Temporal and Spatial Scales Matter: Circannual Habitat Selection by Bird Communities in Vineyards

Guyot, Claire; Guyot, Claire; Arlettaz, Raphaël; Korner, Pius; Jacot, Alain (2017). Temporal and Spatial Scales Matter: Circannual Habitat Selection by Bird Communities in Vineyards. PLoS ONE, 12(2), e0170176. Public Library of Science 10.1371/journal.pone.0170176

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Vineyards are likely to be regionally important for wildlife, but we lack biodiversity studies in this agroecosystem which is undergoing a rapid management revolution. As vine cultivation is restricted to arid and warm climatic regions, biodiversity-friendly management would promote species typical of southern biomes. Vineyards are often intensively cultivated, mostly surrounded by few natural features and offering a fairly mineral appearance with little ground vegetation cover. Ground vegetation cover and composition may further strongly vary with respect to season, influencing patterns of habitat selection by ecological communities. We investigated season-specific bird-habitat associations to highlight the importance of seminatural habitat features and vineyard ground vegetation cover throughout the year. Given that avian habitat selection varies according to taxa, guilds and spatial scale, we modelled bird-habitat associations in all months at two spatial scales using mixed effects regression models. At the landscape scale, birds were recorded along 10 1-km long transects in Southwestern Switzerland (February 2014 ±January 2015). At the field scale, we compared the characteristics of visited and unvisited vineyard fields (hereafter called parcels). Bird abundance in vineyards tripled in winter compared to summer. Vineyards surrounded by a greater amount of hedges and small woods harboured higher bird abundance, species richness and diversity, especially during the winter season. Regarding ground vegetation, birds showed a season-specific habitat selection pattern, notably a marked preference for ground-vegetated parcels in winter and for intermediate vegetation cover in spring and summer. These season-specific preferences might be related to species-specific life histories: more insectivorous, ground-foraging species occur during the breeding season whereas granivores predominate in winter. These results highlight the importance of investigating habitat selection at different spatial scales and all along the annual cycle in order to draw practical, season-specific management recommendations for promoting avian biodiversity in farmland.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Conservation Biology
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Guyot, Claire; Guyot, Claire; Arlettaz, Raphaël and Jacot, Alain

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Olivier Roth

Date Deposited:

18 Apr 2018 08:25

Last Modified:

18 Apr 2018 08:25

Publisher DOI:

10.1371/journal.pone.0170176

BORIS DOI:

10.7892/boris.110646

URI:

https://boris.unibe.ch/id/eprint/110646

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