Latitudinal gradient in avian insectivory: complementary effects of climate, habitat and bird diversity
Research output: Working paper › Preprint › Research
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Latitudinal gradient in avian insectivory : complementary effects of climate, habitat and bird diversity. / Schillé, Laura; Valdés-Correcher, Elena; Archaux, Frédéric; Bălăcenoiu, Flavius; Bjørn, Mona Chor; Bogdziewicz, Michal; Boivin, Thomas; Branco, Manuela; Damestoy, Thomas; Groot, Maarten de; Dobrosavljević, Jovan; Duduman, Mihai-Leonard; Dulaurent, Anne-Maïmiti; Green, Samantha; Grünwald, Jan; Eötvös, Csaba Béla; Faticov, Maria; Fernandez-Conradi, Pilar; Flury, Elisabeth; Funosas, David; Galmán, Andrea; Gossner, Martin M.; Gripenberg, Sofia; Grosu, Lucian; Hagge, Jonas; Hampe, Arndt; Harvey, Deborah; Houston, Rick; Isenmann, Rita; Kavčič, Andreja; Kozlov, Mikhail V.; Lanta, Vojtech; Tilly, Bénédicte Le; Vaamonde, Carlos Lopez; Mallick, Soumen; Mäntylä, Elina; Mårell, Anders; Milanović, Slobodan; Molnár, Márton; Moreira, Xoaquín; Moser, Valentin; Mrazova, Anna; Musolin, Dmitrii L.; Perot, Thomas; Piotti, Andrea; Popova, Anna V.; Prinzing, Andreas; Pukinskaya, Ludmila; Sallé, Aurélien; Sam, Katerina; Sedikhin, Nickolay V.; Shabarova, Tanja; Tack, Ayco; Thomas, Rebecca; Thrikkadeeri, Karthik; Toma, Dragoș; Vaicaityte, Grete; Halder, Inge van; Varela, Zulema; Barbaro, Luc; Castagneyrol, Bastien.
bioRxiv, 2023.Research output: Working paper › Preprint › Research
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TY - UNPB
T1 - Latitudinal gradient in avian insectivory
T2 - complementary effects of climate, habitat and bird diversity
AU - Schillé, Laura
AU - Valdés-Correcher, Elena
AU - Archaux, Frédéric
AU - Bălăcenoiu, Flavius
AU - Bjørn, Mona Chor
AU - Bogdziewicz, Michal
AU - Boivin, Thomas
AU - Branco, Manuela
AU - Damestoy, Thomas
AU - Groot, Maarten de
AU - Dobrosavljević, Jovan
AU - Duduman, Mihai-Leonard
AU - Dulaurent, Anne-Maïmiti
AU - Green, Samantha
AU - Grünwald, Jan
AU - Eötvös, Csaba Béla
AU - Faticov, Maria
AU - Fernandez-Conradi, Pilar
AU - Flury, Elisabeth
AU - Funosas, David
AU - Galmán, Andrea
AU - Gossner, Martin M.
AU - Gripenberg, Sofia
AU - Grosu, Lucian
AU - Hagge, Jonas
AU - Hampe, Arndt
AU - Harvey, Deborah
AU - Houston, Rick
AU - Isenmann, Rita
AU - Kavčič, Andreja
AU - Kozlov, Mikhail V.
AU - Lanta, Vojtech
AU - Tilly, Bénédicte Le
AU - Vaamonde, Carlos Lopez
AU - Mallick, Soumen
AU - Mäntylä, Elina
AU - Mårell, Anders
AU - Milanović, Slobodan
AU - Molnár, Márton
AU - Moreira, Xoaquín
AU - Moser, Valentin
AU - Mrazova, Anna
AU - Musolin, Dmitrii L.
AU - Perot, Thomas
AU - Piotti, Andrea
AU - Popova, Anna V.
AU - Prinzing, Andreas
AU - Pukinskaya, Ludmila
AU - Sallé, Aurélien
AU - Sam, Katerina
AU - Sedikhin, Nickolay V.
AU - Shabarova, Tanja
AU - Tack, Ayco
AU - Thomas, Rebecca
AU - Thrikkadeeri, Karthik
AU - Toma, Dragoș
AU - Vaicaityte, Grete
AU - Halder, Inge van
AU - Varela, Zulema
AU - Barbaro, Luc
AU - Castagneyrol, Bastien
PY - 2023
Y1 - 2023
N2 - Aim: According to the Latitudinal Biotic Interaction Hypothesis (LBIH), the general increase in biodiversity towards lower latitudes can be partially explained by an increase in the intensity of biotic interactions. While LBIH received some support for plant-herbivores interactions, much less is known about how higher trophic levels may contribute to shape biotic interactions across latitudinal gradients. We hypothesized that the diversity of insectivorous birds increases towards lower latitude, leading to higher predation rates on insect herbivores.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; and (ii) infer both taxonomic and functional diversity of insectivorous birds from recordings.Results: The functional diversity of insectivorous birds increased towards lower latitude. Bird predation increased with latitude, forest cover and bird acoustic diversity but decreased with mean annual temperature and functional richness of insectivorous birds. Contrary to our predictions, latitudinal clines in bird predation attempts were not directly mediated by changes in insectivorous bird diversity or acoustic diversity, but latitude and habitat still had independent effects on predation attempts.Main conclusions: Our study does not fully support the predictions of the LBIH of more biotic interactions southwards and advocates for better accounting for activity and abundance of insectivorous birds when studying the large-scale variation in insect-tree interactions.
AB - Aim: According to the Latitudinal Biotic Interaction Hypothesis (LBIH), the general increase in biodiversity towards lower latitudes can be partially explained by an increase in the intensity of biotic interactions. While LBIH received some support for plant-herbivores interactions, much less is known about how higher trophic levels may contribute to shape biotic interactions across latitudinal gradients. We hypothesized that the diversity of insectivorous birds increases towards lower latitude, leading to higher predation rates on insect herbivores.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; and (ii) infer both taxonomic and functional diversity of insectivorous birds from recordings.Results: The functional diversity of insectivorous birds increased towards lower latitude. Bird predation increased with latitude, forest cover and bird acoustic diversity but decreased with mean annual temperature and functional richness of insectivorous birds. Contrary to our predictions, latitudinal clines in bird predation attempts were not directly mediated by changes in insectivorous bird diversity or acoustic diversity, but latitude and habitat still had independent effects on predation attempts.Main conclusions: Our study does not fully support the predictions of the LBIH of more biotic interactions southwards and advocates for better accounting for activity and abundance of insectivorous birds when studying the large-scale variation in insect-tree interactions.
U2 - 10.1101/2023.01.19.524212
DO - 10.1101/2023.01.19.524212
M3 - Preprint
BT - Latitudinal gradient in avian insectivory
PB - bioRxiv
ER -
ID: 356975347