Stronger negative species interactions in the tropics supported by a global analysis of nest predation in songbirds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73616317" target="_blank" >RIV/61989592:15310/22:73616317 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10446290

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14321" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14321</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.14321" target="_blank" >10.1111/jbi.14321</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stronger negative species interactions in the tropics supported by a global analysis of nest predation in songbirds

Popis výsledku v původním jazyce

Aim: Species interactions are assumed to be stronger closer to the equator. However, numerous studies provided conflicting results and considerable controversy exists concerning the latitudinal patterns in the intensity of biotic interactions. Thus, the question of whether biotic interactions are stronger near the equator remains open. Here, we provide a global evaluation of latitudinal trends in nest predation in songbirds and their explanations. Location: Worldwide. Taxon: Songbirds (Aves: Passeriformes). Methods: We collected published data on nest predation in 1297 populations of 659 species across the globe (124,958 nests). We quantified latitudinal trends in the intensity of nest depredation (daily predation rate, DPR) and in potential demographic impacts of nest depredation (the proportion of nests destroyed by predators). We also quantified the latitudinal trend in the proportion of failed nests destroyed by predators and assessed how nest depredation and latitudinal trends differed across nest types. We aimed at explaining spatial variation in nest predation by productivity and species richness of potential nest predators. Results: All measures of nest predation increased towards the equator and the increase was stronger in the northern hemisphere. Nest predation also increased withtime, and it was higher in open nests than in cavities. Nest predation increased with productivity (indexed by NDVI), independently of latitude. It also increased with species richness of potential nest predators, but this effect was confounded with latitude. Main conclusions: Tropical songbirds faced both higher intensity of nest predation (higher DPR) and more detrimental demographic outcomes of nest depredation (higher proportion of nests lost to predators). Moreover, the proportion of nest failure caused by predators also increased towards the equator. Our results support the view that birds are subject to strong biotic interactions close to the equator. Nest predation increased with productivity and tended to increase with species richness of potential nest predators.

Název v anglickém jazyce

Stronger negative species interactions in the tropics supported by a global analysis of nest predation in songbirds

Popis výsledku anglicky

Aim: Species interactions are assumed to be stronger closer to the equator. However, numerous studies provided conflicting results and considerable controversy exists concerning the latitudinal patterns in the intensity of biotic interactions. Thus, the question of whether biotic interactions are stronger near the equator remains open. Here, we provide a global evaluation of latitudinal trends in nest predation in songbirds and their explanations. Location: Worldwide. Taxon: Songbirds (Aves: Passeriformes). Methods: We collected published data on nest predation in 1297 populations of 659 species across the globe (124,958 nests). We quantified latitudinal trends in the intensity of nest depredation (daily predation rate, DPR) and in potential demographic impacts of nest depredation (the proportion of nests destroyed by predators). We also quantified the latitudinal trend in the proportion of failed nests destroyed by predators and assessed how nest depredation and latitudinal trends differed across nest types. We aimed at explaining spatial variation in nest predation by productivity and species richness of potential nest predators. Results: All measures of nest predation increased towards the equator and the increase was stronger in the northern hemisphere. Nest predation also increased withtime, and it was higher in open nests than in cavities. Nest predation increased with productivity (indexed by NDVI), independently of latitude. It also increased with species richness of potential nest predators, but this effect was confounded with latitude. Main conclusions: Tropical songbirds faced both higher intensity of nest predation (higher DPR) and more detrimental demographic outcomes of nest depredation (higher proportion of nests lost to predators). Moreover, the proportion of nest failure caused by predators also increased towards the equator. Our results support the view that birds are subject to strong biotic interactions close to the equator. Nest predation increased with productivity and tended to increase with species richness of potential nest predators.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10700 - Other natural sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF BIOGEOGRAPHY

ISSN

0305-0270

e-ISSN

1365-2699

Svazek periodika

49

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

511-522

Kód UT WoS článku

000761772800001

EID výsledku v databázi Scopus

2-s2.0-85124768765