English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/62250
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Behavioral states help translate dispersal movements into spatial distribution patterns of floaters

AuthorsDelgado, María del Mar ; Penteriani, Vincenzo
Issue Date2008
PublisherUniversity of Chicago Press
CitationAmerican Naturalist 172: 475- 485 (2008)
AbstractWithin the field of spatial ecology, it is important to study animal movements in order to better understand population dynamics. Dispersal is a nonlinear process through which different behavioral mechanisms could affect movement patterns. One of the most common approaches to analyzing the trajectories of organisms within patches is to use random-walk models to describe movement features. These models express individual movements within a specific area in terms of random-walk parameters in an effort to relate movement patterns to the distributions of organisms in space. However, only using the movement trajectories of individuals to predict the spatial spread of animal populations may not fit the complex distribution of individuals across heterogeneous environments. When we empirically tested the results from a random-walk model (a residence index) used to predict the spatial equilibrium distribution of individuals, we found that the index severely underestimated the spatial spread of dispersing individuals. We believe this is because random-walk models only account for the effects of environmental conditions on individual movements, completely overlooking the crucial influence of behavior changes over time. In the future, both aspects should be accounted for when predicting general rules of (meta)population abundance, distribution, and dynamics from patterns of animal movements. © 2008 by The University of Chicago. All rights reserved.
URIhttp://hdl.handle.net/10261/62250
DOI10.1086/590964
Identifiersdoi: 10.1086/590964
issn: 0003-0147
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
590964.pdf411,85 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.