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Decomposing drivers in avian insectivory [Elektronski vir] : large-scale effects of climate, habitat and bird diversitySchillé, Laura ...Aim Climate is a major driver of large-scale variability in biodiversity, as a likely result of more intense biotic interactions under warmer conditions. This idea fuelled decades of research on ... plant-herbivore interactions, but much less is known about higher-level trophic interactions. We addressed this research gap by characterizing both bird diversity and avian predation along a climatic gradient at the European scale. Location Europe. Taxon Insectivorous birds and pedunculate oaks. Methods We deployed plasticine caterpillars in 138 oak trees in 47 sites along a 19° latitudinal gradient in Europe to quantify bird insectivory through predation attempts. In addition, we used passive acoustic monitoring to (i) characterize the acoustic diversity of surrounding soundscapes; (ii) approximate bird abundance and activity through passive acoustic recordings; and (iii) infer both taxonomic and functional diversity of insectivorous birds from recordings. Results The functional diversity of insectivorous birds increased with warmer climates. Bird predation increased with forest cover and bird acoustic activity but decreased with mean annual temperature and functional richness of insectivorous birds. Contrary to our predictions, climatic clines in bird predation attempts were not directly mediated by changes in insectivorous bird diversity or acoustic activity, but climate and habitat still had independent effects on predation attempts. Main Conclusions Our study supports the hypothesis of an increase in the diversity of insectivorous birds towards warmer climates but refutes the idea that an increase in diversity would lead to more predation and advocates for better accounting for activity and abundance of insectivorous birds when studying the large-scale variation in insect-tr ee interactions.Source: Journal of biogeography [Elektronski vir]. - ISSN 1365-2699 (Vol. 51, iss. 6, 2024, str. 1079-1094)Type of material - e-articlePublish date - 2024Language - englishCOBISS.SI-ID - 184137987
Author
Schillé, Laura |
Valdés-Correcher, Elena |
Archaux, Frédéric |
Balacenoiu, Flavius |
Chor Bjørn, Mona |
Bogdziewicz, Michal |
Boivin, Thomas |
Branco, Manuela |
Damestoy, Thomas |
De Groot, Maarten, entomolog |
Kavčič, Andreja, biologinja
Topics
akustična raznolikost |
podnebni gradient |
funkcionalna raznolikost |
žužkojede ptice |
gosenice |
plenilska funkcija |
entomologija |
acoustic diversity |
climatic gradient |
functional diversity |
insectivorous birds |
plasticine caterpillars |
predation function
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Schillé, Laura | |
Valdés-Correcher, Elena | |
Archaux, Frédéric | |
Balacenoiu, Flavius | |
Chor Bjørn, Mona | |
Bogdziewicz, Michal | |
Boivin, Thomas | |
Branco, Manuela | |
Damestoy, Thomas | |
De Groot, Maarten, entomolog | 29092 |
Kavčič, Andreja, biologinja | 33222 |
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