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You searched for: Journal name Emu Remove constraint Journal name: Emu Subject term Argentina Remove constraint Subject term: Argentina Subject term agricultural land Remove constraint Subject term: agricultural land
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1. 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

2. Barn Swallows keep expanding their breeding range in South America

Author:
Juan Manuel Grande; Miguel A. Santillán; Paula M. Orozco; María Soledad Liébana; Marcos Matías Reyes; Maximiliano Adrián Galmes; Joaquín Ceregheti
Source:
Emu 2015 v.115 no.3 pp. 256-260
ISSN:
1448-5540
Subject:
Hirundo rustica; Prosopis caldenia; agricultural land; breeding; forests; habitats; nesting sites; nests; roads; wetlands; Argentina; North America
Abstract:
... Barn Swallows (Hirundo rustica) breeding in North America traditionally wintered in South America. In the 1980s a small breeding population was found in coastal Argentina and since then the breeding range of Barn Swallows in the country has expanded. Our aims here were to examine the north-western limits of the breeding range of Barn Swallows in Argentina, and to analyse the factors that may deter ...
DOI:
10.1071/MU14097

3. Population size, provisioning frequency, flock size and foraging range at the largest known colony of Psittaciformes: the Burrowing Parrots of the north-eastern Patagonian coastal cliffs

Author:
Juan F. Masello; María Luján Pagnossin; Christina Sommer; Petra Quillfeldt
Source:
Emu 2006 v.106 no.1 pp. 69-79
ISSN:
1448-5540
Subject:
Psittaciformes; adults; aerial surveys; agricultural land; anthropogenic activities; breeding season; burrows; cliffs; flocks; foraging; habitats; monitoring; nesting; nestlings; nests; parrots; population size; reproductive success; sandstone; vegetation; Argentina
Abstract:
... We here describe the largest colony of Burrowing Parrots (Cyanoliseus patagonus), located in Patagonia, Argentina. Counts during the 2001–02 breeding season showed that the colony extended along 9 km of a sandstone cliff facing the Altantic Ocean, in the province of Río Negro, Patagonia, Argentina, and contained 51412 burrows, an estimated 37527 of which were active. To our knowledge, this is larg ...
DOI:
10.1071/MU04047