caa a22 4500 605527180 CHVBK 20210128100807.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10531-014-0836-x doi (NATIONALLICENCE)springer-10.1007/s10531-014-0836-x Interactive effects of habitat fragmentation and microclimate on trap-nesting Hymenoptera and their trophic interactions in small secondary rainforest remnants [Elektronische Daten] [Eva Stangler, Paul Hanson, Ingolf Steffan-Dewenter] The combined effects of habitat fragmentation and climate change on biodiversity and biotic interactions are poorly understood. In the context of ongoing deforestation and agricultural intensification in the tropics secondary rainforest fragments might contribute to biodiversity conservation and mitigation of climate warming. This study investigated the interactive effects of habitat fragmentation and microclimate on the abundance and biotic interactions of trap-nesting bees and wasps in secondary forest fragments in the northwestern lowlands of Costa Rica. Fragment size did not affect hymenopteran abundance, parasitism and mortality rates, but all variables differed between edge and interior locations in the forest fragments. Interactive effects between size and location indicate higher mortality rates at interior locations in larger fragments. Microclimatic differences at edge and interior locations led to significant effects on all tested response variables. Abundance at interior locations was significantly higher with increasing temperatures. Mortality rates at interior location increased at lower mean temperatures, whereas higher temperatures at edges marginally increased mortality rates. Our results indicate that edge effects, mediated by altered microclimatic conditions, significantly change biotic interactions of trap-nesting hymenopterans in small secondary fragments. Springer Science+Business Media Dordrecht, 2014 Area effects nationallicence Edge effects nationallicence Temperature nationallicence Solitary bees and wasps nationallicence Parasitism rate nationallicence Mortality rate nationallicence Stangler Eva Department of Animal Ecology and Tropical Biology, University of Wuerzburg, Biocenter, Am Hubland, 97074, Würzburg, Germany aut Hanson Paul Escuela de Biología, Universidad de Costa Rica, San Pedro de Montes Oca, A.P. 2060, San José, Costa Rica aut Steffan-Dewenter Ingolf Department of Animal Ecology and Tropical Biology, University of Wuerzburg, Biocenter, Am Hubland, 97074, Würzburg, Germany aut Biodiversity and Conservation Springer Netherlands 24/3(2015-03-01), 563-577 0960-3115 24:3<563 2015 24 10531 https://doi.org/10.1007/s10531-014-0836-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10531-014-0836-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stangler Eva Department of Animal Ecology and Tropical Biology, University of Wuerzburg, Biocenter, Am Hubland, 97074, Würzburg, Germany aut NATIONALLICENCE 700 1- Hanson Paul Escuela de Biología, Universidad de Costa Rica, San Pedro de Montes Oca, A.P. 2060, San José, Costa Rica aut NATIONALLICENCE 700 1- Steffan-Dewenter Ingolf Department of Animal Ecology and Tropical Biology, University of Wuerzburg, Biocenter, Am Hubland, 97074, Würzburg, Germany aut NATIONALLICENCE 773 0- Biodiversity and Conservation Springer Netherlands 24/3(2015-03-01), 563-577 0960-3115 24:3<563 2015 24 10531