Preference on the scatter-hoarding behavior of the Central American Agouti (Dasyprocta punctata)

Citation
Preference on the scatter-hoarding behavior of  the Central American Agouti (Dasyprocta punctata)

Material Information

Title:
Preference on the scatter-hoarding behavior of the Central American Agouti (Dasyprocta punctata)
Translated Title:
Preferencia en el comportamiento de dispersión del agutí Centro Americano (Dasyprocta punctata)
Creator:
Wittman, Emily, Christine
Publication Date:
Language:
Text in English

Subjects

Subjects / Keywords:
Central American agouti ( lcsh )
Pizote Centroamericano ( lcsh )
Rodents--Behavior ( lcsh )
Roedores--Comportamiento ( lcsh )
Costa Rica--Puntarenas--Monteverde Zone--Cerro Plano
Costa Rica--Puntarenas--Zona de Monteverde--Cerro Plano
CIEE Spring 2005
CIEE Primavera 2005
Genre:
Reports

Notes

Abstract:
Dasyprocta punctata is a scatter hoarding rodent commonly found in the lowland rainforests of Costa Rica. Its method of seed dispersal consists of carrying seeds from the ground below trees and storing each individual seed in small caches for consumption in times of food scarcity (Jansen et al. 2002). For this reason, D. punctata plays an important role in seedling recruitment and forest composition (Herrera and Pellmyr 2002). The purpose of this study was to determine the role preference played on the scatterhoarding behavior of D. punctata. Three species of seeds (Panopsis suaveolens, Persea americana, and Inga punctata) were offered at the Finca Ecológica in the Monteverde region of Costa Rica to observe the role of preference. A total of 420 seeds were presented to D. punctata at the site over a two-week period; data were collected on what behaviors were performed on the seeds. Results showed significant preference for different behavior treatments of seeds (Chi- squared = 7.11, p = 0.05), in addition to significant preference for caching seeds in different microhabitats (Chi – squared = 26.3, p = 0.05). ( , )
Abstract:
Dasyprocta punctata es un roedor dispersor y acaparador que se encuentra comúnmente en los bosques lluviosos de la bajura de Costa Rica. Su método de dispersión de semillas consiste en trasladar las semillas del sitio y almacenarlas individualmente en reservas pequeñas para el consumo en tiempos de escasez de alimento (Jansen et al. 2002). D. punctata juega un papel importante en el reclutamiento de plántulas y en la composición del bosque (Herrera and Pellmyr 2002). El propósito de este estudio fue determinar el papel de la preferencia en la conducta de dispersión y acaparamiento de D. punctata. Un estudio se realizó en la Finca Ecológica en la región de Monteverde de Costa Rica para observar el papel de la preferencia entre tres especies de semillas: Panopsis suaveolens, Persea americana e Inga punctata. Un total de 420 semillas fue presentado a D. punctata in situ en un período de dos semanas; se hicieron observaciones sobre el comportamiento de D. punctata en la manipulación de las semillas. Los resultados mostraron preferencias significativas para diferentes tratamientos de semillas (Chi- squared = 7,11, p = 0.05), además de una preferencia significativa para guardar las semillas con respecto a los microhábitats diferentes (Chi- squared = 26.3, p = 0.05).
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Born Digital

Record Information

Source Institution:
Monteverde Institute
Holding Location:
Monteverde Institute
Rights Management:
This item is licensed with the Creative Commons Attribution Non-Commercial No Derivative License. This license allows others to download this work and share them with others as long as they mention the author and link back to the author, but they can’t change them in any way or use them commercially.
Resource Identifier:
M39-00360 ( USFLDC DOI )
m39.360 ( USFLDC Handle )

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Full Text
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Preferencia en el comportamiento de dispersin del agut Centro Americano (Dasyprocta punctata)
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Preference on the scatter-hoarding behavior of the Central American Agouti (Dasyprocta punctata)
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Dasyprocta punctata is a scatter hoarding rodent commonly found in the lowland rainforests of Costa Rica. Its method of seed dispersal consists of carrying seeds from the ground below trees and storing each
individual seed in small caches for consumption in times of food scarcity (Jansen et al. 2002). For this reason, D. punctata plays an important role in seedling recruitment and forest composition (Herrera and Pellmyr 2002). The purpose of this study was to determine the role preference played on the scatterhoarding behavior of D. punctata. Three species of seeds (Panopsis suaveolens, Persea americana, and Inga punctata) were offered at the Finca Ecolgica in the Monteverde region of Costa Rica to observe the role of preference. A total of 420 seeds were presented to D. punctata at the site over a two-week period; data were collected on what behaviors were performed on the seeds. Results showed significant preference for different behavior treatments of seeds (Chi- squared = 7.11, p = 0.05), in addition to significant preference for caching seeds in different microhabitats (Chi squared = 26.3, p = 0.05).
Dasyprocta punctata es un roedor dispersor y acaparador que se encuentra comnmente en los bosques lluviosos de la bajura de Costa Rica. Su mtodo de dispersin de semillas consiste en trasladar las semillas del sitio y almacenarlas individualmente en reservas pequeas para el consumo en tiempos de escasez de alimento (Jansen et al. 2002). D. punctata juega un papel importante en el reclutamiento de plntulas y en la composicin del bosque (Herrera and Pellmyr 2002). El propsito de este estudio fue determinar el papel de la preferencia en la conducta de dispersin y acaparamiento de D. punctata. Un estudio se realiz en la Finca Ecolgica en la regin de Monteverde de Costa Rica para observar el papel de la preferencia entre tres especies de semillas: Panopsis suaveolens, Persea americana e Inga punctata. Un total de 420 semillas fue presentado a D. punctata in situ en un perodo de dos semanas; se hicieron observaciones sobre el comportamiento de D. punctata en la manipulacin de las semillas. Los resultados mostraron preferencias significativas para diferentes tratamientos de semillas (Chi- squared = 7,11, p = 0.05), adems de una preferencia significativa para guardar las semillas con respecto a los microhbitats diferentes (Chi- squared = 26.3, p = 0.05).
546
Text in English.
650
Central American agouti
Rodents--Behavior
Costa Rica--Puntarenas--Monteverde Zone--Cerro Plano
4
Pizote Centroamericano
Roedores--Comportamiento
Costa Rica--Puntarenas--Zona de Monteverde--Cerro Plano
653
Tropical Ecology Spring 2005
Ecologa Tropical Primavera 2005
655
Reports
720
CIEE
773
t Monteverde Institute : Tropical Ecology
856
u http://digital.lib.usf.edu/?m39.360



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