Predation on Live and Artificial Insect Prey Shows Different Global Latitudinal Patterns

ABSTRACT Aim Long‐standing theory predicts that the intensity of biotic interactions increases from high to low latitudes. Studies addressing geographic variation in predation on insect prey have often relied on prey models, which lack many characteristics of live prey. Our goals were to explore global latitudinal patterns of predator attack rates on standardised live insect prey and to compare the patterns in predation on live insects with those on plasticine prey models. Location Global forested areas. Time Period 2021–2023. Major Taxa Arthropods, birds. Methods We measured predation rates in 43 forested locations distributed across five continents from 34.1° S to 69.5° N latitude. At each location, we exposed 20 sets of three bait types, one set per tree. Each set included three live fly larvae (maggots), three live fly puparia and three plasticine models of the puparia. We used glue rings to isolate half of the sets from non‐flying predators. Results Arthropod attack rates on plasticine prey decreased linearly from low to high latitudes, whereas attack rates on maggots had a U shaped distribution, with the lowest predation rates at temperate latitudes and the highest rates at tropical and boreal latitudes. This difference emerged from intensive predator attacks on live maggots, but not on plasticine models, in boreal sites. Site‐specific attack rates of arthropod predators on live and plasticine prey were not correlated. In contrast, bird attack rates on live maggots and plasticine models were positively correlated, but did not show significant latitudinal changes. Main Conclusions Latitudinal patterns in predation differ between major groups of predators and between types of prey. Poleward decreases in both arthropod and combined arthropod and bird predation on plasticine models do not mirror patterns of predation on our live prey, the latter likely reflecting real patterns of predation risk better than do patterns of attack on artificial prey.

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Publication Details

Journal
Global Ecology and Biogeography
Published
2024-08-16
DOI
https://doi.org/10.1111/geb.13899
Citations
12
Primary Topic
Fire effects on ecosystems
Type
article
Field-Weighted Citation Impact
3.39

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article

Predation on Live and Artificial Insect Prey Shows Different Global Latitudinal Patterns

Isabelle Leite de Holanda Silva, Anna Popova, Emilio Pagani‐Núñez, Kateřina Sam et al.
12 citations
Global Ecology and Biogeography
Fire effects on ecosystems
3.39
article

Predation on Live and Artificial Insect Prey Shows Different Global Latitudinal Patterns

Isabelle Leite de Holanda Silva, Anna Popova, Emilio Pagani‐Núñez, Kateřina Sam, Vitali Zverev, Jory Griffith, Olivia Rahn, Sofia Branco, Giancarlo M. Chiarenza, Ek del‐Val, Angela T. Moles, M. Juhani Koistinen, Maxim Zolotarev, Natalia A. Zubrii, Oksana Y. Kruglova, Robert Tropek, Petr Klimeš, Satu Kumpula, Yixuan Hong, Bastien Castagneyrol, Elena L. Zvereva, Benjamin Adroit, Mikhail V. Kozlov, Cheng Wenda, Seppo Rytkönen, Tommi Andersson, Jan Filip, Paula Lopezosa, Akihiro Nakamura, Mercy Murkwe, Wesley Dáttilo, Alexey Reshchikov, Anne Muola, Martí March‐Salas, Gabriella J. Kietzka, Anna L. Hargreaves, Robert J. Marquis, Juan Antonio Hernández‐Agüero, Yuri M. Marusik, Antonio Rodriguez‐Campbell, Guorui Xu, Yu Zeng, Antigoni Sounapoglou, Craig R. A. Barnett, Cameron Olson
article en
12 citations

Abstract

ABSTRACT Aim Long‐standing theory predicts that the intensity of biotic interactions increases from high to low latitudes. Studies addressing geographic variation in predation on insect prey have often relied on prey models, which lack many characteristics of live prey. Our goals were to explore global latitudinal patterns of predator attack rates on standardised live insect prey and to compare the patterns in predation on live insects with those on plasticine prey models. Location Global forested areas. Time Period 2021–2023. Major Taxa Arthropods, birds. Methods We measured predation rates in 43 forested locations distributed across five continents from 34.1° S to 69.5° N latitude. At each location, we exposed 20 sets of three bait types, one set per tree. Each set included three live fly larvae (maggots), three live fly puparia and three plasticine models of the puparia. We used glue rings to isolate half of the sets from non‐flying predators. Results Arthropod attack rates on plasticine prey decreased linearly from low to high latitudes, whereas attack rates on maggots had a U shaped distribution, with the lowest predation rates at temperate latitudes and the highest rates at tropical and boreal latitudes. This difference emerged from intensive predator attacks on live maggots, but not on plasticine models, in boreal sites. Site‐specific attack rates of arthropod predators on live and plasticine prey were not correlated. In contrast, bird attack rates on live maggots and plasticine models were positively correlated, but did not show significant latitudinal changes. Main Conclusions Latitudinal patterns in predation differ between major groups of predators and between types of prey. Poleward decreases in both arthropod and combined arthropod and bird predation on plasticine models do not mirror patterns of predation on our live prey, the latter likely reflecting real patterns of predation risk better than do patterns of attack on artificial prey.

Global Ecology and BiogeographyVol. 33(11)
Goethe University Frankfurt (DE), Northern (Arctic) Federal University (RU), CEA CESTA (FR), Centre National de la Recherche Scientifique (FR), University of Alicante (ES), Russian Academy of Sciences (RU), University of Lisbon (PT), University of Turku (FI), Sun Yat-sen University (CN), Sonoma State University (US), Altai State University (RU), Chinese Academy of Sciences (CN), Université d'Avignon et des Pays de Vaucluse (FR), Czech Academy of Sciences (CZ), University of Missouri–St. Louis (US), Charles University (CZ), Aix-Marseille Université (FR), Kyoto University (JP), Universidade Federal de Pernambuco (BR), Edinburgh Napier University (GB), Stellenbosch University (ZA), University of Bamenda (CM), Xishuangbanna Tropical Botanical Garden (CN), Whitney Museum of American Art (US), Swedish Museum of Natural History (SE), Senckenberg - Leibniz Institution for Biodiversity and Earth System Research (DE), Belarusian State University (BY), University of South Bohemia in České Budějovice (CZ), UNSW Sydney (AU), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR), Institute of Biological Problems of the North (RU), Institute of Entomology (CZ), Institute of Plant and Animal Ecology (RU), UMR BIOdiversity, GEnes & Communities (FR), Norwegian Institute of Bioeconomy Research (NO), Severtsov Institute of Ecology and Evolution (RU), Instituto de Ecología (MX), Environmental Earth Sciences (AU), Czech Academy of Sciences, Biology Centre (CZ), Institut de Recherche pour le Développement (FR), Instituto de Investigación en Cambio Global, McGill University (CA), Xi’an Jiaotong-Liverpool University (CN), Universidade Nova de Lisboa (PT), Vrije Universiteit Amsterdam (NL), University of Hong Kong (HK), Universidad Nacional Autónoma de México (MX), University of Oulu (FI)
McGill University, National Natural Science Foundation of China, Grantová Agentura České Republiky, Chinese Academy of Sciences, Carl Tryggers Stiftelse för Vetenskaplig Forskning, Mitacs, Ministério da Ciência, Tecnologia e Ensino Superior, Ministry of Science and Higher Education of the Russian Federation, Natural Sciences and Engineering Research Council of Canada, Fundação para a Ciência e a Tecnologia, Biotieteiden ja Ympäristön Tutkimuksen Toimikunta
Life in Land
Openalex Percentile: Top 7%
Fire effects on ecosystems
3.39
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