The impacts of forest clearance on lizard, small mammal and bird communities in the arid spiny forest, southern Madagascar

Scott, Dawn M.; Brown, Daniel K.; Mahood, Simon P.; Denton, Buck; Silburn, Anastasia; Rakotondraparany, Felix

doi:10.1016/j.biocon.2005.07.014

Cited by 81 publications

(75 citation statements)

References 38 publications

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“…Relações negativas entre fragmentação de habitat e riqueza de espécies foram documentadas para diferentes táxons de vertebrados: mamíferos (Scott et al 2006, Laidlaw 2006, aves (Boulinier et al 2001, Scott et al 2006) e lagartos (Hokit & Branch 2003, Scott et al 2006. Diversos estudos sugerem que anfíbios em paisagens alteradas são suscetíveis a fragmentação de florestas (Laan & Verboom 1990, Fahrig et al 1995, Gibbs 1998, agricultura (Lehtinen et al 1999, Knutson et al 1999, presença de estradas (Findlay & Houlaban 1997) e isolamento de outras poças (Laan & Verboom 1990, Vos e Stumpel 1995.…”

Section: Discussionunclassified

Uso de fragmentos florestais por anuros (Amphibia) de área aberta na região noroeste do Estado de São Paulo

Silva

Rossa‐Feres

2007

Biota Neotrop.

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Landscape arrangement plays a key role in community structure and composition. Our study was based on the hypothesis that forest fragments work as shelter areas for open-area anuran species. Four forest fragments were studied in the municipality of Icém, northwestern São Paulo State; the fragments were 1 to 4 km apart from each other. The anurans were sampled in the fragments by pitfalls, artificial shelters, and active search. Twelve species were registered (48% of the species known for the region); three of these species (Eupemphix nattereri, Leptodactylus podicipinus, and Physalaemus cuvieri) had high abundance (n > 50 individuals). In the pitfalls, 228 individuals belonging to 10 anuran species were captured. The high richness and abundance of specimens captured mean that forest fragments are important components for the anuran communities. Forest fragments in the Icém region can be used by anurans in three non-exclusive ways: i) as shelter areas during the dry season (five species registered); ii) as day shelters during the anuran reproductive season (six species registered in artificial shelters during the day, throughout the rainy season); and iii) as foraging areas (one specimen of Leptodactylus podicipinus found feeding on Blattaria in the fragment FM2). Therefore, the preservation of anuran populations of open habitats depends, to the same extent, on terrestrial habitats, such as forest fragments, and on the ponds where they reproduce. O arranjo da paisagem tem um papel fundamental na estrutura e organização de comunidades. Neste estudo, verificamos a hipótese de que fragmentos florestais funcionariam como áreas de refúgio para espécies de anuros de área aberta. Para isso, foram selecionados quatro fragmentos florestais em Icém, região noroeste do Estado de São Paulo, distanciados entre si de 1 a 4 km. A amostragem dos anuros nos fragmentos foi efetuada com armadilhas de queda (pitfalls), abrigos artificiais e busca ativa. Foram registradas 12 espécies (48% das espécies conhecidas na região de Icém) das quais três, Eupemphix nattereri, Leptodactylus podicipinus e Physalaemus cuvieri, apresentaram alta abundância (n > 50 exemplares). Apenas com as armadilhas de queda foram capturados 228 exemplares de 10 espécies de anuros. A elevada riqueza e a grande abundância de indivíduos capturados comprovam que os fragmentos florestais constituem parte importante do hábitat dessas espécies. Os resultados obtidos indicam que os fragmentos florestais da região estudada podem ser utilizados por anuros de três maneiras não excludentes: i) como áreas de refúgio durante a estação seca (cinco espécies foram registradas durante a estação seca), ii) como abrigos diurnos durante a estação reprodutiva (seis espécies registradas em abrigos artificiais durante o dia, ao longo da estação chuvosa); e iii) como área de forrageio (um exemplar de Leptodactylus podicipinus foi observado alimentando-se de Blattaria no fragmento FM2). Portanto, hábitats terrestres, como fragmentos florestais, são tão importantes para a conservação de...

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Section: Discussionunclassified

Uso de fragmentos florestais por anuros (Amphibia) de área aberta na região noroeste do Estado de São Paulo

Silva

Rossa‐Feres

2007

Biota Neotrop.

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“…Moreover, fragmentation-induced edge effects reduce habitat quality for habitat specialists and enhances habitat quality for generalists (Tattersall et al 2002). Comparing forested and cleared areas in Madagascar, Scott et al (2005) failed to find significant differences in small-mammal species richness and abundance, but found a change in species composition, favouring generalists in cleared areas.…”

Section: Patch and Landscape-scale Effectsmentioning

confidence: 91%

Habitat patch and matrix effects on small-mammal persistence in Amazonian forest fragments

et al. 2012

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Tropical forest mammal assemblages are widely affected by the twin effects of habitat loss and habitat fragmentation. We evaluated the effects of forest patch metrics, habitat structure, age of patch isolation, and landscape metrics on the species richness, abundance and composition of small mammals at 23 forest fragments (ranging in size from 43 to 7,035 ha) in a highly deforested 3,609-km2 landscape of southwestern Brazilian Amazonia. Using pitfall traps and both terrestrial and arboreal traplines of Sherman, Tomahawk and snap traps, we captured a total of 844 individuals over 34,900 trap-nights representing 26 species and 20 genera of small-mammals, including 13 rodent and 13 marsupial species. We also consider the effects of distance from forest edges on species occupancy and abundance. Overall small mammal abundance, species richness and species composition were primarily affected by the quality of the open-habitat matrix of cattle pastures, rather than by patch metrics such as fragment size. Ultimately, small mammal community structure was determined by a combination of both landscape- and patch-scale variables. Knowledge of the anthropogenic factors that govern small mammal community structure is of critical importance for managing the persistence of forest vertebrates in increasingly fragmented neotropical forest landscapes

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“…Randriamiharisoa et al 149 2015; Scott et al 2006 line were recorded. Transects were walked from 08.00-10.00 (n = 22/site) and 15.00-17.00 (n 265 = 16/site); we did not survey during periods of rain or thick cloud cover to minimise variation 266 in weather-related detectability, which reduced the number of appropriate afternoon survey 267 periods.…”

mentioning

confidence: 94%

The impact of natural resource use on bird and reptile communities within multiple-use protected areas: evidence from sub-arid Southern Madagascar

Gardner

Jasper²,

Eonintsoa

et al. 2016

Biodivers Conserv

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The impacts of forest clearance on lizard, small mammal and bird communities in the arid spiny forest, southern Madagascar

Cited by 81 publications

References 38 publications

Uso de fragmentos florestais por anuros (Amphibia) de área aberta na região noroeste do Estado de São Paulo

Uso de fragmentos florestais por anuros (Amphibia) de área aberta na região noroeste do Estado de São Paulo

Habitat patch and matrix effects on small-mammal persistence in Amazonian forest fragments

The impact of natural resource use on bird and reptile communities within multiple-use protected areas: evidence from sub-arid Southern Madagascar

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