lizards with facultative crypsis in the eyes of their avian predators. The American Naturalist 199: 277-290. PDF
29) Wuthrich KL, D Stock, J Talavera, BJ Putman, & L Swierk. 2021. Sexual signal conspicuity is correlated with tail autotomy in an anoline lizard. Current Zoology 68: 129-132. PDF
28) Swierk L, & T Langkilde. 2021. Size-assortative mating in explosive breeders: A case study of adaptive male mate choice in anurans. Behaviour 158: 849-868. PDF
27) Meadow M, J Tennessen, & L Swierk. 2021. A novel counting method for wood frog mating calls that preserves accuracy. Herpetological Review 52: 517-520. PDF
26) Buss N, L Swierk, & J Hua. 2021. Amphibian breeding phenology influences offspring size and response to a common wetland contaminant. Frontiers in Zoology, 18: Article 31. PDF
25) Schnell L, & L Swierk. 2021. Caudal autophagy in a sphaerodactyline gecko from the Peruvian Amazon. Herpetological Bulletin 157: 44-45. PDF
24) Boccia CK, L Swierk, FP Ayala-Varela, J Boccia, I Lima Borges, CA Estupiñán, AM Martin, RE Martínez-Grimaldo, S Ovalle, S Senthivasan, KS Toyama, M del Rosario Castañeda, A García, RE Glor, DL Mahler. 2021. Repeated evolution of underwater “rebreathing” in diving Anolis lizards. Current Biology 31: 2947-2954. PDF
23) Talavera JB, A Carriere, L Swierk, & BJ Putman. 2021. Tail autotomy is associated with boldness in male but not female water anoles. Behavioral Ecology and Sociobiology, 75: Article 44. PDF
22) Swierk L, JFF Boyer, J Chang, M Petelo, & SM Drobniak. 2021. Intrasexual variability of a conspicuous social signal influences attack rate of lizard models in an experimental test. Evolutionary Ecology 35: 131-146. PDF
21) Fondren A, L Swierk, & BJ Putman. 2020. Clothing color mediates lizard responses to humans in a tropical forest. Biotropica 52: 172-181. PDF
20) Swierk L & T Langkilde. 2019. Fitness costs of mating with preferred females in a scramble mating system. Behavioral Ecology 30: 658-665. PDF
19) Putman BJ, K Azure, & L Swierk. 2018. Dewlap size in male water anoles associates with consistent inter-individual variation in boldness. Current Zoology 65: 189-195. PDF
18) Assis BA, L Swierk, & T Langkilde. 2018. Performance, behavior, and offspring morphology may offset reproductive cost of male-typical ornamentation for female lizards. Journal of Zoology 306: 235-242. PDF
17) Tennessen JB, SE Parks, L Swierk, LK Reinert, WM Holden, LA Rollins-Smith, T Langkilde. 2018. Frogs adapt to physiologically costly traffic noise. Proceedings of the Royal Society B 285: 20182194. PDF
16) Swierk L & T Langkilde. 2018. Does repeated human handling of study animals during the mating season affect their offspring? Journal of Experimental Zoology A 329: 80-86. PDF
15) Owen DAS, MS Smylie, & L Swierk. 2018. A new blood sampling method for smaller anurans that preserves critical features of specimens. Herpetological Review 49: 34-36. PDF
14) Lambert MR, BE Carlson, MS Smylie, & L Swierk. 2017. Ontogeny of sexual dichromatism in the explosively breeding wood frog. Herpetological Conservation and Biology 12: 447-456. PDF
13) Boyer J & L Swierk. 2017. Rapid body color brightening is associated with exposure to a stressor in an Anolis lizard. Canadian Journal of Zoology 95: 213-219. PDF
**Editor’s Choice article*
12) Petelo M & L Swierk. 2017. Trait allometries generate super-honesty in Anolis dewlaps and may underlie sexual dimorphism. Integrative Zoology 12: 97-111. https://doi.org/10.1111/1749-4877.12238 PDF
11) Stephenson BP, N Ihász, DC Byrd, J Swierk, & L Swierk. 2016. Temperature-dependent colour change is a function of sex and directionality of temperature shift in the eastern fence lizard (Sceloporus undulatus). Biological Journal of the Linnean Society 120: 396-409. PDF
10) Swierk L, JB Tennessen, & T Langkilde. 2015. Sperm depletion may not limit male reproduction in a capital breeder. Biological Journal of the Linnean Society 116: 684-690. PDF
9) Swierk L & SR Madigosky. 2014. Environmental perceptions and resource use in rural communities of the Peruvian Amazon (Iquitos and vicinity, Maynas Province). Tropical Conservation Science 7: 382-402. PDF Lay Summary
8) Swierk L, SP Graham & T Langkilde. 2014. The stress of scramble: sex differences in behavior and physiological stress response in a time-constrained mating system. Behavioral Ecology and Sociobiology 68: 1761 – 1768. PDF
7) Swierk L & T Langkilde. 2013. Bearded ladies: Females suffer fitness consequences when bearing male traits. Biology Letters 9: 20130644. PDF
6) Swierk L & T Langkilde. 2013. Sizing-up the competition: Factors modulating male display behavior during mate competition. Ethology 119: 948 – 959. PDF
5) Swierk L, A Myers & T Langkilde. 2013. Male mate preference is influenced by both female behaviour and morphology. Animal Behaviour 85: 1451 – 1457. PDF
4) Brossman K, B Carlson, L Swierk, & T Langkilde. 2013. Aquatic tail size carries over to the terrestrial phase without impairing locomotion in adult eastern red-spotted newts (Notophthalmus v. viridescens). Canadian Journal of Zoology 91: 7 – 12. PDF
3) Swierk L, M Ridgway, & T Langkilde. 2012. Female lizards discriminate between potential reproductive partners using multiple male traits when territory cues are absent. Behavioral Ecology and Sociobiology 66: 1033 -1043. PDF
2) Swierk L & T Langkilde. 2009. Micronutrient input into a mangrove ecosystem in Jobos Bay, Puerto Rico, by the exotic green iguana Iguana iguana. Current Zoology 55(6): 50-53. PDF
1) Young S & L Swiacki (former name). 2006. Surveying the forest biodiversity of Evansburg State Park: Plant community classification and species diversity assessment. International Journal of Botany 2: 293-299. PDF
Natural history notes and other peer-reviewed contributions
Kabbaj A, L Bousaid, G Lowney, & L Swierk. 2025. Female acceptance of mates is consistent across different sex ratios and male proximities in wood frog (Rana sylvatica) breeding aggregations. Binghamton University Undergraduate Journal, 10(2): Article 3. PDF
Benson E, L Swierk. 2024. Hemidactylus mabouia (Tropical House Gecko). Predation Escape. Herpetological Review 55: 262. PDF
McAloon FM & L Swierk. 2024. Mosquito ectoparasitism and potential body coloration defense in the Banded Tree Anole, Anolis transversalis Duméril, 1851. Herpetology Notes 17: 687-688. PDF
Hidalgo R, L Swierk. 2023. Anolis transversalis (Banded Tree Anole). Sleep Site Fidelity. Herpetological Review 54: 658-659. PDF
Swierk, L. 2023. Anolis aquaticus (= Norops aquaticus) (Water Anole). Diet. Herpetological Review 54: 462-463. PDF
Figueroa J, P Fison, J Harrington, & L Swierk. 2022. Anadia ocellata (Ocellated Anadia). Predation. Herpetological Review 53: 677. PDF
Natural history notes and other peer-reviewed contributions
Kabbaj A, L Bousaid, G Lowney, & L Swierk. 2025. Female acceptance of mates is consistent across different sex ratios and male proximities in wood frog (Rana sylvatica) breeding aggregations. Binghamton University Undergraduate Journal, 10(2): Article 3. PDF
Benson E, L Swierk. 2024. Hemidactylus mabouia (Tropical House Gecko). Predation Escape. Herpetological Review 55: 262. PDF
McAloon FM & L Swierk. 2024. Mosquito ectoparasitism and potential body coloration defense in the Banded Tree Anole, Anolis transversalis Duméril, 1851. Herpetology Notes 17: 687-688. PDF
Hidalgo R, L Swierk. 2023. Anolis transversalis (Banded Tree Anole). Sleep Site Fidelity. Herpetological Review 54: 658-659. PDF
Swierk, L. 2023. Anolis aquaticus (= Norops aquaticus) (Water Anole). Diet. Herpetological Review 54: 462-463. PDF
Figueroa J, P Fison, J Harrington, & L Swierk. 2022. Anadia ocellata (Ocellated Anadia). Predation. Herpetological Review 53: 677. PDF
Wuthrich KL, & L Swierk. 2021. Anolis aquaticus (= Norops aquaticus) (Water Anole). Dewlap coloration. Herpetological Review 52: 401-402. PDF
Ortega D, & L Swierk. 2020. Anolis aquaticus (= Norops aquaticus) (Water Anole). Female display behavior. Herpetological Review 51: 845-846. PDF
Swierk L, & T Langkilde. 2020. Rana sylvatica (Wood Frog). Overwintering. Herpetological Review 51: 527-528. PDF
Swierk L, A Carriere, M Delfin, A Fondren, D Lopera, & BJ Putman. 2019. Anolis aquaticus (= Norops aquaticus) (Water Anole). Egg size and oviposition sites. Herpetological Review 50: 360-362. PDF
Swierk L. 2019. Anolis aquaticus (= Norops aquaticus) (Water Anole): Underwater breathing. Herpetological Review 50: 134-135. PDF
Swierk L. 2019. Sceloporus malachiticus (Emerald Swift): Coloration. Herpetological Review 50: 145. PDF
Swierk L. 2019. Ongoing research on the ecology and behavior of Anolis aquaticus. In: Stroud, J.T., Geneva, A.J., Losos, J.B. (eds.), Anolis Newsletter VII. Washington University, St. Louis MO, https://doi.org/10.7936/gjg3-h168. PDF
Swierk L. 2018. Color Change. In: J Vonk and TK Shackelford (eds.), Encyclopedia of Animal Cognition and Behavior, Springer. doi: 10.1007/978-3-319-47829-6_462-1. PDF
Swierk L & S Drobniak. 2018. Ameiva festiva (= Holcosus festivus) (Central American Whiptail Lizard): Juvenile coloration. Herpetological Review 49: 534-535. PDF
Swierk L. 2015. Rana sylvatica (Wood Frog): Clutch size measurement. Herpetological Review 46: 544. PDF
Swierk L. 2012. Rana sylvatica (Wood Frog): Larval duration. Herpetological Bulletin 119: 39. PDF
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