Publicaciones Científicas: Recent submissions

Now showing items 461-480 of 490

Extinctions: A message from the frogs

Blaustein, Andrew R.; Dobson, Andy (Nature, 2006-01-12)

None available.
Fronteras biogeográficas: Coincidencia entre factores climáticos, topográficos, geológicos e históricos

Kohlmann, Bert; Wilkinson, Justin (Una perspectiva latinoamericana de la biogeografía, 2003)

None available.
Predator recognition and evasive behavior by sweat bees, Lasioglossum umbripenne (Hymenoptera: Halictidae), in response to predation by ants, Ectatomma ruidum (Hymenoptera: Formicidae)

Weislo, William T.; Schatz, Bertrand (Behavioral Ecology and Sociobiology, 2003-02)

Ectatomma ruidum is an abundant soil-nesting Neotropical ant, which displays extensive behavioral flexibility during foraging activities. We studied here one unusual element of their behavioral repertoire: ambush predation. ...
Joining Inventory by Parataxonomists with DNA Barcoding of a Large Complex Tropical Conserved Wildland in Northwestern Costa Rica

Janzen, Daniel H.; H. Winnie (Plos ONE, 2011-08-16)

Background: The many components of conservation through biodiversity development of a large complex tropical wildland, Area de Conservacion Guanacaste (ACG), thrive on knowing what is its biodiversity and natural history. ...
Can we really manage tropical forests without knowing the species within? Getting back to the basics of forest management through taxonomy

Biscaia de Lacerda, André Eduardo; Nimmo, Evelyn Roberta (Elsevier, 2010)

Considering the pressures on tropical forests from deforestation and the recent expansion of harvesting through forest concessions in the Brazilian Amazon, it is imperative that forest management systems are scrutinized ...
Noise pollution in national parks: Soundscape and economic valuation

Diaz-Balteiro, Luis; Merchan, Carlos Iglesias; Soliño, Mario (Elsevier, 2014)

In this study a national park soundscape characterisation was contrasted with an economic estimation of the impact of noise pollution on the park visitors’ perception. The main noise sources were identified and the ...
Research Priorities for Neotropical Dry Forests

Sánchez-Azofeifa, G.Arturo; Quesada, Mauricio; Rodríguez, Jon Paul; Nassar, Jafet M.; Stoner, Kathryn E.; Castillo, Alicia; Garvin, Theresa; Zent, Egleé L.; Calvo-Alvarado, Julio C.; Kalacska, Margaret E.R.; Fajardo, Laurie; Gamon, John A.; Cuevas-Reyes, Pablo (Wiley-Blackwell for the Association for Tropical Biology & Conservation, 2005-12)

Our understanding of the human and biophysical dimensions of tropical dry forest change and its cumulative effects is still in the early stages of academic discovery. The papers in this special section on Neotropical dry ...
Biodiversity, conservation, and hotspot atlas of Costa Rica: a dung beetle perspective (Coleoptera: Scarabaeidae: Scarabaeinae)

Kohlmann, Bert; Solís, Ángel; Elle, Ortwin; Soto, Xinia; Russo, Ricardo (Magnolia Press, 2007)

This paper is an analysis of the distribution of areas of high species richness and endemicity based on dung beetles living in the different Holdridge life-zones of Costa Rica by using a geographic information system (GIS). ...
Cytoskyrins and Cytosporones Produced by Cytospora sp. CR200: Taxonomy, Fermentation and Biological Activities

Singh, Maya P.; Janso, Jeffrey E.; Brady, Sean F. (Multidisciplinary Digital Publishing Institute, 2007-07-19)

In screening endophytic fungi from Costa Rica for bioactivity, fungal culture CR200, isolated from a buttonwood tree, was found to contain compounds that initiate DNA damage in a test strain of E. coli (Biochemical Induction ...
Integrity and isolation of Costa Rica’s national parks and biological reserves: examining the dynamics of land-cover change

Sánchez-Azofeifa, G.Arturo; Daily, Gretchen C.; Pfaff, Alexander S.P.; Busch, Christopher (Elsevier, 2003)

The transformation and degradation of tropical forest is thought to be the primary driving force in the loss of biodiversity worldwide. Developing countries are trying to counter act this massive lost of biodiversity by ...
Pervasive Defaunation of Forest Remnants in a Tropical Biodiversity Hotspot

Kierulff, Maria Cecilia M.; Gatto, Cassiano A. Ferreira; Guidorizzi, Carlos E.; Peres, Carlos A.; Canale, Gustavo R. (PLOS one, 2012)

Tropical deforestation and forest fragmentation are among the most important biodiversity conservation issues worldwide, yet local extinctions of millions of animal and plant populations stranded in unprotected forest ...
Ecological fitting as a determinant of the community structure of platyhelminth parasites of anurans

Brooks, Daniel R.; León-Règagnon, Virginia; McLennan, Deborah A.; Zelmer, Derek (Ecology, 2006-07-01)

Host–parasite associations are assumed to be ecologically specialized, tightly coevolved systems driven by mutual modification in which host switching is a rare phenomenon. Ecological fitting, however, increases the ...
Cronología de la regeneración del bosque tropical seco en Santa Rosa, Guanacaste, Costa Rica. II. La vegetación en relación con el suelo

Leiva, Jorge A.; Rocha, Oscar J.; Mata, Rafael; Gutiérrez-Soto, Marco V. (2009-09)

Tropical dry forest (TDF) succession was monitored in Santa Rosa, Costa Rica. We analyzed the effect of soil type on forest structure and diversity. Eight seasonally-dry TDF sites located along a successional chrono-sequence ...
Is oil palm the next emerging threat to the Amazon?

Butler, Rhett A.; Laurance, William F. (Tropical Conservation Science, 2009-03-23)

The Amazon Basin appears poised to experience rapid expansion of oil palm agriculture. Nearly half of Amazonia is suitable for oil palm cultivation, and Malaysian corporations are now moving into the region to establish ...
THE DUETTING BEHAVIOR OF PACIFIC COAST PLAIN WRENS

Cuthbert, Jessica L.; Mennill, Daniel J. (The Condor, 2007-08)

We provide the first detailed analysis of the vocal behavior of Pacific coast Plain Wrens (Thryothorus modestus modestus). Male Plain Wrens sing two categories of song phrase; one phrase is given as a solo song or duet ...
Global mammal distributions, biodiversity hotspots, and conservation

Ceballos, Gerardo; Ehrlich, Paul R. (The National Academy of Sciences of the USA, 2006-12-12)

Hotspots, which have played a central role in the selection of sites for reserves, require careful rethinking. We carried out a global examination of distributions of all nonmarine mammals to determine patterns of species ...
Beyond Paradise—Meeting the Challenges in Tropical Biology in the 21st Century

Bawa, Kamaljit S.; Kress, W. John; Nadkarni, Nalini M.; Lele, Sharachchandra (The Association for Tropical Biology & Conservation, 2004)

Tropical ecosystems support a diversity of species and ecological processes that are unparalleled anywhere else on Earth. Despite their tremendous social and scientific importance, tropical ecosystems are rapidly disappearing. ...
Bakkeius moragai n. gen. et n. sp. and Pojmanskia riosae n. gen. et n. sp. (Trematoda: Digenea: Brachylaimoidea) in Birds from the Área de Conservación Guanacaste, Costa Rica

Zamparo, David; Brooks, Daniel R.; Causey, Douglas (American Society of Parasitologists, 2003-08-01)

We describe 2 new species of leucochloridiid-like brachylaimoid digeneans parasitizing a variety of birds in the Area de Conservacio´n Guanacaste, Costa Rica, each of which we assign to a new genus. According to Pojmanska’s ...
A New Montane Species of Spiny Pocket Mouse (Rodentia: Heteromyidae: Heteromys) from Northwestern Costa Rica

Anderson, Robert P.; Timm, Robert M. (American Museum Novitates, 2006-03)

Recent taxonomic works have recognized only two species of spiny pocket mice of the genus Heteromys (Rodentia: Heteromyidae) from Costa Rica. Within Costa Rica, the widespread H. desmarestianus is considered to occur ...
Genetic comparisons between Heteromys desmarestianus and the recently described H. nubicolens (Rodentia: Heteromyidae) in northwestern Costa Rica

Anderson, R. P.; Jansa, S. A. (Mammalian Biology, 2007-01-31)

[No abstract available]

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