Sustainability of tropical dry forests: Two case studies in southeastern and central Brazil

Espírito-Santo, Mário M.; Sevilha, Anderson Cássio; Anaya, Felisa Cançado; Barbosa, Rômulo Soares; Fernandes, G. Wilson; Sánchez‐Azofeifa, Arturo; Scariot, Aldicìr; Noronha, Sérgio Eustáquio de; Sampaio, Cristina Andrade

doi:10.1016/j.foreco.2009.01.022

Cited by 57 publications

(54 citation statements)

References 22 publications

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“…Ant species richness has usually been positively associated with habitat structure and its association is more pronounced at local scale, mainly at sites with higher resource availability, diversity of microhabitats and a greater number of nesting sites (Ribas et al, 2003;Marques & Del-Claro, 2006;Ribas & Schoereder, 2007;Pacheco & Vasconcelos, 2012;Fagundes et al, 2015). Arboreal ants, however, commonly show a strong territorial behavior (Schoener, 1970;Bernstein, 1975;Espírito-Santo et al, 2009;Ribeiro et al, 2013a;Dáttilo et al, 2015), and changes in vegetation structure due to ecological succession may result in an increase of aggression and monopolization of space, leading a shift in the species composition.…”

Section: Research Article -Antsmentioning

confidence: 99%

Composition and Richness of Arboreal ants in Fragments of Brazilian Caatinga: Effects of Secondary Succession

et al. 2016

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Ecological succession is a complex processes involving changes in the structure of plant community and it is an important factor determining the structure of arboreal ants assemblages, but little is known about the effects of succession on ant assemblages in regions of Tropical Dry Forests (TDFs), such as the Brazilian Caatinga. The aim of this study was to investigate the effects of ecological succession on the richness and species composition of arboreal ants in fragments of Caatinga, testing the following hypothesis: i) the richness of arboreal ants increases along a gradient of forest succession, in response to tree richness and/or density; ii) species composition of arboreal ants differs among stages of forest succession due to differences in vegetation structure in theses stages. This study was conducted in 15 plots distributed in three areas with different stages of secondary succession (early, intermediate and late). Tree density and richness were used as surrogate of vegetation structure. Ants were sampled using the technique of beating the foliage and baited pitfall traps, where five trees were sampled per plot, totaling 75 individual trees sampled. We sampled 37 species of ants, distributed in 16 genera and five subfamilies. Ant richness differed among stages of succession and seasons, with higher number of species in the late succession and rainy period, also increasing with tree richness and density. Besides, there was a distinct composition of ant species among stages of succession and seasons. Results obtained in this study reinforce the importance of using ants as environmental bioindicators, since the sensitivity to environmental variations of this group enables us to differentiate early and late successional stages of forest succession in Caatinga environment.

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Section: Research Article -Antsmentioning

confidence: 99%

Composition and Richness of Arboreal ants in Fragments of Brazilian Caatinga: Effects of Secondary Succession

et al. 2016

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“…Seasonally dry tropical forests (hereafter SDTFs) present a circum-Amazonian distribution in South America and have been the main focus of many recent biogeographic and conservation studies (e.g., Prado & Gibbs, 1993;Espírito-Santo et al, 2009;Pennington et al, 2000Pennington et al, , 2006Pennington et al, , 2009Zanella, 2010;Werneck, 2011;Werneck et al, 2011;Santos et al, 2012;Arruda et al, 2013;DryFlor, 2016). These forests are usually associated with fertile soils and with climates marked by highly seasonal rainfall with a severe dry season of three to six months, when most of the vegetation is leafless (Pennington et al, 2006;DryFlor, 2016).…”

Section: Introductionmentioning

confidence: 99%

First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species

Vasconcelos

Neto

2018

Pap. Avulsos Zool.

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Abstract. Cerrado dry forest enclaves have been treated as an endemic bird area. In the last years, some avifaunal surveys have been conducted in dry forests on the left bank of the São Francisco River, eastern Brazil. Nevertheless, there is a gap of detailed ornithological surveys in the Cerrado dry forest enclaves on the right bank of this river. Here, we present the first avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River. The study area, named "Curral de Pedras", comprises a dry forest enclave and other associated habitats in central Minas Gerais state, southeastern Brazil. We recorded 172 bird species; nine taxa have their ranges strongly associated to the Caatinga; six present their ranges associated to the Atlantic Forest and one is typical of the Cerrado. Important records are those of Campylopterus calcirupicola, a recently described species associated with dry forests of central Brazil, and Celeus ochraceus, collected in its southernmost range. Furthermore, we obtained specimens that present intermediate phenotypes between the following woodcreeper species: Lepidocolaptes squamatus / L. wagleri and Xiphocolaptes albicollis / X. falcirostris. Those records reinforce the need of further sampling and collecting activities in those dry forest enclaves aiming future researches in taxonomy, geographic variation, and phylogeography.

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“…During this time about 130,000 km 2 of forests were converted into other land uses each year and the data from the past decade showed deforestation rates of 160,000 km 2 .year -1 (CDB 2010). Seasonal forests, also known as dry forests, deciduous or semi-deciduous forests, are often considered the most endangered types of tropical forests because of the widespread fragmentation and area reduction caused by agriculture, logging of selected woods and mining (Janzen 1997;Scariot & Sevilha 2005;Espírito-Santo et al 2009). It is common for seasonal forest to undergo disturbances such as fire and invasive species (Janzen 1997).…”

Section: Introductionmentioning

confidence: 99%

Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in Brazil

2014

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This work describes the woody layer composition and structure in two seasonal forest fragments in the Tocantins river basin and compares them to other remnants of this forest physiognomy in Brazil. The survey was carried out by using 17 plot samples (20 × 50 m) located in Palmeirópolis, state of Tocantins, and in Minaçú, state of Goiás. All woody individuals showing diameters ≥ 5 cm, at 1.30 cm above ground level, were recorded. The higher floristic similarity of these forest remnants compared with other closer seasonal forests did not show a distinct pattern. The floristic composition was more similar to that of a deciduous seasonal forest in the Paranã valley, and more dissimilar to other forests in this same valley. This result and a higher dissimilarity related to the southern forests in Goiás suggest that the forest fragments showed a floristic composition and structure typical of lowland seasonal forests in the Tocantins river basin. The results also indicated that the forest fragments have distinct floristic compositions with a relatively similar structure and diversity. Key words: dry seasonal forests, diversity, composition. ResumoA composição e a estrutura do componente arbóreo foram caracterizadas em dois fragmentos de floresta estacional na bacia do médio rio Tocantins e comparadas com outros remanescentes dessa fitofisionomia em outras regiões do Brasil. Os indivíduos foram amostrados em 17 parcelas de 20 × 50 m, nos municípios de Palmeirópolis (TO) e Minaçú (GO). Em cada parcela foram mensurados todos os indivíduos lenhosos que apresentaram diâmetro igual ou superior a 5 cm, medido a 1,30 m do solo (DAP ≥ 5 cm). A maior similaridade florística desses dois remanescentes com outras florestas estacionais mais próximas não apresentou um padrão claro. A composição florística nos fragmentos estudados foi mais similar a uma floresta estacional decidual no vale do Paranã, embora muito dissimilar em relação à outra floresta decidual nesse mesmo vale. Esse resultado e a maior dissimilaridade em relação às florestas do sul de Goiás sugerem que as atuais florestas apresentaram composição e estrutura características de florestas estacionais de baixa altitude da bacia do médio/alto rio Tocantins. Os resultados também indicam que cada fragmento investigado apresenta uma flora própria, com estrutura e diversidade relativamente similares. Palavras-chave: mata seca, diversidade, composição. Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in BrazilComparações florísticas e estruturais entre comunidades arbóreas de dois fragmentos de florestas estacionais na bacia do rio Tocantins e outros remanescentes desta fisionomia florestal no Brasil

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Sustainability of tropical dry forests: Two case studies in southeastern and central Brazil

Cited by 57 publications

References 22 publications

Composition and Richness of Arboreal ants in Fragments of Brazilian Caatinga: Effects of Secondary Succession

Composition and Richness of Arboreal ants in Fragments of Brazilian Caatinga: Effects of Secondary Succession

First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species

Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in Brazil

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