Ecological barriers mediate spatiotemporal shifts of bird communities at a continental scale

This study was supported by the Swiss National Science Foundation (grant P2BEP3_195232) and by the Academy of Finland (project 323527 and project 329251).Species' range shifts and local extinctions caused by climate change lead to community composition changes. At large spatial scales, ecological barriers, such as biome boundaries, coastlines, and elevation, can influence a community's ability to shift in response to climate change. Yet, ecological barriers are rarely considered in climate change studies, potentially hindering predictions of biodiversity shifts. We used data from two consecutive European breeding bird atlases to calculate the geographic distance and direction between communities in the 1980s and their compositional best match in the 2010s and modeled their response to barriers. The ecological barriers affected both the distance and direction of bird community composition shifts, with coastlines and elevation having the strongest influence. Our results underscore the relevance of combining ecological barriers and community shift projections for identifying the forces hindering community adjustments under global change. Notably, due to (macro)ecological barriers, communities are not able to track their climatic niches, which may lead to drastic changes, and potential losses, in community compositions in the future.Publisher PDFPeer reviewe

Vogelmonitoring in Deutschland : Spezialisten trafen sich zur Klausurtagung in der Staatlichen Vogelschutzwarte Steckby

Dr. Kai Gedeon, Stefan Fisch, Dr. Christoph Sudfeld

El siglo médico Tomo 37 Nº1896 (27/04/1890)

Encuadernada con el el año 1866, el tomo II del año 1865 de la revista Crónica médica Descripción basada en : Año IX, n. 418 ( en. 1862) Fusión de : Gaceta médica (Madrid), ISSN 0214-4247 ; y de : Boletín de medicina, cirugía y farmacia, ISSN 0214-4255. Absorbió a : El genio médico, ISSN 0214-428X. Continuada por : Semana médica española, ISSN 1131-0049.v 30 cm 16 páginas