Abstract
Purpose: Most of the agricultural landscape in Europe, and elsewhere, consists of mosaics with scattered fragments of semi-natural habitat like small forest fragments. Mutual interactions between forest fragments and agricultural areas influence ecosystem processes such as nutrient cycling, a process strongly mediated by the macrodetritivore community, which is however, poorly studied. We investigated macrodetritivore distribution patterns at local and landscape-level and used a key functional trait (desiccation resistance) to gain mechanistic insights of the putative drivers. Methods: Macrodetritivores were sampled in forest edges-centres of 224 European forest fragments across 14 landscapes opposing in land use intensity. We used a multilevel analysis of variance to assess the relative contribution of different spatial scales in explaining activity-density and Shannon-diversity of woodlice and millipedes, together with a model-based analysis of the multivariate activity-density data testing the effect on species composition. Secondly, we tested if desiccation resistance of macrodetritivores varied across communities at different spatial scales using linear mixed effect models. Results: Forest edge-centre and landscape use intensity determined activity-density and community composition of macrodetritivores in forest fragments, while fragment characteristics like size and continuity were relatively unimportant. Forest edges and higher intensity landscapes supported higher activity-density of macrodetritivores and determined species composition. Forest edges sustained woodlouse communities dominated by more drought tolerant species. Conclusions: Landscape use intensity and forest edges are main drivers in macrodetritivore distribution in forest fragments with desiccation resistance a good predictor of macrodetritivore distribution. Key functional traits can help us to predict changes in community structure in changing landscapes.
Original language | English |
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Pages (from-to) | 407-421 |
Number of pages | 15 |
Journal | Landscape Ecology |
Volume | 33 |
Issue number | 3 |
Early online date | 6 Jan 2018 |
DOIs | |
Publication status | Published - Mar 2018 |
Funding
Acknowledgements This research was funded by the ERA-Net BiodivERsA project smallFOREST, with the national funders ANR (France), MINECO (Spain), FORMAS (Sweden), ETAG (Estonia), DFG (Germany), BELSPO (Belgium) and DFG (Germany) part of the 2011 BiodivERsA call for research proposals. P.D.S. and W.P. each hold a doctoral fellowship of the Research Foundation-Flanders (FWO). The research of K.V. is supported by the ERC Consolidator Grant 614839—PASTFORWARD. D.B. and L.B. are supported by the FWO research network EVENET. Many thanks to Gert Arijs, Kent Hansson, Marco Langer, Vincent Le Roux, Jessica Lindgren, Matthias Reiche, Sabine Sigfridsson and Rieneke Vanhulle for help during field sampling.
Funders | Funder number |
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European Resuscitation Council | 614839 |
Deutsche Forschungsgemeinschaft | |
Agence Nationale de la Recherche | |
Svenska Forskningsrådet Formas | |
Eesti Teadusagentuur | |
Belgian Federal Science Policy Office | |
Fonds Wetenschappelijk Onderzoek | |
Ministerio de Economía y Competitividad |
Keywords
- Forest edges
- Landscape use intensity
- Litter dwelling soil fauna
- Millipedes
- Nutrient cycling
- Woodlice