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Evaluating the spatiotemporal indicators of the population decline of a threatened large forest grouseČas, Miran ; Kobler, Andrej ; De Groot, MaartenMany wildlife populations are declining due to anthropologic and environmental pressures. Indicators can facilitate detection of and reaction to population declines. We tested spatial population ... pattern variables as indicators for the future fate of capercaillie populations in Slovenia. This population was surveyed from 1979 to 1983, 1998 to 2000, and 2008 to 2011. We tested the following indicators of spatial population patterns: the proportion of occupied leks in the neighbourhood of each lek, the distance to the nth nearest occupied lek, the distance to the centre of the cluster and the distance to the closest neighbouring cluster. The AUC and conditional and marginal R2 were used to evaluate the strength of the indicators. There was a steep decline in the number of leks in the Dinaric Mountains during the period 1980%2010, while the number of leks in the Eastern Slovenian Alps and Julian Alps decreased until 2000 and then stabilized. There was an increase in the distance to the nearest occupied leks over the years, but there were differences in this indicator between the clusters. A combination of the distance to the fourth nearest occupied lek and the occupancy of the first nine leks best predicted the future of a lek, showing that the indicators used in the study can be used to predict the future fate of a lek. Our results can help guide future conservation and management decisions to conserve capercaille populations.Vir: European journal of wildlife research. - ISSN 1612-4642 (Vol. 63, iss. 3, 2017, article 45)Vrsta gradiva - članek, sestavni delLeto - 2017Jezik - angleškiCOBISS.SI-ID - 4756902
Avtor
Čas, Miran |
Kobler, Andrej |
De Groot, Maarten
Teme
kazalnik izumiranja populacije |
prostorski vzorec pojavljanja populacije |
razširjenost |
analiza točkovnega pojavljanja |
divji petelin |
Tetrao urogallus |
osamitev populacije |
population extinction indicator |
spatial population pattern |
point pattern analysis |
Capercaillie |
population isolation |
Tetrao urogallus
Vnos na polico
Trajna povezava
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Faktor vpliva
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Čas, Miran | 08032 |
Kobler, Andrej | 16067 |
De Groot, Maarten | 29092 |
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