Vztah mezi predačním rizikem a prostorovou distribucí tetřívka obecného (Tetrao tetrix) ve vysoce fragmentované krajině: experiment založený na umělých hnízdech

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F04%3A00104743" target="_blank" >RIV/68081766:_____/04:00104743 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The relationship between predation risk and occurrence of black grouse (Tetrao tetrix) in a highly fragmented landscape: an experiment based on artificial nests

Popis výsledku v původním jazyce

We monitored the fate of artificial ground nests in a highly fragmented landscape in the Krušné hory Mts (CZ) that hosts a declining population of the Black Grouse. We evaluated the generality of the "edge effect on nest predation" hypothesis in three dominant grouse habitats. The resulting spatial pattern of nest predation was further compared with the grouse occurrence. Predation on artificial nests was low (17%), and was similar among the three dominant grouse habitats and for edge and interior areas. The results do not support the ecological trap hypothesis, because predation pressure on artificial nests was lower in areas occupied by the grouse. Ground nests placed under a shelter of branches in young forests were more successful than concealed nests in other habitats. Successional changes and maturation of intensively managed forests may result in higher predation rates on natural grouse nests and may contribute to overall population decline of this species.

Název v anglickém jazyce

The relationship between predation risk and occurrence of black grouse (Tetrao tetrix) in a highly fragmented landscape: an experiment based on artificial nests

Popis výsledku anglicky

We monitored the fate of artificial ground nests in a highly fragmented landscape in the Krušné hory Mts (CZ) that hosts a declining population of the Black Grouse. We evaluated the generality of the "edge effect on nest predation" hypothesis in three dominant grouse habitats. The resulting spatial pattern of nest predation was further compared with the grouse occurrence. Predation on artificial nests was low (17%), and was similar among the three dominant grouse habitats and for edge and interior areas. The results do not support the ecological trap hypothesis, because predation pressure on artificial nests was lower in areas occupied by the grouse. Ground nests placed under a shelter of branches in young forests were more successful than concealed nests in other habitats. Successional changes and maturation of intensively managed forests may result in higher predation rates on natural grouse nests and may contribute to overall population decline of this species.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Ecoscience

ISSN

1195-6860

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

7

Strana od-do

421-427

Kód UT WoS článku

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EID výsledku v databázi Scopus

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