Pete Marra is a senior scientist emeritus and the former director of the Smithsonian Migratory Bird Center. His research in avian conservation science has three broad themes, including the ecology of migratory birds, urban ecosystem ecology and disease ecology.

Marra's primary interests lie in understanding the factors that control population persistence and dynamics, so his research examines the roles of climate, habitat, food and pathogens, as well as other anthropogenic sources of mortality on the individual condition of both migratory and resident birds.

Marra's research emphasizes incorporating events throughout the annual cycle to understand how more complex interactions across seasons drive the ecology and evolution of species, and he uses this information to find conservation solutions. To do this, he has developed and incorporated multiple novel and emerging tracking techniques into his research.

Marra has founded several large research and communication initiatives, including Neighborhood Nestwatch, The Migratory Connectivity Project and the Animal Mortality and Monitoring Program. Communicating his science and his excitement for the conservation of wildlife to as wide an audience as possible, including the general public, is a high priority of his overall program.

Article

• Byerly, Paige A., Kearns, Anna M., Welch, Andreanna, Ochirbat, Margad-Erdene, Marra, Peter P., Wilson, Amy, Campana, Michael G., and Fleischer, Robert C. 2024. "Museum genomics provide insight into the extinction of a specialist North American warbler species." Scientific Reports, 14, (1). https://doi.org/10.1038/s41598-024-67595-5. 2024
• Cooper, Nathan W., Yanco, Scott W., Rushing, Clark S., Sillett, T. S., and Marra, Peter P. 2024. "Non-breeding conditions induce carry-over effects on survival of migratory birds." Current Biology, https://doi.org/10.1016/j.cub.2024.09.015. 2024
• Scarpignato, Amy L., Huysman, Allison E., Jimenez, Miguel F., Witko, Chad J., Harrison, Autumn-Lynn, Seavy, Nathaniel E., Smith, Melanie A., Deppe, Jill L., Wilsey, Chad B., and Marra, Peter P. 2023. "Shortfalls in tracking data available to inform North American migratory bird conservation." Biological Conservation, 286. https://doi.org/10.1016/j.biocon.2023.110224. 2023
• Dossman, Bryant C., Studds, Colin E., LaDeau, Shannon L., Sillett, T. S., and Marra, Peter P. 2023. "The role of tropical rainfall in driving range dynamics for a long-distance migratory bird." Proceedings of the National Academy of Sciences, 120, (52). https://doi.org/10.1073/pnas.2301055120. 2023
• Pharr, Lauren D., Cooper, Caren B., Evans, Brian S., Moorman, Christopher E., Voss, Margaret A., Vukomanovic, Jelena, and Marra, Peter P. 2023. "Using citizen science data to investigate annual survival rates of resident birds in relation to noise and light pollution." Urban Ecosystems, https://doi.org/10.1007/s11252-023-01403-2. 2023
• Hallworth, Michael T., Bayne, Erin, McKinnon, Emily, Love, Oliver, Tremblay, Junior A., Drolet, Bruno, Ibarzabal, Jacques, Van Wilgenburg, Steven, and Marra, Peter P. 2021. "Habitat loss on the breeding grounds is a major contributor to population declines in a long-distance migratory songbird." Proceedings of the Royal Society B: Biological Sciences 288 (1949):rspb.2020.3164,-20203164. https://doi.org/10.1098/rspb.2020.3164 2021
• Powell, Luke L., Ames, Elizabeth M., Wright, James R., Matthiopoulos, Jason, and Marra, Peter P. 2021. "Interspecific competition between resident and wintering birds: experimental evidence and consequences of coexistence." Ecology 102 (2):e03208. https://doi.org/10.1002/ecy.3208 2021
• Wright, James R., Johnson, James A., Bayne, Erin, Powell, Luke L., Foss, Carol R., Kennedy, Jeremiah C., and Marra, Peter P. 2021. "Migratory connectivity and annual cycle phenology of Rusty Blackbirds (Euphagus carolinus) revealed through archival GPS tags." Avian Conservation and Ecology, 16, (1), Wolfville, Canada: Resilience Alliance. https://doi.org/10.5751/ACE-01871-160120. 2021
• Hagelin, Julie C., Hallworth, Michael T., Barger, Christopher P., Johnson, James A., DuBour, Kristin A., Pendelton, Grey W., DeCicco, Lucas H., McDuffie, Laura A., Matsuoka, Steven M., Snively, Marian A., Marra, Peter P., and Taylor, Audrey. 2021. "Revealing migratory path, important stopovers and non-breeding areas of a boreal songbird in steep decline." Animal Migration, 8, (1) 168–191. https://doi.org/10.1515/ami-2020-0116. 2021
• Studds, Colin E., Wunderle, Joseph M., Jr., and Marra, Peter P. 2021. "Strong differences in migratory connectivity patterns among species of Neotropical-Nearctic migratory birds revealed by combining stable isotopes and abundance in a Bayesian assignment analysis." Journal of Biogeography 48 (7):1746-1757. https://doi.org/10.1111/jbi.14111 2021
• Rosenberg, Kenneth V., Dokter, Adriaan M., Blancher, Peter J., Sauer, John R., Smith, Adam C., Smith, Paul A., Stanton, Jessica C., Panjabi, Arvind, Helft, Laura, Parr, Michael, and Marra, Peter P. 2019. "Decline of the North American avifauna." Science 366 (6461):120-124. https://doi.org/10.1126/science.aaw1313 2019
• Akresh, Michael E., King, David I., and Marra, Peter P. 2019. "Examining carry-over effects of winter habitat on breeding phenology and reproductive success in prairie warblers (Setophaga discolor)." Journal of Avian Biology 50 (4):https://doi.org/10.1111/jav.02025 2019
• Hajdasz, Adrianne, McKellar, Ann E., Ratcliffe, Laurene M., Boag, Peter T., Marra, Peter P., and Reudink, Matthew W. 2019. "Extra-pair offspring are less heterozygous than within-pair offspring in American redstarts (Setophaga ruticilla)." Journal of Avian Biology 1-12. https://doi.org/10.1111/jav.02084 2019
• Humphries, Meghann B., Barbosa De Oliveira Pil,Maria W., Latta, Steven C., Marra, Peter P., and Ricklefs, Robert E. 2019. "Historical demography of Coereba flaveola on Puerto Rico." Auk, 136, (2). https://doi.org/10.1093/auk/uky017. 2019
• Akresh, Michael E., King, David I., and Marra, Peter P. 2019. "Rainfall and habitat interact to affect the condition of a wintering migratory songbird in The Bahamas." Ecology and Evolution 9 (14):8042-8061. https://doi.org/10.1002/ece3.5359 2019
• Marra, Peter P. 2019. "The ecological cost of pets." Current Biology 29 (19):R955-R956. https://doi.org/10.1016/j.cub.2019.06.067 2019
• Davis, Herlitz, Rice, Robert A., Rockwood, Larry, Wood, Thomas, and Marra, Peter P. 2019. "The economic potential of fruit trees as shade in blue mountain coffee agroecosystems of the Yallahs River watershed, Jamaica W.I.." Agroforestry Systems 93 (2):581-589. https://doi.org/10.1007/s10457-017-0152-z 2019
• Reese, Jessie, Viverette, Catherine, Tonra, Christopher M., Bayly, Nicholas J., Boves, Than J., Johnson, Erik, Johnson, Matthew, Marra, Peter, Ames, Elizabeth M., Caguazango, Angela, DeSaix, Matthew, Matthews, Alix, Molina, Alessandro, Percy, Katie, Slevin, Morgan C., and Bulluck, Lesley. 2019. "Using stable isotopes to estimate migratory connectivity for a patchily distributed, wetland-associated Neotropical migrant." Condor, 121, (4). https://doi.org/10.1093/condor/duz052. 2019
• Schmitt, Christopher J., Echols, Kathy R., Peterman, Paul H., Orazio, Carl E., Grim, K. Christiana, Tan, Shirlee, Diggs, Nora E., and Marra, Peter P. 2018. "Correction to: Organochlorine Chemical Residues in Northern Cardinal (Cardinalis cardinalis) Eggs from Greater Washington, DC USA." Bulletin of environmental contamination and toxicology 1-1. https://doi.org/10.1007/s00128-018-2383-8 2018
• Loss, Scott R., Will, Tom, Longcore, Travis, and Marra, Peter P. 2018. "Correction to: Responding to misinformation and criticisms regarding United States cat predation estimates." Biological Invasions 20 (12):3397. https://doi.org/10.1007/s10530-018-1805-1 2018
• Vernasco, Ben J., Sillett, T. Scott, Marra, Peter P., and Ryder, T. Brandt. 2018. "Environmental predictors of nestling condition, postfledging movement, and postfledging survival in a migratory songbird, the Wood Thrush (Hylocichla mustelina)." The Auk, 135, (1) 15–24. https://doi.org/10.1642/AUK-17-105.1. 2018
• Lisovski, Simeon, Schmaljohann, Heiko, Bridge, Eli S., Bauer, Silke, Farnsworth, Andrew, Gauthreaux, Sidney A., Jr., Hahn, Steffen, Hallworth, Michael T., Hewson, Chris M., Kelly, Jeffrey F., Liechti, Felix, Marra, Peter P., Rakhimberdiev, Eldar, Ross, Jeremy D., Seavy, Nathaniel E., Sumner, Michael D., Taylor, Caz M., Winkler, David W., Wotherspoon, Simon J., and Wunder, Michael B. 2018. "Inherent limits of light-level geolocation may lead to over-interpretation." Current Biology 28 (3):R99-R100. https://doi.org/10.1016/j.cub.2017.11.072 2018
• Loss, Scott R. and Marra, Peter P. 2018. "Merchants of doubt in the free-ranging cat conflict." Conservation Biology: The Journal of the Society for Conservation Biology 32 (2):265-266. https://doi.org/10.1111/cobi.13085 2018
• Narango, Desirée L., Tallamy, Douglas W., and Marra, Peter P. 2018. "Nonnative plants reduce population growth of an insectivorous bird." Proceedings of the National Academy of Sciences of the United States of America 115 (45):11549-11554. https://doi.org/10.1073/pnas.1809259115 2018
• Schmitt, Christopher J., Echols, Kathy R., Peterman, Paul H., Orazio, Carl E., Grim, K. Christiana, Tan, Shirlee, Diggs, Nora E., and Marra, Peter P. 2018. "Organochlorine Chemical Residues in Northern Cardinal (Cardinalis cardinalis) Eggs from Greater Washington, DC USA." Bulletin of environmental contamination and toxicology 100 (6):741-747. https://doi.org/10.1007/s00128-018-2357-x 2018
• Responding to misinformation and criticisms regarding United States cat predation estimates.  Biological Invasions.  1-12. 2018
• Loss, Scott R., Will, Tom, Longcore, Travis, and Marra, Peter P. 2018. "Responding to misinformation and criticisms regarding United States cat predation estimates." Biological Invasions 20 (12):3385-3396. https://doi.org/10.1007/s10530-018-1796-y 2018
• Responding to misinformation and criticisms regarding United States cat predation estimates (vol 20, pg 3385, 2018).  Biological Invasions.  20:3397-3397. 2018
• Hallworth, Michael T., Marra, Peter P., McFarland, Kent P., Zahendra, Sara, and Studds, Colin E. 2018. "Tracking dragons: stable isotopes reveal the annual cycle of a long-distance migratory insect." Biology Letters 14 (12):https://doi.org/10.1098/rsbl.2018.0741 2018
• Reese, Jessica A., Tonra, Christopher, Viverette, Catherine, Marra, Peter P., and Bulluck, Lesley P. 2018. "Variation in Stable Hydrogen Isotope Values in a Wetland-associated Songbird." Waterbirds 41 (3):247-256. https://doi.org/10.1675/063.041.0304 2018
• Ricklefs, Robert E., Medeiros, Matthew, Ellis, Vincenzo A., Svensson-Coelho, Maria, Blake, John G., Loiselle, Bette A., Soares, Leticia, Fecchio, Alan, Outlaw, Diana, Marra, Peter P., Latta, Steven C., Valkiūnas, Gediminas, Hellgren, Olof, and Bensch, Staffan. 2017. "Avian migration and the distribution of malaria parasites in New World passerine birds." Journal of Biogeography 44 (5):1113-1123. https://doi.org/10.1111/jbi.12928 2017
• Sparrow, Kaitlin L., Donkor, Kingsley K., Flood, Nancy J., Marra, Peter P., Pillar, Andrew G., and Reudink, Matthew W. 2017. "Conditions on the Mexican moulting grounds influence feather colour and carotenoids in Bullock's orioles (Icterus bullockii)." Ecology and Evolution 7 (8):2643-2651. https://doi.org/10.1002/ece3.2836 2017
• Wilson, Scott, McKellar, Ann E., Reudink, Matthew W., Marra, Peter P., and Ratcliffe, Laurene M. 2017. "Density-dependent immigration promotes population stability in a long-distance migratory bird." Population Ecology 59 (2):169-178. https://doi.org/10.1007/s10144-017-0582-5 2017
• Kennedy, Christina M., Zipkin, Elise F., and Marra, Peter P. 2017. "Differential matrix use by Neotropical birds based on species traits and landscape condition." Ecological Applications 27 (2):619-631. https://doi.org/10.1002/eap.1470 2017
• Rushing, Clark S., Marra, Peter P., and Studds, Colin E. 2017. "Incorporating breeding abundance into spatial assignments on continuous surfaces." Ecology and Evolution 7 (11):3847-3855. https://doi.org/10.1002/ece3.2605 2017
• Narango, Desiree L., Tallamy, Douglas W., and Marra, Peter P. 2017. "Native plants improve breeding and foraging habitat for an insectivorous bird." Biological Conservation 213 (Part A):42-50. https://doi.org/10.1016/j.biocon.2017.06.029 2017
• Soares, Letícia, Marra, Peter P., Gray, Lindsey, and Ricklefs, Robert E. 2017. "The malaria parasite Plasmodium relictum in the endemic avifauna of eastern Cuba." Conservation Biology: The Journal of the Society for Conservation Biology 31 (6):1477-1482. https://doi.org/10.1111/cobi.12995 2017
• Tonra, Christopher M., Sager-Fradkin, Kimberly, and Marra, Peter P. 2016. "Barriers to salmon migration impact body condition, offspring size, and life history variation in an avian consumer." Ecography 39 (11):1056-1065. https://doi.org/10.1111/ecog.02014 2016
• Rushing, Clark S., Marra, Peter P., and Dudash, Michele R. 2016. "Winter habitat quality but not long-distance dispersal influences apparent reproductive success in a migratory bird." Ecology 97 (5):1218-1227. https://doi.org/10.1890/15-1259.1 2016
• Marini, Kristen L. D., McKellar, Ann E., Ratcliffe, Laurene M., Marra, Peter P., and Reudink, Matthew W. 2015. "Age-related change in carotenoid-based plumage of the American Redstart (Setophaga ruticilla)." Journal of Ornithology 156 (3):783-793. https://doi.org/10.1007/s10336-015-1168-7 2015
• Rushing, Clark S., Dudash, Michele R., Studds, Colin E., and Marra, Peter P. 2015. "Annual variation in long-distance dispersal driven by breeding and non-breeding season climatic conditions in a migratory bird." Ecography 38 (10):1006-1014. https://doi.org/10.1111/ecog.01196 2015
• Angelier, Frédéric, Vleck, Carol M., Holberton, Rebecca L., and Marra, Peter P. 2015. "Bill size correlates with telomere length in male American Redstarts." Journal of Ornithology 156 (2):525-531. https://doi.org/10.1007/s10336-015-1158-9 2015
• Hegemann, Arne, Marra, Peter P., and Tieleman, B. Irene. 2015. "Causes and Consequences of Partial Migration in a Passerine Bird." American Naturalist, 186, (4) 531–546. https://doi.org/10.1086/682667. 2015
• McKellar, Ann E., Reudink, Matthew W., Marra, Peter P., Ratcliffe, Laurene M., and Wilson, Scott. 2015. "Climate and density influence annual survival and movement in a migratory songbird." Ecology and Evolution 5 (24):5892-5904. https://doi.org/10.1002/ece3.1854 2015
• Loss, Scott R., Will, Tom, and Marra, Peter P. 2015. "Direct Mortality of Birds from Anthropogenic Causes." Annual Review of Ecology, Evolution, and Systematics 46 (1):99-120. https://doi.org/10.1146/annurev-ecolsys-112414-054133 2015
• Bisson, Isabelle-Anne, Ssebide, Benard J., and Marra, Peter P. 2015. "Early Detection of Emerging Zoonotic Diseases with Animal Morbidity and Mortality Monitoring." EcoHealth 12 (1):98-103. https://doi.org/10.1007/s10393-014-0988-x 2015
• Powell, Luke L., Dobbs, Robert C., and Marra, Peter P. 2015. "Habitat and body condition influence American Redstart foraging behavior during the non-breeding season." Journal of Field Ornithology 86 (3):229-237. https://doi.org/10.1111/jofo.12106 2015
• Rushing, Clark S., Dudash, Michele R., and Marra, Peter P. 2015. "Habitat features and long-distance dispersal modify the use of social information by a long-distance migratory bird." Journal of Animal Ecology 84 (6):1469-1479. https://doi.org/10.1111/1365-2656.12395 2015
• Tonra, Christopher M., Both, Christiaan, and Marra, Peter P. 2015. "Incorporating site and year-specific deuterium ratios (δ2H) from precipitation into geographic assignments of a migratory bird." Journal of Avian Biology 46 (3):266-274. https://doi.org/10.1111/jav.00553 2015
• Loss, Scott R., Loss, Sara S., Will, Tom, and Marra, Peter P. 2015. "Linking place-based citizen science with large-scale conservation research: A case study of bird-building collisions and the role of professional scientists." Biological Conservation 184:439-445. https://doi.org/10.1016/j.biocon.2015.02.023 2015
• Hallworth, Michael T. and Marra, Peter P. 2015. "Miniaturized GPS Tags Identify Non-breeding Territories of a Small Breeding Migratory Songbird." Scientific Reports 5 (11069):https://doi.org/10.1038/srep11069 2015
• Pouyat, R. V., Szlavecz, K., Yesilonis, I. D., Wong, C. P., Murawski, L., Marra, Peter P., Casey, R. E., and Lev, S. 2015. "Multi-scale assessment of metal contamination in residential soil and soil fauna: A case study in the Baltimore–Washington metropolitan region, USA." Landscape and Urban Planning 142:7-17. https://doi.org/10.1016/j.landurbplan.2015.05.001 2015
• Reudink, Matthew W., Van Wilgenburg, Steven L., Steele, Lauren S., Pillar, Andrew G., Marra, Peter P., and McKellar, Ann E. 2015. "Patterns of migratory connectivity in Vaux's Swifts at a northern migratory roost: A multi-isotope approach." The Condor 117 (4):670-682. https://doi.org/10.1650/CONDOR-15-82.1 2015
• Tonra, Christopher M., Sager-Fradkin, Kimberly, Morley, Sarah A., Duda, Jeffrey J., and Marra, Peter P. 2015. "The rapid return of marine-derived nutrients to a freshwater food web following dam removal." Biological Conservation 192:130-134. https://doi.org/10.1016/j.biocon.2015.09.009 2015
• DeLuca, William V., Woodworth, Bradley K., Rimmer, Christopher C., Marra, Peter P., Taylor, Philip D., McFarland, Kent P., Mackenzie, Stuart A., and Norris, D. R. 2015. "Transoceanic migration by a 12 g songbird." Biology Letters 11 (4):https://doi.org/10.1098/rsbl.2014.1045 2015
• Janousek, William M., Marra, Peter P., and Kilpatrick, A. Marm. 2014. "Avian roosting behavior influences vector-host interactions for West Nile virus hosts." Parasites & Vectors 7:399-399. https://doi.org/10.1186/1756-3305-7-399 2014
• Loss, Scott R., Will, Tom, Loss, Sara S., and Marra, Peter P. 2014. "Bird–building collisions in the United States: Estimates of annual mortality and species vulnerability." The Condor 8-23. https://doi.org/10.1650/CONDOR-13-090.1 2014
• Tonra, Christopher M., Marini, Kristen L. D., Marra, Peter P., Germain, Ryan R., Holberton, Rebecca L., and Reudink, Matthew W. 2014. "Color expression in experimentally regrown feathers of an overwintering migratory bird: implications for signaling and seasonal interactions." Ecology and Evolution 4 (8):1222-1232. https://doi.org/10.1002/ece3.994 2014
• McKellar, Ann E., Marra, Peter P., Boag, Peter T., and Ratcliffe, Laurene M. 2014. "Form, function and consequences of density dependence in a long-distance migratory bird." Oikos 123 (3):356-364. https://doi.org/10.1111/j.1600-0706.2013.00756.x 2014
• Reudink, Matthew W., McKellar, Ann E., Marini, Kristen L. D., McArthur, Sarah L., Marra, Peter P., and Ratcliffe, Laurene M. 2014. "Inter-annual variation in American redstart (Setophaga ruticilla) plumage colour is associated with rainfall and temperature during moult: an 11-year study." Oecologia 1-13. https://doi.org/10.1007/s00442-014-3167-4 2014
• Loss, Scott R., Will, Tom, and Marra, Peter P. 2014. "Refining Estimates of Bird Collision and Electrocution Mortality at Power Lines in the United States." PLoS ONE 9 (7):https://doi.org/10.1371/journal.pone.0101565 2014
• Koenig, Walter D. and Marra, Peter P. 2014. "Russell S. Greenberg, 1953–2013." The Auk 131 (2):255-256. https://doi.org/10.1642/AUK-13-241.1 2014
• Loss, Scott R., Will, Tom, and Marra, Peter P. 2013. "Estimates of bird collision mortality at wind facilities in the contiguous United States." Biological Conservation 168:201-209. https://doi.org/10.1016/j.biocon.2013.10.007 2013
• Mckinnon, Emily A., Stanley, Calandra Q., Fraser, Kevin C., MacPherson, Maggie M., Casbourn, Garth, Marra, Peter P., Studds, Colin E., Diggs, Nora, and Stutchbury, Bridget J. M. 2013. "Estimating geolocator accuracy for a migratory songbird using live ground-truthing in tropical forest." Animal Migration 2:1-8. https://doi.org/10.2478/ami-2013-0001 2013
• Tonra, Christopher M., Marra, Peter P., and Holberton, Rebecca L. 2013. "Experimental and observational studies of seasonal interactions between overlapping life history stages in a migratory bird." Hormones and behavior 64 (5):825-835. https://doi.org/10.1016/j.yhbeh.2013.10.004 2013
• Renfrew, Rosalind B., Kim, Daniel, Perlut, Noah, Smith, Joseph, Fox, James, and Marra, Peter P. 2013. "Phenological matching across hemispheres in a long-distance migratory bird." Diversity & Distributions 19 (8):1008-1019. https://doi.org/10.1111/ddi.12080 2013
• Kilpatrick, A. M., Peters, Ryan J., Dupuis, Alan P., II, Jones, Matthew J., Daszak, Peter, Marra, Peter P., and Kramer, Laura D. 2013. "Predicted and observed mortality from vector-borne disease in wildlife: West Nile virus and small songbirds." Biological Conservation 165:79-85. https://doi.org/10.1016/j.biocon.2013.05.015 2013
• Osmond, Matthew Miles, Reudink, Matthew W., Germain, Ryan R., Marra, Peter P., Nocera, Joseph J., Boag, Peter T., and Ratcliffe, Laurene M. 2013. "Relationships between carotenoid-based female plumage and age, reproduction and mate colour in the American Redstart (Setophaga ruticilla)." Canadian journal of zoology 91 (8):589-595. https://doi.org/10.1139/cjz-2013-0017 2013
• McKellar, Ann E., Marra, Peter P., and Ratcliffe, Laurene M. 2013. "Starting over: experimental effects of breeding delay on reproductive success in early-arriving male American redstarts." Journal of Avian Biology 44 (5):495-503. https://doi.org/10.1111/j.1600-048X.2013.00180.x 2013
• Angelier, Frédéric, Vleck, Carol M., Holberton, Rebecca L., and Marra, Peter P. 2013. "Telomere length, non-breeding habitat and return rate in male American redstarts." Functional Ecology 27 (2):342-350. https://doi.org/10.1111/1365-2435.12041 2013
• Loss, Scott R., Will, Tom, and Marra, Peter P. 2013. "The impact of free-ranging domestic cats on wildlife of the United States." Nature Communications 4 (1396):https://doi.org/10.1038/ncomms2380 2013
• McKellar, Ann E., Marra, Peter P., Hannon, Susan J., Studds, Colin E., and Ratcliffe, Laurene M. 2013. "Winter rainfall predicts phenology in widely separated populations of a migrant songbird." Oecologia 172 (2):595-605. https://doi.org/10.1007/s00442-012-2520-8 2013
• Rockwell, Sarah M., Bocetti, Carol I., and Marra, Peter P. 2012. "Carry-over effects of winter climate on spring arrival date and reproductive success in an endangered migratory bird, Kirtland's Warbler (Setophaga kirtlandii) (Efectos Diferidos del Clima Invernal en la Fecha de Llegada en Primavera y en el Éxito Reproductivo de Setophaga kirtlandii, un Ave Migratoria Amenazada)." The Auk 129 (4):744-752. https://doi.org/10.1525/auk.2012.12003 2012
• Loss, Scott R., Will, Tom, and Marra, Peter P. 2012. "Direct human-caused mortality of birds: improving quantification of magnitude and assessment of population impact." Frontiers in Ecology and the Environment 10 (7):357-364. https://doi.org/10.1890/110251 2012
• Jones, Christy E., Lounibos, L. Philip, Marra, Peter P., and Kilpatrick, A. Marm. 2012. "Rainfall Influences Survival of Culex pipiens (Diptera: Culicidae) in a Residential Neighborhood in the Mid-Atlantic United States." Journal of medical entomology 49 (3):467-473. https://doi.org/10.1603/ME11191 2012
• Studds, Colin E., McFarland, Kent P., Aubry, Yves, Rimmer, Christopher C., Hobson, Keith A., Marra, Peter P., and Wassenaar, Leonard I. 2012. "Stable-hydrogen isotope measures of natal dispersal reflect observed population declines in a threatened migratory songbird." Diversity & Distributions 18 (9):919-930. https://doi.org/10.1111/j.1472-4642.2012.00931.x 2012
• Sepulveda, Adam J., Lowe, Winsor H., and Marra, Peter P. 2012. "Using stable isotopes to test for trophic niche partitioning: a case study with stream salamanders and fish." Freshwater Biology 57:1299-1409. https://doi.org/10.1111/j.1365-2427.2012.02800.x 2012
• Knudsen, Endre, Lindén, Andreas, Both, Christiaan, Jonzén, Niclas, Pulido, Francisco, Saino, Nicola, Sutherland, William J., Bach, Lars A., Coppack, Timothy, Ergon, Torbjørn, Gienapp, Phillip, Gill, Jennifer A., Gordo, Oscar, Hedenström, Anders, Lehikoinen, Esa, Marra, Peter P., Møller, Anders P., Nilsson, Anna L. K., Péron, Guillaume, Ranta, Esa, Rubolini, Diego, Sparks, Tim H., Spina, Fernando, Studds, Colin E., Sæther, Stein A. et al. 2011. "Challenging claims in the study of migratory birds and climate change." Biological Reviews 86 (4):928-946. https://doi.org/10.1111/j.1469-185X.2011.00179.x 2011
• Dowling, J. L., Luther, D. A., and Marra, Peter P. 2011. "Comparative effects of urban development and anthropogenic noise on bird songs." Behavioral Ecology 23 (1):201-209. https://doi.org/10.1093/beheco/arr176 2011
• Germain, Ryan R., Reudink, Matthew W., Marra, Peter P., Boag, Peter T., and Ratcliffe, Laurene M. 2011. "Delayed maturation of multiple signals in a migratory songbird." Behavioral Ecology and Sociobiology 66 (3):419-431. https://doi.org/10.1007/s00265-011-1288-x 2011
• Tonra, Christopher M., Marra, Peter P., and Holberton, Rebecca L. 2011. "Early elevation of testosterone advances migratory preparation in a songbird." Journal of Experimental Biology 214 (16):2761-2767. https://doi.org/10.1242/jeb.054734 2011
• Smith, Joseph A. M., Reitsma, Leonard R., and Marra, Peter P. 2011. "Influence of Moisture and Food Supply on the Movement Dynamics of a Nonbreeding Migratory Bird (Parkesia Noveboracensis) in a Seasonal Landscape." The Auk 128 (1):43-52. https://doi.org/10.1525/auk.2011.10240 2011
• Kennedy, Christina M., Grant, Evan H. Campbell, Neel, Maile C., Fagan, William F., and Marra, Peter P. 2011. "Landscape matrix mediates occupancy dynamics of Neotropical avian insectivores." Ecological Applications 21 (5):1837-1850. https://doi.org/10.1890/10-1044.1 2011
• Tonra, Christopher M., Marra, Peter P., and Holberton, Rebecca L. 2011. "Migration phenology and winter habitat quality are related to circulating androgen in a long‐distance migratory bird." Journal of Avian Biology 42 (5):397-404. https://doi.org/10.1111/j.1600-048X.2011.05333.x 2011
• Smith, Joseph A. M., Reitsma, Leonard R., and Marra, Peter P. 2011. "Multiple Space-use Strategies and their Divergent Consequences in a Nonbreeding Migratory Bird (Parkesia Noveboracensis)." The Auk 128 (1):53-60. https://doi.org/10.1525/auk.2011.10241 2011
• Studds, Colin E. and Marra, Peter P. 2011. "Rainfall-induced changes in food availability modify the spring departure programme of a migratory bird." Proceedings of the Royal Society B: Biological Sciences 278 (1723):3437-3443. https://doi.org/10.1098/rspb.2011.0332 2011
• Studds, Colin E. and Marra, Peter P. 2011. "Reconsidering the role of precipitation and food availability in relation to the effect of photoperiod on spring departure of a migratory bird." Proceedings of the Royal Society B: Biological Sciences 279 (1726):17-18. https://doi.org/10.1098/rspb.2011.2024 2011
• Diggs, Nora E., Marra, Peter P., and Cooper, Robert J. 2011. "Resource Limitation Drives Patterns of Habitat Occupancy during the Nonbreeding Season for an Omnivorous Songbird (La Limitación de Recursos Condiciona los Patrones de Ocupación de Hábitat durante la Estación No Reproductiva de un Ave Canora Omnívora)." The Condor 113 (3):646-654. https://doi.org/10.1525/cond.2011.090201 2011
• Angelier, Frédéric, Tonra, Christopher M., Holberton, Rebecca L., and Marra, Peter P. 2011. "Short‐term changes in body condition in relation to habitat and rainfall abundance in American redstarts Setophaga ruticilla during the non‐breeding season." Journal of Avian Biology 42 (4):335-341. https://doi.org/10.1111/j.1600-048X.2011.05369.x 2011
• LaDeau, Shanon L., Calder, Catherine A., Doran, Patrick J., and Marra, Peter P. 2011. "West Nile virus impacts in American crow populations are associated with human land use and climate." Ecological Research 26:909-916. https://doi.org/10.1007/s11284-010-0725-z 2011
• Angelier, Frédéric, Ballentine, B., Holberton, R. L., Marra, Peter P., and Greenberg, Russell S. 2011. "What drives variation in the corticosterone stress response between subspecies? A common garden experiment of Swamp sparrows (Melospiza georgiana)." Journal of Evolutionary Biology 24 (4):1-10. https://doi.org/10.1111/j.1420-9101.2011.02260.x 2011
• Germain, Ryan, Marra, Peter P., Kyser, T. Kurt, and Ratcliffe, Laurene. 2010. "Adult-Like Plumage Coloration Predicts Winter Territory Quality and Timing of Arrival on the Breeding Grounds of Yearling Male American Redstarts." The Condor 112 (4):676-682. https://doi.org/10.1525/cond.2010.090193 2010
• Bowlin, Melissa S., Bisson, Isabelle-Anne, Shamoun-Baranes, Judy, Reichard, Jonathan D., Sapir, Nir, Marra, Peter P., Kunz, Thomas H., Wilcove, David S., Hedenstrom, Anders, Guglielmo, Christopher G., Akesson, Susanne, Ramenofsky, Marilyn, and Wikelski, Martin C. 2010. "Grand Challenges in Migration Biology." Integrative and Comparative Biology 50 (3):261-279. https://doi.org/10.1093/icb/icq013 2010
• Angelier, Frédéric, Tonra, Christopher M., Holberton, Rebecca L., and Marra, Peter P. 2010. "How to capture wild passerine species to study baseline corticosterone levels." Journal of Ornithology 151 (2):415-422. https://doi.org/10.1007/s10336-009-0471-6 2010
• Kennedy, Christina M., Marra, Peter P., Fagan, William F., and Neel, Maile C. 2010. "Landscape matrix and species traits mediate responses of Neotropical resident birds to forest fragmentation in Jamaica." Ecological Monographs 80 (4):651-669. https://doi.org/10.1890/09-0904.1 2010
• Kennedy, Christina M. and Marra, Peter P. 2010. "Matrix mediates avian movements in tropical forested landscapes: inference from experimental translocations." Biological Conservation 143 (9):2136-2145. https://doi.org/10.1016/j.biocon.2010.05.025 2010
• Smith, Joseph A. M., Reitsma, Leonard R., and Marra, Peter P. 2010. "Moisture as a determinant of habitat quality for a nonbreeding Neotropical migratory songbird." Ecology 91 (10):2874-2882. https://doi.org/10.1890/09-2212.1 2010
• Lepczyk, C. A., Dauphiné, N., Bird, D. M., Conant, S., Cooper, R. J., Duffy, D. C., Hatley, P. J., Marra, Peter P., Stone, E., and Temple, S. A. 2010. "What Conservation Biologists Can Do to Counter Trap-Neuter-Return: Response to Longcore, et al." Conservation Biology 24 (2):627-629. https://doi.org/10.1111/j.1523-1739.2009.01426.x 2010
• Langin, K. M., Marra, Peter P., Nemeth, Z., Moore, F. R., Kyser, T. K., and Ratcliffe, L. M. 2009. "Breeding latitude and timing of spring migration in songbirds crossing the Gulf of Mexico." Journal of Avian Biology 40 (3):309-316. https://doi.org/10.1111/j.1600-048X.2008.04496.x 2009
• Salgado-Ortiz, Javier, Marra, Peter P., and Robertson, Raleigh J. 2009. "Breeding seasonality of the mangrove warbler (Dendroica petechia bryanti) from southern Mexico." Ornitologia Neotropical 20:255-263. 2009
• Angelier, Frédéric, Holberton, R. L., and Marra, Peter P. 2009. "Does Stress Response Predict Return Rate in a Migratory Bird Species? A Study of American Redstarts and their Non-Breeding Habitat." Proceedings of the Royal Society B: Biological Sciences 276 (1672):3545-3551. https://doi.org/10.1098/rspb.2009.0868 2009
• Wunder, Michael B., Hobson, Keith A., Kelly, Jeff, Marra, Peter P., Wassenaar, Leonard I., Stricker, Craig A., and Doucett, Richard R. 2009. "Does a lack of design and repeatability compromise scientific criticism? A response to Smith et al.." The Auk 126 (4):922-926. https://doi.org/10.1525/auk.2009.126.4.2 2009
• Almario, Barbara S., Marra, Peter P., Gates, J. Edward, and Mitchell, Laura. 2009. "Effects of Prescribed Fire on Depredation Rates of Natural and Artificial Seaside Sparrow Nests." Wilson Journal of Ornithology 121 (4):770-777. https://doi.org/10.1676/07-095.1 2009
• Reudink, M. W., Marra, Peter P., Kyser, T. K., Boag, P., Langin, K., and Ratcliffe, L. 2009. "Non-breeding season events influence sexual selection in a long-distance migratory bird." Proceedings of the Royal Society B: Biological Sciences 276 (1662):1619-1626. https://doi.org/10.1098/rspb.2008.1452 2009
• Reudink, M. W., Studds, Colin E., Kyser, T. K., Marra, Peter P., and Ratcliffe, L. M. 2009. "Plumage brightness predicts non-breeding season territory quality in a long-distance migratory songbird." Journal of Avian Biology 40:34-41. 2009
• Reudink, M. W., Marra, Peter P., Boag, P. T., and Ratcliffe, L. M. 2009. "Plumage colouration predicts paternity and polygyny in the American redstart." Animal Behaviour 77:495-501. 2009
• Bisson, Isabelle-Anne, Marra, Peter P., Burtt Jr, Edward, Sikaroodi, Masoumeh, and Gillevet, Patrick. 2009. "Variation in plumage microbiota depends on season and migration." Microbial ecology 58:212-220. 2009
• Davis, A. K., Diggs, N. E., Cooper, R. J., and Marra, Peter P. 2008. "Hematological Stress Indices Reveal no Effect of Radio-Transmitters on Wintering Hermit Thrushes." Journal of Field Ornithology 79 (3):293-297. https://doi.org/10.1111/j.1557-9263.2008.00176.x 2008
• Gomez, A., Kilpatrick, A. M., Kramer, L. D., Dupuis, A. P., II, Maffei, J. G., Goetz, S. J., Marra, Peter P., Daszak, P., and Aguirre, Alonso A. 2008. "Land use and West Nile virus seroprevalence in wild mammals." Emerging Infectious Diseases 14:962-965. 2008
• Reudink, M. W., Marra, Peter P., Langin, K. M., Studds, Colin E., Kyser, T. K., and Ratcliffe, L. M. 2008. "Molt-migration in the American Redstart (Setophaga ruticilla) revisited: Explaining variation in feather delta D signatures." The Auk 125 (3):742-746. https://doi.org/10.1525/auk.2008.2708.1 2008
• Studds, Colin E., Kyser, T. K., and Marra, Peter P. 2008. "Natal dispersal drive by environmental conditions interacting across the annual cycle of a migratory songbird." Proceedings of the National Academy of Sciences of the United States of America 105:2929-2933. 2008
• Colbeck, Gabriel J., Gibbs, H. Lisle, Marra, Peter P., Hobson, Keith, and Webster, Michael S. 2008. "Phylogeography of a Widespread North American Migratory Songbird (Setophaga ruticilla)." The Journal of Heredity 99 (5):453-463. https://doi.org/10.1093/jhered/esn025 2008
• Newhouse, M., Marra, Peter P., and Johnson, L. S. 2008. "Reproductive Success of House Wrens in Suburban and Rural Landscapes." Wilson Journal of Ornithology 120 (1):99-104. https://doi.org/10.1676/06-156.1 2008
• Smith, Joseph A. M., Reitsma, Leonard R., Rockwood, L. L., and Marra, Peter P. 2008. "Roosting behavior of a Neotropical migrant songbird, the northern waterthrush Seiurus noveboracensis, during the non-breeding season." Journal of Avian Biology 39 (4):460-465. 2008
• LaDeau, S. L., Kilpatrick, A. M., Calder, K., and Marra, Peter P. 2008. "West Nile virus revisited: Consequences for North American ecology." Bioscience 58:937-946. 2008
• Norris, D. Ryan, Marra, Peter P., Kyser, T. Kurt, Ratcliffe, Laurene M., and Montgomerie, Robert. 2007. "Continent-wide variation in feather colour of a migratory songbird in relation to body condition and moulting locality." Biology Letters 3 (1):16-19. https://doi.org/10.1098/rsbl.2006.0572 2007
• Kilpatrick, A. M., LaDeau, Shannon L., and Marra, Peter P. 2007. "Ecology of West Nile virus transmission and its impact on birds in the Western Hemisphere." The Auk 124 (4):1121-1136. https://doi.org/10.1093/auk/124.4.1121 2007
• Kilpatrick, A. M., Kramer, L. D., Jones, M. J., Marra, Peter P., Daszak, P., and Fonseca, Dina M. 2007. "Genetic influences on mosquito feeding behavior and the emergence of zoonotic pathogens." American Journal of Tropical Medicine and Hygiene 77 (4):667-671. 2007
• Langin, K. M., Reudink, M. W., Marra, Peter P., Norris, D. Ryan, Kyser, T. Kurt, and Ratcliffe, Laurene M. 2007. "Hydrogen isotopic variation in migratory bird tissues of known origin: implications for geographic assignment." Oecologia 152 (3):449-457. https://doi.org/10.1007/s00442-007-0669-3 2007
• LaDeau, S., Kilpatrick, A. M., and Marra, Peter P. 2007. "Large-scale impacts of an invasive disease on bird populations." Nature 447:710-713. 2007
• Studds, Colin E. and Marra, Peter P. 2007. "Linking fluctuations in rainfall to nonbreeding season performance in a long-distance migratory bird, Setophaga ruticilla." Climate Research 35:115-122. 2007
• Bisson, Isabelle-Anne, Marra, Peter P., Burtt, Edward H.,Jr., Sikaroodi, Masourneh, and Gillevet, Patrick M. 2007. "Molecular comparison of plumage and soil bacteria across biogeographic, ecological, and taxonomic scales." Microbial ecology 54:65-81. 2007
• Griffing, S. M., Kilpatrick, A. M., Clark, L., and Marra, Peter P. 2007. "Mosquito landing rates on nesting American robins (Turdus migratorius)." Vector-Borne and Zoonotic Diseases 7:437-443. 2007
• Gomez, A., Kilpatrick, A. M., Kramer, L. D., Dupuis, A. P., Jones, M. J., Goetz, S. J., Marra, Peter P., Daszak, P., and Aguirre, Alonso A. 2007. "Multiple factors influence West Nile virus seroprevalence in wild mammals." American Journal of Tropical Medicine and Hygiene 77 (5):134-144. 2007
• Martin, T. G., Chades, I., Arcese, P., Marra, Peter P., Possingham, H. P., and Norris, D. R. 2007. "Optimal Conservation of Migratory Species." PLos One 2:751-755. 2007
• Norris, D. R. and Marra, Peter P. 2007. "Seasonal interactions, habitat quality, and population dynamics in migratory birds." The Condor 109:535-547. 2007
• Greenberg, Russell S., Marra, Peter P., and Wooler, M. 2007. "Stable isotope (C, N, H) analyses locate the unknown winter range of the coastal plain swamp sparrow (Melospiza georgiana nigrescens)." The Auk 124:1137-1148. 2007
• Roux, K. and Marra, Peter P. 2007. "The Presence and Impact of Environmental Lead in Passerine Birds Along an Urban to Rural Land Use Gradient." Archives of Environmental Contamination and Toxicology 53 (2):261-268. https://doi.org/10.1007/s00244-006-0174-4 2007
• DeLuca, W. V., King, Ryan S., Marra, Peter P., and Whigham, Dennis F. 2007. "Threshold effects of coastal urbanization on Phragmites australis (common reed) abundance and foliar nitrogen in Chesapeake Bay." Estuaries and Coasts, 30 469–481. 2007
• Langin, K. M., Reudink, M. W., Marra, Peter P., Norris, D. R., and Ratcliffe, L. M. 2007. "Variation in stable-hydrogen isotopes within a breeding population of American redstarts: Implications for geographic assignment." Oecologia 152:449-457. 2007
• LaDeau, Shannon L., Kilpatrick, A. Marm, and Marra, Peter P. 2007. "West Nile virus emergence and large-scale declines of North American bird populations." Nature 447 (7145):710-714. https://doi.org/10.1038/nature05829 2007

Book

• Marra, Peter P. and Santella, Chris. 2016. Cat wars: the devastating consequences of a cuddly killer. Princeton University Press. https://doi.org/10.1515/9781400882878 2016

Dataset

• Cooper, Nathan, Dossman, Bryant C., Berrigan, Lucas E., Brown, J. Morgan, Cormier, Dominic A., Bégin-Marchand, Camille, Rodewald, Amanda D., Taylor, Philip D., Tremblay, Junior A., and Marra, Peter P. 2023. [Dataset] Data for Atmospheric pressure predicts probability of departure for migratory songbirds. Distributed by Washington, DC: Smithsonian National Zoo and Conservation Biology Institute. https://doi.org/10.25573/DATA.21514182.V1. 2023
• Cooper, Nathan, Dossman, Bryant C., Berrigan, Lucas E., Brown, J. Morgan, Brunner, Alicia R., Chmura, Helen E., Cormier, Dominic A., Marchand, Camille Bégin, Rodewald, Amanda D., Taylor, Philip D., Tonra, Christopher M., Tremblay, Junior A., and Marra, Peter P. 2023. [Dataset] Data for Songbirds initiate migratory flights synchronously relative to civil dusk. Distributed by Washington, DC: Smithsonian National Zoo and Conservation Biology Institute. https://doi.org/10.25573/DATA.22505938.V1. 2023
• Hallworth, Michael T., Marra, Peter P., McFarland, Kent P., Zahendra, Sara, and Studds, Colin E. 2018. [Dataset] "Tracking dragons: stable isotopes reveal the annual cycle of a long-distance migratory insect." Distributed by Dryad Digital Repository. https://doi.org/10.5061/dryad.17hf071 2018
• Hallworth, Michael T., Marra, Peter P., McFarland, Kent P., Zahendra, Sara, and Studds, Colin E. 2018. [Dataset] "Tracking dragons: stable isotopes reveal the annual cycle of a long-distance migratory insect." Distributed by https://doi.org/10.6084/m9.figshare.c.4320911.v2 2018