Publications

Follow my work on Google Scholar, ResearchGate, and Web of Science (formerly Publons)

In review/in revision

22. The avian lung mycobiome: Phylogenetic and ecological drivers of lung-fungal communities and their potential pathogens.

Salazar-Hamm, PS, CR Gadek, MA Mann, M Steinberg, KN Montoya, M Behnia, EF Gyllenhaal, SS Brady, OM Takano,  JL Williamson, CC Witt, and DO Natvig. preprint

21. Resilience and robustness: From sub-organismal responses to communities. 

Vitousek, MN, CC Taff, and JL Williamson

20. Taxonomy, nomenclature, and identification of the giant hummingbirds (Patagona spp.) (Aves: Trochilidae)

Williamson, JL, CR Gadek, BW Robinson, E Bautista, SM Bauernfeind, MJ Baumann, EF Gyllenhaal, PP Marra, N Ricote, ND Singh, T Valqui, and CC Witt 

preprint (updated September 2024)

2024

19. On the physiology of high-altitude flight and altitudinal migration in birds

Ivy, CM and JL Williamson

Integrative and Comparative Biology 64: 1766-1779 pdf

18. Extreme elevational migration spurred cryptic speciation in giant hummingbirds

Williamson, JL, EF Gyllenhaal, SM Bauernfeind, E Bautista, MJ Baumann, CR Gadek, PP Marra, N Ricote, T Valqui, F Bozinovic, ND Singh, and CC Witt 

Proceedings of the National Academy of Sciences 121 (21) e2313599121 pdf thread

Popular press: CNN, The Times London, BBC Wildlife, Audubon Magazine, Newsweek, Infobae, BioBioChile, Cooperativa Ciencia, IFL Science & others

Press releases: Cornell Chronicle & UNM Newsroom

PNAS Commentary: Endurance athletes hiding in plain sight in the Andes

Podcast: Birds of a Feather Talk Together, Episode 49: Giant Hummingbird

17. What can tree swallows teach us about biology?

Miller, CR, JL Houtz, N Mejia, NJ Morris, MA Pipkin, A Shankar, JJ Uehling, JL Williamson, and MN Vitousek

Frontiers for Young Minds 12:1274157 pdf

16. Extraordinary levels of per- and polyfluoroalkyl substances (PFAS) in vertebrate animal tissues at a New Mexico desert oasis: multiple pathways for wildlife and human exposure

Witt, CC, CR Gadek, J-L Cartron, MJ Andersen, ML Campbell, M Castro-Farías, EF Gyllenhaal, AB Johnson, J Malaney, KN Montoya, A Patterson, NT Vinciguerra, JL Williamson, JA Cook, and JL Dunnum 

Environmental Research 249: 118229 pdf

Press releases: UNM Newsroom

2023

15. Freshwater parasites as potential barriers to seabird dispersal: Evidence from vagrant booby specimens in western North America 

Baumann, MJ, SV Brant, SM Bauernfeind, CRB Gerhart, JL Williamson, AB Johnson, G Spellman, S Uhrig, S West, and CC Witt 

Wilson Journal of Ornithology 135(3): 327-344 pdf

14. Hummingbird blood traits track oxygen availability across space and time 

Williamson, JL, EB Linck, E Bautista, A Smiley, JA McGuire, R Dudley, and CC Witt 

Ecology Letters 26(7): 1-14 pdf data thread

13. Blood variation implicates respiratory limits on elevational ranges of Andean birds 

Linck, EB, JL Williamson, E Bautista, EJ Beckman, PM Benham, SG DuBay, LM Flores, CR Gadek, AB Johnson, MR Jones, J Núñez-Zapata, A Quiñonez, CJ Schmitt, D Susanibar, J Tiravanti, K Verde-Guerra, NA Wright, T Valqui, JF Storz, and CC Witt

American Naturalist 201(5): 741-754 pdf

2022

12. Intra- and interspecific nest stacking of marsh-dwelling songbirds 

Gadek, C, JL Williamson, and CC Witt 

Biotropica 54(5): 1131–1136 pdf

11. Genetic confirmation of a hybrid between two highly divergent cardinalid species: a Rose-breasted Grosbeak (Pheucticus ludovicianus) and a Scarlet Tanager (Piranga olivacea)

Toews, DPL, T Rhinehard, R Mulvihill, SC Galen, S Gosser, T Johnson, JL Williamson, AW Wood, and SC Latta 

Ecology and Evolution 12(8): e9512 pdf

Popular press: National Geographic, NPR, WESA Pittsburgh NPR News Station, IFL Science & others

2021

10. Predictable outcomes of warbler hybridization: Synthesis and an exceptional Yellow x Black-throated Blue Warbler (Setophaga petechia x S. caerulescens) pairing 

Williamson JL*, EF Gyllenhaal*, KD Oliver, SS Brady, AB Johnson, M Michelsohn, and MJ Andersen  

* = Equal contributions

Wilson Journal of Ornithology 133(1): 82-102 pdf

Wilson Ornithological Society blog post

9. A lightweight backpack harness for tracking hummingbirds

Williamson, JL and CC Witt 

Journal of Avian Biology e02802 pdf data thread

harness construction guide (downloadable printout for fieldwork)

8. Elevational niche-shift migration: Why the degree of elevational change matters for the ecology, evolution, and physiology of migratory birds *Editor's Choice & Finalist for the Wesley Lanyon Award 

Williamson, JL and CC Witt

Ornithology 138(2): 1-26 pdf data thread

Popular press: Current Conservation

Featured in BioOne Vista rainforest ecology special issue (June 2022)

7. Contrasting drivers of diversity in hosts and parasites across the tropical Andes

McNew, SM, LN Barrow, JL Williamson, SC Galen, H Skeen, SG DuBay, AM Gaffney, AB Johnson, E Bautista, P Ordoñez, CJ Schmitt, A Smiley, T Valqui, JM Bates, SJ Hackett, and CC Witt

Proceedings of the National Academy of Sciences 118(12) e2010714118 pdf

Press releases: UNM Newsroom and The Field Museum 

6. Evidence of brood parasitism and quantification of range-wide overlap between the Olive Warbler and Brown-headed Cowbird

Williamson, JL and MJ Baumann

Western Birds 52(1): 68-75 pdf

5. Comparing community composition despite incomplete sampling and uneven abundance: a case study of sky-island haemosporidian parasites

Barrow LN, SM Bauernfeind, PA Cruz, JL Williamson, DL Wiley, JE Ford, MJ Baumann, SS Brady, AN Chavez, CR Gadek, SC Galen, AB Johnson, XM Mapel, RA Marroquin-Flores, TE Martinez, JM McCullough, J McLaughlin, and CC Witt

Oecologia 195: 435-451 pdf 

PubNavigator article 

2020

4. Metatranscriptomics yields new genomic resources and sensitive detection of infections for diverse parasites

Galen, SC, J Borner, JL Williamson, CC Witt, and SL Perkins

Molecular Ecology Resources 20: 14-28 pdf

Perspective piece in Molecular Ecology Resources 20: 8-10

2019

3. Ecology, not distance, explains community composition in parasites of sky-island Audubon’s Warblers

Williamson, JL, CJ Wolf, LN Barrow, MJ Baumann, SC Galen, CJ Schmitt, D Schmitt, AS Winter, and CC Witt

International Journal for Parasitology 49 (6): 437-448 pdf

2017

2. Diversity, abundance, and host relationships of avian malaria and related haemosporidians in New Mexico pine forests

Marroquin-Flores, RA, JL Williamson, AN Chavez, SM Bauernfeind, MJ Baumann, CR Gadek, AB Johnson, JM McCullough, CC Witt, and LN Barrow 

PeerJ 5: e3700 pdf

1. Predator playback, foraging height, and phylogeny affect gap-crossing behavior in tropical forest birds

Williamson, JL and ME Fagan

Ornitología Neotropical 28: 163-174 pdf

Non-refereed Publications

5. The role of elevation in the migration, physiology, and genomic diversification of birds

Williamson, JL. 2024. Dissertation, University of New Mexico.

*Winner of the Tom. L. Popejoy Prize for best dissertation, University of New Mexico   

4. Golden-plumed Parakeet (Leptosittaca branickii), version 1.0.

Williamson, JL. 2020. Birds of the World (SM Billerman, BK Keeney, PG Rodewald and TS Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA.   

3. Reproductive biology, behavior, and population demographics of Andean Ibis (Theristicus branickii) in Ecuador

Williamson, JL. 2015. Technical Report, Jocotoco Foundation.

2. Influence of gap width and perceived risk of predation on gap-crossing behavior of resident passerine birds in a Northern hardwood forest

Williamson, JL. 2012. Undergraduate Senior Thesis, Middlebury College.

1. Dos especies de pericos amenazados en el sureste del Ecuador: biología reproductiva y aspectos ecológicos del Perico Cachetidorado (Leptosittaca branickii) y el Perico Pechiblanco (Pyrrhura albipectus) en la Reserva Tapichalaca, Zamora-Chinchipe, Ecuador con notas sobre su campaña de protección

Williamson, JL. 2011. Independent Study Project (ISP) Collection, School for International Training (SIT), Ecuador.