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Published Research from the Osa

Osa Conservation data can be accessed through our Open Science Framework Page.


This bibliography includes important conservation research publications, including those done by Osa Conservation as well as our research partners seeking to better understand the biodiversity of the region and strategies for protecting our vital ecosystems.


Whitworth, A., Beirne, C., Flatt, E., Froese, G., Nuñez, C. and Forsyth, A. (2021), Recovery of dung beetle biodiversity and traits in a regenerating rainforest: a case study from Costa Rica’s Osa Peninsula. Insect Conserv Divers. https://doi.org/10.1111/icad.12470

Brumberg H., Beirne C., North B.E., Zambrano A.M.A., Zambrano S.L.A., Gil C.A.Q., Gutierrez B.L., Eplee R., Whitworth A. (2021), Riparian buffer length is more influential than width on river water quality: A case study in southern Costa Rica. Journal of Environmental Management, 286, 112132.


Smith C., Whitworth A., Brunner E., and Pomilia M. (2020) Habitat selection and diet of the Neotropical otter (Lontra longicaudis) on the Osa Peninsula, Costa Rica, and range-wide monitoring recommendations. Neotropical Biodiversity, 6(1), 62-74.


Fournier M.L, Castillo L.E., Ramirez F., Moraga G., and Ruepert C. (2019) Preliminary evaluation of the agricultural area and its influence on water quality in the Golfo Dulce, Costa Rica. Tropical Journal of Environmental Sciences, 53(1), 92-112.

Guell B.A., Gonzáles K., and Pedreso-Santos F. (2019) Opportunistic predation by two aquatic-feeding predators on an explosive-breeding aggregation of arboreal gliding treefrogs (Agalychnis spurrelli Boulenger, 1913; Anura: Phyllomedusidae) on the Osa Peninsula of Costa Rica. Herpetology Notes, 12, 795-798.

Güell, B. A., & González, K. (2019). Mating Mayhem. Frontiers in Ecology and the Environment, 17(2), 128-128. https://doi.org/10.1002/fee.2011

Whitworth A., Whittaker L., Pillco Huarcaya R., Flatt E., Lopez Morales M., Connor D., Garrido Priego M., Forsyth A., and Beirne C. (2019) Spider Monkeys Rule the Roost: Ateline Sleeping Sites Influence Rainforest Heterogeneity. Animals, 9(12), 1052.


Deleva, S.; Chaverri, G. (2018) Diversity and Conservation of Cave-Dwelling Bats in the Brunca Region of Costa Rica. Diversity, 10, 43.

Sistema Nacional de Áreas de Conservación. 2018. Estado de conservación del jaguar (Panthera onca) en Costa Rica a través de la integración de datos de registros de la especie y modelaje del hábitat idóneo. Proyecto–JICA. Santo Domingo de Heredia, Costa Rica.

Whitworth A, Pillco Huarcaya R, Gonzalez Mercado H, Dominie Braunholtz L and Ross MacLeod. (2018) Food for thought. Rainforest carrion-feeding butterflies are more sensitive indicators of disturbance history than fruit feeders. Biological Conservation, 217: 383-390.

Whitworth A, Pillco Huarcaya R, Downie R, Villacampa J, Dominie Braunholtz L, and Ross MacLeod. (2018) Long lasting impressions: After decades of regeneration rainforest biodiversity remains differentially affected following selective logging and clearance for agriculture. Global Ecology and Conservation (13).

Whitworth A., Beirne C., Flatt E., Pillco Huarcaya R., Cruz Diaz JC., Forsyth A., Molnár PK., and Vargas Soto JS. (2018) Secondary forest is utilized by Great Curassows (Crax rubra) and Great Tinamous (Tinamus major) in the absence of hunting. The Condor: Ornithalogical Applications, 120, 852-862.


Bessesen BL, Galbreath GJ (2017) A new subspecies of sea snake, Hydrophis platurus xanthos, from Golfo Dulce, Costa Rica. ZooKeys 686: 109-123

Li, L., Aguilar, R., & Berkov, A. 2017. What shapes cerambycid beetle communities in a tropical forest mosaic? Assessing the effects of host tree identity, forest structure, and vertical stratification. Biotropica, 49(5), 675-684.

Reyna­, H. R., Radachowsky, J., Mcloughlin, L., Thornton, D., Moreira­, R. J., García­, A. R.,  and J Polisar. 2017. White-lipped Peccary in Mesoamerica: Status, Threats and Conservation Actions. Suiform Soundings. Newsletter of the IUCN/SSC Wild Pig, Peccary and Hippo Specialist Groups.

Schank, C. J., Cove, M. V., Kelly, M. J., Mendoza, E., O’Farrill, G., Reyna‐Hurtado, R., and R Moreno. 2017. Using a novel model approach to assess the distribution and conservation status of the endangered Baird’s tapir. Diversity and Distributions.


Begley, Aimee and Brett Farley. 2016. Feeding Party Size, Diet, and Resource Patch Us of Black-handed Spider Monkeys (Ateles geoffroyi) in Costa Rican Lowland Wet Forest. Sapient: Undergraduate Journal of Biological Anthropology (4): 31- 36.

Hurdle, J. 2016 August 11. In Costa Rica, Photographing Jaguars to Help Save Them. New York Times.

Skrinyer, A.J., 2016. Living on the Edge: An Assessment of Habitat Disturbance and Primate Use on the Osa Peninsula, Costa Rica (Doctoral dissertation, Kent State University).

Balzotti, C.S., Asner, G.P., Taylor, P.G., Cole, R., Osborne, B.B., Cleveland, C.C., Porder, S. and Townsend, A.R., 2016. Topographic Distributions of Emergent Trees in Tropical Forests of the Osa Peninsula, Costa Rica. Ecography.

Balzotti, C. S., Asner, G. P., Taylor, P. G., Cleveland, C. C., Cole, R., Martin, R. E., Nasto, M., Osborne, B. B., Porder, S. and Townsend, A. R. (2016), Environmental controls on canopy foliar nitrogen distributions in a Neotropical lowland forest. Ecological Applications, 26: 2449–2462. doi: 10.1002/eap.1408


Barrios, C. 2015. Rios Saludables en San Josecito. Ballena Tales 41: 42-23.

Bessesen, B.L. 2015. Occurrence and distribution patterns of several marine vertebrates in Golfo Dulce, Costa Rica. Revista de Biología Tropical 63 (Supl.1): 261-272. 

Gutierrez-Sanabria, D.R., 2015.  Selección de hojas de Carludovica palmata como refugio por el murcielago toldero (Dermanura watsoni) en la Estación Biológica Piro, Península de Osa, Costa Rica. Revista Biodiversidad Neotropical, 5(1): 23-28.

Leavelle, Karen M., Powell, George V. N., Powell, Luke L.,  and Forsyth, Adrian. 2015. A Radio-telemetry Study of Home Range and Habitat Use of the Endangered Yellow-billed Cotinga (Carpodectes antoniae) in Costa Rica. The Wilson Journal of Ornithology: 127, 2:  302-309.

Parreno Duque, D., P. Bernal Castro and J. Palmer. 2015. Rios Saludables de Osa: una novedosa red de seguimiento de cuerpos de agua por parte de la comunidad. Cuadernos de Biodiversidad 49: 14-19.

Taylor, P., G. Asner, K. Dahlin, C. Anderson, D. Knapp, R. Martin, J. Mascaro, R. Chazdon, R. Cole,  W. Wanek, F. Hofhansl, E. Malavassi, B. Vilchez-Alvarado, A. Townsend. 2015. Landscape-scale controls on aboveground forest carbon stocks on the Osa Peninsula, Costa Rica.

PLOS ONE | DOI:10.1371/journal.pone.0126748 June 10, 2015

Taylor, P.G., W. Wieder, S. Weintraub, S. Cohen, C.C. Cleveland, and A. R. Townsend. 2015. Organic forms dominate hydrologic nitrogen export from a lowland tropical watershed. Ecology, 96(5): 1229–124.

Weintraub, S. R., P. G. Taylor, S. Porder, C. C. Cleveland, G. P. Asner, and A. R. Townsend (2015). Topographic controls on soil nitrogen availability in a lowland tropical forest. Ecology 96: 1561-1574. 


Aranda-Coello, J. Manuel. 2014. Hábitos alimentarios de la nutria neotropical, Lontra longicaudis (Mammalia: Carnivora) en el río Piro, península de Osa, Costa Rica durante la estación lluviosa. BRENESIA 81-82: 119-120. 

Bessesen, B. L., L. Oviedo, L. Burdett Hart, D. Herra-Miranda, J. D. Pacheco-Polanco, L. Baker, G. Saborío-Rodriguez, L. Bermúdez-Villapol, A. Acevedo-Gutiérrez. 2014. Lacaziosis-like disease among bottlenose dolphins Tursiops truncatus photographed in Golfo Dulce, Costa Rica. DISEASES OF AQUATIC ORGANISMS 107: 173-180. 

Laidre, M.E. & R. Trinh. 2014. Unlike terrestrial hermit crabs, marine hermit crabs do not prefer shells previously used by conspecifics (A diferencia de los cangrejos ermitaños terrestres, cangrejos ermitaños marinos no prefieren conchas utilizadas previamente por sus congéneres). Crustaceana 87: 856-865.

Laidre, M.E. 2014. The social lives of hermits (Las vidas sociales de los ermitaños). Natural History 122: 24-29.

Nasto, M. K, S. Alvarez-Clare, Y. Lekberg, B. W. Sullivan, A. R. Townsend and C. C. Cleveland. 2014. Interactions among nitrogen fixation and soil phosphorus acquisition strategies in lowland tropical rain forests. Ecology Letters: 1-8.

Sullivan, B., W.W. Kolby Smith, A. R. Townsend, M. K. Nasto, S. C. Reed, R. L. Chazdon, and C. C. Cleveland 2014. Spatially robust estimates of biological nitrogen (N) fixation imply substantial human alteration of the tropical N cycle. PNAS: 1-6.

Sullivan, B.W., S. Alvarez-Clare, S.C. Castle, S. Porder, S.C. Reed, L. Schreeg, A. R. Townsend and C.C. Cleveland. 2014. Assessing nutrient limitation in complex forested ecosystems: alternatives to large-scale fertilization experiments.  Ecology 95(3): 668-681

Thompson, M. E. 2014. Effects of Environmental Variation on Amphibian and Reptile Community Assembly, Habitat Use, and Morphology During Tropical Secondary Forest Succession. Dissertation Proposal, Department of Biological Sciences Florida International University


Keller, A. B., S. C. Reed, A. R. Townsend, C. C. Cleveland. 2013. Effects of canopy tree species on belowground biogeochemistry in a lowland wet tropical forest. Soil Biology & Biochemistry 58: 61-69.

Laidre, M.E. 2013a. “Eavesdropping foragers use level of collective commotion as public information to target high quality patches (Forrajeadores fisgones utilizan el nivel de conmoción colectiva como información pública para fijar su objetivo en parches de alta calidad).” Oikos 122: 1505-1511.

Laidre, M.E. & R.A. Johnstone. 2013. “Animal signals. (Las señales de los animales).” Current Biology 23: R829-R833.

Laidre, M.E. 2013b. “Foraging across ecosystems: diet diversity and social foraging spanning aquatic and terrestrial ecosystems by an invertebrate (Forrajeando a través de ecosistemas: diversidad de dieta y forrajeo social que abarca ecosistemas acuáticos y terrestres por parte de un invertebrado).” Marine Ecology 34: 80-89.

Morales-Salazar, M., B. Vílchez-Alvarado, R. Chazdon, M. Ortega-Gutiérrez, E. Ortiz-Malavassi, M. Guevara-Bonilla. 2013. Estructura, composición y diversidad vegetal en bosques tropicales del Corredor Biológico Osa, Costa Rica. Revista Forestal Mesoamericana Kurú (Costa Rica) 10.24: 1-13.


Aguilar-Arias, H., E. Ortiz-Malavassi, B. Vílchez-Alvarado,Chazdon. 2012. Biomasa sobre el suelo y carbono orgánico en el suelo en cuatro estadios de sucesión de bosques en la Península de Osa, Costa Rica. Revista Forestal Mesoamericana Kurú (Costa Rica) 9.22: 22-31.

Bessesen, B.L. 2012.  Geospatial and behavioral observations of a unique xanthic colony of pelagic sea snakes, Pelamis platurus, residing in Golfo Dulce, Costa Rica. Herpetological Review 43.1: 22-26.

Bessesen, B.L. and G. Saborio-R. 2012. Tropical fiord habitat as a year-round resting, breeding, and feeding ground for East Pacific Green Sea Turtles (Chelonia mydas) off Costa Rica. Herpetological Review 43.4: 539-541. 

Laidre, M.E. 2012a. Homes for hermits: temporal, spatial and structural dynamics as transportable homes are incorporated into a population (Casas para ermitaños: dinámicas temporales, espaciales, y estructurales a medida que casas transportables son incorporadas a la población). Journal of Zoology 288: 33-40.

Laidre, M.E. 2012b. Niche construction drives social dependence in hermit crabs (La construcción del nicho promueve la dependencia social en cangrejos ermitaños). Current Biology 22: R861- R863.

Laidre, M.E., E. Patten & L. Pruitt. 2012. Costs of a more spacious home after remodelling by hermit crabs (Costos de un hogar mas espacioso luego de remodelacion por cangrejos ermitaños). Journal of the Royal Society Interface 9: 3574-3577.

Laidre, M.E. & G.J. Vermeij. 2012. A biodiverse housing market in hermit crabs: proposal for a new biodiversity index (Un Mercado biodiverso de casas en cangrejos ermitaños: propuesta para un Nuevo Índice de biodiversidad). Cuadernos de Investigación UNED 4: 175-179. (Research Journal of the Costa Rican Distance Education University, ISSN: 1659-4266)

Morales-Salazar, M., B. Vílchez-Alvarado, R. L. Chazdon, M. Ortega Gutiérrez, E. Ortiz-Malavassi, M. Guevara-Bonilla. 2012. Diversidad y estructura horizontal en los bosques tropicales del Corredor Biológico de Osa, Costa Rica. Revista Forestal Mesoamericana Kurú (Costa Rica) 9.23: 19-28.


Laidre, M.E. 2011. Ecological relations between hermit crabs and their shell-supplying gastropods: constrained consumers (Relaciones ecológicas entre los cangrejos ermitaños y los gasterópodos que les suministran sus conchas: consumidores restringidos). Journal of Experimental Marine Biology and Ecology 397: 65-70.

Mangiamele LA, Burmeister SS. 2011. Auditory selectivity for acoustic features that confer species recognition in the túngara frog. Journal of Experimental Biology 214:2911-2918.


Chakraborty M, Mangiamele LA, Burmeister SS. 2010. Neural activity patterns in response to interpsecific and intraspecific variation in mating calls in the túngara frog. PLoS One 5(9):e12898.

Laidre, M.E. 2010. How rugged individualists enable one another to find food and shelter: field experiments with tropical hermit crabs (Cómo individualistas toscos permiten unos a otros el encontrar comida y refugio: experimentos de campo con cangrejos ermitaños tropicales). Proceedings of the Royal Society of London Series B, Biological Sciences 277: 1361-1369.


Bessesen, B.L. and G. Saborío-R. 2009. First report of vesper rat, Nyctomys sumicrasti (Rodentia: Muridae) feeding on palm fruits. Brenesia 71/72: 73-76. 

Chakraborty M, Burmeister SS. 2009. Estradiol induces sexual behavior in female túngara frogs. Hormones and Behavior 55:106-112.


Burmeister SS, Mangiamele LA, Lebonville CL. 2008. Acoustic modulation of immediate early gene expression in the auditory midbrain of female túngara frogs. Brain Research, 1190:105-114.

Mangiamele LA, Burmeister SS. 2008. Acoustically evoked immediate early gene expression in the pallium of female túngara frogs. Brain, Behavior and Evolution 72(3):239-250.

Hawley, T. J. 2008.  Mechanisms underlying frog occupancy patterns in a landscape mosaic of tropical forest and pasture.” University of Miami Scholarly Repository

Oviedo, L. & M. Solís. 2008. Underwater topography determines critical breeding habitat for humpback whales near Osa Peninsula, Costa Rica: implications for Marine Protected Areas.” Revista de Biologia Tropical 56.2: 591-602.


Laidre, M.E. In review. “Selfish herds show collective intelligence when determining all is safe following predation. (Manadas egoístas demuestran la inteligencia colectiva cuando determinan que todo está seguro después de la depredación).”  Biology Letters


Winrock International, 2006  “Terrestrial Carbon Storage in the Osa Peninsula, Punta Arenas, Costa Rica.” (2006): 1-23.



Rios Saludables de Osa – Costa Rica [Citizen Science Data Atlas]


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