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| Registros recuperados: 78 | |
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| Freitas,AVL; Kaminski,LA; Iserhard,CA; Barbosa,EP; Marini Filho,OJ. |
| The pierid Charonias theano (Boisduval), an endangered butterfly species, has been rarely observed in nature, and has not been recorded in the state of São Paulo in the last 50 years despite numerous efforts to locate extant colonies. Based on museum specimens and personal information, C. theano was known from 26 sites in southeastern and southern Brazil. Recently, an apparently viable population was recorded in a new locality, at Serra do Japi, Jundiaí, São Paulo, with several individuals observed during two weeks in April, 2011. The existence of this population at Serra do Japi is an important finding, since this site represents one of the few large forested protected areas where the species could potentially persist not only in the state of São Paulo,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aporiina; Atlantic Forest; Endangered species; Pierini; Serra do Japi. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600006 |
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| Seyboth,Elisa; Condini,Mario V; Albuquerque,Cristiano Q; Varela Jr,Antônio S; Velasco,Gonzalo; Vieira,João P; Garcia,Alexandre M. |
| The dusky grouper, Mycteroperca marginata, is an important commercial marine fish that is currently considered an endangered species worldwide and listed as overexploited in Brazil. Although its reproductive biology has been studied elsewhere, no information is available for populations in its southernmost distribution limit on the Brazilian coast. The present work investigates age structure, growth and reproduction of individuals inhabiting a pair of rocky jetties, about 4.5 km long each, located in the mouth of Patos Lagoon in the municipality of Rio Grande, in the southwestern Atlantic Ocean. A total of 130 individuals obtained between February 2007 and May 2009 were analyzed, with total length ranging from 260 to 800 mm. The growth coefficient found in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Epinephelus marginatus; Patos Lagoon; Rocky jetties. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400016 |
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| Melo,Marcelo Roberto Souto de; Ribeiro,Mauro César Lambert de Brito; Lima,Flávio César Thadeo de. |
| ABSTRACT A new species of Characidium is described from the Cerrado biome, in Brasília, Distrito Federal, Central Brazil. The new species can be readily diagnosed by the presence of two or three longitudinal rows of dots along the body sides, absence of bars, by the short pectoral fin, which does not reach the vertical through the dorsal fin origin. Additional useful diagnostic characters are the scaled isthmus, absence of the adipose fin, and the terminal mouth. The new species is only known from the córrego Taquara and its tributaries, a tributary of ribeirão do Gama, upstream from lago Paranoá, in the upper rio Paraná basin. In accordance to the IUCN Red List Categories and Criteria, the new species is categorized as Critically Endangered. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; IUCN; Lago Paranoá; Reserva Ecológica do Instituto Brasileiro de Geografia e Estatística; Rio Paraná basin. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100201 |
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| Galindo,Bruno A.; Ferreira,Dhiego G.; Apolinário-Silva,Caroline; Terra,Mariana C.; Aprígio,Nícollas G. O.; Ota,Renata R.; Ohara,Willian M.; Almeida,Fernanda S.; Sofia,Silvia H.. |
| ABSTRACT Brycon nattereri is an endangered Neotropical fish reported along conserved stretches of the upper Paraná, Tocantins and São Francisco rivers. Populations of this species have been very rare in some Paraná River sub basins. This study analyzes the genetic diversity and population structure of B. nattereri in a restricted area of occurrence recently identified in upper Paraná River basin. Seven microsatellite loci and 497 bp of D-Loop mitochondrial region were examined in 92 individuals from four points along the area of occurrence. Both molecular markers indicated a single population distributed along a stretch of the river approximately 80 km long. Although some of the data suggest an ancient bottleneck, current levels of genetic diversity (H E... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Endangered species; Molecular markers; Population genetics; Pirapitinga. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100208 |
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| Carvalho,Fernando R.; Jesus,Guilherme C. de; Langeani,Francisco. |
| One of the most gorgeous colored and endangered Hyphessobryconspecies, H. flammeus Myers, is redescribed. Diagnostic characters of the species are two vertically elongated humeral spots, no caudal peduncle blotch, 5-8 maxillary teeth, caudal fin hyaline, and longitudinal dark stripe of the body absent. Sexual dimorphism is present, with males being more colored than females and having bony hooks in the anal and pelvic fins, which are dark in their terminal portions. Comments about its occurrence in the upper rio Tietê drainage (upper rio Paraná basin), its conservation status, and the phylogenetic position into Characidae context are also presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characiformes; Engraçadinho; Flame tetra; Coastal streams; Endangered species. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000200247 |
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| Alves,Carlos Bernardo Mascarenhas; Silva,Luiz Gustavo Martins da; Godinho,Alexandre Lima. |
| Jaú, Zungaro jahu (Ihering, 1898), a large migratory catfish endemic to the rio da Prata basin, has a fragile conservation status and its ecology is poorly known. We radio-tracked a female jaú with a total length of 1.5 m that was passed upstream of Funil Dam, rio Grande, to describe its migratory movements, habitat use, linear home range, and diel activity. To track the fish, we made five tracking trips in the period from April, 2003 to January, 2004. In addition to the main body of Funil Reservoir, the fish also used a reservoir-river transition zone located in a branch of Funil Reservoir that flooded part of rio das Mortes. Most of the times, we found the fish in the former beds of streams flooded by the reservoir, at depths that ranged from 8-9 m in... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Catfish; Endangered species; Migration; Home range; Habitat use. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200018 |
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| Oyanedel,Alejandra; Habit,Evelyn; Belk,Mark C.; Solis-Lufí,Katherin; Colin,Nicole; Gonzalez,Jorge; Jara,Alfonso; Muñoz-Ramírez,Carlos. P.. |
| ABSTRACT We document movement patterns and home range of Diplomystes camposensis, an endemic and threatened freshwater catfish from Chile. We tracked the movements of seven individuals of different body size (13.5 to 19 cm SL) using portable radio telemetry equipment to investigate movement patterns in relation to day/night activity and habitat use in the San Pedro River (Valdivia Basin). Tracked movements and model-based analyses revealed that D. camposensis has a large home range and high mobility. The average home range was 0.068163 ± 0.033313 km2, and the average area of higher activity was 0.005646 ± 0.011386 km2. The mean linear home range was 387.4 m. The results also showed that movements were longer during the night, supporting nocturnal habits.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Fragmentation; Habitat use; Kernel; Radio telemetry. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100222 |
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| Fonseca,Alinca Peres da; Volcan,Matheus Vieira; Sampaio,Luís André; Romano,Luís Alberto; Robaldo,Ricardo Berteaux. |
| Given the importance of knowledge of the biology of endangered species for the planning of conservation and management efforts, the aim of this study was to investigate the influence of temperature on the growth of Austrolebias wolterstorffi (Ahl, 1924). To clarify the thermal influence on the growth of the species, temperatures of 16, 20, 24 , and 28°C were tested in triplicate. The present study showed that a water temperature of 28°C is detrimental to the growth of the species. Among the other tested temperatures, it was found that the optimum temperature for growth decreases as an individual ages and is slightly lower for females. It was demonstrated here that males reach a higher weight and length, and grow faster than females, reaching sexual... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Length; Maturity; Weight. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400837 |
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| Damasceno,Júnio S.; Siccha-Ramirez,Raquel; Oliveira,Claudio; Mendonça,Fernando F.; Lima,Arthur C.; Machado,Leonardo F.; Tosta,Vander C.; Farro,Ana Paula C.; Hostim-Silva,Maurício. |
| ABSTRACT The Atlantic goliath grouper, Epinephelus itajara , is a critically endangered species, threatened by illegal fishing and the destruction of its habitats. A number of other closely related grouper species found in the western Atlantic are also fished intensively. While some countries apply rigorous legislation, illegal harvesting followed by the falsification of fish products, which impedes the correct identification of the species, is a common practice, allowing the catch to be marketed as a different grouper species. In this case, molecular techniques represent an important tool for the monitoring and regulation of fishery practices, and are essential for the forensic identification of a number of different species. In the present study,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation genetics; COI; Endangered species; Fishery management; Forensic genetics. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300203 |
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| Vincent, A.C.J.; McPherson, J.M.. |
| 1. Seahorses (Hippocampus spp.), many of which are listed as Vulnerable or Endangered on the IUCN Red List, are traded worldwide as souvenirs, aquarium fish and, primarily, for use in traditional medicines. Given concern over the sustainability of this trade, the genus was added to Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in May 2004. 2. This paper reports findings of the first ever survey of seahorse trade in Africa, conducted in Kenya and Tanzania in May and June 2000. 3. Seahorse trade in Kenya was found to be negligible, with approximately 10 live seahorses exported as aquarium fish annually. Until 1998, however, Kenya may have imported somewhere from 1 to 2.3 t of dried seahorses... |
| Tipo: Journal Contribution |
Palavras-chave: Hippocampus spp; Bycatch; Non-food fisherie; Seahorse trade; Aquatic animals; Endangered species; Http://aims.fao.org/aos/agrovoc/c_2557. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/816 |
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| Dias, Michele; Mikich, Sandra Bos. |
| The Araucaria Forest (AF) once covered 37% of State of Parana, but nowadays less than 1% of mature AF was left. Besides being one of the most threatened Brazilian ecosystems, the AF is also poorly studied. So, the main objective of the present study was to contribute with the knowledge and conservation of Parana state mammals, focusing on AF species. The field study was conducted in the Embrapa Florestas property (25º19’ S – 49º09’ W), that has 301 ha of which 105 ha are covered by disturbed primary AF and the other 196 ha by secondary AF forests and forest plantations. Mammalian records were made twice a week between April 2003 and February 2004 employing direct and indirect methods including visual observations, analysis of vestiges, collection of dead,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammals; Inventory; Conservation; Endangered species; Araucaria Forest. Mamíferos; Inventário; Conservação; Espécies ameaçadas; Floresta com Araucária.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/214 |
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| Ando, Amy Whritenour. |
| This paper conducts a test of the hypothesis that interest groups compete strategically for influence with a policy-making agency. It adapts econometric methodology from the empirical industrial organization literature that was designed to work with discrete game-theoretic models, and uses data on whether or not supporting and opposing interest groups submitted comments to the Fish and Wildlife Service about each of 173 proposals to add new species to the endangered species list. The results imply that groups do respond to variations in the expected costs and benefits of a listing when deciding whether to pressure the agency. There is no support, however, for the hypothesis that the levels of pressure exerted by the groups emerge from the Nash equilibrium... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Interest groups; Strategic competition; Empirical game theory; Endangered species; Institutional and Behavioral Economics; C25; C72; D72; Q28. |
| Ano: 1998 |
URL: http://purl.umn.edu/10732 |
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| Registros recuperados: 78 | |
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