A1 Journal article (refereed)
Biotic homogenisation in bird communities leads to large‐scale changes in species associations (2022)

Rigal, S., Devictor, V., Gaüzère, P., Kéfi, S., Forsman, J. T., Kajanus, M. H., Mönkkönen, M., & Dakos, V. (2022). Biotic homogenisation in bird communities leads to large‐scale changes in species associations. Oikos, 2022(3), Article e08756. https://doi.org/10.1111/oik.08756

JYU authors or editors

Publication details

All authors or editors: Rigal, Stanislas; Devictor, Vincent; Gaüzère, Pierre; Kéfi, Sonia; Forsman, Jukka T.; Kajanus, Mira H.; Mönkkönen, Mikko; Dakos, Vasilis

Journal or series: Oikos

ISSN: 0030-1299

eISSN: 1600-0706

Publication year: 2022

Publication date: 14/12/2021

Volume: 2022

Issue number: 3

Article number: e08756

Publisher: Wiley-Blackwell

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1111/oik.08756

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78984

Web address of parallel published publication (pre-print): https://www.biorxiv.org/content/10.1101/2020.11.13.380956v2

Abstract

The impact of global change on biodiversity is commonly assessed in terms of changes in species distributions, community richness and community composition. Whether and how much associations between species are also changing is much less documented. In this study, we quantify changes in large-scale patterns of species associations in bird communities in relation to changes in species composition. We use network approaches to build three community-aggregated indices reflecting complementary aspects of species association networks. We characterise the spatio–temporal dynamics of these indices using a large-scale and high-resolution dataset of bird co-abundances of 109 species monitored for 17 years (2001–2017) from 1969 sites across France. We finally test whether spatial and temporal changes in species association networks are related to species homogenisation estimated as the spatio–temporal dynamics of species turnover (β-diversity) and community generalism (community generalisation index). The consistency of these relationships is tested across three main habitats, namely woodland, grassland and human settlements. We document a directional change in association-based indices in response to modifications in species turnover and community generalism in space and time. Weaker associations and sparser networks were related to lower spatial species turnover and higher community generalism, suggesting an overlooked aspect of biotic homogenisation affecting species associations and may also have an impact on species interactions. We report that this overall pattern is not constant across habitats, with opposite relationships between biotic homogenisation and change in species association networks in urban versus forest communities suggesting distinct homogenisation processes. Although species associations contain only partial signatures of species interactions, our study highlights that biotic homogenisation translates to finer changes in community structure by affecting the number, strength and type of species associations.

Keywords: avifauna; bird populations; biodiversity; ecological networks

Free keywords: avifauna; community; homogenisation; interaction network; species association; β-diversity

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

JUFO rating: 2