Suitability, success and sinks: how do predictions of nesting distributions relate to fitness parameters in high arctic waders?

Details

Serval ID
serval:BIB_46A1DCEEF711
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Suitability, success and sinks: how do predictions of nesting distributions relate to fitness parameters in high arctic waders?
Journal
Diversity and Distributions
Author(s)
Pellissier L., Meltofte H., Hansen J., Schmidt N.M, Tamstorf M.P., Maiorano L., Aastrup P., Olsen J., Guisan A., Wisz M.S.
ISSN
1366-9516
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
19
Number
12
Pages
1496-1505
Language
english
Abstract
AimAlthough habitat suitability maps derived from species distribution models (SDMs) are often assumed to highlight locations that can sustain healthy populations over time, the relationship between suitability scores and fitness parameters has rarely been tested thoroughly.
LocationZackenberg Valley, north-east Greenland.
MethodsUsing 14years of data (1997-2010) representing three wader species (dunlin Calidris alpina, sanderling Calidris alba and ruddy turnstone Arenaria interpres), we tested the relationships between modelled suitability and fitness parameters at nesting locations.
ResultsAmong the three species examined, only the ruddy turnstone exhibited significant relationships between suitability and nest success, but over time rather than space. During years with extensive snow cover in the landscape, the nesting sites of ruddy turnstone occurred in different habitats than were typically used across years. Moreover, in years with extensive snow cover, the ruddy turnstone initiated nests later and suffered from higher egg predation rates.
Main conclusionOur results suggest that SDMs derived from species occurrences that include years of low reproductive success may over-estimate the potential suitable habitat in the landscape. Whenever possible, variation in reproductive success should be considered when building models to inform species' response to environmental change.
species' response to environmental change.
Keywords
Demography, habitat, predation, shorebird, snow, species distribution models
Web of science
Create date
03/05/2013 11:15
Last modification date
20/08/2019 13:52
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