Predation on Live and Artificial Insect Prey Shows Different Global Latitudinal Patterns DOI Creative Commons
Elena L. Zvereva, Benjamin Adroit, Tommi Andersson

et al.

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(11)

Published: Aug. 16, 2024

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

Language: Английский

Predation on Live and Artificial Insect Prey Shows Different Global Latitudinal Patterns DOI Creative Commons
Elena L. Zvereva, Benjamin Adroit, Tommi Andersson

et al.

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(11)

Published: Aug. 16, 2024

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

Language: Английский

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