Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
A global population redistribution in a migrant shorebird detected with continent-wide qualitative breeding survey data
Rakhimberdiev, E.; Verkuil, Y.I.; Saveliev, A.A.; Vaisanen, R.A.; Karagicheva, J.; Soloviev, M.Y.; Tomkovich, P.S.; Piersma, T. (2011). A global population redistribution in a migrant shorebird detected with continent-wide qualitative breeding survey data. Diversity Distrib. 17(1): 144-151. dx.doi.org/10.1111/j.1472-4642.2010.00715.x
In: Diversity and Distributions. Blackwell: Oxford. ISSN 1366-9516; e-ISSN 1472-4642
|  |
| Trefwoorden |
Philomachus pugnax (Linnaeus, 1758) [WoRMS]; Scolopacidae Vigors, 1825 [WoRMS]
|
| Author keywords |
Arctic; GAM; GEE; migration; Philomachus pugnax; redistribution; ruff;Scolopacidae; waders |
| Auteurs | | Top |
- Rakhimberdiev, E.
- Verkuil, Y.I.
- Saveliev, A.A.
- Vaisanen, R.A.
|
- Karagicheva, J.
- Soloviev, M.Y.
- Tomkovich, P.S.
- Piersma, T.
|
|
| Abstract |
Aim Over the last two decades, thousands of northward migrating ruffs (Philomachus pugnax) have disappeared from western European staging sites. These migratory ruffs were partly temperate breeding birds, but most individuals head towards the Eurasian Arctic tundras where 95% of the global population breeds. This regional decline may represent either: (1) local loss of breeding birds in western Europe, (2) a global decline, (3) shift(s) in distribution or (4) a combination of these.Location Northern Eurasia.Methods To put the declines in western Europe in context, we analysed Arctic monitoring data from the last two decades (Soloviev & Tomkovich, 2009) to detect changes in regional breeding densities across northern Eurasia. We used a novel approach applying generalized additive modelling (GAM) and generalized estimations equations (GEE).Results We show that the global breeding population of ruffs has made a significant eastwards shift into the Asian part of the breeding range. In the European Arctic, ruffs decreased during the last 18 years. At the same time, in western Siberia, ruffs increased. In eastern Siberia, no significant population changes could be detected. These changes corroborate the finding that during northward migration, growing numbers of ruffs avoided staging areas in the Netherlands and Sweden and started migrating along a more easterly route leading into western Siberia.Main conclusions We detected an unprecedented large-scale population redistribution of ruffs and suggest that this is a response to loss of habitat quality at the traditional staging site in the Netherlands. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
