971 resultados para AMERICA LEPTODACTYLIDAE


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Spanish version available at the Library

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The Brasilia Declaration, adopted in 2007 at the second Regional Intergovernmental Conference on Ageing in Latin America and the Caribbean: towards a society for all ages and rights-based social protection and ratified in ECLAC resolution 644(XXXII) of 2008, called on participating governments to work towards adopting a international convention regarding the rights of older persons (Article 24). It also established a mandate for a Human Rights Council Special Rapporteur who would be responsible for promoting and protecting the rights of older persons (Article 25).Three meetings were held during the past biennium pursuant to that commitment. The first and second meetings took place, respectively, in Rio de Janeiro, Brazil (2008) and in Buenos Aires, Argentina (2009). At the third meeting, held in Santiago (Chile), on 5-6 October 2009, participating countries requested the Secretariat of the United Nations Economic Commission for Latin America (ECLAC) to prepare "a proposal for a strategy on how to follow up article 24 and 25 of the Brasilia Declaration." This proposal should include the "minimum content necessary in an international convention on the rights of older persons from the Latin American and Caribbean perspective."In response to this request, this document first presents a general overview of existing human rights standards, both at the international and at the regional levels, that are relevant to the promotion and the protection of the rights of older persons. It then provides the arguments that, from a Latin American and Caribbean perspective, justify the adoption of an international convention regarding the rights of older persons, as well as the minimum contents that this convention should include. The document finally presents a proposed strategy to move towards the adoption of an international convention in this realm from a Latin American and Caribbean perspective.

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Foreword by Alicia Bárcena

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Spanish and chinese versions available at the Library

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Includes bibliography

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To evaluate the effects of distinct management of the matrix in which forest fragments are found upon plant populations thriving in forest remnants in south Brazil, we assessed the conservation status of populations of four woody species (Campomanesia rhombea, Diospyros incontans, Myrciaria cuspidata and Sebastiania commersoniana) through analyses of size structure. Analyzes were carried out at two scales. At a local scale, we consider populations in fragments surrounded by pastures or eucalypts forest plantations, and at a regional scale we also consider larger forest tracts taken as reference areas (Rio Grande do Sul Forest Inventory databank). Population size structures were summarized using the symmetry of height distributions. Small individual size classes prevailed at the local scale in fragments surrounded by eucalypts plantations, whereas in areas exposed to cattle ranching, populations of the same species consistently lack small individuals. At the regional scale, populations in fragments surrounded by pastures presented greater skewness (prevalence of small plants) than populations in reference areas, while populations surrounded by eucalypts plantations presented intermediate skewness. These results reinforce the notion that plantations have a higher conservation value for forest ecosystems than other commercial land uses, like cattle ranching. © 2010 Springer Science+Business Media B.V.