Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
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چکیده
منابع مشابه
Abundance Estimates of the Lesser Rhea Rhea pennata pennata in the Argentine Patagonia: Conservation Implications
The southern subspecies of the lesser rhea is distributed through the Argentine Patagonia and southern Chile. Habitat-loss and poaching were identified as the main threats to lesser rhea populations by the IUCN, which classified the species as “Least concern” in 2014. Although Rhea pennata pennata is among the most conspicuous wildlife across the large Patagonian rangelands, the available estim...
متن کاملGizzard impaction in lesser rhea chicks (Pterocnemia pennata) raised on farms in Patagonia, Argentina.
Impaction of the gizzard was diagnosed in 33 1-to-4-wk-old lesser rhea (Pterocnemia pennata) raised on farms in Patagonia, Argentina. The birds showed anorexia, lethargy, constipation, dehydration, weight loss, and weakness. Necropsy revealed gizzard impaction by fibrous material, sand, rocks, and rubbish. Also, excess fibrous material was observed in the small intestine, and intussusception wa...
متن کاملPhysical characteristics and chemical composition of Lesser Rhea (Pterocnemia pennata) eggs from farmed populations.
1. Eggs from 4 farmed populations of Lesser Rhea (Pterocnemia pennata) were studied to determine their physical and chemical characteristics. 2. None of the physical variables (weight of whole egg, yolk, albumen and shell; proportion of yolk based on egg content; proportion of shell based on entire egg weight; volume; density) showed significant differences between populations. 3. Among chemica...
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Fleming, T.H.. Williams. C.E. Bonaccorso, F.J. & Herbst, L.H. 1985. Phenology, seed dispersal, and colonization in Muntingia calabura, a neotropical pioneer tree. Am. J. Bot. 72: 383-391. Forshaw. J.M. 1989. Parrots of the World, 3rd (revised) ed. Willoughby: Lansdowne Editions. Galetti, M. 1993. Diet of the Scaly-headed Parrot (Pionus marimiliani) in a semideciduous forest in southeastern Braz...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Emu - Austral Ornithology
سال: 2011
ISSN: 0158-4197,1448-5540
DOI: 10.1071/mu11007