Research@StAndrews
 
The University of St Andrews

Research@StAndrews:FullText >
University of St Andrews Research >
University of St Andrews Research >
University of St Andrews Research >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10023/1082
This item has been viewed 13 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
StephensonMatthiopoulosHarwood2007-authorversion.pdf157.37 kBAdobe PDFView/Open
Title: Influence of the physical environment and conspecific aggression on the spatial arrangement of breeding grey seals
Authors: Harris, Catriona M
Matthiopoulos, Jason
Harwood, John
Keywords: Generalized additive models
GIS
Habitat suitability
Individual-based model
Pupping site selection
Spatial and temporal simulation modelling
Halichoerus-grypus
Site fidelity
North-Rona
Relating poulations
Landscape patterns
Models
Scotland
Distributions
Availability
QL Zoology
QH301 Biology
Issue Date: Dec-2007
Citation: Harris , C M , Matthiopoulos , J & Harwood , J 2007 , ' Influence of the physical environment and conspecific aggression on the spatial arrangement of breeding grey seals ' Ecological Informatics , vol 2 , no. 4 , pp. 308-317 .
Abstract: Understanding the habitat requirements of a species for breeding is essential for its conservation, particularly if the availability of suitable habitat is a limiting factor for population growth. This is postulated to be the case for grey seals, one of the more abundant marine apex predators in northern European waters. In common with similar studies that have investigated the habitat preferences of breeding grey seals, we use abiotic (topographical, climatological) attributes but, unlike previous work, we also incorporate behavioural variables, particularly the occurrence of aggressive interactions between females and the presence of neighbouring seals. We used two Generalized Additive Models (GAM) in a sequential and iterative fashion. The first model links the occurrence of aggression at particular points in the colony to local topography derived from a Geographical Information System (GIS), presence of neighbouring seal pups and the day of the breeding season. The output of this GAM is used as one of the explanatory variables in a GAM of daily variation in the spatial distribution of births. Although proximity of a birth site to a water source and the presence of neighbouring seal pups both had significant influences on the distribution of newborn pups over time and space, at the scale of the study site it was found that simple rules could predict pup distribution more efficiently than a complex individual-based simulation model. (c) 2007 Elsevier B.V. All rights reserved.
Version: Postprint
Status: Peer reviewed
URI: http://hdl.handle.net/10023/1082
DOI: http://dx.doi.org/10.1016/j.ecoinf.2007.09.001
ISSN: 1574-9541
Type: Journal article
Rights: This is an author version of the article. The published version, (c)2010 Elsevier is available from http://www.sciencedirect.com
Appears in Collections:University of St Andrews Research
Biology Research



This item is protected by original copyright

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

DSpace Software Copyright © 2002-2012  Duraspace - Feedback
For help contact: Digital-Repository@st-andrews.ac.uk | Copyright for this page belongs to St Andrews University Library | Terms and Conditions (Cookies)