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| Registros recuperados: 29 | |
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| Santo,Fabio da Silva do Espírito; Santos,Amanda Pricilla Batista; Ribeiro,Patrícia Luz; Rapini,Alessandro. |
| ABSTRACT Three new species of Marsdenia (Apocynaceae) are described from Brazil: M. paganuccii, known from two disjunct populations, one in the Caatinga of Bahia and other in the Atlantic Forest of Espírito Santo; M. paraibana, restricted to the Restinga of Cabedelo National Forest in the Atlantic Forest of Paraíba; and M. trisegmentata, known from two populations in Caatinga, one in Bahia and other in Ceará. Illustrations, a geographic distribution map and comparisons with morphologically similar species are also presented for each species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apocynaceae; Asclepiadoideae; Atlantic Forest; Brazil; Caatinga; Conservation; Marsdenia; Neotropics; Taxonomy; Threatened species. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200247 |
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| Branco,Joaquim Olinto; Freitas Júnior,Felipe; Christoffersen,Martin Lindsey. |
| Marine communities in tropical regions contain a great diversity of species that play key roles in ecological processes. The observed bycatch fauna in artisanal fishing for the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) in the southwest Atlantic exceeds the quantity of commercial shrimp captured. This bycatch has not been previously inventoried extensively in Brazil, particularly in the State of Santa Catarina, where small-scale shrimp fisheries is a traditional activity and dominates the local fishing economy. Six municipalities were sampled three times a month, from 1996 to 2011, yielding 216 species belonging to the bycatch (7 cnidarians, 22 mollusks, 42 crustaceans, 11 echinoderms, and 134 fishes). Bycatch management is a pressing aspect of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bycatch fauna; Marine diversity; Southwest Atlantic; Threatened species; Xiphopenaeus kroyeri. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200106 |
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| Rosas,Fernando César Weber; Rocha,Carla Soares da; Mattos,Gália Ely de; Lazzarini,Stella Maris. |
| Few giant otters (Pteronura brasiliensis) have been measured and weighed and its actual size is controversial in the literature. This study presents the weight-length relationship of Amazonian giant otters using 15 captive individuals. The maximum length and weight were 163cm and 22.5kg, and 162cm and 28.8kg, for the males and females, respectively. The weight-length relationships were not significantly different between the sexes (t = 0.658, d.f.=11, P>0.05) and can be expressed by the equation: W=1.48x10-5 L2.81. Considering that some of the giant otters used in this study were old individuals (more than 10 years old), and that all the animals analyzed were healthy, it is possible to assume that the weight-length relationships obtained are probably a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Giant otters; Pteronura brasiliensis; Biometry; Amazonia; Threatened species. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300010 |
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| John,Ana Laura de Wallau; Mäder,Geraldo; Fregonezi,Jeferson N.; Freitas,Loreta B.. |
| Abstract Calibrachoa is a South-American genus comprising 27 species, several considered endemic or rare; few were subjects in genetic studies. We attempted to generate new data about the phylogenetically related and rare species C. eglandulata, C. sendtneriana, C. serrulata, and C. spathulata concerning their genetic diversity and population structure, which, coupled with their known restricted distribution, could help access their conservation status and contribute to the study of the Brazilian biodiversity. We sequenced 88 individuals for plastid intergenic spacers and genotyped 186 individuals for five microsatellite loci. Compared among each other, C. sendtneriana and C. serrulata presented the highest values of genetic diversity [π% (sd) = 0.23... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plastid DNA; Microsatellites; Threatened species; Grasslands; Herbaceous species. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100108 |
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| Marques, Virginie; Milhau, Tristan; Albouy, Camille; Dejean, Tony; Manel, Stéphanie; Mouillot, David; Juhel, Jean‐baptiste; Dutta, Trishna. |
| Aim Environmental DNA metabarcoding has recently emerged as a non‐invasive tool for aquatic biodiversity inventories, frequently surpassing traditional methods for detecting a wide range of taxa in most habitats. The major limitation currently impairing the large‐scale application of eDNA‐based inventories is the lack of species sequences available in public genetic databases. Unfortunately, these gaps are still unknown spatially and taxonomically, hindering targeted future sequencing efforts. Innovation We propose GAPeDNA, a user‐friendly web interface that provides a global overview of genetic database completeness for a given taxon across space and conservation status. As an application, we synthetized data from regional checklists for marine and... |
| Tipo: Text |
Palavras-chave: Environmental DNA; Genetic markers; IUCN; Marine and freshwater fish; Non‐indigenous species; Reference database; Shiny; Threatened species. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/79976/82921.pdf |
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| Valões Cardoso,M. Luiza; Ferreira,Paula B; Wanderley,Artur M; Torres,Rodrigo A; Talebi Gomes,Mauricio; Teixeira,Rodrigo H. F; Duarte,José M. B; Garcia,José E. |
| To control illegal wildlife-product trade and protect endangered species of animals, unambiguous identification of the captured specimens is essential. Forensic genetic tools have contributed to identify animal species for conservation purposes promoting accurate results for informing public policies and management of the biodiversity. The southern muriqui (Brachyteles arachnoides) is the largest non-human primate of the Neotropical region and is critically endangered (IUCN Red List of Threatened Species), mainly due to the illegal hunting for bushmeat. In this study, we describe a molecular method using PCR/RFLP to differentiate between bushmeat of southern muriqui and the meat of the domestic animals most commonly consumed in Brazil (Bos taurus, Ovis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyteles arachnoides; Forensic genetics; Illegal hunting; Threatened species; 16S mtDNA. |
| Ano: 2018 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832018000100004 |
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| MacKay, M.; Smith, G.; Gardiner, S.E.. |
| Although Rhododendron subg. Vireya, comprising 400 taxa, is one of the largest plant genera in Southeast Asia, with taxa found throughout the region, it has a significant conservation problem, with conservation status assessments in 2011 and 2015 placing 201 taxa in an IUCN Red List threat category. Plant conservation is driven by the Global Strategy for Plant Conservation, with Target 8 requiring 75 % of threatened plant taxa to be conserved in ex situ collections, by 2020. To date there has been limited analysis of conservation priorities for subg. Vireya, or any consideration of how its geographic characteristics, complex taxonomy, and existing ex situ collections might influence priorities. We analyse the IUCN Red List status of geographic origins and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Botanic gardens; Malesian flora; Red List; Schistanthe; Target 8; Threatened species; Vireya. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/616968 |
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| MacKay, M.B.; Gardiner, S.E.. |
| A Red List assessment is insufficient to determine priorities for ex situ conservation in large genera such as Rhododendron, where there may be hundreds of taxa in any one Red List category. We have utilised an analysis of the geographic origins of 1?215 taxa of Rhododendron (Ericaceae) as a method to prioritise Red List taxa for ex situ conservation. This analysis includes descriptions of distribution and endemism by country of origin, analysis of the incidence of the 715 Red List taxa by country of origin, and determination of the extent to which taxa from each country of origin are in cultivation. We determined that of 30 countries of origin and a ‘Europe’ aggregate, 24 origins contain Red List taxa. Of those 24 origins, 17 origins and ‘Europe’ have... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Botanical gardens; Malesian flora; Plant collections; Target 8; Threatened species. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/636712 |
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| Swarça,Ana Claudia; Orsi,Mário Luis; Takagui,Fábio Hiroshi; Dias,Ana Lucia; Dergam,Jorge Abdala; Fenocchio,Alberto Sérgio. |
| ABSTRACT The present report represents the first cytogenetic description of Steindachneridion doceanum, great catfish which is currently at high extinction risk and it is listed as threatened on the red list of the Brazilian Ministry of the Environment, also are suggested karyotype relationships with other species of the same genus endemic from other river basins. The results revealed a diploid number of 2n = 56 and the karyotype composed of 18 metacentric, 20 submetacentric, 10 subtelocentric and 8 acrocentric chromosomes (NF = 104). The AgNORs and CMA3 signals were coincident in location occupying the short arm of an acrocentric chromosome pair (25th), in a secondary constriction. The 5S rDNA genes were localized on the short arms of one subtelocentric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AgNORS; C band; Karyotype; South American Catfish; Threatened species. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400203 |
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| Just,João Paulo Gava; Rosoni,Jonas Rafael Rodrigues; Romagna,Rafael Spilere; Zocche,Jairo José. |
| Abstract Coastal lagoons and their surrounding habitats often harbour high biodiversity and some of the most threatened ecosystems in the world. However, in the Neotropics the biodiversity is often poorly described, lacking even inventories of species which therefore limits the assessment of threats and the stablishment of efficient conservation measures. We present here lists of bird species recorded at ten sites along the under-studied coastal lagoons of southern Santa Catarina, Brazil, collected mainly from October 2012 to March 2018. We present quantitative data for endemic and threatened species, identify migratory status and highlight distributional novelties. In total, we recorded 229 species encompassing 63 families, including twelve species of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Species list; Coastal lagoon; Inventory; Species richness; Threatened species. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100229 |
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| Registros recuperados: 29 | |
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