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 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 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).

Genetic structure in a tropical lek-breeding bird, the blue manakin (Chiroxiphia caudata) in the Brazilian Atlantic Forest

2007 ◽  
Vol 16 (23) ◽  
pp. 4908-4918 ◽  
Author(s):  
MERCIVAL R. FRANCISCO ◽  
H. LISLE GIBBS ◽  
MAURO GALETTI ◽  
VITOR O. LUNARDI ◽  
PEDRO M. GALETTI JUNIOR
Keyword(s):  
Genetic Structure ◽  
Atlantic Forest ◽  
Brazilian Atlantic Forest ◽  
Breeding Bird

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 Population structure and geographically structured reproductive strategies of the haplodiplontic seaweed Dictyota dichotoma

2019 ◽  
Author(s):  
Frédérique Steen ◽  
Verlaque Marc ◽  
Sofie D’hondt ◽  
Christophe Vieira ◽  
Olivier De Clerck
Keyword(s):  
South Africa ◽  
Genetic Structure ◽  
Sexual Reproduction ◽  
Canary Islands ◽  
Isolation By Distance ◽  
Glacial Refugia ◽  
Population Diversity ◽  
Mediterranean Populations ◽  
Dictyota Dichotoma ◽  
Southern Norway

AbstractBoth mating system variation and the propensity of many seaweeds to reproduce both sexually and asexually, leave a strong imprint in the genetic structure of species. In this respect, we study the population genetic structure of Dictyota dichotoma, a common haplodiplont brown subtidal seaweed. This benthic species is widespread in the NE-Atlantic, from the Canary Islands and Mediterranean Sea to southern Norway, but lately populations have been reported from Argentina and South Africa. Phenology and reproduction of D. dichotoma was monitored year-round in four populations to investigate how the species has adapted to the steep thermal gradient in southern and northern ranges of its distribution. Thirteen microsatellites are developed in order to assess patterns of population diversity and structure across the biogeographic range, as shaped by past and present processes. Last, we assess the genetic structure of South African and South American populations and their relationship to the northern hemisphere populations.Throughout its range, D. dichotoma shows a varying reproductive effort, with sexual reproduction being more abundant in the northern range. In contrast, the Mediterranean populations show a clear sporophyte dominance, suggesting that sexual reproduction is not the prime mode of reproduction, and indicating that the species potentially resorts to other modes of propagation as for instance fragmentation or apospory.Genetic diversity is highest in the southern population decreasing gradually northward, indicative for a recolonization pattern after the demise of the last glacial maximum where these areas served as glacial refugia. European mainland populations show an isolation by distance pattern, while the population in the Canary Islands has its own genetic identity, being significantly diverged from the mainland population. Populations in South Africa and Argentina are seemingly introduced from mainland Europe, but no conclusion can be made on the exact timing of these introductions.

scholarly journals Fine-scale spatial genetic structure of Dalbergia nigra (Fabaceae), a threatened and endemic tree of the Brazilian Atlantic Forest

2012 ◽  
Vol 35 (4) ◽  
pp. 838-846 ◽  
Author(s):  
Renata Santiago de Oliveira Buzatti ◽  
Renata Acácio Ribeiro ◽  
José Pires de Lemos Filho ◽  
Maria Bernadete Lovato
Keyword(s):  
Genetic Structure ◽  
Atlantic Forest ◽  
Spatial Genetic Structure ◽  
Brazilian Atlantic Forest ◽  
Fine Scale ◽  
Dalbergia Nigra

scholarly journals High genetic diversity and strong spatial genetic structure in Cabralea canjerana (Vell.) Mart. (Meliaceae): implications to Brazilian Atlantic Forest tree conservation

2014 ◽  
Vol 12 (2) ◽  
pp. 129-133 ◽  
Author(s):  
Arthur Tavares de Oliveira Melo ◽  
Alexandre Siqueira Guedes Coelho ◽  
Marlei Ferreira Pereira ◽  
Angel José Vieira Blanco ◽  
Edivani Villaron Franceschinelli
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Atlantic Forest ◽  
Spatial Genetic Structure ◽  
Forest Tree ◽  
Brazilian Atlantic Forest ◽  
High Genetic Diversity

scholarly journals New record of Juliomys ossitenuis Costa, Pavan, Leite & Fagundes, 2007 (Rodentia, Sigmodontinae) in Santa Catarina state, southern Brazil

Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 805-809
Author(s):  
Maíra Michalak de Souza ◽  
Bruno Busnello Kubiak ◽  
Renan Maestri ◽  
Rafael Kretschmer ◽  
Daniel Galiano
Keyword(s):  
Atlantic Forest ◽  
New Record ◽  
Southern Brazil ◽  
Santa Catarina ◽  
Araucaria Forest ◽  
Cytogenetic Analyses ◽  
Ombrophilous Forest ◽  
Dense Ombrophilous Forest ◽  
Southeastern Region ◽  
Santa Catarina State

Juliomys ossitenuis Costa, Pavan, Leite and Fagundes, 2007 was previously known in Brazil from the Atlantic Forest of the Southeastern Region to the Dense Ombrophilous Forest and Araucaria Forest of the Southern Region. The new record from Chapecó, in Santa Catarina state, confirmed by morphological and cytogenetic analyses, extends its distribution about 300 km westwards. This is the westernmost record for the species, in a region characterized by the transition between deciduous and Araucaria forests.

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