Food web structure and community composition : a comparison across space and time in the North Sea

Show full item record



Permalink

http://hdl.handle.net/10138/339988

Citation

Frelat , R , Kortsch , S , Kroencke , I , Neumann , H , Nordstroem , M C , Olivier , P E N & Sell , A F 2022 , ' Food web structure and community composition : a comparison across space and time in the North Sea ' , Ecography , vol. 2022 , no. 2 . https://doi.org/10.1111/ecog.05945

Title: Food web structure and community composition : a comparison across space and time in the North Sea
Author: Frelat, Romain; Kortsch, Susanne; Kroencke, Ingrid; Neumann, Hermann; Nordstroem, Marie C.; Olivier, Pierre E. N.; Sell, Anne F.
Contributor organization: Department of Agricultural Sciences
Plant Production Sciences
Date: 2022-02
Language: eng
Number of pages: 13
Belongs to series: Ecography
ISSN: 0906-7590
DOI: https://doi.org/10.1111/ecog.05945
URI: http://hdl.handle.net/10138/339988
Abstract: Ecological communities are constantly changing as a response to environmental and anthropogenic pressures. Yet, how changes in community composition influence the structure of food webs over time and space remains elusive. Using ecological network analysis, we assessed how food web structure changed across six distinct areas of the North Sea over a sixteen-year time-period. We used multivariate analyses to disentangle and compare spatio-temporal dynamics in community composition (i.e. changes in species abundances) and food web structure (i.e. changes in network properties). Specifically, we assessed how changes in community composition were reflected in food web structure. Our results revealed a strong spatial coupling between community composition and food web structure along a south-north gradient. However, the temporal covariation between community composition and food web structure depended on the spatial scale. We observed a temporal mismatch at regional scale, but a strong coupling at local scale. In particular, we found that community composition can be influenced by hydro-climatic events over large areas, with diverse effects manifesting in local food web structure. Our proposed methodological framework quantified and compared spatio-temporal changes in community composition and food web structure, providing key information to support effective management strategies aimed at conserving the structure and functioning of ecological communities in times of environmental change.
Subject: community structure
ecological network analysis
food web
marine ecosystems
North Sea
spatio-temporal dynamics
tensor decomposition
trophic interactions
ECOLOGICAL NETWORKS
TEMPORAL VARIABILITY
CLIMATE
MARINE
SCALE
DECOMPOSITIONS
PACKAGE
LINKING
RULES
FISH
1172 Environmental sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
food.pdf 2.073Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record