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You searched for: Journal name Emu Remove constraint Journal name: Emu Subject term Circus Remove constraint Subject term: Circus Subject term Argentina Remove constraint Subject term: Argentina
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1. Habitat relationships of diurnal raptors at local and landscape scales in southern temperate grasslands of Argentina

Author:
Pedrana, Julieta; Isacch, Juan Pablo; Bó, María Susana
Source:
Emu 2008 v.108 no.4 pp. 301-310
ISSN:
0158-4197
Subject:
Circus; agroecosystems; birds of prey; forests; grasses; grasslands; habitat conservation; habitats; landscapes; models; roads; species diversity; surveys; Argentina
Abstract:
... We evaluated the relationship between an assemblage of diurnal raptors and local- and landscape-scale habitat variables in the eastern portion of South America's temperate grasslands in Argentina (37°32'-37°45'S, 57°19'-57°26'W). The landscape is a mosaic of agroecosystems and natural grasslands. Raptor species were sampled using fixed-distance point-counts, from October 2004 to February 2005. We ...
DOI:
10.1071/MU07075

2. Breeding phenology and nest survival of Cinereous (Circus cinereus) and Long-winged (C. buffoni) Harriers in the agricultural landscapes of north-east Patagonia, Argentina

Author:
Luciano N. Segura; María S. Bó
Source:
Emu 2018 v.118 no.2 pp. 218-223
ISSN:
1448-5540
Subject:
Circus; agricultural land; breeding; grasslands; habitats; nesting; nests; phenology; population dynamics; survival rate; Argentina
Abstract:
... We present novel data on breeding ecology and nest survival of the Cinereous (Circus cinereus) and Long-winged (C. buffoni) Harriers in modified grasslands of southern Argentina and we evaluate variations in daily nest survival rates (DSR) in relation to temporal and habitat variables. We studied three mixed nesting colonies embedded in agricultural landscapes along a road. We found that DSR decre ...
DOI:
10.1080/01584197.2017.1404431