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You searched for: Author maria Remove constraint Author: maria Journal name Emu Remove constraint Journal name: Emu
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1. Annual variation in laying date and breeding success of Brown Noddies on Aride Island, Seychelles

Author:
Anna Maria Maul,   et al.   ; Jaime A. Ramos; John Bowler; Louisa Wood; Rob Threadgold; Sharon Johnson; Darryl Birch; Susan Walker;     Show all 8 Authors
Source:
Emu 2006 v.106 no.1 pp. 81-86
ISSN:
1448-5540
Subject:
El Nino; La Nina; Sterna; adults; body condition; breeding; chicks; eggs; food availability; hatching date; reproductive performance; reproductive success; Indian Ocean; Seychelles
Abstract:
... We examined annual variation in timing of breeding, productivity, growth-rates of chicks and adult body condition of Brown Noddies (Anous stolidus) on Aride Island, Seychelles, from 1995 to 2002 (8 years), and assessed whether poor breeding success was related to El Niño events. Our results were compared with similar studies on tern species that feed more in inshore waters and with faster chick gr ...
DOI:
10.1071/MU05023

2. Dietary characteristics of Emus (Dromaius novaehollandiae) in semi-arid New South Wales, Australia, and dispersal and germination of ingested seeds

Author:
Maria Calviño-Cancela,   et al.   ; Heath Dunstan; Singarayer K. Florentine; Martin E. Westbrooke; Grant C. Palmer;     Show all 5 Authors
Source:
Emu 2013 v.113 no.2 pp. 168-176
ISSN:
1448-5540
Subject:
Casuarina; Dromaius novaehollandiae; Eremophila glabra; Eremophila longifolia; Nitraria; Santalum acuminatum; autumn; digestive system; emus; feces; fruits; seed germination; seeds; spring; summer; vegetation; winter; zoochory; New South Wales
Abstract:
... The Emu (Dromaius novaehollandiae) eats a wide range of seeds and other plant material but little is known of the seeds eaten and dispersed in arid Australia. This study aimed to determine the species of seed and fruits eaten by Emus through the year and investigate the effect of the passage of seeds through the Emu gut on seed germination. Emu scats were opportunistically collected in all seasons ...
DOI:
10.1071/MU12061

3. Drivers of clutch-size in Fork-tailed Flycatchers (Tyrannus savana) at temperate and tropical latitudes in South America

Author:
Ana Maria Mamani,   et al.   ; Alex E. Jahn; Diego T. Tuero; Vanesa Bejarano; Diego Anibal Masson; Eluney Aguilar;     Show all 6 Authors
Source:
Emu 2014 v.114 no.4 pp. 337-342
ISSN:
1448-5540
Subject:
arthropods; birds; breeding; clutch size; eggs; food availability; geographical variation; grasslands; latitude; life history; nestlings; nests; predation; tropics; Argentina; Bolivia
Abstract:
... Many species of birds exhibit a latitudinal gradient in annual reproductive investment, laying more eggs and producing more nestlings at higher latitudes. However, few studies have evaluated the mechanisms that underlie such patterns and such differences in grassland birds specifically. We monitored nests of Fork-tailed Flycatchers (Tyrannus savana) over two breeding seasons at a tropical site in ...
DOI:
10.1071/MU13084

4. Migration routes and non-breeding areas of Common Terns (Sterna hirundo) from the Azores

Author:
Maria C. Magalhães,   et al.   ; Verónica C. Neves; Cristina P. Nava; Matt Cormons; Esteban Bremer; Gabriel Castresana; Pedro Lima; Severino M. Azevedo Junior; Richard A. Phillips; Ricardo S. Santos;     Show all 10 Authors
Source:
Emu 2015 v.115 no.2 pp. 158-167
ISSN:
1448-5540
Subject:
Sterna hirundo; birds; coasts; females; males; Argentina; Azores; Brazil; Uruguay
Abstract:
... We describe the migration routes and non-breeding areas of Common Terns (Sterna hirundo) from the Azores Archipelago, based on ringing (banding) recoveries and tracking of three birds using geolocators. Over 20 years, there have been 55 transatlantic recoveries of Common Terns from the Azores population: six from Argentina and 49 from Brazil. The three tracked birds migrated south in different mon ...
DOI:
10.1071/MU13112

5. Evidence of an unreported negative effect of fisheries discards on seabirds: death by choking on the Atlantic Midshipman, Porichthys porosissimus, in southern Brazil

Author:
Maria V. Petry,   et al.   ; Victória R. F. Benemann; Lucas Krüger; Fernanda C. L. Valls;     Show all 4 Authors
Source:
Emu 2016 v.116 no.1 pp. 48-51
ISSN:
1448-5540
Subject:
Calonectris diomedea; Porichthys; Puffinus; adverse effects; asphyxia; beaches; death; fisheries; marine environment; monitoring; seabirds; Brazil
Abstract:
... The effects of the fishing industry on the marine environment have been studied and described over the past two decades. Trawl-netting is a common but non-selective method of fishing that often captures non-target specimens of no commercial value that are discarded at sea. We discovered an unreported threat caused by fisheries discards on seabirds attending fishing activities in Brazilian waters: ...
DOI:
10.1071/MU14106

6. Passerine phenology in the largest tropical dry forest of South America: effects of climate and resource availability

Author:
Maria Regina de V. Barbosa; José Maria Cardoso da Silva,   et al.   ; Helder F. P. de Araujo; Arnaldo H. Vieira-Filho; José Alexandre F. Diniz-Filho;     Show all 5 Authors
Source:
Emu 2017 v.117 no.1 pp. 78-91
ISSN:
1448-5540
Subject:
Passeriformes; birds; breeding; breeding season; caatinga; climate; developmental stages; dry forests; humidity; leaves; molting; phenology; rain; tropical dry forests; South America
Abstract:
... In tropical dry areas, rainfall is predicted to be the most important climatic variable influencing bird phenology because it triggers food and foliage production. In addition, because resources are scarce, the moulting and breeding seasons are not expected to overlap. We conducted a 2-year study on the phenology of passerine birds at one site in Caatinga, South America’s largest dry forest region ...
DOI:
10.1080/01584197.2016.1265430

7. Diversification of Petroica robins across the Australo-Pacific region: first insights into the phylogenetic affinities of New Guinea’s highland robin species

Author:
Maria Nandadevi Cortes-Rodriguez,   et al.   ; Anna M. Kearns; Leo Joseph; Aude Thierry; John F. Malloy; Kevin E. Omland;     Show all 6 Authors
Source:
Emu 2019 v.119 no.3 pp. 205-217
ISSN:
1448-5540
Subject:
Petroica; ancestry; highlands; islands; phylogeny; species diversity; sympatry; zoogeography; Australia; New Guinea; New Zealand
Abstract:
... Complex spatial and temporal phylogenetic patterns have emerged among Pacific Island radiations and their Australian and New Guinean congeners. We explore the diversification of Australo-Pacific Petroica robins using the first phylogeny with complete species-level sampling of the genus. In doing so we provide the first assessment of the phylogenetic affinities of two poorly known species with high ...
DOI:
10.1080/01584197.2018.1498744