John G. Blake

John G. Blake

Department of Wildlife Ecology and Conservation

110 Newins-Ziegler Hall
PO Box 110430
University of Florida
Gainesville, Florida 32611


Ph.D. University of Illinois, Urbana, Illinois. January 1983.
M.S. University of Nevada, Las Vegas, Nevada. May 1977.
B.A. Prescott College, Prescott, Arizona. May 1974.


Professor, Department of Wildlife Ecology and Conservation, University of Florida (8/2011 - present).
Affiliate Faculty, School of Natural Resources and Environment, University of Florida (4/2012 - present).
Subject Editor, Biotropica (Association for Tropical Biology and Conservation), 12/2011 - present.


My research focuses on the structure and organization of bird communities in lowland forest in eastern Ecuador, at the Tiputini Biodiversity Station (~0o 38' S, 76o 08' W), established in 1994 by Universidad San Francisco de Quito on a tract of undisturbed forest within Yasuní Biosphere Reserve. We have several ongoing projects at the station. One project focuses on spatial and temporal patterns of bird diversity (as well as aspects of community composition, population dynamics, and movement) within and between two 100-ha study plots that we established in terra firme forest in 2001. We use a combination of mist nets and direct observations to record the occurrence and locations of birds within the two plots. A second major project focuses on behavior and spatial ecology of manakins (Pipridae). A third project, carried out in collaboration with the station, is a camera-trapping program focused on large terrestrial mammals and birds. Students in my lab have come from a variety of countries (e.g. Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guatemala, Luxembourg, Peru, Uruguay, United States, Venezuela).

PUBLICATIONS (since 2010)

2017 Villegas-Bilbao, M., S. D. Newsome, and J. G. Blake. Seasonal patterns in δ2H values of multiple tissues from Andean birds provide insights into elevational migration. Ecological Applications (in press).

2016 Azpiroz, A. B., and J. G. Blake. Associations of grassland birds with vegetation structure in the Northern Campos of Uruguay. The Condor - Ornithological Applications 118:12-23.

2016 Blake, J. G., and B. A. Loiselle. Long-term changes in composition of bird communities at an “undisturbed” site in eastern Ecuador. Wilson Journal of Ornithology 128:255-267.

2016 Blake, J. G., D. Mosquera, B. A. Loiselle, K. Swing, J. Guerra, and D. Romo. Spatial and temporal activity patterns of ocelots Leopardus pardalis in lowland forest of eastern Ecuador. Journal of Mammalogy 97:455-463.

2016 Mosquera, D., J. G. Blake, D. Romo, and K. Swing. Ocelot (Leopardus pardalis) density in eastern Ecuador based on capture-recapture analyses of camera-trap data. Neotropical Biodiversity 2:51-58.

2016 Mosquera, D., J. G. Blake, D. Romo, and K. Swing. New observations, activity and first videos of living Echimys saturnus (dark tree rat, Echimyide) from eastern Ecuador. Maztozoologia Neotropical (in press).

2016 Ricklefs, R. E., M. Medeiros, V. A. Ellis, M. Svensson-Coelho, J. G. Blake, B. A. Loiselle, L. Soares, A. Fecchio, D. Outlaw, P. Marra, S. C. Latta, G. Valkiūnas, O. Hellgren, and S. Bensch. Avian migration and the distribution of malaria parasites in New World passerine birds. Journal of Biogeography

2016 Svensson-Coelho, M., B. A. Loiselle, J. G. Blake, and R. E. Ricklefs. Resource predictability and specialization in avian malaria parasites. Molecular Ecology.

2015 Blake, J. G., and B. A. Loiselle. Enigmatic declines in bird numbers in lowland forest of eastern Ecuador may be a consequence of climate change. PeerJ 3:e1177; DOI 10.7717/peerj.1177

2014 Blake, J. G., and D. Mosquera. Camera trapping on and off trails in lowland forest of eastern Ecuador: Does location matter? Maztozoologia Neotropical 21:17-26.

2014 Blake, J. G., D. Mosquera, J. Guerra, B. A. Loiselle, D. Romo, and K. Swing. Yasuní - a hotspot for jaguars Panthera onca (Carnivora: Felidae)? Camera-traps and jaguar activity at Tiputini Biodiversity Station, Ecuador. Revista de Biología Tropical 62:689-698.

2014 Svensson-Coelho, M., V. A. Ellis, B. A. Loiselle, J. G. Blake, and R. E. Ricklefs. Reciprocal specialization in multi-host malaria parasite communities of birds: a temperate - tropical comparison. American Naturalist 184:624-635.

2013 Blake, J. G., and B. A. Loiselle.  Apparent survival rates of forest birds in eastern Ecuador revisited: Improvement in precision but no change in estimates. PLOS One

2013 Blake, J. G., D. Mosquera, and J. Salvador. Use of mineral licks by mammals and birds in hunted and non-hunted areas of Yasuní National Park, Ecuador. Animal Conservation 16:420-437.

2013 Coelho, M., J. Blake, L. Silveira, H. Batalha-Filho, and R. Ricklefs. Rivers, refuges, and population divergence of fire-eye antbirds (Pyriglena) in the Amazon Basin. Journal of Evolutionary Biology 26:1090-1107.

2013 Fair, J. M., T. B. Ryder, B. A. Loiselle, J. G. Blake, T. E. Larson, P. Davis, J. Syme, G. B. Perkins, and J. M. Heikoop.  Estimates of dietary overlap for six species of Amazonian manakins using stable isotopes. Isotopes in Environmental and Health Studies 31: DOI: 10.1080/10256016.2013.784702.

2013 Ronchi-Virgolini, A. L., R. E. Lorenzón, J. G. Blake, and A. H. Beltzer. Temporal variation of bird assemblages in a wetland: influence of spatial heterogeneity. Avian Biology Research 6:198-206.

2013 Svensson-Coelho, M., J. G. Blake, B. A. Loiselle, A. S. Penrose, P. G. Parker, and R. E. Ricklefs. Diversity, prevalence, and host specificity of Plasmodium and Haemoproteus in a western Amazon assemblage.  Ornithological Monographs 76:1-48.

2012 Blake, J. G, D. Mosquera, B. A. Loiselle, K. Swing, J. Guerra, and D. Romo. Temporal activity patterns of terrestrial mammals in lowland rainforest of eastern Ecuador. Ecotropica 18:137-146.

2012 Blake, J. G., and B. A. Loiselle. Temporal and spatial patterns in abundance of the Wedge-billed Woodcreeper (Glyphorynchus spirurus) in lowland Ecuador. Wilson Journal of Ornithology 124: 436-445.

2012 Blundo, C., L. R. Malizia, J. G. Blake, and A. D. Brown. Tree species distribution in Andean forests: influence of regional and local factors. Journal of Tropical Ecology 28:83-95.

2012 Hidalgo, J. R., J. G. Blake, B. A. Loiselle, T. B. Ryder, R. Durães, and W. P. Tori. Nest site selection by Blue-crowned (Lepidothrix coronata) and Wire-tailed (Pipra filicauda) manakins in lowland Ecuador. Ornitología Neotropical 23:63-71.

2011 Blake, J. G. Is tropical ecology special? Biotropica 44: 763.

2011 Blake, J. G., D. Mosquera, J.Guerra, B. A. Loiselle, D. Romo, and K. Swing. Mineral licks as diversity hotspots in lowland forest of eastern Ecuador. Diversity 2011: 217-234; doi:10.3390/d3020217.

2011 Blendinger, P. G., J. G. Blake, and B. A. Loiselle. Connecting fruit production to seedling establishment in two co-occurring Miconia species: consequences of seed dispersal by birds in upper Amazonia. Oecologia 167:61-73.

2011 Blendinger, P. G., J. G. Blake, and B. A. Loiselle. Composition and clumping of seeds deposited by frugivorous birds varies between forest microsites. Oikos 120:463-471.

2011 Durães, R., J. G. Blake, B. A. Loiselle, T. B. Ryder, W. P. Tori, and J. R. Hidalgo. Vocalization activity at leks of six manakin (Pipridae) species in eastern Ecuador. Ornitología Neotropical 22: 437-445.

2011 Ronchi-Virgolini, A. L., J. G. Blake, R. E. Lorenzón, and A. H. Beltzer. Bird assemblages in two types of forests in the floodplain of the Lower Paraná River (Argentina). Ornitología Neotropical 22:387-404.

2011 Ryder, T. B., J. G. Blake, P. G. Parker, and B. A. Loiselle. The composition, stability, and kinship of reproductive coalitions in a lekking bird. Behavioral Ecology 22:292-290.

2010 Blake, J. G., D. Mosquera, J. Guerra, and D. Romo. New locality records and the first photographs of living Echimys saturnus (Dark Tree Rat, Echimyidae) from eastern Ecuador. Ecotropica. 16:141-144.

2010 Blake, J. G., J. Guerra, D. Mosquera, R. Torres, B. A. Loiselle, and D. Romo. Use of mineral licks by white-bellied spider monkeys (Ateles belzebuth) and red howler monkeys (Alouatta seniculus) in eastern Ecuador.  International Journal of Primatology 31:471-483.

2010 Ryder, T., W. Tori, J. Blake, B. Loiselle, and P. Parker. Mate choice for genetic quality: a test of the heterozygosity and compatibility hypotheses. Behavioral Ecology 21:203-210.



Matt Hallett (USA), Ph.D. Participatory monitoring of large mammals in the Rupununi Region, Guyana.

Luis Daniel Montalvo (Ecuador), Ph.D. Distribution of birds along a moisture gradient in western Ecuador. (co-advisor with S. Robinson).

Prescillia Rindang Putri (Indonesia), M.S., (co-advisor with L. Branch).


Jorge Perez-Eman (Venezuela), M.S., 1995. A comparison of bird and bat community structure in a tropical lowland rain forest of Venezuela., Ph.D., 2002. Molecular phylogenetics and biogeography of the genus Myioborus (Aves, Parulinae)

Grace Servat (Peru), M.S., 1995. Availability and use of food resources by two species of Automolus (Aves, Furnariidae).

José Tello (Peru), M.S. 1996. Lekking behavior of the Round-tailed Manakin (Pipra chloromeros) and patterns of advertisement call evolution in Pipra erythrocephala clade.

Lorena Calvo (Guatemala), M.S. 1997. Bird species diversity within different systems of coffee plantations in Guatemala.

Teresita Lomáscolo (Argentina). 1997. Interacciones entre mirtaceas arboreas y aves frugivoras en un gradiente altitudinal de las selvas de montaña. Universidad Nacional de Tucumán, (co-director, Proyecto de Beca de Iniciacíon, CONICET).

Gillian Bowser (USA), Ph.D., 1998 (co-advisor). Genetics, geographics, and prairie dogs: a landscape model of prairie dog (Cynomys ludovicianus) dispersal.

Lucio Malizia (Argentina), 1998. Variacion estacional de la avifauna en un relicto de selvas pedemontañas de la Provincia de Tucumán. Universidad Nacional de Tucumán. (co-director, Proyecto de Beca de Iniciación del Consejo de Investigaciones de la UNT).

Catherine Graham (USA), Ph.D., 1999. Individual, species and community level responses of birds to forest fragmentation in southern Mexico.

Luzmilla Arroyo (Bolivia), M.S., 2000. Plant communities in continuous forst and isolated forest patches on the Serranía de Huanchaca, Bolivia.

Ana Carolina Monmany (Argentina), 2000. Influencia de la distancia al bosque sobre las interacciones en cultivos de paltas (Persea americana) de la Alta Cuenca de Rio Bermejo, Salta. Laboratorio de Investigaciones Ecológicas de Las Yungas, (co-director).

Frank Wolff (Luxembourg), M.S. 2001. Vertebrate ecology in caatinga: A. Distribution of wildlife in relation to water. B. Diet of pumas (P. concolor) and relative abundance of felids.

Jorge Perez-Eman (Venezuela), Ph.D., 2002. Molecular phylogenetics and biogeography of the genus Myioborus (Aves, Parulinae).

Mercedes Rougès (Argentina), Ph.D., 2004. Bird community dynamics along an altitudinal gradient in subtropical montane forests.

Iván Jiménez (Colombia), Ph.D., 2005. Understanding vertebrate frugivores through foraging theory.

Lucio Malizia (Argentina), Ph.D., 2005. Diversity and distribution of tree species in subtropical Andean forests.

Cintia Cornelius (Chile), Ph.D., 2006. Genetic and demographic consequences of human-driven landscape changes on birds: a case study using Aphrastura spinicauda and Scelorchilus rubecula.

Brandt Ryder (USA), Ph.D., 2008. Reproductive and social dynamics of a lek breeding bird.

Adrián Azpiroz (Uruguay), Ph.D., 2008. Grassland birds in natural and cultivated grasslands in the Northern Campos of Uruguay: Diversity patterns, responses to vegetation structure and nest survival.

Adriana Rodríguez-Ferraro (Venezuela), Ph.D., 2008. Community ecology and phylogeography of bird assemblages in arid zones of northern Venezuela: Implications for the conservation of restricted-range birds.

Marcos Maldonado-Coehlo (Brasil), Ph.D., 2010. Systematics, biogeography and population genetics of Fire-eye antbirds (Thamnophilidae, Aves) in the Neotropics.

Teresa C. Allen (USA), Ph.D., 2010 (co-advisor). Middle Mississippi River islands: historical distribution, restoration planning, and biological importance.

Eduardo Martín (Argentina), Ph.D., 2011 (co-director), Promiscuidad en aves con reproducción cooperativa: implicancias ecológicas y evolutivas en Coryphistera alaudina (Furnariidae). Universidad Nacional de Tucumán, Argentina, Insituto de Ecología Regional.

Esteban Carrillo Chica (Colombia), MS., 2013. Dispersión direccional de semillas por saltarines (Aves: Pipridae) en bosques de la Amazonia. Maestría en Estudios Amazónicos, Universidad Nacional de Colombia - Sede Amazonia. (Director).

Luis Daniel Montalvo (Ecuador), MS., 2014. Patterns of species diversity in Ecuador: Variation of bird communities at different scales.

Julia Salvador (Ecuador), M.S., 2015. Effects of human disturbance on occurrence patterns and behavior of terrestrial mammals in Eastern Ecuador.

Mariana Villegas (Bolivia), Ph.D., 2016. Ecological differentiation in Chiroxiphia boliviana (Aves, Pipridae): Insights from morphology, vocalizations, ecological niche modeling and stable isotopes.