Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

La depredación del huevo y la diversidad de depredadores de huevos en el bosque y el hábitat abierto de la región de Monteverde

Creator

Julia Benson

Files

Download

Download Full Text (105 KB)

Publication Date

August 2006

Abstract

As habitats continue to be destroyed and fragmentation decreases the number of large predators, intermediate predators are expected to thrive. To further investigate whether the intermediate predator hypothesis applies to open areas in addition to edges, the difference in the amount of egg predation and the egg predator diversity in the forest and open habitat of the Monteverde region was tested. Each night three clusters of eggs with three quail eggs and three fake plasticine eggs were placed in each habitat. Results showed a significant difference between the total number of real eggs removed from the two habitats, (Chi-squared test, 2 = 5.373, p = 0.0205, n = 2) but there was no difference between the number of eggs removed each night between the two habitats (Sign test, p > 0.05). It is thought that fewer eggs are removed from the open area because other, more preferred food sources such as gardens and compost exist in the open area. Como los hábitats siguen siendo destruidos y la fragmentación disminuye el número de los depredadores grandes, se espera que los depredadores intermedios prosperen. Con el fin de investigar si la hipótesis de los depredadores intermedios es valida en áreas abiertas al igual que en los bordes, se examinó la diferencia entre la cantidad de depredación de huevos y la diversidad de depredadores de huevos en el bosque y en el hábitat abierto en la región de Monteverde.

Keywords

Fragmented landscapes, Paisajes fragmentados, Predatory animals--Ecology, Animales depredadores—Ecologia, Species diversity, Diversidad de especies, Costa Rica--Puntarenas--Monteverde Zone, Costa Rica--Puntarenas--Zona de Monteverde, CIEE Summer 2006, CIEE Verano 2006

Description

Student affiliation : Department of Biology, University of Wisconsin Born Digital

Subject: topical

Fragmented landscapes; Paisajes fragmentados; Predatory animals--Ecology; Animales depredadores—Ecologia; Species diversity; Diversidad de especies; CIEE Summer 2006; CIEE Verano 2006

Subject: geographic

Costa Rica--Puntarenas--Monteverde Zone; Costa Rica--Puntarenas--Zona de Monteverde

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00302

Egg predation and egg predator diversity in forest and open habitat of the Monteverde region

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.