scholarly journals Landscape structure in the northern coast of Paraná state, a hotspot for the brazilian Atlantic Forest conservation

2012 ◽  
Vol 36 (5) ◽  
pp. 961-970 ◽  
Author(s):  
Érico Emed Kauano ◽  
José Marcelo Domingues Torezan ◽  
Fernanda Cristina Gil Cardoso ◽  
Márcia Cristina Mendes Marques
Keyword(s):  
Atlantic Forest ◽  
Landscape Structure ◽  
Secondary Forest ◽  
Secondary Forests ◽  
Northern Coast ◽  
Brazilian Atlantic Forest ◽  
Landscape Matrix ◽  
Serra Do Mar ◽  
Ombrophilous Forest ◽  
Dense Ombrophilous Forest

The "Serra do Mar" region comprises the largest remnant of the Brazilian Atlantic Forest. The coast of the Paraná State is part of the core area of the "Serra do Mar" corridor and where actions for biodiversity conservation must be planned. In this study we aimed at characterizing the landscape structure in the APA-Guaraqueçaba, the largest protected area in this region, in order to assist environmental policies of this region. Based on a supervised classification of a mosaic of LANDSAT-5-TM satellite images (from March 2009), we developed a map (1:75,000 scale) with seven classes of land use and land cover and analyzed the relative quantities of forests and modified areas in slopes and lowlands. The APA-Guaraqueçaba is comprised mainly by the Dense Ombrophilous Forest (68.6% of total area) and secondary forests (9.1%), indicating a forested landscape matrix; anthropogenic and bare soil areas (0.8%) and the Pasture/Grasslands class (4.2%) were less representative. Slopes were less fragmented and more preserved (96.3% of Dense Ombrophilous Forest and secondary forest) than lowlands (71.3%), suggesting that restoration initiatives in the lowlands must be stimulated in this region. We concluded that most of the region sustains well-conserved ecosystems, highlighting the importance of Paraná northern coast for the biodiversity maintenance of the Atlantic Forest.

scholarly journals Genetic and chemodiversity in native populations of Schinus terebinthifolia Raddi along the Brazilian Atlantic forest

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jannaina Velasques ◽  
Bruno do Amaral Crispim ◽  
Adrielle Ayumi de Vasconcelos ◽  
Miklos Maximiliano Bajay ◽  
Claudia Andrea Lima Cardoso ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Atlantic Forest ◽  
Isolation By Distance ◽  
Population Diversity ◽  
Raw Material ◽  
Brazilian Atlantic Forest ◽  
Environmental Similarity ◽  
Chemical Profiles ◽  
Ombrophilous Forest ◽  
Dense Ombrophilous Forest

AbstractSchinus terebinthifolia is a species native to different ecoregions in the Brazilian Atlantic Forest. The plant is listed on the National Relation of Medicinal Plants and recommended as phytomedicine, however while extractive exploitation prevails as the main route of raw material a significant variation of compounds will be detected. To assure the expansion of productive chain it is important to start by studying population diversity and chemical variations. We used SSR markers for studies of genetic structure among populations from dense ombrophilous forest (ES); the deciduous seasonal forest (SM); the savanna (DOU) and the sandbanks (ITA and MSP), and compared the results to their chemical profiles of essential oil. Genetic structure revealed differences among populations and significant fixation rates. Pairwise studies and Bayesian analysis showed similarities between ITA and SM and between DOU and MSP, proving that the patterns of distribution for the species do not follow the isolation by distance or similarity by environmental conditions. The comparison between PCA of genotypes and chemodiversity reinforces the unique profile for each population despite the environmental similarity observed and genetic analysis. The most divergent genotype and chemical group was found at the ombrophilous forest, strong evidence that we should undertake conservation efforts to prevent losses of biodiversity in that area.

scholarly journals Degree of threat to the biological diversity in the Ilha Grande State Park (RJ) and guidelines for conservation

2002 ◽  
Vol 62 (3) ◽  
pp. 375-385 ◽  
Author(s):  
C. J. R. ALHO ◽  
M. SCHNEIDER ◽  
L. A. VASCONCELLOS
Keyword(s):  
Atlantic Forest ◽  
Biological Diversity ◽  
Secondary Forest ◽  
Forest Growth ◽  
Human Occupation ◽  
Herbaceous Vegetation ◽  
Serra Do Mar ◽  
Rocky Outcrops ◽  
Mountain Chain ◽  
Landscape Units

The State Park of Ilha Grande is only a part (5,594 hectares) of the entire island (19,300 hectares) which is located off the south coast of Rio de Janeiro state, between the cities of Mangaratiba and Angra dos Reis. Approximately half of the Park area (47%) is covered by dense Atlantic forest. The secondary forest growth is in a process of ecological succession close to attaining maturity (43%) and the remaining part (10%) is composed of human-altered areas (1%), rocky outcrops with herbaceous vegetation (7%), mangroves and beaches (2%). The fauna is well represented but already shows signs of degradation with introduced species. The analysis of the degree of threat has shown that the dense forest habitat has a relatively stable status of conservation while the secondary forest, the mangrove and the herbaceous vegetation on rocky outcrops (and their fauna) are categorized as vulnerable. The area altered by human occupation is considered threatened. Since the coastal area where Ilha Grande is located is well known for its beautiful scenery (known as the green coast, because of the contrast between the ocean and the Atlantic forest covering the Serra do Mar mountain chain). There is a strong possibility for tourism to become the means in which to achieve economic sustainability for conservation. Contradictorily, tourism is also the major threat to local biodiversity and its landscape units. Because tourism is not organized and controlled, during high season the numbers grow above local capacity, giving rise to a proliferation of hotels, guesthouses and camping grounds. The resulting untreated open sewage, random garbage disposal and other harmful activities form the major threats to biodiversity.

scholarly journals Genera of Belytinae (Hymenoptera: Diapriidae) recorded in the Atlantic Dense Ombrophilous Forest from Paraíba to Santa Catarina, Brazil

2017 ◽  
Vol 57 (6) ◽  
pp. 57
Author(s):  
Alex Leite Quadros ◽  
Carlos Roberto F. Brandão
Keyword(s):  
Atlantic Forest ◽  
Rain Forest ◽  
Latitudinal Gradient ◽  
Parasitoid Wasps ◽  
Santa Catarina ◽  
Specific Level ◽  
Natural Regulation ◽  
Ombrophilous Forest ◽  
Dense Ombrophilous Forest ◽  
Malaise Traps

The parasitoid wasps Belytinae (Hymenoptera: Diaprioidea: Diapriidae) recorded thus far in the Atlantic Dense Ombrophilous Forest are reviewed at the supra specific level. The knowledge about the diversity of Belytinae in the Atlantic Forest is relatively poor, although these parasitoids may play a key role in the natural regulation of populations of the Mycetophilidae and Sciaridae (Diptera). The material used in this study comes mostly from standardized collections in 18 regularly spaced sites, from Paraíba to Santa Catarina Brazilian states, between 2000 and 2002, by the project “Richness and diversity of Hymenoptera and Isoptera along a latitudinal gradient in the Atlantic Forest – the eastern Brazilian rain forest” (Biota/SP – FAPESP). At each location ten Malaise traps and a hundred Moericke traps were installed, both along two parallel transects spaced 100 m from each other. Further, a similar effort for the sweeping of vegetation was applied at each locality, being each sweeping sample the result of 5 minutes of sweeping. Traps, and sweeping of vegetation in the summed localities yielded a total of 1,241 Belytinae specimens, of which we recognize 115 morphospecies in eight genera (Aclista, Belyta, Cinetus, Odontopsilus, Scorpioteleia, Lyteba, Tropidopsilus and Camptopsilus). A further belytine genus (Miota), recorded in similar environment, was found at the collection of the Federal University of Espírito Santo and added to the list, totalling nine here keyed genera; for each genus we include a diagnosis, comments and a discussion on its records, distribution and biology; we also provide twenty-two plates with 102 figures (93 photographs and 9 maps).

scholarly journals Soil quality indicators in areas with different vegetation cover in the Atlantic Forest biome, Southeastern Brazil

2020 ◽  
Vol 11 (7) ◽  
pp. 1-15
Author(s):  
Fernado Silva Coutinho ◽  
Luiz Alberto da Silva Rodrigues Pinto ◽  
Marcos Gervasio Pereira ◽  
Shirlei Almeida Assunção ◽  
Silver Rodrigues Zandoná ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Atlantic Forest ◽  
Vegetation Cover ◽  
Secondary Forest ◽  
Southeastern Brazil ◽  
Organic Carbon Content ◽  
Secondary Forests ◽  
Forest Fragments ◽  
Humic Fractions ◽  
Forest Biome

The southeast region of Brazil, in the Atlantic Forest biome, has been impacted for a long time, observing today small agricultural areas inserted in a matrix of pastures and forest fragments, the soils being highly modified due to the different forms of use they were submitted. The objective of this study was to evaluate the organic carbon content in the humic fractions on soil organic matter (SOM), the distribution of aggregates in size classes and the porosity and aggregates density variables by means of computed tomography in secondary forest, pasture and agriculture areas in Pinheiral (RJ). Three areas composed of secondary forests with different succession stages and three managed areas were evaluated: Secondary Forest (SF) Initial Stage (SFIS), Medium Stage (SFMS), Advanced Stage (SFAS), mixed managed pasture (MMP), and perennial and annual agriculture (PA and AA, respectively). Three types of samples were collected in different layers: i) deformed samples to quantify carbon in the SOM humic fractions; ii) clods for quantifying the mass of aggregates and later assessing the distribution by diameter classes; and iii) undisturbed samples collected with the aid of an acrylic cylinder to perform computed tomography (CT). Humic substances and aggregate classes below 2.0 mm were the attributes most influenced by the forms of use and/or vegetation cover. The CT technique proved to be efficient in the measurement of the edaphic attribute’s porosity and density of the aggregates, helping in the characterization and separation of the different environments.

scholarly journals New records of buffy-tufted-ear marmoset Callithrix aurita (É. Geoffroy, 1812), in a protected area of Teresópolis, Brazilian Atlantic Forest

2021 ◽  
Vol 7 (1) ◽  
pp. 209
Author(s):  
Vitor Guniel-Cunha ◽  
Paulo Rodrigo-Dias ◽  
Ricardo De Barros Mello Filho ◽  
Jorge Luiz do Nascimento ◽  
Carlos Eudardo De Viveiros Grelle
Keyword(s):  
Atlantic Forest ◽  
Habitat Loss ◽  
Protected Area ◽  
New Records ◽  
Secondary Forest ◽  
Primate Species ◽  
Brazilian Atlantic Forest ◽  
Natural Park ◽  
Forest Sites ◽  
Callithrix Aurita

Callithrix aurita, an Atlantic Forest endemic primate, is a threatened species due to habitat loss, deforestation, interspecific competition and hybridization. In 2018, it entered the list of the world's 25-most threatened primate species, therefore, new occurrence sites must help in its conservation. Transects in the Montanhas de Teresópolis Municipal Natural Park and occasional sampling on the surrounding roads, using playback, have been carried out between March 2020 and January 2021. Eleven new records were made of the occurrence of the species in and around the PNMMT, in secondary forest sites with altitudes between 711 and 1000m. These records reinforce the importance of the Park for the conservation of this primate. The presence of this species can help the planning and management of this protected area, indicating areas for preservation.

Uanauna gen. nov., a new genus of fireflies endemic to the Brazilian Atlantic forest (Coleoptera: Lampyridae), with key to brazilian genera of Lucidotina

Zootaxa ◽  
2019 ◽  
Vol 4585 (1) ◽  
pp. 59 ◽  
Author(s):  
LUCAS CAMPELLO-GONÇALVES ◽  
PAULA M. SOUTO ◽  
JOSÉ R.M. MERMUDES ◽  
LUIZ F.L. SILVEIRA
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
New Genus ◽  
Southeastern Brazil ◽  
Mountain Range ◽  
Brazilian Atlantic Forest ◽  
Diagnostic Features ◽  
Serra Do Mar ◽  
Forest Habitats ◽  
Janeiro State

Here, we propose Uanauna gen. nov. (Lampyridae: Photinini), a new monotypic genus of fireflies endemic to the Brazilian Atlantic Forest. Uanauna angaporan sp. nov. occurs in Submontane and Montane forest habitats at the Serra do Mar mountain range, in the Southern Fluminense region (Rio de Janeiro State, Southeastern Brazil). The new species was recorded both on the mainland, at the municipality of Itaguaí and Rio de Janeiro, and at the continental island of Ilha Grande, in Angra dos Reis, at the Rio de Janeiro State. An occurrence map and illustrations of diagnostic features are given for the new taxa, as well as a key to Lucidotina genera in Brazil. 

A new Aspidogyne (Orchidaceae: Goodyerinae) from the Brazilian Atlantic Forest

Phytotaxa ◽  
2016 ◽  
Vol 289 (3) ◽  
pp. 279 ◽  
Author(s):  
ERIC DE CAMARGO SMIDT ◽  
MATHIAS ERICH ENGELS ◽  
MARCELO RODRIGUES MIRANDA
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Related Species ◽  
Flower Color ◽  
Sympatric Species ◽  
Northern Coast ◽  
Brazilian Atlantic Forest ◽  
Closely Related Species ◽  
Paulo State ◽  
A New Species

A new species of Aspidogyne from the Atlantic Forest in Caraguatatuba, on the northern coast of São Paulo State, Brazil, is proposed, described, illustrated and compared with closely related species. A key to the sympatric species of Goodyerinae is also provided. Aspidogyne caraguatatubensis is easily recognized by its small size, lip shape and the absence of rostellum. Among congeners, the new species resembles A. argentea, which differs by its larger size, flower color, lip with truncated apex and developed rostellum.

scholarly journals Identification key for lycophytes and ferns from the Picinguaba and Santa Virgínia Nuclei, Parque Estadual da Serra do Mar, Ubatuba, SP, Brazil

2016 ◽  
Vol 16 (4) ◽  
Author(s):  
Giseli Areias Nóbrega ◽  
Marcos Pereira Marinho Aidar ◽  
Mateus Paciencia ◽  
Jefferson Prado
Keyword(s):  
Endangered Species ◽  
Atlantic Forest ◽  
Sao Paulo ◽  
The State ◽  
Identification Key ◽  
Brazilian Atlantic Forest ◽  
São Paulo ◽  
Serra Do Mar

Abstract This work contributes to the knowledge of the fern and lycophytes diversity in the Picinguaba and Santa Virginia Nuclei, Parque Estadual da Serra do Mar (PESM), Ubatuba, São Paulo, Brazil, as well as to provide subsidies to identification of the found taxa in these areas. In total, 30 collecting expeditions were conducted and the vouchers were deposited at UEC Herbarium. We have identified 135 species distributed in 53 genera and 19 families for both areas. The most representative families were Polypodiaceae (28 species) and Dryopteridaceae (19 species), whereas Asplenium (12 species), Blechnum and Elaphoglossum (8 species each) were the most important genera. Epiphytic species predominated (62 overall), probably due to the presence of favorable habitats. Among the taxa, 41 are considered endemic from Brazil, 35 of them endemic to the Brazilian Atlantic Forest. Five species are classified as vulnerable according to the “Official list of endangered species in the State of São Paulo”: Elaphoglossum macahense (Fée) Rosenst., Anetium citrifolium (L.) Splitg., Asplenium muellerianum Rosenst., Cyathea glaziovii (Fée) Domin, and Thelypteris angustifolia (Willd.) Proctor, which emphasizes the importance of preservation areas such as the Parque Estadual da Serra do Mar. An identification key has been elaborated to help with the recognition of these groups in Picinguaba and Santa Virgínia Nuclei.

A new species of Epidendrum (Epidendroideae; Orchidaceae) from the Brazilian Atlantic Forest

Phytotaxa ◽  
2016 ◽  
Vol 284 (3) ◽  
pp. 225 ◽  
Author(s):  
FELIPE FAJARDO V. A. BARBERENA ◽  
DIEGO RAFAEL GONZAGA
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Southeastern Brazil ◽  
Brazilian Atlantic Forest ◽  
Parque Nacional Do Itatiaia ◽  
Ombrophilous Forest ◽  
A New Species

A new epiphytic species of Epidendrum from the Brazilian Atlantic Forest is described and illustrated. Epidendrum campos-portoi grows in Upper-Montane Ombrophilous Forest in the Parque Nacional do Itatiaia, southeastern Brazil. The new species differs from E. subpurum, the morphologically closest species, mainly in the thinner, cylindrical stem, not thickened, inflorescence in a raceme, and green flowers.

scholarly journals Landscape structure shapes the diversity of tree seedlings at multiple spatial scales in a fragmented tropical rainforest

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0253284
Author(s):  
Sergio Nicasio-Arzeta ◽  
Isela E. Zermeño-Hernández ◽  
Susana Maza-Villalobos ◽  
Julieta Benítez-Malvido
Keyword(s):  
Landscape Structure ◽  
Secondary Forest ◽  
Spatial Scales ◽  
Landscape Composition ◽  
Landscape Configuration ◽  
Secondary Forests ◽  
Tree Seedling ◽  
Forest Patches ◽  
Β Diversity ◽  
Α Diversity

The maintenance of seedling diversity of animal-dispersed tree species is fundamental for the structure and function of forest patches in fragmented tropical rainforests. Nonetheless, the effects of landscape structure at different spatial scales on α- and β-diversity of tree seedling communities are recently explored. Using a multi-scale approach, we assessed the relative effect of landscape composition and configuration on α- and β-diversity of animal-dispersed seedlings within 16 forest patches in the Lacandona rainforest, Mexico. We assessed these effects at 13 spatial scales (from 300 to 1500 m radius, at 100 m intervals) for three metrics of effective number of species considering α- and β-diversity. We found that α-diversity was largely affected by landscape composition and β-diversity by landscape configuration. On the one hand, the amount of secondary forest influenced α-diversity. Additionally, species richness increased in landscapes with highly aggregated forest patches. On the other hand, β-diversity was affected positively by forest fragmentation and negatively by the edge contrast of forest patches with the surrounding matrix. Our findings indicate that landscape configuration is a strong driver of seedling diversity in highly deforested rainforests. Promoting forest patches and secondary forests through payment for ecosystem services’ programs, favoring matrix quality within land-sharing schemes of smallholder agriculture and secondary forest management, and identifying restoration opportunities for assisted or unassisted natural regeneration are urgently needed for conservation of seedling diversity in human-modified tropical landscapes.

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