Document Detail

Gis analysis of patch use and group cohesiveness of bearded sakis (chiropotes sagulatus) in the upper essequibo conservation concession, guyana.
MedLine Citation:
PMID:  23225269     Owner:  NLM     Status:  Publisher    
This study examines how northern bearded sakis (Chiropotes sagulatus) in Guyana adjust group cohesiveness according to the distribution and quality of food patches. I introduce a GIS based method for quantifying food patch quality and how it relates to bearded saki group spread and group size. While the concept of food patch is central to most models of primate socioecology, defining what constitutes a patch has been notoriously problematic in primate studies. In addition, researchers have struggled to quantify group spread and group cohesiveness. Advances in spatial analysis software in the last decade now allow primate researchers to better quantify these variables. Group spread in bearded sakis was not significantly greater in lower quality patches and sakis were not more spread out during feeding than during other activities. However, the study group was significantly less spread out during social behavior. Bearded saki group size was significantly correlated with both monthly fruit abundance and patch quality. In fact, mean daily patch quality explained ∼40% of the variation in foraging party size. These results suggest that bearded sakis may rely on a highly fluid social structure to mitigate the effects of intragroup feeding competition while living in large groups. Sakis do not adjust group spread on a patch-by-patch basis but rather fission into smaller foraging parties when resources become scarce seasonally and patch quality is low. This study shows that GIS is a powerful tool for modeling the relationship between group cohesiveness and resource quality and distribution. Am J Phys Anthropol, 2012. © 2012 Wiley Periodicals, Inc.
Christopher A Shaffer
Related Documents :
6504949 - Opiate antagonists stereoselectively attenuate the consumption of food but not of water...
7291249 - Opioid modulation of ingestive behavior.
23179109 - Dogs steal in the dark.
7583379 - Selection of foods by broiler chickens following corticosterone administration.
2555029 - Acetylation alters the feeding response to msh and beta-endorphin.
19501769 - Disruption of the behavioral satiety sequence by simmondsin.
25035169 - Exposure assesment of malondialdehyde, 4-hydroxy-2-(e)-nonenal and 4-hydroxy-2-(e)-hexe...
15092349 - Between-species differences in heavy metal levels in four pine diprionids (hymenoptera)...
9808649 - Properties of food folates determined by stability and susceptibility to intestinal pte...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-7
Journal Detail:
Title:  American journal of physical anthropology     Volume:  -     ISSN:  1096-8644     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Department of Anthropology, Sociology and Languages, University of Missouri, St. Louis, St. Louis, MO 63121.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Absence of liver steatosis in HIV-HCV co-infected patients receiving regimens containing tenofovir o...
Next Document:  Years-identification mathematical model of paeonia lactiflora pall. based on the allometric-scaling.