@article{SteinCoulibalyBalimaetal.2020,
  author    = {Stein, Katharina and Coulibaly, Drissa and Balima, Larba Hubert and Goetze, Dethardt and Linsenmair, Karl Eduard and Porembski, Stefan and Stenchly, Kathrin and Theodorou, Panagiotis},
  title     = {Plant-pollinator networks in savannas of Burkina Faso, West Africa},
  series = {Diversity},
  volume    = {13},
  journal   = {Diversity},
  number    = {1},
  issn      = {1424-2818},
  doi       = {10.3390/d13010001},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-220157},
  year      = {2020},
  abstract  = {West African savannas are severely threatened with intensified land use and increasing degradation. Bees are important for terrestrial biodiversity as they provide native plant species with pollination services. However, little information is available regarding their mutualistic interactions with woody plant species. In the first network study from sub-Saharan West Africa, we investigated the effects of land-use intensity and climatic seasonality on plant-bee communities and their interaction networks. In total, we recorded 5686 interactions between 53 flowering woody plant species and 100 bee species. Bee-species richness and the number of interactions were higher in the low compared to medium and high land-use intensity sites. Bee- and plant-species richness and the number of interactions were higher in the dry compared to the rainy season. Plant-bee visitation networks were not strongly affected by land-use intensity; however, climatic seasonality had a strong effect on network architecture. Null-model corrected connectance and nestedness were higher in the dry compared to the rainy season. In addition, network specialization and null-model corrected modularity were lower in the dry compared to the rainy season. Our results suggest that in our study region, seasonal effects on mutualistic network architecture are more pronounced compared to land-use change effects. Nonetheless, the decrease in bee-species richness and the number of plant-bee interactions with an increase in land-use intensity highlights the importance of savanna conservation for maintaining bee diversity and the concomitant provision of ecosystem services.},
  language  = {en}
}
@article{GamezViruesPerovićGossneretal.2015,
  author    = {G{\´a}mez-Viru{\´e}s, Sagrario and Perović, David J. and Gossner, Martin M. and B{\"o}rschig, Carmen and Bl{\"u}thgen, Nico and de Jong, Heike and Simons, Nadja K. and Klein, Alexandra-Maria and Krauss, Jochen and Maier, Gwen and Scherber, Christoph and Steckel, Juliane and Rothenw{\"o}hrer, Christoph and Steffan-Dewenter, Ingolf and Weiner, Christiane N. and Weisser, Wolfgang and Werner, Michael and Tscharntke, Teja and Westphal, Catrin},
  title     = {Landscape simplification filters species traits and drives biotic homogenization},
  series = {Nature Communications},
  volume    = {6},
  journal   = {Nature Communications},
  number    = {8568},
  doi       = {10.1038/ncomms9568},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-141925},
  year      = {2015},
  abstract  = {Biodiversity loss can affect the viability of ecosystems by decreasing the ability of communities to respond to environmental change and disturbances. Agricultural intensification is a major driver of biodiversity loss and has multiple components operating at different spatial scales: from in-field management intensity to landscape-scale simplification. Here we show that landscape-level effects dominate functional community composition and can even buffer the effects of in-field management intensification on functional homogenization, and that animal communities in real-world managed landscapes show a unified response (across orders and guilds) to both landscape-scale simplification and in-field intensification. Adults and larvae with specialized feeding habits, species with shorter activity periods and relatively small body sizes are selected against in simplified landscapes with intense in-field management. Our results demonstrate that the diversity of land cover types at the landscape scale is critical for maintaining communities, which are functionally diverse, even in landscapes where in-field management intensity is high.},
  language  = {en}
}