Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

Dureza de las semillas en Persea americana (Lauraceae) y Dioclea reflexa (Papilionaceae) y el comportamiento de alimentación en las guatusas (Dasyprocta punctata)

Creator

Maria Peterson

Files

Download

Download Full Text (113 KB)

Publication Date

August 2007

Abstract

Agoutis are a common study subject because of their caching behavior and for their role in seed dispersal in the tropics (Wainwright 2002). This study examined the relationship between the hardness of seed coats and their rate of consumption by conducting trials at eight known agouti territories in Monteverde, Costa Rica using softened and untreated seeds. Trials were conducted separately for each seed species. A significant difference was found between the number of hard and soft seeds of Persea americana and Dioclea reflexa left behind at the sites. According to statistical tests, agoutis seem to prefer softer seeds of P. americana over hard seeds (Wilcoxon Matched Pairs test, p = 0.0858) and no preference in D. reflexa (Wilcoxon Matched Pairs test, p = 0.715). This difference can be explained by the much more noticeable softening of P. Americana when compared to D. reflexa, which may have allowed a shorter seed handling time. Las guatusas son un objeto común de estudio por su comportamiento de almacenamiento de semillas y porque cumplen un papel importante en la dispersión de semillas en los trópicos (Wainwright 2002). Este estudio examino la relación entre la dureza de las semillas y su tasa de consumo haciendo pruebas en ocho sitios en Monteverde, Costa Rica, usando semillas suavizadas y no tratadas.

Keywords

Central American agouti, Pizote Centroamericano, Seeds--Dispersal, Semillas--Dispersion, Food preferences, Preferencias de alimentos, Costa Rica--Puntarenas--Monteverde Zone, Costa Rica--Puntarenas--Zona de Monteverde, CIEE Summer 2007, CIEE Verano 2007

Description

Student affiliation : Department of zoology, University of Wisconsin-Madison Born Digital

Subject: topical

Central American agouti; Pizote Centroamericano; Seeds--Dispersal; Semillas--Dispersion; Food preferences; Preferencias de alimentos; CIEE Summer 2007; CIEE Verano 2007

Subject: geographic

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

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00403

Seed toughness in Persea americana (Lauraceae) and Dioclea reflexa (Papilionaceae) and feeding behavior in agoutis (Dasyprocta punctata)

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.