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Registros recuperados: 78 | |
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Fischer, Carolyn. |
Economic models of trade in endangered species products often do not incorporate four focal arguments in the policy debate over trade bans: 1) law-abiding consumers may operate in another market, separate from illegal consumers, that trade would bring online; 2) legal trade reduces stigma, which affects demand of law-abiding consumers; 3) laundering may bring illegal goods to legal markets when trade is allowed; 4) legal sales may affect illegal supply costs. This paper analyzes systematically which aspects of these complicated markets, separately or in combination, are important for determining whether limited legalized trade in otherwise illegal goods can be helpful for achieving policy goals like reducing poaching. |
Tipo: Working or Discussion Paper |
Palavras-chave: Endangered species; Black markets; CITES; Poaching; Stigma; Environmental Economics and Policy; K42; Q21; D11. |
Ano: 2002 |
URL: http://purl.umn.edu/10525 |
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Ando, Amy Whritenour. |
This paper looks for positive spillovers from the legal protection of one species to the welfare of others, and for evidence of economies of scope in the costs associated with protecting species under the Endangered Species Act. The analyses use data on the intensity of interest-group comment activity in response to proposals to protect new species. The results suggest that these phenomena are significant, strengthening arguments that wildlife-protection policy should be shifted towards species groups or ecosystems. However, the findings are also consistent with diminishing public willingness-to-pay for protected species in a given area, a pattern which also has public-policy implications. |
Tipo: Working or Discussion Paper |
Palavras-chave: Economies of scope; Endangered species; Political economy; Interest groups; Environmental Economics and Policy. |
Ano: 1999 |
URL: http://purl.umn.edu/10903 |
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Ferrier, Peyton Michael. |
The United States bans imports of certain agricultural and wildlife goods that can carry pathogens or diseases or whose harvest can threaten wildlife stocks or endanger species. Despite these bans, contraband is regularly uncovered in inspections of cargo containers and in domestic markets. This study characterizes the economic factors affecting agricultural and wildlife smuggling by drawing on inspection and interdiction data from USDA and the U.S. Fish and Wildlife Service and existing economic literature. Findings reveal that agricultural and wildlife smuggling primarily include luxury goods, ethnic foods, and specialty goods, such as traditional medicines. Incidents of detected smuggling are disproportionately higher for agricultural goods originating... |
Tipo: Report |
Palavras-chave: Smuggling; Illicit trade; SPS; Quarantine; Endangered species; CITES; Agribusiness; Agricultural and Food Policy; Financial Economics. |
Ano: 2009 |
URL: http://purl.umn.edu/55951 |
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Mezzatesta, Mariano; Newburn, David A.; Brozovic, Nicholas. |
Many rural landowners within the Western United States do not have access to a secure water supply provided by a major dam or an irrigation district. Such water users must rely instead on groundwater pumping and/or seasonal water flows from tributaries. Some of these agricultural producers choose to store winter stream flows from tributaries within onsite reservoirs to secure their spring/summer water needs. However, regulatory agencies have increased restrictions on surface water storage and diversions to improve instream flows for endangered salmon, thus reducing water security for many landowners not located along the main stem. The majority of salmon habitat is within the tributaries located throughout a watershed. Most research regarding instream... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Instream flow; Salmon; Endangered species; Water; Watershed; Environmental Economics and Policy. |
Ano: 2010 |
URL: http://purl.umn.edu/61485 |
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Abbott, Brant; van Kooten, G. Cornelis. |
Tigers are a threatened species that might soon disappear in the wild. Not only are tigers threatened by deteriorating and declining habitat, but poachers continue to kill tigers for traditional medicine, decoration pieces and so on. Although international trade in tiger products has been banned since 1987 and domestic trade within China since 1993, tigers continue to be poached and Chinese entrepreneurs have established tiger farms in anticipation of their demise. While China desires to permit sale of tiger products from captive-bred tigers, this is opposed on the grounds that it likely encourages illegal killing. Instead, wildlife conservationists lobby for more spending on anti-poaching and trade-ban enforcement. In this study, a mathematical... |
Tipo: Working or Discussion Paper |
Palavras-chave: Endangered species; Extinction; Wildlife farming and bioeconomics; Environmental Economics and Policy; Q57; Q27; C61; F13. |
Ano: 2009 |
URL: http://purl.umn.edu/46994 |
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Ferreira Junior,Ney Telles; Blochtein,Betina; Moraes,João Feliz de. |
Melipona bicolor schencki occurs in southern Brazil and at high elevations in southeastern Brazil. It has potential for use in meliponiculture but this stingless bee species is vulnerable to extinction and we have little knowledge about its ecology. In order to gather essential information for species conservation and management, we made a study of seasonal flight activities in its natural environment. We sampled bees entering the nests with pollen, nectar/water and resin/mud, in five colonies during each season. In parallel, we analyzed the influence of hour of the day and meteorological factors on flight activity. Flights were most intense during spring and summer, with daily mean estimates of 2,100 and 2,333 flights respectively, while in fall and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Flight activities; Guaraipo; Meteorological factors; Species conservation. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000400015 |
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Rocha,Carlos F. D.; Siqueira,Carla da C.; Ariani,Cristina V.. |
Liolaemus lutzae Mertens, 1938 is a critically endangered lizard endemic to the restinga habitat of the state of Rio de Janeiro. We surveyed 25 restinga habitats in order to locate remaining populations, evaluate the status of the species, and determine the nature of local habitat degradation. We found remnant populations of L. lutzae in 18 restinga habitats of six municipalities. The conservation status of each population varied between areas: the population of Grumari, in Rio de Janeiro municipality, is the most preserved and the population of Praia do Forte, in Cabo Frio, is the most disturbed. No L. lutzae were found in Niterói municipality. The most destructive type of habitat degradation identified was the removal of beach vegetation associated with... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Endangered species; Endemic species; Habitat degradation; Population recovery. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300009 |
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Srbek-Araujo,Ana Carolina; Scoss,Leandro M.; Hirsch,André; Chiarello,Adriano G.. |
We report 20 records of Priodontes maximus (Kerr, 1792) collected between 1990 and 2009 in three nature reserves located in forested areas of southeastern Brazil within the Atlantic Forest biome. Seventeen records were collected in Parque Estadual do Rio Doce (PERD), state of Minas Gerais, two in Reserva Biológica de Sooretama and one in Reserva Natural Vale, both located in the state of Espírito Santo. The records were burrows (n = 11), photographs from camera-traps (n = 6), sightings (n = 2) and carcass (n = 1). Given the higher number of records, the PERD seems to maintain the largest population among the three study areas. We searched the literature and found no other recent evidence of the species' presence in the Atlantic forest of Brazil. There are... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Extinction; Forest fragmentation; Xenarthra. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300010 |
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TORRES-MELLADO,GUSTAVO A; ESCOBAR,INELIA; PALFNER,GOTZ; CASANOVA-KATNY,M. ANGÉLICA. |
The five known genera of Gilliesieae have their diversity center in the Mediterranean zone of central Chile, where many of their habitats are threatened by urban expansion, industrial and agroforestry activities, as well as other anthropogenic impacts. Very little is known about the biology of these particular geophytes, the majority of which currently have either vulnerable or endangered status, mainly due to their dispersed and small populations generally associated to remnants of native vegetation. As mycorrhizal associations are essential for soil resource acquisition and stress mitigation in most plants, our objective was to assess the hitherto unknown mycotrophic status of ten species of Gilliesieae from central Chile by qualitative and quantitative... |
Tipo: Journal article |
Palavras-chave: Endangered species; Glomeromycota; Latitudinal transect; Mediterranean climate; Monocotyledoneae. |
Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000200004 |
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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 |
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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 |
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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 |
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Registros recuperados: 78 | |
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