Space use during the breeding season of three different forest-dwelling owl species in an area of sympatry: a case study of male hunting home-range sizes and overlaps

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102768" target="_blank" >RIV/60460709:41210/25:102768 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s10336-025-02278-0" target="_blank" >https://doi.org/10.1007/s10336-025-02278-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10336-025-02278-0" target="_blank" >10.1007/s10336-025-02278-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Space use during the breeding season of three different forest-dwelling owl species in an area of sympatry: a case study of male hunting home-range sizes and overlaps

Popis výsledku v původním jazyce

Heterospecific interactions amongst sympatric animals can significantly influence their spatiotemporal behaviours. In birds of prey, ecological relationships such as predation risk or competition for space and/or food may induce mutual spatial avoidance, affecting home ranges’ distribution and sizes. However, studies simultaneously monitoring multiple sympatric owls or diurnal raptors are exceptional. Therefore, we studied four sympatric owls to obtain findings on spatial arrangements of nocturnal/hunting home ranges during the breeding season. Individual males from three of the four studied species (Eurasian Pygmy Owl [Glaucidium passerinum], Boreal Owl [Aegolius funereus], and Tawny Owl [Strix aluco]) were radio-tracked in an area co-inhabited by an apex intraguild predator, Eurasian Eagle-Owl (Bubo bubo). The findings revealed a 78% overlap in the hunting ranges of Boreal and Eurasian Pygmy Owls; in contrast, their ranges overlapped only by 25% and 15%, respectively, with that of the Tawny Owl. Further, the Eurasian Eagle-Owl nest site was located within the hunting ranges of both smaller owl males, unlike the Tawny Owl’s home range, which maintained a respectful distance. The Boreal and Eurasian Pygmy Owl males avoided hunting in the Tawny Owl’s home range. In contrast, Tawny Owl male avoided Eurasian Eagle-Owls’ territory, indicating that the subordinate owl species can use the presence of an apex predator to protect themselves from medium-intraguild enemies. Although tentative due to the small sample size, this study offered unique insights into the spatial behaviours of multiple sympatric species. We encourage researchers to implement similar studies, which may provide essential information for conserving threatened species in a rapidly changing environment.

Název v anglickém jazyce

Space use during the breeding season of three different forest-dwelling owl species in an area of sympatry: a case study of male hunting home-range sizes and overlaps

Popis výsledku anglicky

Heterospecific interactions amongst sympatric animals can significantly influence their spatiotemporal behaviours. In birds of prey, ecological relationships such as predation risk or competition for space and/or food may induce mutual spatial avoidance, affecting home ranges’ distribution and sizes. However, studies simultaneously monitoring multiple sympatric owls or diurnal raptors are exceptional. Therefore, we studied four sympatric owls to obtain findings on spatial arrangements of nocturnal/hunting home ranges during the breeding season. Individual males from three of the four studied species (Eurasian Pygmy Owl [Glaucidium passerinum], Boreal Owl [Aegolius funereus], and Tawny Owl [Strix aluco]) were radio-tracked in an area co-inhabited by an apex intraguild predator, Eurasian Eagle-Owl (Bubo bubo). The findings revealed a 78% overlap in the hunting ranges of Boreal and Eurasian Pygmy Owls; in contrast, their ranges overlapped only by 25% and 15%, respectively, with that of the Tawny Owl. Further, the Eurasian Eagle-Owl nest site was located within the hunting ranges of both smaller owl males, unlike the Tawny Owl’s home range, which maintained a respectful distance. The Boreal and Eurasian Pygmy Owl males avoided hunting in the Tawny Owl’s home range. In contrast, Tawny Owl male avoided Eurasian Eagle-Owls’ territory, indicating that the subordinate owl species can use the presence of an apex predator to protect themselves from medium-intraguild enemies. Although tentative due to the small sample size, this study offered unique insights into the spatial behaviours of multiple sympatric species. We encourage researchers to implement similar studies, which may provide essential information for conserving threatened species in a rapidly changing environment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Ornithology

ISSN

0021-8375

e-ISSN

2193-7206

Svazek periodika

166

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

1099-1103

Kód UT WoS článku

001462497400001

EID výsledku v databázi Scopus

2-s2.0-105002172158