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Registros recuperados: 94
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Floristic and ecological characterization of habitat types on an inselberg in Minas Gerais, southeastern Brazil Acta Botanica
Paula,Luiza F. A. de; Mota,Nara F. O.; Viana,Pedro L.; Stehmann,João R..
ABSTRACT Inselbergs are granitic or gneissic rock outcrops, distributed mainly in tropical and subtropical regions. They are considered terrestrial islands because of their strong spatial and ecological isolation, thus harboring a set of distinct plant communities that differ from the surrounding matrix. In Brazil, inselbergs scattered in the Atlantic Forest contain unusually high levels of plant species richness and endemism. This study aimed to inventory species of vascular plants and to describe the main habitat types found on an inselberg located in the state of Minas Gerais, in southeastern Brazil. A total of 89 species of vascular plants were recorded (belonging to 37 families), of which six were new to science. The richest family was Bromeliaceae...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endemism; Granitic and gneissic rock outcrops; Life forms; Terrestrial islands; Vascular plants.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200199
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Faramea baturitensis (Rubiaceae: Coussareeae), a new species from “Serra de Baturité,” Northeast Brazil Acta Botanica
Jardim,Jomar Gomes; Souza,Elnatan Bezerra de; Loiola,Maria Iracema Bezerra.
ABSTRACT As part of an ongoing study of the taxonomy and systematics of Rubiaceae of the state of Ceará, Brazil, a new species, Faramea baturitensis, is here recognized, described, and illustrated. The new species occurs in “Serra de Baturité,” a relic of the Atlantic Forest. Detailed data on the distribution, habitat, phenology, and conservation status of the new species, as well as a key to species of Faramea in Ceará, are provided.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Endemism; Floristics; Rubioideae; Taxonomy.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400778
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Dimorphandra wilsonii Rizzini (Fabaceae): distribution, habitat and conservation status Acta Botanica
Fernandes,Fernando Moreira; Rego,Juliana Ordones.
Dimorphandra wilsonii Rizzini is a rare species. Although cited as endemic to the Brazilian state of Minas Gerais, it has been recorded only for the municipalities of Paraopeba and Caetanópolis and therefore has not been extensively studied. This long-term, intensive survey, conducted from 2004 to 2012 in the central region of the state, was aimed at assessing its distribution, describing its habitat, and verifying its endemism, as well as assessing threats and determining its conservation status. Given the considerable size of the area to be studied and the difficulty of locating individuals of the species, we adopted popular participation as a complementary tool and we employed spatial distribution modeling. Communities were mobilized through the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Extinction; Endemism; Faveiro-de-wilson; Inventory; Popular participation.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300017
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Taxithelium juruense (Broth.) Broth. (Pylaisiadelphaceae) an endangered Brazilian endemic, with notes on the genus Taxithelium in Brazil Acta Botanica
Câmara,Paulo Eduardo Aguiar Saraiva; Carvalho-Silva,Micheline.
(Taxithelium juruense (Broth.) Broth. (Pylaisiadelphaceae) an endangered Brazilian endemic, with notes on the genus Taxithelium in Brazil). Since its original description, several collections of this species were reported in different states of Brazil. During a revision of the genus, it was confirmed that the geographic range of this species is restricted to the state of Acre, all other reports being based on misidentifications due mostly to the highly polymorphic nature of Taxithelium planum (Brid.) Mitt. Here, we present a more detailed study of T. juruense with characters that will help to distinguish it from T. planum. The misidentifications have obscured the real conservation status of this species, which should be endangered (EN). Key and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sematophyllaceae; Acre; Endemism; Conservation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000100023
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Diversity and biogeography of neotropical bamboos (Poaceae: Bambusoideae) Acta Botanica
Clark,Lynn G.
The present paper analyses the distribution of bamboos in New World. For convenience, bamboos are divided into two broad groups, the woody bamboos and the herbaceous bamboos. These categories do not necessarily reflect phylogenetic relationships among bamboo groups. The Bambuseae includes all of the woody bamboos and is probably monophyletic, whereas the herbaceous bamboos are classified into eight tribes. In the New World (including underscribed taxa), 45-46 genera and approximately 515 species are represented; only two genera: Arundinaria and Streptogyna are not exclusively neotropical. The area of greatest endemism and diversity is the humid coastal forests of Bahia, Brazil. 22 genera have been found in this relatively small area, representing 48% of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bamboos; Gramineae; Neotropical; Endemism.
Ano: 1990 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061990000100009
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Nomenclatural novelties in Lessingianthus (Asteraceae - Vernonieae): an extraordinary new species, a lectotypification, and a new combination from a resurrected synonym Acta Botanica
Ribeiro,Rogério Neves; Teles,Aristônio M..
ABSTRACT Lessingianthus spinifolius is here described and illustrated as a new species of the tribe Vernonieae (Asteraceae) from Chapada dos Veadeiros, State of Goiás, Brazil. The new species is thus far known only from the type locality. The characteristics that most differentiate L. spinifolius from congeners are: (i) leaf blade strongly revolute; and (ii) leaf blade with spines on the margins. The new species is similar to L. onopordioides due to both having a similarly shaped involucre and the involucre being eximbricate with lanceolate phyllaries. Taxonomic and ecological comments, a distribution map, conservation status assessment, and illustrations of the new species are provided. Additionally, Vernonia araneosa is resurrected from the synonymy of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Compositae; Endemism; Lepidaploinae; Vernonia.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400521
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Distribution pattern of anurans from three mountain complexes in southeastern Brazil and their conservation implications Anais da ABC (AABC)
NEVES,MATHEUS O.; PEREIRA,ELVIS A.; SUGAI,JOSÉ LUIZ M.M.; ROCHA,SABINE B. DA; FEIO,RENATO N.; SANTANA,DIEGO J..
ABSTRACT Biogeographic tools support spatial distribution pattern hypotheses and help to determine priority areas for conservation. Our aim was to verify biogeographic patterns for anurans in three mountain complexes in southeastern Brazil, as well as to discuss the status of species conservation recorded and the biogeographical units evaluated. We selected 16 areas distributed in the Serra da Mantiqueira complex, south of Serra do Espinhaço and Serra da Canastra. We used the occurrence (geographic coordinates) of each species in the localities to determine areas of endemism applying the Endemicity Analysis method. We also tested whether similarity between areas was explained by geographic distance (Multiple Regression on distance Matrices-MRM). The Serra...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endangered species; Endemism; Highlands; Mantiqueira Complex; Serra da Canastra; Serra do Espinhaço.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401611
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A study of the dry forest communities in the Dominican Republic Anais da ABC (AABC)
García-Fuentes,Antonio; Torres-Cordero,Juan A.; Ruiz-Valenzuela,Luis; Lendínez-Barriga,María Lucía; Quesada-Rincón,Juan; Valle-Tendero,Francisco; Veloz,Alberto; León,Yolanda M.; Salazar-Mendías,Carlos.
This paper is a floristic and phytosociological study of the dry forest communities of the Dominican Republic. A total of 69 relevés in dry forest biotopes were carried out. The samples were subsequently subjected to Detrended Correspondence Analysis for the determination and study of possible groupings. The study does not cover tree formations growing on serpentines, nor the so-called semideciduous forests, peculiar to areas with higher rainfall. A total of nine phytocoenoses were identified. The most significant results led to the description of six new phytosociological associations: Simaroubetum berteroani(thorny dry forest on coastal dunes), Phyllostylo rhamnoidis-Prosopidetum juliflorae (southern Dominican disturbed dry forest), Consoleo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caribbean; Endemism; Multivariate analysis; Phytosociology; Xericity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100249
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Life History Parameters of Genypterus brasiliensis (Teleostei: Ophidiidae), an Endemic Fisheries Resource of the Southwestern Atlantic Anais da ABC (AABC)
TOMÁS,ACÁCIO R.G.; ELEUTERIO,CELSO L.T.; VELASCO,GONZALO.
Abstract: Genypterus brasiliensis, a demersal fish of large size (1.3 m of total length), occurs in the southwest Atlantic (23 to 38oS) and well appreciated due to the quality of its flesh. It was analyzed through longline and trawl fisheries, and the average length and weight of 724 specimens were significantly different between them, with the biggest and heaviest specimens caught by the former. The weight-length relationships were significantly different based upon sex: females Wt=4x10-7Lt3.3799; r2=0.97; n=262; p<0.001, and males: Wt=4x10-7Lt3.3886; r2=0.95; n=190; p<0.001. Using the otoliths readings for 153 specimens (APE of 2% and CV of 4.2%), the growth parameters estimates reveal statistical differences between sexes (p=0.05; r2=0.889). The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Population dynamics; Endemism; Fishes; Fisheries.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500609
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Miconia gigantea, a long-forgotten endemic and endangered species of Melastomataceae in the Brazilian Atlantic Forest Anais da ABC (AABC)
ROSA,LILIAN P.G. DA; BAUMGRATZ,JOSÉ F.A.; SILVA NETO,SEBASTIÃO J. DA.
ABSTRACT Taxonomic and floristic studies in the state of Rio de Janeiro allowed the rediscovery of Miconia gigantea, an endemic species to the Atlantic Forest, until recently known only from the type specimen, collected over 100 years by A.F.M. Glaziou. We present an amended and detailed description of M. gigantea, providing characteristics of the flowers, fruits and seeds, in addition to illustrations, comments about taxonomic affinities with closely related species, the presently known distribution together with new occurrence records, and the conservation status.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation; Endemism; Glossocentrum; Miconieae; Rio de Janeiro.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501809
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Ichthyofauna of Rio Jurubatuba, Santos, São Paulo: a high diversity refuge in impacted lands Biota Neotropica
Mattox,George Mendes Taliaferro; Iglesias,José Manoel Pires.
Ichthyofaunistic surveys in the Atlantic Rainforest have been published in relatively few works, in spite of the major biological importance of this once vast biome which is rapidly vanishing due to disordered human population growth and natural resources overexploitation. The present study aimed to access the fish fauna of a relatively well preserved basin between the cities of Santos and Cubatão (SP), an area highly modified by human activities where recent ichthyofaunistic surveys are still missing. Collections were made during three field trips in Rio Jurubatuba, a medium sized costal river, and Riacho Sabão, one of its main tributaries. A total of 2773 specimens were sampled, representing 25 species from 14 families. Six species were primary marine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Rainforest; Conservation; Endangered species; Endemism; Stream fishes.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000100010
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Insect galls on Myrtaceae: richness and distribution in brazilian restingas Biota Neotropica
Maia,Valéria Cid.
Abstract: Inventories in Brazilian restingas have been indicating that Myrtaceae are the plant family with the greatest richness of insect galls. A compilation of published data plus new records was elaborated with the aim of stablishing the number of gall morphotypes on this family in this physiognomy of the Atlantic Forest, producing a list of galled species, pointing out the predominant gall features, evaluating the taxonomical knowledge of the gallers, listing the associated fauna, and based on host plant endemisms and monophagy proposing the endemism of some galling species. Myrtaceae harbor 111 morphotypes of insect gall (about 75% induced by Cecidomyiidae, Diptera) on 25 host plant species, 15 endemic. Eugenia L. highlights as the plant genus with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Diversity; Endemism; Plant-insect interaction.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000100601
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Geographic distribution of epiphytic bromeliads of the Una region, Northeastern Brazil Biota Neotropica
Fontoura,Talita; Santos,Flavio Antonio Maës dos.
Many Brazilian Atlantic Rainforest plant and animal species are geographically restricted to Southern Bahia and Northern Espírito Santo States. We investigated the geographic distribution of epiphytic bromeliads in the lowland forest of the Una region (15° 17' 34' S - 39° 04' 30'' W) in Southern Bahia. Specifically, we addressed the following questions: i) what is the extent of each species distribution?; and ii) are the Bromeliaceae subfamilies distributed differently from one another? Almost half of the 40 species (47.5%) occur exclusively in the Southern Bahia-Northern Espírito Santo region and are herein referred as endemic species. The highest percentage of the 15 species of Tillandsioideae (46.7%) occur throughout the South American Continent and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Rainforest; Bromeliaceae; Endemism; Geographic distribution; Epiphytes.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400017
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Ichthyofauna of the upper Juruena river on Chapada dos Parecis, Mato Grosso, Brazil Biota Neotropica
Ohara,Willian Massaharu; Loeb,Marina Vianna.
Abstract The fishes herein included were collected in four small streams of the upper rio Tapajós basin. Through fieldwork carried out in 2011, 2013 and 2014 during the low water season 1.728 specimens belonging to 22 species distributed in 11 families, and five orders were captured. Characidae was the most representative family both in number of species and specimens captured. The most abundant species were Hyphessobrycon melanostichos, H. hexastichos, and H. notidanos. Five species are recognized as new, and four as endemic to the upper rio Tapajós basin. This study represents the first fish inventory for the region and will provide valuable information for the conservation of the poorly known diversity of fishes of the Chapada dos Parecis, in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: South America; Neotropical fish; Amazon; Endemism.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400302
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Ecomorphological differences between Rhamdia (Bleeker, 1858) populations from the Iguaçu River basin Biota Neotropica
Mise,Fabio Teruo; Tencatt,Luiz Fernando Caserta; Souza,Fagner de.
Morphological and genetic evidences suggest that Rhamdia branneri and Rhamdia voulezi, currently considered synonymous of Rhamdia quelen, are in fact two valid species. Furthermore, in the taxonomic revision of R. quelen, no exemplars from the Iguaçu River were examined, which makes the synonymy doubtful. Considering the two species as valid, it was hypothesized that R. branneri and R. voulezi have ecomorphological differences, with the objective to verify if they can be considered ecologically distinct. Ecomorphological characterization was conducted using ecomorphological indices. For statistical analysis, a Principal Component Analysis (PCA), a Multiresponse Permutation Procedure (MRPP), and a Discriminant Analysis (DA) were performed. The ordination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endemism; Heptapteridae; Rhamdia voulezi; Rhamdia branneri; Rhamdia quelen; Ecomorphology.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400099
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Detection of areas of endemism on two spatial scales using Parsimony Analysis of Endemicity (PAE): the Neotropical region and the Atlantic Forest Biota Neotropica
Sigrist,Mário Sérgio; Carvalho,Claudio José Barros de.
An important biological challenge today is the conservation of biodiversity. Biogeography, the study of the distribution patterns of organisms, is an important tool for this challenge. Endemism, the co-occurrence of several species unique to the same area, has important implications for the preservation of biodiversity, since many areas of endemism are also areas with large human impact. More rigorously defined, areas of endemism are historical units of distributional congruence of monophyletic taxa. These areas often assumed to be due to nonrandom historical events that favored conditions associated with high rates of speciation. Thus, understanding endemism and the delimitation of endemic areas has important implications for conservation. Today, most...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Historical biogeography; Endemism; PAE; South America.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400002
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Endemic angiosperms in Bahia Coastal Forests, Brazil: an update using a newly delimited area Biota Neotropica
Ostroski,Piera; Saiter,Felipe Zamborlini; Amorim,André Márcio; Fiaschi,Pedro.
Abstract: The forest along the coast of Bahia state, in northeastern Brazil, has been acknowledged as an area of endemism for several groups of organisms. The first study concerning endemic angiosperm species in this region, through which 395 taxa were registered, was conducted 15 years ago. However, this number is probably underrated. In this article, we present an updated checklist of angiosperm taxa in Bahia Coastal Forests (BCF) based on geographic distribution data available from the Brazilian Plant List (Flora do Brasil 2020). The records were checked in herbaria, recent taxonomic literature, and, when necessary, reviewed by experts. The final checklist consists of 547 taxa endemic to BCF, distributed in 69 families, with seven endemic genera:...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Checklist; Conservation; Endemism; Hotspot.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000400205
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Composition of the ichthyofauna in Brazilian semiarid reservoirs Biota Neotropica
Costa,Silvia Yasmin Lustosa; Barbosa,José Etham de Lucena; Viana,Leandro Gomes; Ramos,Telton Pedro Anselmo.
Abstract The scale of impact that the São Francisco River transposition project will have on the drainage basins ichthyofauna is still unclear, however, changes in the fish community diversity and abundance is probable. Surveys and registries of the fish fauna within key systems of the catchment basins are priority actions for the conservation of the aquatic diversity. This study conducted a taxonomic survey of the Epitácio Pessoa (Boqueirão municipality) and Argemiro de Figueiredo (Itatuba municipality), reservoirs ichthyofauna, both belonging to the Paraíba do Norte River basin, important socioeconomic and environmental systems for the transposition project. Monthly sampling was carried out between October/2014 to September/2015 in the upstream and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endemism; Paraíba; Basins Transposition.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300203
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Ichthyofauna of the Mamanguape river basin, Northeastern, Brazil Biota Neotropica
Oliveira-Silva,Leonardo; Ramos,Telton Pedro Anselmo; Carvalho-Rocha,Yuri Gomes Ponce; Viana,Katherine Morais Porto; Avellar,Raizze da Costa; Ramos,Robson Tamar da Costa.
Abstract: The Mamanguape River Basin is located in a peripheral semi-arid area of South America, with its headwaters and middle reaches running through the Caatinga (from wetter to drier) and its lower reaches through the Atlantic Forest. The objective of this study was to inventory the fish fauna of the Mamanguape river basin through a comprehensive sampling and to discuss its ichthyofaunal dominance pattern. Sampling was conducted between 2015 and 2016 at 38 points throughout. The main river course was sampled at 18 fixed points during two expeditions (dry and wet seasons) using traw nets, cast nets, and dip nets, with a standardized effort. The tributaries were sampled during the dry season at 20 points using an adaptaptation of the AquaRAP methodology....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical Region; Brazilian Semiarid; Freshwater Fish; Species List; Dominance; Endemism.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000300204
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Ichthyofauna of the humid forest enclaves in the tablelands of Ibiapaba and Araripe, Northeastern Brazil Biota Neotropica
Rodrigues-Filho,Carlos Alberto de Sousa; Gurgel-Lourenço,Ronaldo César; Bezerra,Luis Artur Valões; Sousa,Wallace Alves de; Garcez,Danielle Sequeira; Lima,Sergio Maia Queiroz; Ramos,Telton Pedro Anselmo; Sánchez-Botero,Jorge Iván.
Abstract Humid highland forest enclaves are remnants of Atlantic Forest found in tablelands within the Caatinga biome (Northeastern Brazil), which emerged during interglacial periods in the Pleistocene. These ecosystems have a highly diverse and endemic fish fauna. Most earlier surveys have focused on the tableland of Borborema (Pernambuco and Paraíba States). In this study we surveyed the fish fauna of the humid forest enclaves in the tablelands of Ibiapaba and Araripe, based on samples collected in the rainy season (March and April) between 2009 and 2014. The 45 sampling points covered rivers, streams and reservoirs in five river basins belonging to three ecoregions. The species were listed according to drainage divide, and endemism was determined for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical Region; Endemism; Conservation; Fishes of the Caatinga.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400304
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