Assessing mammal responses to perturbations in temperate aridlands of Argentina

Tabeni, Solana; Ojeda, Ricardo A.

doi:10.1016/s0140-1963(02)00314-2

Cited by 50 publications

(40 citation statements)

References 26 publications

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“…Em 2013, todos os resultados destas variáveis se aproximaram ao das regiões áridas, com a biomassa vegetal abaixo de 2 Mg • ha -1 (Cowlishaw & Davies, 1997;Hegazy et al, 1998;Houérou, 1997;Abbadi et al, 2002;Enright et al, 2005;Hanafi, 2008;Bisigato et al, 2009;Vilela et al, 2009), com registros da fauna nativa (mastofauna, avifauna e hepertofauna) menores que 10 indivíduos por hectares (Wang et al, 2001;Scott et al, 2005;Ojeda & Tabeni, 2009;Fokidis, 2011;Rodríguez & Ojeda, 2011;McDonald, 2012;Herrmann & Branch, 2013) e índices de diversidade de Shannon menores que 0,3 (Houérou, 1997;Kraaij & Milton, 2006;Chillo & Ojeda, 2012;Sow et al, 2014). Essas tendências dos dados também foram descritas em outras localidades áridas submetidas à perturbação antrópica, à mudança do uso da terra e ao extrativismo (Tabeni & Ojeda, 2003Reij et al, 2005;Sow et al, 2014).…”

Section: Resultados Das Variáveis Ambientais E Humanasunclassified

Resistência social na Caatinga árida: a narrativa de quem ficou no colapso ambiental

Santana

2016

Desenvolv. Meio Ambiente

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Artigo recebido em 19 de outubro de 2015, versão final aceita em 23 de maio de 2016. RESUMO:A região analisada é historicamente um espaço de conflitos e de uma "violência fundadora", situada acima do médio São Francisco, entre as cidades de Ibimirim e Cabrobó (Pernambuco/Brasil). A presença desses conflitos, associada ao colapso ambiental causado pelo neoextrativismo local e ao clima árido, são fortes indícios para influenciarem a dinâmica populacional. Porém, o contrário é observado na região. A manutenção da população na região é corroborada pelo baixo valor de emigração e pelas narrativas. Por isso, variáveis ambientais e sociais foram coletadas e analisadas para avaliar se a ausência de uma dinâmica populacional é motivada por uma resistência social. Assim, o objetivo deste trabalho foi analisar o contexto ambiental e a narrativa de quem ficou no colapso da matéria-prima na Caatinga Árida pós-neo-extrativismo, onde se pôde notar que a manutenção da população na região trata-se de uma expressão da resistência social local, na interface entre parâmetros ambientais e sociais analisados. A preservação da herança familiar (patrimonialismo) foi considerada o principal destaque nas narrativas dos sertanejos.Palavras-chave: mobilização social; desertificação; neoextrativismo. ABSTRACT:The analyzed region is historically a place of conflict and a 'founding violence', situated above São Francisco River, between the cities of Ibimirim and Cabrobó (Pernambuco/Brazil). The presence of those conflicts, associated with the environmental collapse, caused by the new local extractiv and arid climate, are strong evidence to act on population dynamics. However, the opposite is observed in the region. The maintenance of population there is supported by the low value of emigration and by narratives. Therefore, environmental and social variables were collected and analyzed to assess whether a social resistance motivates the lack of population dynamics. The objective of this study was to analyze the environmental context and the narratives of who remained in collapse of raw material in Arid Caatinga post the new extractivism. Where one might note that the maintenance of the population in the region is an expression of local social resistance, on the

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Section: Resultados Das Variáveis Ambientais E Humanasunclassified

Resistência social na Caatinga árida: a narrativa de quem ficou no colapso ambiental

Santana

2016

Desenvolv. Meio Ambiente

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“…Much early work was conducted at one large site (Bock et al, 1984(Bock et al, , 1990Bock and Bock, 1988;Jepson-Innes and Bock, 1989;Jones et al, 2003) but, over the past few years, there has been growing interest in better documenting faunal responses to grazing-induced vegetation changes (Whitford, 1997;James, 2003;Jones et al, 2003;Tabini and Ojeda, 2003). Most such work has focused on mammals and has culminated in a model that predicts how grazing induced vegetation change affects rodent community diversity in arid south-western North America (Jones et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of long-term cattle exclosure on vegetation and rodents at a desertified arid grassland site

Valone

Sauter

2005

Journal of Arid Environments

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“…In the southern marshes (BA and BSA), bordered by the xeric Monte vegetation, we recorded small mammal species (e.g., A. molinae and O. longicaudatus) that were typical of this habitat. These predominantly nocturnal and omnivorous species have been associated with dense plant cover in Monte vegetation (Campos et al 2001;Tabeni and Ojeda 2003;Pardiñas et al 2004). …”

Section: Discussionmentioning

confidence: 99%

Small Mammals Along SW-Atlantic Marshes: Diversity Correlates with Inland Habitats but Abundance Correlates with Marsh Characteristics

et al. 2014

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Tidal marshes are narrow wetlands distributed worldwide between the ocean and a variety of inland-habitats. The high diversity of interacting terrestrial habitats may influence terrestrial species composition and abundance in marshes. We investigated if characteristics of small mammal assemblages inhabiting the South-West-Atlantic (SWA) marshes are influenced by marsh characteristics, or if they vary in relation to changes in the inland biogeographic context. Sampling at five-Spartina marshes across the SWA-coast showed that plant cover, richness and height (ANOVA analysis) and small mammal assemblages (PERMANOVA analysis) differed between habitats (marsh or inland) depending on the site. Generalized Linear Models (GLMs) showed that abundance of small mammals in marshes is related to vegetation cover and diversity. However, its richness was related to the richness of small mammal at the inland habitats. In fact, species present in each marsh were also recorded in adjacent inland habitats. Species composition differed among similar marshes surrounded by different landscapes, while those in the same landscape did not. Consequently, regional abundance of small mammals in SWA-marshes is consistent with ecological sorting of abundance ranges along environmental gradients (e.g., plant-cover and richness). In contrast, landscape composition and configuration strongly affect marsh small mammal species assemblages, even if the marshhabitats are quite similar.

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Assessing mammal responses to perturbations in temperate aridlands of Argentina

Cited by 50 publications

References 26 publications

Resistência social na Caatinga árida: a narrativa de quem ficou no colapso ambiental

Resistência social na Caatinga árida: a narrativa de quem ficou no colapso ambiental

Effects of long-term cattle exclosure on vegetation and rodents at a desertified arid grassland site

Small Mammals Along SW-Atlantic Marshes: Diversity Correlates with Inland Habitats but Abundance Correlates with Marsh Characteristics

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