Survival chances of ground nests in a meadow habitat: a case study in Vrana Lake Nature Park (Mediterranean region, Croatia)

• Autorzy: Purger J.J. , Muzinic J. , Purger D.
• Języki publikacji: EN

Abstrakty

EN

The number of ground-nesting bird species in meadows, one of the most vulnerable habitats in the ornithological reserve of Vrana Lake Nature Park has decreased in recent decades. Nest survival rates were investigated in meadows and reed beds using nest predation experiments in late March and in May 2005. Predators damaged 18% of the 50 artificial nests placed in the pasture meadow habitat in March and 22% in May. Daily survival rate of nests were found to be similar in March (97%) and May (96%). In May, 64% of 25 nests located in the reed bed were discovered by the predators, with the daily survival rate of nests (90%) being significantly lower than that of nests in the nearby meadow. The results suggest that the reasons for the decreasing number of nesting bird species may be – instead of the pronounced presence and activity of predators in the area – the shrinkage of meadow area, the lack of buffer zone, the proximity of agricultural lands, and disturbance caused by intensive grazing.

Słowa kluczowe

EN

artificial nest; ground nest; predation; survival rate; meadow habitat; bird species; Lake Vrana; Mediterranean region; Vrana Lake Nature Park; Croatia

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2012
• Tom: 60
• Numer: 1
• Opis fizyczny: p.207-212,fig.,ref.

Twórcy

autor

Purger J.J.

• Department of Animal Ecology, Institute of Biology, Faculty of Sciences, University of Pecs, Ifjusag utja 6, 7624 Pecs, Hungary

autor

Muzinic J.

autor

Purger D.

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