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You searched for: Journal name Emu Remove constraint Journal name: Emu Subject term agricultural land Remove constraint Subject term: agricultural land
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1. Ravens exploit wildlife roadkill and agricultural landscapes but do not affect songbird assemblages

Author:
Matthew W. Fielding; Jessie C. Buettel; Hanh Nguyen; Barry W. Brook
Source:
Emu 2020 v.120 no.1 pp. 11-21
ISSN:
1448-5540
Subject:
Corvus; agricultural land; birds of prey; ecosystems; geographical distribution; habitats; land use change; landscapes; linear models; long term effects; population density; population dynamics; predation; probability; road kills; roadsides; seasonal variation; songbirds; species richness; urban areas; wildlife; zoogeography; Tasmania
Abstract:
... Future land-use change could supplement populations of opportunistic predatory birds, such as corvids, resulting in amplified predation pressure and negative effects on populations of other avian species. We investigated whether Forest Ravens (Corvus tasmanicus) were more likely to be observed in modified landscapes and in areas of higher roadkill density in south-eastern Tasmania. Following this, ...
DOI:
10.1080/01584197.2019.1629820

2. Movements of Australian Wood Ducks (Chenonetta jubata) in an agricultural landscape

Author:
John F. McEvoy; Graham P. Hall; Paul G. McDonald
Source:
Emu 2019 v.119 no.2 pp. 147-156
ISSN:
1448-5540
Subject:
Aix sponsa; agricultural land; farms; foraging; grazing; home range; philopatry; satellites; waterfowl
Abstract:
... We deployed satellite transmitters to provide the first detailed picture of the movement behaviour of Australian Wood Ducks (Chenonetta jubata) through agricultural landscapes where the availability and spatial arrangement of resources are highly predictable. We measured movement distances and home-range areas of individual Australian Wood Ducks and investigated their site fidelity by comparing th ...
DOI:
10.1080/01584197.2018.1562306

3. 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

4. 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

5. Conflict between the Greater Rhea and humans in agricultural landscapes: implications for conservation of the last large herbivore of the southern Pampas

Author:
J. Pedrana; L. Bernad; N. O. Maceira; J. P. Isacch
Source:
Emu 2015 v.115 no.4 pp. 335-344
ISSN:
1448-5540
Subject:
Rhea americana; afforestation; agricultural land; biogeography; grasslands; grazing; habitats; herbivores; hosts; humans; landscapes; models; population; rheas; surface water; surveys; South America
Abstract:
... South-eastern South America (SESA) hosts populations of a number of large herbivores, such as the Greater Rhea (Rhea americana). However, the natural grasslands of SESA have been subject to major transformation through agricultural development, primarily grazing, cropping and afforestation. Here, we assess the relative effects of environmental and anthropogenic predictors on the distribution of Gr ...
DOI:
10.1071/MU15049

6. Reduced rainfall explains avian declines in an unfragmented landscape: incremental steps toward an empty forest?

Author:
Helen C. Stevens; David M. Watson
Source:
Emu 2013 v.113 no.2 pp. 112-121
ISSN:
1448-5540
Subject:
Malurus; agricultural land; arthropods; birds; community structure; drought; food availability; food shortages; forests; habitat destruction; habitat fragmentation; insectivores; intensive farming; landscapes; mountains; rain; temporal variation; Australia
Abstract:
... Declines of formerly widespread bird species are being increasingly reported, with habitat loss, agricultural intensification and reduced rainfall frequently implicated. We report on temporal changes in the occurrence of birds over 21 years within continuous forest in the Warrumbungle Mountains to evaluate the influence of rainfall variability on changes in the abundance of birds and species occur ...
DOI:
10.1071/MU12063

7. Nesting, foraging and aggression of Noisy Miners relative to road edges in an extensive Queensland forest

Author:
Martine Maron
Source:
Emu 2009 v.109 no.1 pp. 75-81
ISSN:
1448-5540
Subject:
Eucalyptus; aggression; agricultural land; birds; canopy; foraging; forests; habitat fragmentation; habitat preferences; landscapes; microhabitats; nesting; nests; woodlands; Queensland
Abstract:
... Increased abundance of Noisy Miners (Manorina melanocephala), a large, aggressive honeyeater, is one of the most important mechanisms through which habitat fragmentation and degradation threaten populations of eastern Australian woodland birds. In inland Queensland, however, Noisy Miners dominate avian assemblages throughout extensive forest areas as well as fragmented landscapes, and our understa ...
DOI:
10.1071/MU08064

8. Contraction in the range of Malleefowl (Leipoa ocellata) in Western Australia: a comparative assessment using presence-only and presence—absence datasets

Author:
Blair C. Parsons; Jeff C. Short; J. Dale Roberts
Source:
Emu 2008 v.108 no.3 pp. 221-231
ISSN:
1448-5540
Subject:
agricultural land; anthropogenic activities; data collection; habitats; landscapes; sheep; surveys; threatened species; Western Australia
Abstract:
... As human impacts on habitat increase in their intensity and scale it is increasingly important that we are able to characterise and monitor changes in the distribution of threatened species. The Malleefowl (Leipoa ocellata) is listed as vulnerable in Australia and the National Recovery Plan suggests that its range has contracted by 45% in Western Australia (WA). We quantified changes in the range ...
DOI:
10.1071/MU08002

9. A hypothesis to explain why the south-western subspecies of the Crested Shrike-tit (Falcunculus frontatus leucogaster) is rare and declining

Author:
Harry F. Recher
Source:
Emu 2006 v.106 no.3 pp. 181-186
ISSN:
1448-5540
Subject:
Eucalyptus; agricultural land; arthropods; bark; canopy; foraging; forests; habitat fragmentation; habitats; home range; indigenous species; leaves; population density; woodlands; Australia
Abstract:
... The south-western subspecies of the Crested Shrike-tit (Falcunculus frontatus leucogaster) is uncommon and declining in abundance. Moreover, populations fail to persist in even large remnants of native vegetation within agricultural areas. Reasons for the scarcity of Shrike-tits in south-western Australia, their decline, and their failure to survive in fragmented habitats are unclear, but are poss ...
DOI:
10.1071/MU05022

10. 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

11. The distribution of Bush Stone-curlews (Burhinus grallarius) in South Australia, with particular reference to Kangaroo Island

Author:
Jody Adam Gates; David C. Paton
Source:
Emu 2005 v.105 no.3 pp. 241-247
ISSN:
1448-5540
Subject:
Burhinus; agricultural land; birds; foxes; indigenous species; islands; landowners; surveys; vegetation; South Australia
Abstract:
... Bush Stone-curlews (Burhinus grallarius) have suffered major declines and a contraction of their range across southern Australia. A total of 414 records of Bush Stone-curlews was obtained for South Australia, from the late 1880s through to 1995. Early records were widespread across the state. By 1940, however, the decline of Stone-curlews was evident, and by 1980 there were few records on the main ...
DOI:
10.1071/MU02029

12. Brood parasitism by Horsfield's Bronze-Cuckoo in a fragmented agricultural landscape in Western Australia

Author:
Michael Brooker; Lesley Brooker
Source:
Emu 2003 v.103 no.4 pp. 357-361
ISSN:
1448-5540
Subject:
Chrysococcyx; Malurus; adults; agricultural land; birds; brood parasitism; females; habitat destruction; habitat fragmentation; hosts; parasites; reproductive success; Western Australia
Abstract:
... The avian brood parasite, Horsfield's Bronze-Cuckoo, Chrysococcyx basalis, showed evidence of area sensitivity in highly fragmented habitat in the central wheatbelt of Western Australia. Adult cuckoos were rarely recorded in small remnants and their breeding success depended on females finding a concentration of their host species in a single large remnant. Thus, the effects of habitat loss and fr ...
DOI:
10.1071/MU02034