Publication_Frenzel_ etal_ 2016_BiologicalIndicators 0 4008

Projekt
Department BZF
Beschreibung
Mark Frenzel, Jeroen Everaars, Oliver Schweiger (2016) - Bird communities in agricultural landscapes: What are the currentdrivers of temporal trends?. Ecological Indicators 65 (2016) 113–121 http://dx.doi.org/10.1016/j.ecolind.2015.11.020

Abstract: Bird populations are declining in agricultural landscapes, which is ongoing for decades now. With stan-dardized breeding bird observation data of five years within 2001–2014 from six sites in Central Germanywe investigated whether trends in bird abundance are reflected by trends in species richness and whetherthese trends depend on the landscape context. We further analyzed whether trends and their dependen-cies on the landscape context differ among species groups according to their particular traits. For most ofthe groups (farmland birds, large birds, resident birds, short distance migrators, insectivores, granivoresand birds of prey) we found declining trends in abundance. However, these trends were not reflected byspecies richness. In contrast to our expectations, high amounts of semi-natural habitats in the landscapedid not buffer the overall negative trends. Surprisingly, bird abundance declined most in landscapes char-acterized by larger ranges in altitude and initially highest bird abundance in 2001. We conclude that flatlandscapes in Central Germany have been utilized with high intensity already for a long time and theysimply maintained their already low bird abundance. On the other hand, a recent increase in agriculturalintensity in landscapes with marked altitudinal reliefs, and presumably less usability and productivity,causes the drastic declines in bird abundances. Since these strong declines are not related to habitat loss,we assume that changes in the management of agricultural fields are responsible.
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Metadaten Kataloge
Dublin Core
URI
http://www.ufz.de/record/dmp/archive/4008
Thema
Farmland birds
Land-use change
Species traits
Biodiversity declines
Terrain analysis
Geltungsbereich
Saxony-Anhalt; TERENO sites Wanzleben, Harsleben, Siptenfelde, Greifenhagen, Friedeburg, Schafstädt; years 2001, 2009, 2012, 2013, 2014
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Urheber
Frenzel, Mark
Herausgeber
Helmholtz-Zentrum für Umweltforschung
Rechteinhaber
Journal Ecological Indicators for printed version
Kontakt
Mark Frenzel (mark.frenzel@ufz.de)
Zeitpunkt oder -bereich der Erzeugung der Daten
2001 - 2014
Sprache des Inhalts
Englisch
Zugriffsrechte
beschränkter Zugriff