World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos One : How Predictability of Feeding Patches Affects Home Range and Foraging Habitat Selection in Avian Social Scavengers, Volume 8

By Rubenstein, Dustin

Click here to view

Book Id: WPLBN0003949704
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos One : How Predictability of Feeding Patches Affects Home Range and Foraging Habitat Selection in Avian Social Scavengers, Volume 8  
Author: Rubenstein, Dustin
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

Citation

APA MLA Chicago

Rubenstein, D. (n.d.). Plos One : How Predictability of Feeding Patches Affects Home Range and Foraging Habitat Selection in Avian Social Scavengers, Volume 8. Retrieved from http://worldebookfair.com/


Description
Description : Feeding stations are commonly used to sustain conservation programs of scavengers but their impact on behaviour is still debated. They increase the temporal and spatial predictability of food resources while scavengers have supposedly evolved to search for unpredictable resources. In the Grands Causses (France), a reintroduced population of Griffon vultures Gyps fulvus can find carcasses at three types of sites : 1. ‘‘light feeding stations’’, where farmers can drop carcasses at their farm (spatially predictable), 2. ‘‘heavy feeding stations’’, where carcasses from nearby farms are concentrated (spatially and temporally predictable) and 3. open grasslands, where resources are randomly distributed (unpredictable). The impact of feeding stations on vulture’s foraging behaviour was investigated using 28 GPS-tracked vultures. The average home range size was maximal in spring (12726752 km2) and minimal in winter (4736237 km2) and was highly variable among individuals. Analyses of home range characteristics and feeding habitat selection via compositional analysis showed that feeding stations were always preferred compared to the rest of the habitat where vultures can find unpredictable resources. Feeding stations were particularly used when resources were scarce (summer) or when flight conditions were poor (winter), limiting long-ranging movements. However, when flight conditions were optimal, home ranges also encompassed large areas of grassland where vultures could find unpredictable resources, suggesting that vultures did not lose their natural ability to forage on unpredictable resources, even when feeding stations were available. However during seasons when food abundance and flight conditions were not limited, vultures seemed to favour light over heavy feeding stations, probably because of the reduced intraspecific competition and a pattern closer to the natural dispersion of resources in the landscape. Light feeding stations are interesting tools for managing food resources, but don’t prevent vultures to feed at other places with possibly high risk of intoxication (poison).

 

Click To View

Additional Books


  • Plos One : the Relative Expression of Mi... (by )
  • Plos One : Uv-green Iridescence Predicts... (by )
  • Plos One : Eplerenone Attenuates Pulse W... (by )
  • Plos One : Seqentropy ; Genome-wide Asse... (by )
  • Plos One : Contribution of Genome-wide A... (by )
  • Plos One : a Simple and Robust Vector-ba... (by )
  • Plos One : Co-operative Additive Effects... (by )
  • Plos One : Cavemen Were Better at Depict... (by )
  • Plos One : Epitope Mapping of Conformati... (by )
  • Plos One : Inappropriate Fiddling with S... (by )
  • Plos One : Mapk Signaling Drives Inflamm... (by )
  • Plos One : Cmv-independent Lysis of Glio... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.