* = grad student or post-doc co-author, § = undergraduate co-author, bold = Boyle lab members

[Copyright laws prevent me from posting pdfs of some of the papers below. Please email me or send a msg through researchgate if you are unable to access any of these papers.]

Peer-reviewed articles and book chapters

*Freeman, N.E., *K.M. Silber, T.J. Hefley, A.M. Louthan, and W.A. Boyle., in review. Changing precipitation regime threatens population growth and persistence of a declining grassland songbird. Global Change Biology

*Kraus, H.M., G.R. Houseman, M.E. Jameson, M.M. Reichenborn, W.A. Boyle, W.E. Jensen, in review. Nestling condition of a grassland bird is not associated with food availability in restored grasslands. Avian Conservation and Ecology

Boyle, W.A. and D. Sullins, in revision. Isotopic evidence of the prevalence of long-distance breeding dispersal in Grasshopper Sparrows, a declining grassland bird. Ornithology

Hefley, T.J., W.A. Boyle, and *N.M. Mohankumar, in revision. Accounting for location uncertainty in distance sampling data. Methods in Ecology and Evolution, arXiv preprint: arXiv:2005.14316

*Silber, K.M., W.K. Dodds, C.R. Mushrush, A.P. Capizzo, §G. Gibler, §E. Burnett, *M.E. Moriello, and W.A. Boyle, in press. The effectiveness of using virtual fencing for cattle to achieve conservation goals in tallgrass prairie. Rangelands

§Sroor, E.N.W.A. Boyle, §H.N. Castro-Miller, *K.S. Hobbs, §M.D. Reynaldo, *K.M. Silber, N.M. Mohankumar, §N.A. Wright, and *N.E. Freeman, 2024. Environmental drivers of shifts in female reproductive investment in quantity and quality in a grassland songbird. Ibis doi:10.1111/ibi.13379

*Silber, K.M., T.J. Hefley, H.N. Castro-Miller, Z. Ratajczak, and W.A. Boyle, 2024. The long shadow of woody encroachment: an integrated approach to modeling grassland songbird habitat. Ecological Applications 34:e2954. doi:10.1002/eap.2954

§Corimanya, J., *E. B. Winnicki-Smith, and W.A. Boyle, 2024. Experimental evidence that nest orientation influences microclimate in a temperate grassland. Journal of Field Ornithology 95(1):2. doi:10.5751/JFO-00387-950102

*Smith, E.B., §A.J. Roe, *K.M. Silber, *E.J. Williams, *S.K. Winnicki, and W.A. Boyle, 2024. 2024. Consequences of drought for grassland songbird reproduction. Ecosphere. 15(1):e4746. doi:10.1002/ecs2.4746

Bernaith-Plaisted, J.S., M.D. Correll, S.G. Somershoe, A.M. Dwyer, A. Bankert, A. Beh, H. Berlanga, W.A. Boyle, J.L. Cruz-Romo, T.L. George, J. Herkert, N. Koper, A. Macias-Duarte, A.O. Panjabi, O.M. Ramirez-Flores, B. Robinson, I. Ruvalcaba-Ortega, J. Sibbing, E.H. Strasser, M. Titulaer, W.E. van Pelt, and T. VerCautern, 2023. A review of conservation challenges and possible solutions for grassland birds of the North American Great Plains. Rangeland Ecology and Management 90:165-185. doi:10.1016/j.rama.2023.07.002

*Mohankumar, N.M., T.J. Hefley, *Silber, K.M., and W.A. Boyle, 2023. Data fusion of distance sampling and capture-recapture data. Journal of Spatial Statistics., 55:100756. doi:10.1016/j.spasta.2023.100756

*Freeman, N.E., §M. Gustafson, T.J. Hefley, and W.A. Boyle, 2023. Riding out the storm: depleted fat stores and elevated hematocrit in a small bodied endotherm exposed to severe weather. Conservation Physiology, 11:coad011. doi:10.1093/conphys/coad011

Fuxjager, M.J., Ryder, B.T., *C. Alfonso, C.N. Balakrishnan, *J. Barske, M. Bosholn, W.A. Boyle, E.L. Braun, I. Chiver, R. Dakin, L. Day, *R. Driver, L. Fusani, B. Horton, R.T. Kimball, *S. Lipshutz, C. Mello, M. Miles, E. Miller, I. Moore, G. Cardenas Posada, *B. Vernasco, M. Webster, M. Wirthlin, and B.A. Schlinger, 2023. Systems biology as a framework to understand the physiology of behavior—from concepts to a case study in birds. Hormones and Behavior, 151:105340. doi:10.1016/j.yhbeh.2023.105340

*Silber, K.M., *N.M. Mohankumar, T.J. Hefley, and W.A. Boyle, 2023. Apparent survival is associated with lagged precipitation in a grassland songbird. Journal of Wildlife Management. doi:10.1002/jwmg.22371

*Shogren, E.H., M. Anciães, J. Barske, C. Cestari, E.H. DuVal, *M.G. Gaiotti, *E.I. Johnson, R.T. Kimball, M.A. Marini, T.B. Ryder, M.N. Scholer, J. Ungvári, S.A. White, W.A. Boyle, 2022. Dancing drives evolution of sexual size dimorphism in manakins. Proceedings of the Royal Society B, 289: 20212540. doi:10.1098/rspb.2021.2540

*Verheijen, B.H.F, *A.N. Erickson, W.A. Boyle, §K.S. Leveritte, §J.L Sojka, §L.A. Spahr, *E.J. Williams, *S.K. Winnicki, B.K. Sandercock, 2022. Predation, parasitism, and drought counteract the benefits of patch-burn grazing for the reproductive success of grassland songbirds. Ornithological Applications, duab066. doi:10.1093/ornithapp/duab066

*Shogren, E.H., M.A. Jones, and W.A. Boyle, 2021. Dancing in the rain: environmental drivers of behavioral variability in White-ruffed Manakin courtship. Integrative and Comparative Biology, icab085. doi: 10.1093/icb/icab085

*Shogren, E.H. and W.A. Boyle, 2021. Spread the word: male manakins advertise the presence of display sites with neighboring competitors. Animal Behaviour, 177:147-158. doi: 10.1016/j.anbehav.2021.04.026

*Herse, M.R., K.A. With, and W.A. Boyle, 2020. Grassland fragmentation affects declining tallgrass prairie birds most where large amounts of grassland remain. Landscape Ecology, 35:2791–2804. doi: 10.1007/s10980-020-01064-y

Boyle, W.A., *E.H. Shogren, and J.D. Brawn, 2020. Hygric niches for tropical endotherms. Trends in Ecology and Evolution, 35:938-952. doi: 10.1016/j.tree.2020.06.011. Check out this video explainer of the first figure in the paper. Winner of the 2021 Katma Award from the American Ornithological Society.

*Bruckerhoff, L., *R. Connell, *J. Guinnip, *E. Adhikari, *A. Godar, K. Gido, W.A. Boyle, A. Hope, A. Joern, and E. Welti, 2020. Harmony on the prairie? Grassland plant and animal community responses to variation in climate and land management. Ecology, 101:e02986. doi:10.1002/ecy.2986

*Winnicki, S.K., §S.M. Munguía, *E.J. Williams, and W.A. Boyle, 2020. Social interactions do not drive territory aggregation in a grassland songbird. Ecology, 101:e02927. doi:10.1002/ecy.2927  Sarah made this awesome comic-strip summary:

*Burnett, K., *M.N. Zipple, *L.T. Phillips, *P. Panwar, L.P. McGuire, and W.A. Boyle, 2019. Nocturnal reductions in body temperature in high-elevation Neotropical birds. Tropical Ecology. doi: 10.1007/s42965-019-00051-y

Boyle, W.A. and *E.H. Shogren, 2019. Sex and deception: a rare example of cheating in a lekking tropical bird. Journal of Ethology, 37:151-155. doi: 10.1007/s10164-019-00592-8. Watch the video!

*Williams, E.J. and W.A. Boyle, 2019. Causes and consequences of avian dispersal decisions in a dynamic grassland environment. Animal Behaviour, 155:77-87. doi: 10.1016/j.anbehav.2019.06.009   Check out (or download) the graphical abstract:

*Shogren, E.H., M.A. Jones, B.K. Sandercock, and W.A. Boyle, 2019. Apparent survival of birds in a wet, tropical, premontane forest. Journal of Field Ornithology, 90:117-127. doi: 10.1111/jofo.12290

McGuire, L.P., L.A. Kelly, D.E. Baloun, W.A. Boyle, T.L. Cheng, J. Clerc, N.W. Fuller, A.R. Gerson, *K.A. Jonasson, E.J. Rogers, *A.S. Sommers, C.G. Guglielmo, 2018. Common condition indices are no more effective than body mass for estimating fat stores in insectivorous bats. Journal of Mammalogy, 99:1065-1071. doi: 10.1093/jmammal/gyy103

Boyle, W.A., 2018. “Birds on the move: ecology of migration and dispersal” in Morrison, M. L., A. D. Rodewald, G. Voelker, M. R. Colon, and J. F. Prather, editors. Ornithology: Foundation, Critique, and Application, Johns Hopkins University Press, Baltimore, MD

*Herse, M.R., K.A. With, and W.A. Boyle, 2018.  The importance of core habitat for a threatened species in changing landscapes. Journal of Applied Ecology, 55:2241-2252doi: 10.1111/1365‐2664.13234

*Hsiung, A., W.A. Boyle, R.J. Cooper, and R.B. Chandler, 2018. Altitudinal migration: ecological drivers, knowledge gaps, and conservation implications. Biological Reviews, 93: 2049-2070. doi: 10.1111/brv.12435

*Williams, E.J. and W.A. Boyle, 2018. Patterns and correlates of within-season breeding dispersal: a common strategy in a declining grassland songbirdThe Auk: Ornithological Advances, 135:1-14. doi: 10.1642/AUK-17-69.1. Press release and blog about this article, or check out the graphical abstract:

§Sommers, A.S., W.A. Boyle, and L.P. McGuire, 2017.Validation of a field-ready handheld meter for plasma β-hydroxybutyrate analysis Journal of Field Ornithology, 88:399-404. doi: 10.1111/jofo.12233

*Herse, M.R., M.E. Estey, P.J. Moore, B.K. Sandercock and W.A. Boyle, 2017. Landscape context drives breeding habitat selection by an enigmatic grassland songbird. Landscape Ecology, 32:2351-2364. doi: 10.1007/s10980-017-0574-z

Boyle, W.A., 2017. Altitudinal bird migration in North America. The Auk: Ornithological Advances, 134, 443-465. doi: 10.1642/AUK-16-228.1. Blog post about this article, or check out the graphical abstract:

Boyle, W.A. and K. Martin, 2016. The conservation value of high elevation habitats to North American migrant birdsBiological Conservation, 192:461-478. doi: 10.1016/j.biocon.2015.10.008. Supplementary material

Boyle, W.A., B.K. Sandercock, and K. Martin, 2016.  Patterns and drivers of intraspecfic variation in avian life-histories along elevational gradients: a meta-analysisBiological Reviews, 91:469-482; doi: 10.1111/brv.12180

*Visco, D.M., N.L. Michel, W.A. Boyle, B.J. Sigel, S. Woltmann, T.W. Sherry, 2015. Patterns and causes of understory bird declines in human-disturbed tropical forest landscapes: a case study from Central AmericaBiological Conservation, 191:17-129. doi: 10.1016/j.biocon.2015.05.018

Boyle, W.A. and S.J. Sigel, 2015. Ongoing changes in the avifauna of La Selva Biological Station, Costa Rica: twenty-three years of Christmas Bird CountsBiological Conservation, 188:11-21. (invited special issue: Ecology and Conservation of Avian Insectivores of the Rainforest Understory: a Pan-Tropical Perspective). doi:10.1016/j.biocon.2015.01.004. Supplementary material (Invited special issue: Ecology and Conservation of Avian Insectivores of the Rainforest Understory: a Pan-Tropical Perspective)

Boyle, W.A. and E. Waterman, 2015. The ecology of musical performance: toward a robust methodology. Pages 25-39 in Current Directions in Ecomusicolgy: Music, Culture, Nature. A. S. Allen & K. Dawe, editors, Routledge Publishers, New York, NY (Invited edited book chapter)

Ross, J.D., J.F. Kelly, E.S. Bridge, M.H. Engle, D.L. Reinking, and W.A. Boyle, 2015. Pallid bands in feathers and associated stable isotope signatures reveal effects of severe weather stressors on fledgling sparrows. PeerJ 3:e814. doi: 10.7717/peerj.814

*Jones, M.A., E.H. DuVal, and W.A. Boyle, 2014. Individual and temporal variability in the courtship behavior of White-ruffed Manakins (Corapipo altera), a species with facultative cooperative displays. The Auk: Ornithological Advances, 131, 727-742. doi: 10.1642/AUK-14-96.1

McGuire, L.P., and W.A. Boyle, 2013. Altitudinal migration in bats: evidence, patterns, and processes. Biological Reviews, 88, 767-786. doi: 10.1111/brv.12024

Boyle, W.A. and J.L. Bronstein, 2012. Phenology of tropical understory trees: patterns and correlatesRevista de Biología Tropical, 60, 1415-1430.  Supplementary material

Boyle, W.A., D.W. Winkler, and C.G. Guglielmo, 2012. Rapid loss of fat but not lean mass prior to chick provisioning supports the flight efficiency hypothesis in Tree Swallows. Functional Ecology 26, 895-903. doi: 10.1111/j.1365-2435.2012.01997.x. Lay Summary

Boyle, W.A., 2011. Short-distance partial migration of Neotropical birds: a community-level test of the foraging limitation hypothesis. Oikos, 120, 1803-1816. doi: 10.1111/j.1600-0706.2011.19432.x. (Invited submission, special issue on ecology and evolution of partial migration)

Boyle, W.A., C.G. Guglielmo, K.A. Hobson, and D.R. Norris, 2011. Lekking birds in a tropical forest forego sex for migration. Biology Letters, 7, 661-663. Supplementary material

Boyle, W.A., C.J. Conway, J.L. Bronstein, 2011. Why do some, but not all, birds migrate? A comparative study of diet breadth and fruit preferenceEvolutionary Ecology, 25, 219-236. doi: 10.1007/s10682-010-9403-4. Supplementary material (Winning OTS Best Student Paper Award)

Boyle, W.A., D.R. Norris, and C.G. Guglielmo, 2010. Storms drive altitudinal migration in a tropical bird. Proceedings of the Royal Society-B, 277, 2511-2519

Sol, D., N. Garcia, A. Iwaniuk, K. Davis, A. Meade, W.A. Boyle, and T. Székely, 2010. Evolutionary divergence in brain size between migratory and resident birds. PLoSOne, 5, e9617

Boyle, W.A., 2010. Does food abundance explain altitudinal migration in a tropical frugivorous bird? Canadian Journal of Zoology, 88, 204-213. doi: 10.1139/Z09-133. Supplementary material

§Lumpkin, H. and W.A. Boyle, 2009. Effects of forest age on fruit composition and removal in tropical bird-dispersed understorey trees. Journal of Tropical Ecology, 25, 515-522. doi:10.1017/S0266467409006208

Boyle, W.A., 2009. How to keep tropical montane frugivorous birds in captivity. Ornitología Neotropical, 20, 265-273

Boyle, W.A., 2008. Partial migration in birds: an evaluation of three hypotheses in a tropical lekking frugivore. Journal of Animal Ecology, 77, 1122-1128 

Boyle, W.A., 2008. Can variation in risk of nest predation explain altitudinal migration in tropical birds? Oecologia, 154, 397-403

Boyle, W.A., §C.N. Ganong, D.B. Clark, & §M.A. Hast, 2008. Density, distribution, and attributes of tree cavities in an old-growth tropical rain forest. Biotropica, 40(2), 241-245. Supplementary Material  .

Boyle, W.A. and C.J. Conway, 2007. Why migrate? A test of the evolutionary precursor hypothesisAmerican Naturalist, 169, 344-359. Appendix A. Appendix B

Holland, J.N., J.H. Ness, W.A. Boyle, and J.L. Bronstein, 2005. Mutualisms as consumer-resource interactions. Pages 17-33 in P. Barbosa and I. Castellanos, editors. Ecology of Predator-Prey Interactions, Oxford University Press, Oxford, England

Datasets, theses & dissertations, and other products

Silber, K.M., 2023. Under the weather: mechanisms underlying avian responses to precipitation, PhD dissertation

Boyle, W.A. Kansas motus (Project500). 2022-2023. Data accessed from Motus Wildlife Tracking System, Birds Canada.  https://motus.org/

*Smith, E.B., §A.J. Roe, *K.M. Silber, *E.J. Williams, *S.K. Winnicki, and W.A. Boyle, Data and code deposited to Zenodo: Consequences of drought for grassland songbird reproduction. doi.org/10.5281/zenodo.5224970

*Smith, E.B., 2021 Direct and indirect drivers of grassland bird population declines and settlement decisions over broad spatial and temporal scales, Masters of Science thesis. 2021

*Winnicki, S.K.; W.A. Boyle, *E.J. Williams, §S.M. Munguía, 2020. Data and code deposited to Dryad supplementing the article: Social interactions do not drive territory aggregation in a grassland songbird. doi.org/10.5061/dryad.3xsj3tx9w

*Shogren, E.H., 2020. Dancing in the rain: selective drivers of variability in Neotropical manakins. PhD dissertation.

*Williams, E.J., and W.A. Boyle, 2019. Data and code deposited to Dryad supplementing the article: Causes and consequences of avian dispersal decisions in a dynamic grassland environment. doi: 10.5061/dryad.c0n5hm8

*Herse, M.R., K.A. With, and W.A. Boyle, 2018. Data and code deposited to Dryad supplementing the article: The importance of core habitat for a threatened species in changing landscapes. doi: 10.5061/dryad.9pr1476

*Shogren, E.H. and W.A. Boyle, 2018. Corapipo altera 10x genome, submitted to NCBI, accession ASM394572v1; (to be included in collaborative, comparative study based on new manakin genomes)

*Herse, M.R., M.E. Estey, P.J. Moore, B.K. Sandercock and W.A. Boyle, 2017. Data and code deposited to Zenodo supplementing the article: Landscape context drives breeding habitat selection by an enigmatic grassland songbird. doi: 10.5281/zenodo.823708

Boyle, W.A., 2016. Data deposited to the Avian Knowledge Network archive. Over 6000 banding records collected between 2002 and 2013 from multiple sites on the Caribbean slope of Costa Rica

Boyle, W.A. and K. Martin, 2015. Data deposited to Dryad supplementing the article: The conservation value of high elevation habitats to North American migrant birds. doi: 10.5061/dryad.bf486

Boyle, W.A., B.K. Sandercock, and K. Martin, 2015. Data deposited to Dryad supplementing the article: Patterns and drivers of intraspecfic variation in avian life-histories along elevational gradients: a meta-analysis. doi: 10.5061/dryad.h13vg

Boyle, W.A. and S.J. Sigel, 2015. Data deposited to Dryad supplementing the article: Ongoing changes in the avifauna of La Selva Biological Station, Costa Rica: twenty-three years of Christmas Bird Counts. doi: 10.5061/dryad.65v10

Boyle, W.A., 2014. Multi-media dataset: Video behavioral vouchers of Corapipo altera courtship displays, archived at Cornell Lab of Ornithology’s McCaulay Library, catalogue numbers 473506-473519

Boyle, W.A., 2013. Book review: Cotingas and Manakins, 2012, G. Kirwan & G. Green. Ibis, 155, 440-441

Altshuler, D.L., K.L. Cockle, and W.A. Boyle, 2013. North American ornithology in transition. Biology Letters, 9, 20120876. Meeting report from the NAOC-V (5th North American Ornithological Conference held in Vancouver, Canada, Aug 2012)

Boyle, W.A., 2006. Why do birds migrate? The role of food, habitat, predation, and competition. Ph.D. University of Arizona, Tucson, AZ

Boyle, W.A., 2003. Seed images from the Atlantic slope of Costa Rica. Online seed identification resource

Boyle, W.A. and C.J. Conway, 2003. Avian diversity at the Madrona Pools. Pages 61-72 in Madrona Pools Pulse Study: A rapid environmental assessment at the Madrona Pools, Saguaro National Park”.  Report to the U.S. Dept. of Interior, National Park Service, Tucson, AZ