|
|
|
| Registros recuperados: 78 | |
|
|
| GUIZADO,Stalin Juan Vasquez; NADEEM,Muhammad Azhar; ALI,Fawad; BARUT,Muzaffer; HABYARIMANA,Ephrem; GÓMEZ,Tedi Pacheco; SANTILLAN,Jhon Antoni Vargas; CANALES,Esperanza Torres; GÓMEZ,Juan Carlos Castro; CHUNG,Gyuhwa; BALOCH,Faheem Shehzad. |
| ABSTRACT Rosewood, Aniba rosaeodora is an endangered species in Amazon forests and its natural stands have been heavily depleted due to over-exploitation for the cosmetic industry. This study aimed to investigate the genetic diversity and population structure of 90 rosewood accessions from eight localities in the Peruvian Amazon through 11 Inter Simple Sequence Repeats (ISSR) primers. The ISSR primers produced a sum of 378 bands, of which 375 (99.2%) were polymorphic, with an average polymorphism information content (PIC) value of 0.774. The mean effective number of alleles (Ne), Shannon informative index (I), gene diversity (He) and total gene diversity (Ht) were 1.485, 0.294, 0.453 and 0.252, respectively. Analysis of molecular variance (AMOVA) showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aniba rosaeodora; Endangered species; Gene flow; Germplasm; Molecular characterization. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300204 |
| |
|
|
| ARÉVALO-SANDI,Alexander Roldán; CASTELBLANCO-MARTÍNEZ,Delma Nataly. |
| Trichechus inunguis is an endemic species of the Amazon, which inhabits mainly in lakes and calm rivers. The objective of this study case was to describe the social behaviour of two female-orphaned calves, of T. inunguis in captivity. They were kept in the same pool at the facilities of the Amazon Rescue Center (ARC, Iquitos, Peruvian Amazon). Between February and October 2011, the individuals were observed during day and night times, completing 352 hours of observation. Through ad libitum observation of the individuals, we developed a catalogue of social behaviors that includes descriptions of 93 behaviours, classified in eight behavioural categories. The frequency of behaviours was assessed by instantaneous sampling (for states) and continuous recording... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Ethology; Social behaviour; Trichechus inunguis. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000200004 |
| |
|
|
| Coutinho,Thales Silva; Colli-Silva,Matheus; Alves,Marccus. |
| ABSTRACT This work validates two Waltheria species endemic to campo rupestre with complete descriptions, illustrations, updated geographical distributions and comments on taxonomic affinities. Waltheria biribiriensis and Waltheria terminans are restricted to the Southern Espinhaço Province in eastern South America, occurring on mountain tops where campo rupestre vegetation prevails. Furthermore, Waltheria brachypetala, a species of dry deciduous forests in Brazil that was long considered as conspecific with W. ferruginea due to its shrubby lifeform and similar indumentum, is re-established based on differences of phyllotaxy, blade shape and inflorescence type. The first occurrence records of W. brachypetala in the state of Paraíba are also provided, as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campo rupestre; Endangered species; Hermannieae; Heterostily; Malvales; Re-establishment; Vulnerable species. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300449 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Franceschi,CRISTINA R.B.; SMIDT,ERIC C.; VIEIRA,LEILA N.; RIBAS,LUCIANA L.F.. |
| Abstract: The orchid seed banks of Atlantic Forest may be considered a key strategy for the conservation of species threatened with extinction by indiscriminate collection or habitat destruction. The aim of this study was to evaluate the seed viability, to choose the best culture medium for the asymbiotic germination and evaluate germination, after storage for different periods and temperatures for the Brazilian native orchids: Gomesa praetexta (Rchb.f.) M.W.Chase & N.H.Williams, Gomesa forbesii (Hook.) M.W.Chase & N.H.Williams, Gomesa recurva R.Br. and Grandiphyllum divaricatum (Lindl.) Docha Neto. Knudson C (KC), Murashige & Skoog (MS), half-strength MS (1/2 MS macro- and micro-nutrients) and Woody Plant Medium (WPM) culture media were tested... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Endangered species; Epidendroideae; Gomesa; Grandiphyllum. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500863 |
| |
|
| |
|
| |
|
|
| de Carvalho,Israel Dias; de Oliveira,Rildo; dos Santos Pires,Alexandra. |
| Medium and large-sized terrestrial mammals develop important functions in ecosystems maintenance. However, this group is the most vulnerable to local extinctions, through habitat loss or hunting. This study inventoried the community of medium and large mammals in the Reserva Ecológica de Guapiaçú (REGUA), Cachoeiras de Macacu, RJ, providing data on species composition, richness and abundance. Species were registered through the use of camera traps, sign survey and visual encounters on pre-existing trails and roads. The study was conducted from January to October 2012, with each month considered as a sample unit. An effort of 1568 cameras-day and 120 km traveled, resulted on 302 records of 22 species of medium and large-sized mammals, belonging to eight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammal community; Endangered species; Camera traps; Sign survey; Atlantic Forest. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300203 |
| |
|
|
| Travassos,Leandro; Carvalho,Israel Dias; Pires,Alexandra S.; Gonçalves,Sérgio Nunes; Oliveira,Paulo Malvino; Saraiva,Alexandre; Fernandez,Fernando A. S.. |
| Abstract: The Tinguá Biological Reserve (TBR) is the largest protected area of this category in Rio de Janeiro state. Here, for the first time, we present the historical composition of terrestrial mammals' assemblage of TBR region. An inventory was conducted using transect surveys, nonstandard transects, survey of museum specimens and informal reports. Considering all the data, eighty-five species were recorded, placing TBR as the second one in the number of mammals recorded in "Serra do Mar" ecoregion of Atlantic Forest and in the Rio de Janeiro state. Among the species with historical records are the jaguar (Panthera onca) and the golden-lion-tamarin (Leontopithecus rosalia) while the current presence of the maned wolf (Chrysocyon brachyurus) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammal community; Atlantic Forest; Tinguá Biological Reserve; Endangered species; Museum data. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200307 |
| |
|
| |
|
|
| Bernard,Enrico; Nascimento,Jorge Luiz do; Aguiar,Ludmilla Moura de Souza. |
| The IUCN Red List is an important conservation tool. Although its criteria are used worldwide, in most cases the classification process per se is restricted to a group of experts with restricted or no participation of the general public. This may raise concerns from final Red List users, which, without knowing the data or procedures adopted by the experts, may argue on the outcomes, final classification adopted, or the overall use of the lists. IUCN recommends that all assessments must be backed up by data and justifications, making them as accurate and transparent as possible. We describe here the assessment of Eptesicus taddeii, a bat species endemic to the southern Atlantic Forest of Brazil, indicating how and why the species was flagged as Vulnerable -... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Chiroptera; Conservation policy; Endangered species; IUCN; Red List. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200314 |
| |
|
|
| Serra,Jane Piton; Carvalho,Fernando Rogério de; Langeani,Francisco. |
| Little is known about the ichthyofauna from South American coastal plain, specially concerning the Mata Atlântica (Atlantic Forest) rivers and streams, as there are regions little explored which may have non-described or rare species. An example is the Parque das Neblinas, a Natural Patrimony Private Reserve (RPPN) in the Bertioga municipality, São Paulo state, where no ichthyofaunal study had been done before. The park's hydrography is made up by the rio Itatinga with its various tributary streams, which flow into the Itapanhaú river basin. Nine sites were sampled using sieves, seines and gill nets; 1,086 specimens of seven species, three orders and five families were captured. The most representative species were Astyanax paranae, Phalloceros... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Fauna sharing; Conservation; Coastal river; Fauna inventory; Southeastern Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000100011 |
| |
|
| |
|
| |
|
| |
|
|
| Rondon,Josimara N.; Zaidan,Lilian B.P.; Domingos,Marisa; Barbedo,Claudio J.; Figueiredo-Ribeiro,Rita de Cássia L.. |
| Caesalpinia echinata Lam. (brazilwood) is an endangered tree species occurring along the eastern coast of Brazil from latitudes 5°56´S to 22°56´S. With such a range of distribution it is expected that temperature and daylength may affect plant development, which was examined in this study. One- and five-year-old saplings were grown under controlled photoperiods of 8 h, 12 h and 20 h, and in a greenhouse under natural light during 16 months. In another experiment, one-year-old saplings were cultivated for six months in a growth cabinet, with reduced maximum temperature, and in the greenhouse. Leaf number, stem height and stem diameter at the soil surface were evaluated every two months (experiment 1) or every month (experiment 2). In experiment 1, no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic forest; Endangered species; Tree growth. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000400004 |
| |
| Registros recuperados: 78 | |
|
|
|
