Structural aspects and floristic similarity among tropical dry forest fragments with different management histories in northern Minas Gerais, Brazil

In order to produce useful knowledge to the initiatives of protection and management of forest fragments, more specifically for tropical dry forests which suffer with frequent anthropic activities, and due to the lack of specific studies, this article aimed describe the structure and the floristic similarity among three areas of dry forest with different management histories. The study was developed in Capitão Enéas municipality, Northern Minas Gerais, Brazil, where three fragments were evaluated, being one in regeneration for 30 years, another submitted to occasional fire and the third with selective cut in small scale. The sampling was developed through the point quarter method considering all the alive phanerophyte individuals with circumference at breast height (CBH) > 15 cm. In the three fragments, 512 individuals, distributed in 60 species, 47 genera, and 23 families were sampled. The most representative families were Fabaceae (26), Anacardiaceae (4), Bignoniaceae (3) and Combretaceae (3). However, fourteen families were represented by only one species. Only eight species were common to all fragments - Myracrodruon urundeuva standed out with 26.9% of all sampled individuals - while a great number of species were exclusive of each fragment. The floristic and structural differences between the fragments are possibly related to the history and intensity of management in each area besides the topography variations and the presence or absence of limestone outcrops. These results show the importance of each fragment, indicating that the loss of anyone would cause negative impacts on the regional flora and consequently to the associated biodiversity.

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Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil

Anais da Academia Brasileira de Ciências ◽

10.1590/s0001-37652013000200011 ◽

2013 ◽

Vol 85 (2) ◽

pp. 623-634 ◽

Cited By ~ 16

Author(s):

DANIEL M. ARRUDA ◽

WALNIR G. FERREIRA-JUNIOR ◽

REINALDO DUQUE-BRASIL ◽

CARLOS E.R. SCHAEFER

Keyword(s):

Late Quaternary ◽

Sensu Stricto ◽

Minas Gerais ◽

Dry Forest ◽

Floristic Similarity ◽

Humid Forest ◽

Quaternary Climate ◽

Dominant Soil ◽

Minas Gerais State ◽

Semi Arid

The Deciduous Complex that occurs in northern Minas Gerais State, Brazil, raises questions about the floristic affinities of these formations in relation to neighboring phytogeographical domains. Little is known about the identity of the seasonal forest formations that comprise this complex, or about its relationships to abiotic components, such as soils, topography and climate. This study aimed to recognize the patterns of floristic similarity of all studied fragments of dry forest of northern Minas Gerais with soil and climate attributes, based on the available database. Cluster analysis indicated the existence of two floristic groups that had clear associations with either the Koppen's BSh (semi-arid) or Aw (seasonal tropical) climates. Likewise, the subdivisions of these groups showed clear associations with the dominant soil classes in the region. The Red-Yellow Latosol is the dominant soil classes in the BSh climatic domain, seconded by alluvial areas associated with Fluvic Neosols. The Aw domain comprised a much varied set of soils: Nitosols, Argisols, Cambisols and Litholic Neosols, most derived from the Bambuí limestone/slate formation. The ecotonal nature of northern Minas Gerais State provides a complex interaction between the flora of neighboring phytogeographical domains. This, allied to pedogeomorphological factors, allowed a better understanding of the effects of late Quaternary climate changes for the Deciduous Complex evolution. We conclude that the Latosols under present-day semi-arid climates (BSh) are relicts of former wetter climates, during which humid forest (semideciduous) expansion took place. Later, these semideciduous forests were subjected to a much drier climate, when selection for deciduousness led to the present-days Deciduous Complex scenario.

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The Little Fire antWasmannia auropunctata(Roger) (Hymenoptera: Formicidae) as a Diversity Indicator of Ants in Tropical Dry Forest Fragments of Colombia

Environmental Entomology ◽

10.1603/0046-225x-32.3.542 ◽

2003 ◽

Vol 32 (3) ◽

pp. 542-547 ◽

Cited By ~ 30

Author(s):

Inge Armbrecht ◽

Patricia Ulloa-Chacón

Keyword(s):

Tropical Dry Forest ◽

Dry Forest ◽

Forest Fragments

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Distribution of the community of frugivorous birds along a successional gradient in a tropical dry forest in south-western Mexico

Journal of Tropical Ecology ◽

10.1017/s0266467414000601 ◽

2014 ◽

Vol 31 (1) ◽

pp. 57-68 ◽

Cited By ~ 10

Author(s):

R. Carlos Almazán-Núñez ◽

María del Coro Arizmendi ◽

Luis E. Eguiarte ◽

Pablo Corcuera

Keyword(s):

Tropical Dry Forest ◽

Dry Season ◽

Dry Forest ◽

Forest Fragments ◽

Dry Forests ◽

Bird Abundance ◽

Frugivorous Birds ◽

Seed Predators ◽

Western Mexico ◽

Successional Forests

Abstract:Few reports have described the relationship between the distribution of frugivorous birds and vegetation successional changes in dry forests. We assessed the abundance and behaviour of frugivorous birds in early, intermediate and mature dry forests in the Balsas river basin, Guerrero, Mexico. We selected nine dry-forest fragments, three fragments per stage, in these three stages of succession. We analysed the vegetation, estimated bird abundances in 10-min count periods, and recorded the way birds process fruits in circular plots (11–15 plots per fragment, 123 plots in total). Birds were classified as seed predators (15% of all individuals in this study), pulp consumers (15%) or legitimate dispersers (70%). Bird abundance was higher in mature forests in the dry season, while abundance and richness of legitimate dispersers and seed predators were positively related to vegetation complexity. Mature forests have a high vegetation complexity and a high cover ofBurseraspecies that produce fruit during the dry season. During the rains, abundance was higher in early-successional sites when the zoochorous plants produced fruit. Legitimate disperser migrants (i.e.Tyrannus vociferans, Myiarchus cinerascensandM. tyrannulus) were widespread, helping the establishment of zoochorous trees such asBurseraspp. in early-successional forests.

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Seed Banks in Savanna, Forest Fragments, and Continuous Forest Edges Differ in a Tropical Dry Forest in Madagascar

Biotropica ◽

10.1111/btp.12228 ◽

2015 ◽

Vol 47 (4) ◽

pp. 435-440 ◽

Cited By ~ 4

Author(s):

Kim Valenta ◽

Travis S. Steffens ◽

Radoniaina R. Rafaliarison ◽

Colin A. Chapman ◽

Shawn M. Lehman

Keyword(s):

Tropical Dry Forest ◽

Seed Banks ◽

Dry Forest ◽

Forest Fragments ◽

Forest Edges ◽

Continuous Forest

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High density of white-faced capuchins (Cebus capucinus) and habitat quality in the Taboga Forest of Costa Rica

10.1101/692293 ◽

2019 ◽

Author(s):

Elizabeth Tinsley Johnson ◽

Marcela E. Benítez ◽

Alexander Fuentes ◽

Celia R. McLean ◽

Ariek B. Norford ◽

...

Keyword(s):

Costa Rica ◽

Anthropogenic Disturbance ◽

Tropical Dry Forest ◽

Cebus Capucinus ◽

High Density ◽

Dry Forest ◽

Primate Species ◽

Tropical Dry Forests ◽

Forest Fragments ◽

Key Resources

ABSTRACTAcross the globe, primate species and habitats are threatened by human activity. This is especially true for species found in tropical dry forests, which are widely distributed and comprise diverse habitats that remain largely unprotected. Evidence suggests that some primate species endemic to tropical dry forests may be more sensitive to anthropogenic disturbance than others, but our ability to predict primate abundance in the face of disturbance also depends on the specific variables for each site. Here, we consider the factors that explain the high density of white-faced capuchins (Cebus capucinus) found in the Taboga Forest, Costa Rica, a relatively small fragment of tropical dry forest surrounded by agricultural fields. Our analyses suggest that, for capuchins (and potentially for mantled howler monkeys, Alouatta palliata), the size and disturbance of a forest fragment may matter less than the composition and availability of key resources, like above-ground water. Group sightings for both species were higher near permanent water sources, but group sightings did not vary between edge and interior forest. These findings help explain why some primate species can flourish even alongside anthropogenic disturbance and thus carry important implications for conservation efforts. Smaller forest fragments, like Taboga, may be able to support high densities of some species because they provide a mosaic of habitats and key resources that buffer adverse ecological conditions. Future studies will assess the extent to which primates in the Taboga Forest rely on the canals versus the river and will consider how the high density of capuchins in Taboga influences ranging patterns, home range overlap, and the frequency and intensity of intergroup encounters.RESEARCH HIGHLIGHTSHere we introduce a new white-faced capuchin study site in the Taboga Forest, Costa Rica, a fragmented tropical dry forest.Forest fragments like Taboga may support high primate densities because they provide a mosaic of habitats and key resources.

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New Occurrences of Social Wasps (Hymenoptera: Vespidae) in Semideciduous Seasonal Montane Forest and Tropical Dry Forest in Minas Gerais and in the Atlantic Forest in the State of Rio de Janeiro

EntomoBrasilis ◽

10.12741/ebrasilis.v8i1.359 ◽

2015 ◽

Vol 8 (1) ◽

pp. 65-68 ◽

Cited By ~ 1

Author(s):

Marcos Magalhães Souza ◽

Epifânio Porfiro Pires ◽

Rafael Eugênio ◽

Reinildes Silva-Filho

Keyword(s):

Atlantic Forest ◽

Rio De Janeiro ◽

Tropical Dry Forest ◽

Montane Forest ◽

Social Wasps ◽

Minas Gerais ◽

The State ◽

Dry Forest ◽

First Time ◽

New Occurrences

The occurrence of Mischocyttarus consimilis Zikán, Mischocyttarus ignotus Zikán, Mischocyttarus nomurae Richards and Mischocyttarus paraguayensis Zikán for the state of Minas Gerais and Mischocyttarus garbei Zikán for the state of Rio de Janeiro are registered for the first time, collected through active search and attractive traps. Novos Registros de Vespas Sociais (Hymenoptera: Vespidae) em Floresta Estacional Semidecidual Montana e Mata Seca em Minas Gerais e na Mata Atlântica no Estado do Rio de Janeiro Resumo. Neste trabalho é registrado pela primeira vez a ocorrência de Mischocyttarus consimilis Zikán, Mischocyttarus ignotus Zikán, Mischocyttarus nomurae Richards e Mischocyttarus paraguayensis Zikán para o estado de Minas Gerais e Mischocyttarus garbei Zikán para o estado do Rio de Janeiro coletadas por meio de busca ativa e armadilhas atrativas.

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A new species of the armored spider genus Caraimatta Lehtinen, 1981 from Colombia (Araneae: Synspermiata: Tetrablemmidae)

Zootaxa ◽

10.11646/zootaxa.4619.1.8 ◽

2019 ◽

Vol 4619 (1) ◽

pp. 168-176

Author(s):

ANDRÉS F. GARCÍA ◽

LEONEL MARTÍNEZ ◽

DANIELA AHUMADA-C

Keyword(s):

New Species ◽

Tropical Dry Forest ◽

First Record ◽

Identification Key ◽

Dry Forest ◽

Forest Fragments ◽

Male And Female ◽

Males And Females ◽

A New Species

A new species of the armored spider genus Caraimatta Lehtinen, 1981 from Colombian Tropical dry forest fragments is described and illustrated: Caraimatta brescoviti sp. nov. (based on male and female) from Bolivar and Sucre departments, representing the first record of the genus from Colombia. Additionally, photographs of Monoblemma muchmorei Shear, 1978 (other tetrablemmid species previously recorded from the country) are given. A map with the known distribution and an identification key for males and females of the Caraimatta species are also included.

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Small-scale patterning in the recruitment of forest species during succession in tropical dry forest, Mozambique

Vegetatio ◽

10.1007/bf00045655 ◽

1990 ◽

Vol 87 (1) ◽

pp. 51-57 ◽

Cited By ~ 12

Author(s):

B. M. Campbell ◽

T. Lynam ◽

J. C. Hatton

Keyword(s):

Tropical Dry Forest ◽

Dry Forest ◽

Small Scale ◽

Forest Species

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Floristic similarity between adult and saplings strata of Caatinga hyperxerophilous woody vegetation – a Brazilian seasonally tropical dry forest

Revista Forestal Mesoamericana Kurú ◽

10.18845/rfmk.v17i41.5225 ◽

2020 ◽

Vol 17 (41) ◽

pp. 2-15

Author(s):

Marcelo Silva De Lucena ◽

Alan Cauê De Holanda ◽

Allyson Rocha Alves

Keyword(s):

Forest Ecosystems ◽

Tropical Dry Forest ◽

Local Scale ◽

Dry Forest ◽

Floristic Similarity ◽

Species Groups ◽

Local Differentiation ◽

Mechanisms Of Persistence ◽

And Control ◽

Sørensen Index

In the Caatinga, the maintenance of forest ecosystems depends on natural regeneration and several factors that can act in two ways: 1) provide the perpetuation of communities composheed of few species that dominate the adult and saplings strata, resulting in floristic similarities; 2) provide local differentiation between adult and saplings strata. However, these relationships remain poorly understood, as it is not known whether the factors acting on a local scale favor the floristic similarity between the adult and saplings strata or if these patterns are found in conserved and anthropized areas. This work evaluated the floristic similarity between the adult and saplings strata of hyperxerophilous caatinga woody-shrubby vegetation in conserved and anthropized areas. In two areasof conserved and anthropized hyperxerophilous Caatinga, adult and saplings individuals were measured and floristic richness and qualitative floristic similarity were evaluated. The floristic similarity between the adult and saplings strata was statistically compared using the Chao-Sørensen index. In both sites, although there was a large number of species exclusive to the adult stratum, the Chao-Sørensen index indicates high floristic similarity between strata. The analysis of this behavior together with the assessment of community structure shows that few species can be responsible for the key processes that structure and control the main mechanisms of persistence of these ecosystems. This can be attributed to the existence of locally uniform conditions that can define the dominance of adapted species groups.

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