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dc.contributor.author
Fernandez Duque, Eduardo
dc.contributor.author
Van Der Heide, Griëtte
dc.date.available
2015-10-08T19:09:39Z
dc.date.issued
2013-06-28
dc.identifier.citation
Fernandez Duque, Eduardo; Van Der Heide, Griëtte; Dry season resources and their relationship with owl monkey (Aotus azarae) feeding behavior, demography and life-history; Springer/plenum Publishers; International Journal Of Primatology; 34; 4; 28-6-2013; 752-769
dc.identifier.issn
0164-0291
dc.identifier.uri
http://hdl.handle.net/11336/2425
dc.description.abstract
Limited food resource availability during yearly dry seasons can influence population dynamics and direct life-history evolution. We examined actual food production during two dry seasons and its relationship to feeding, life history, and demography in territorial, monogamous, and pair-living owl monkeys (Aotus azarae azarae).
To quantify food availability in 16.25 ha of gallery forest in the Argentinean Chaco, we collected phenological data, from dry season fruit sources (N=894), twice a month, during July and August of 2008 and 2009. At the same time, we collected feeding data from the four groups (N=1448 h) inhabiting that forest portion. We also examined demographic data on births, natal dispersal, and group size. Our data show that owl monkeys occupy territories, and core areas, that produce food consistently, even during harsh times. Following the 2009 drought, less fruit was available than in 2008, but the 50 % core areas produced fruit amounts comparable to the 80 % territories. Owl monkeys showed dietary flexibility; fruits were the most frequent food item in 2008, whereas all groups increased their consumption of leaves in 2009. Infant production was lower in 2008 than after the drought of 2009. Interbirth intervals between the 2 yr were longer than the mean for the population, and more individuals dispersed in 2008 than in 2009. Our study suggests that owl monkeys occupy territories that provide similar amounts of reliable dry season foods within the core areas. Although access to these core areasmay allow themto overcome severe dry seasons, our findings underscored the difficulties of understanding the potential causal relationships between ecological factors and demographic and life-history parameters.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer/plenum Publishers
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Foraging
dc.subject
Monogamy
dc.subject
Phenology
dc.subject
Reproduction
dc.subject
Resource Availability
dc.subject
Seasonality
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Dry season resources and their relationship with owl monkey (Aotus azarae) feeding behavior, demography and life-history
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
34
dc.journal.number
4
dc.journal.pagination
752-769
dc.journal.pais
Estados Unidos
dc.journal.ciudad
New York
dc.description.fil
Fil: Fernandez Duque, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Centro de Ecologia Aplicada del Litoral (i); Argentina;
dc.description.fil
Fil: Van Der Heide, Griëtte. University Of Texas At Austin; Estados Unidos;
dc.journal.title
International Journal Of Primatology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10764-013-9689-5
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10764-013-9689-5
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