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Registros recuperados: 27
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A DYNAMIC MODEL OF THE U.S. ALLIGATOR INDUSTRY: LESSONS FOR SUSTAINABLE USE AND FARM MANAGEMENT AgEcon
Heykoop, Jerry; Frechette, Darren L..
The American alligator has made a remarkable comeback from the brink of extinction. Commercial alligator production is emerging as an important industry in the South. The industry shows similarities to other livestock industries. This paper draws comparisons with other livestock industries to motivate a structural model of the alligator industry.
Tipo: Conference Paper or Presentation Palavras-chave: Alligators; Endangered; Threatened; Wildlife; Sustainable use; Livestock Production/Industries; Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21493
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Agriculture and the conservation of wildlife biodiversity – comparative analysis of policies in the USA and the EU (PowerPoint) AgEcon
Nitsch, Heike; Manale, Andrew; Osterburg, Bernhard.
Presented to USDA Economists Group, Washington, DC
Tipo: Conference Paper or Presentation Palavras-chave: Wildlife; Biodiversity; Agriculture; Cross compliance; Agricultural and Food Policy; Environmental Economics and Policy; Land Economics/Use; Q.
Ano: 2009 URL: http://purl.umn.edu/51929
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Antarctic Tourists, Wildlife and the Environment: Attractions and Reactions to Antarctica AgEcon
Tisdell, Clement A.; Wilson, Clevo.
Provides background on the development and nature of Antarctic tourism and associated environmental issues, as well as agreements and regulations affecting environmental management in Antarctica. Following an outline of the survey methodology and provision of information on the socioeconomic profiles of the respondents, results of a survey of Antarctic tourists on the Russian registered ship the ‘Akademik Ioffe’ are reported. The importance of Antarctic wildlife as an attraction for these Antarctic tourists is then given particular attention. The study considers amongst other things how important Antarctic wildlife was in convincing these tourists to undertake their trip to Antarctica, the importance to the tourists of seeing different species of...
Tipo: Working or Discussion Paper Palavras-chave: Antarctica; Tourism; Wildlife; Antarctic Treaty; Madrid Protocol; Environmental protection.; Environmental Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/51295
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Assessment of CBNRM Best Practices in Tanzania. OceanDocs
Kajuni, A.; Alcorn, J.; Winterbottom, B..
Tipo: Report Palavras-chave: Coastal zone; Water resources; Community participation; Pastoral society; Wildlife; Forests; Http://aims.fao.org/aos/agrovoc/c_37662; Http://aims.fao.org/aos/agrovoc/c_28741; Http://aims.fao.org/aos/agrovoc/c_8389; Http://aims.fao.org/aos/agrovoc/c_3062.
Ano: 2002 URL: http://hdl.handle.net/1834/929
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Bioeconomic Model of Community Incentives for Wildlife Management Before and After CAMPFIRE AgEcon
Fischer, Carolyn; Muchapondwa, Edwin; Sterner, Thomas.
This paper formulates a bioeconomic model to analyze community incentives for wildlife management under benefit-sharing programs like the Communal Areas Management Programme for Indigenous Resources (CAMPFIRE) in Zimbabwe. Two agents influence the wildlife stock: a parks agency determines hunting quotas, and a local community chooses to either aid or discourage outside poachers. Wildlife generates revenues from hunting licenses and tourism; it also intrudes on local agriculture. We consider two benefit-sharing regimes: shares of wildlife tourism rents and shares of hunting licenses. Resource sharing does not necessarily improve community welfare or incentives for wildlife conservation. Results depend on the exact design of the benefit shares, the size of...
Tipo: Working or Discussion Paper Palavras-chave: Bioeconomic; CAMPFIRE; Community; Poaching; Wildlife; Benefit sharing; Resource /Energy Economics and Policy; H41; Q20.
Ano: 2005 URL: http://purl.umn.edu/10717
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Cardiovascular assessment in Female Spotted Paca ( Cuniculus paca ) Arq. Bras. Med. Vet. Zootec.
Almeida,V.T.; Uscategui,R.A.R.; Restan,W.A.Z.; Feliciano,M.A.R.; Ortiz,E.M.; Kawanami,A.E.; Barros,F.F.P.C.; Santos,V.J.C.; Vicente,W.R.R..
ABSTRACT Aiming to provide cardiovascular morphophysiology information on the Cuniculus paca, an important neotropical rodent, eight healthy adult females of this species were evaluated three times by echocardiography under general anesthesia with isoflurane every 15 days. The exams were performed by a single experienced evaluator with the animals positioned in right and left decubitus. Posteriorly, two expert evaluators measured the cardiac chambers, walls and flow patterns, by B-mode, M-mode, and Doppler ultrasonography. The resulting values were compared among evaluators and periods by the Bland-Altman agreement test and several descriptive statistics were presented for each parameter. Echocardiographic images were obtained between the second and fifth...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Echocardiography; Rodents; Neotropical; Wildlife.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000100061
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Cholangiocarcinoma in an American Rhea (Rhea Americana araneipes) Ciência Rural
Rocha,Paulo Ricardo Dell'Armelina; Lopes,Letícya Lerner; Arruda,Laura Peixoto de; Pescador,Caroline Argenta; Cruz,Raquel Aparecida Sales da; Colodel,Edson Moleta.
Cholangiocarcinomas are neoplasms that originate from the bile duct epithelium. The present case described a cholangiocarcinoma in an adult female American Rhea (Rhea Americana araneipes) by means of gross, histopathology and immunohistochemistry. Irregular, firm, multifocal, yellow-white masses, measuring from 0.4 to 6cm in diameter were observed in both liver lobes. At the cut surface, multiple firm nodules filled with connective tissue were present. Microscopically, the neoplasia was composed of small, irregular, gland-like structures of neoplastic cells surrounded by connective tissue. The cells resembled epithelial cells of the hepatic biliary ducts. Neoplastic cells were positive for cytokeratin and negative for vimentin. This is the first report of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cholangiocarcinoma; Rhea; Immunohistochemistry; Wildlife.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200284
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Comparison of infection by Brucella spp. in free-ranging and captive wild animals from São Paulo State, Brazil J. Venom. Anim. Toxins incl. Trop. Dis.
Antunes,JMAP; Machado,GP; Costa,LF; Fornazari,F; Cipriano,JRB; Appolinário,CM; Allendorf,SD; Bagagli,E; Teixeira,CR; Megid,J.
The aim of the current study was to evaluate the infection rate by Brucella spp. in wild and in captive animals. Serum samples from 121 animals (94 free-ranging and 27 captive) of different mammal species were evaluated. Sera were submitted to rose Bengal test (RBT) for screening and serum agglutination tests (SAT) and 2-mercaptoethanol test (2-ME) for confirmatory results. Nine animals (five free-ranging and four captive) tested positive in RBT, but negative in the confirmatory tests. Several domestic animal diseases that have control programs are not focused on wild reservoirs, such as brucellosis in Brazil. The study of new reservoirs in wildlife is essential to prevent emerging diseases.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brucellosis; Wildlife; Zoonosis.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000400017
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CONTRACTING OVER COMMON PROPERTY: COST-SHARE CONTRACTS FOR PREDATOR CONTROL AgEcon
Yoder, Jonathan K..
Predator control cost-share contracts among livestock producers in North America date back to 1630. A model is developed which provides refutable implications for the structure and distribution of these contracts over time and space. Historical and contemporary state and county level data on sheep producer coyote control generally support the model.
Tipo: Conference Paper or Presentation Palavras-chave: Contract theory; Wildlife; Livestock production; Industrial Organization; Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21657
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Contribution of the wildlife in ecological restoration projects in Brazil PFB - Pesquisa Florestal Brasileira
Campos, Wanuza Helena; Miranda Neto, Aurino; Peixoto, Helberth José Cardoso; Godinho, Leandro Braga; Silva, Elias.
The success in the process of restoration and maintenance of the dynamics of an ecosystem is highly dependent on the capacity of species to promote interspecific interactions among the various life forms. These interactions create a favorable environment for the ecological restoration of degraded ecosystems. Thus, by review the literature, the objective of this study is to report the contribution and use of different animal groups in carrying out ecological restoration projects in Brazil. The fruit-eating birds and mammals and also other animals such as reptiles, fish and insects have been highlighted as tools to aid environmental ecological restoration projects. Techniques for attracting animals and consequent arrival of seedlings in a degraded ecosystem...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Wildlife; Ecological succession Recursos Florestais; Ecologia Florestal; Recuperação de Áreas Degradadas Biodiversidade; Fauna silvestre; Sucessão ecológica.
Ano: 2012 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/398
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DEPREDATION CLAIM BEHAVIOR AND TOLERANCE OF WILDLIFE IN WYOMING AgEcon
Van Tassell, Larry W.; Yang, Bozheng; Phillips, Clynn.
Wyoming Game and Fish Department depredation payments were established to increase landowner tolerance toward, and this the supply of, certain types of wildlife. This study examined how socio-economic and demographic characteristics of farmers and ranchers in Wyoming relate to tolerance toward wildlife and depredation claim submission. The severity of depredation and landowner satisfaction with the depredation policy were evaluated. The financial stability and economic intent of farmers and ranchers significantly influenced tolerance toward wildlife. Landowners tended to be less tolerant of depredation ensuing from elk. The complexity of the submission process was a deterrent to damage claim submissions.
Tipo: Journal Article Palavras-chave: Depredation; Probit model; Wildlife; Resource /Energy Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/15394
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Detection of Mycobacterium avium subsp. paratuberculosis in a cattle/pudu interface Arq. Bras. Med. Vet. Zootec.
Salgado,M.; Aleuy,O. A.; Sevilla,I. A.; Troncoso,E..
ABSTRACTMycobacterium avium subsp. paratuberculosis (Map) is the etiological agent of paratuberculosis. In Chile, information about Map isolation from both domestic ruminant and wildlife species has been accumulating, but it has to be extended to other species. The present study focuses specifically on one wild grazing species, the pudu (Pudu puda), one of the less known South American deer considered an endangered species that shares pastures with cattle in southern Chile, where the greatest part of the country's dairy cattle population is located. Convenient samples from 3 pudus were collected from one dairy farm where Map infection had previously been confirmed in cattle. All three pudus shed the bacterium in feces and the isolates are the same type of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Paratuberculosis; Map; Wildlife; Infection; Spillover.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000501205
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Dieta e nutricao de crocodilianos. Infoteca-e
SANTOS, S.A..
A familia Crocodylidae inclui tres subfamilias: Crocodylinae, Alligatorinae e Gavialinae (Bellairs, 1987). Nessas, existem 22 especies de crocodilianos reconhecidas, das quais 15 sao usadas comercialmente para manufatura de artigos de luxo. No mundo em geral, os crocodilianos estao sendo aproveitados economicamente de tres formas: (1) "wild harvest" - manejo extensivo na natureza, geralmente seguindo criterios de extracao e monitoramento; (2) "ranching" - os ovos ou filhotes sao apanhados na natureza e criados ate o tamanho de abate e (3) "farming" - criacao englobando todo o ciclo reprodutivo da especie (Campos et al., 1994). O interesse pela criacao de jacares em cativeiro tem aumentado no Brasil e em muitos paises. No entanto, os criadores tem...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Animal silvestre; Crocodilo; Nutricao; Jacare; Dieta; Wildlife; Crocodile; Diet; Nutrition.
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/792179
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Dynamic Processes in Contingent Valuation: A Case Study Involving the Mahogany Glider AgEcon
Tisdell, Clement A.; Wilson, Clevo; Swarna Nantha, Hemanath.
This paper reports the results of an experiment involving a sample of 204 members of the public who were assessed on three occasions about their willingness to pay for the conservation of the mahogany glider. They were asked this question prior to information being provided to them about the glider and other focal wildlife species; after such information was provided, and finally after participants had had an opportunity to see live specimens of this glider. The mean willingness to pay of the relevant samples are compared and found to show significant variations. Theories are considered that help explain the dynamics of these variations. Serious concerns are raised about the capacity of information provision to reveal ‘true’ contingent valuations of public...
Tipo: Working or Discussion Paper Palavras-chave: Awareness; Contingent valuation; Dynamic processes; Experiential learning; Information; Wildlife; Willingness to pay; Environmental Economics and Policy; D83; D84; Q51; Q57.
Ano: 2004 URL: http://purl.umn.edu/51414
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Economics of Controlling Vertebrate Wildlife: the Pest-Asset Dichotomy and Environmental Conflict AgEcon
Tisdell, Clement A..
Some wildlife species are agricultural pests (or otherwise a problem) but their populations are often valued by other than agriculturalists or by those not adversely affected by them directly. For non-farmers, the population levels of such wildlife are frequently pure public goods. This is one source of market failure in the economically optimal social control of an (agricultural) pest of this type. Secondly, if the species is geographically mobile, externalities occur between farmers (or other individuals) in the control of the species, and individuals ignore these spillovers in controlling pest species. Simple analysis is used to show that depending on the relative strength of these opposing types of market failure, farmers (or others) may excessively...
Tipo: Working Paper Palavras-chave: Agriculture; Market failure; Pest control; Pure public goods; West Bengal; Wildlife; Zoonoses.; Environmental Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/122727
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Effects of social change on wildlife consumption taboos in northeastern Madagascar Ecology and Society
Golden, Christopher D; Harvard School of Public Health, Department of Environmental Health; Wildlife Conservation Society, Wildlife Health & Health Policy, HEAL (Health & Ecosystems: Analysis of Linkages) Program; golden@hsph.harvard.edu; Comaroff, Jean; Departments of African and African American Studies and Anthropology, Harvard University; jeancomaroff@fas.harvard.edu.
In Madagascar, the constellation of taboos serves as a form of informal regulatory institution and is foundational to Malagasy culture, regardless of class, ethnic group affiliation, and educational background. Many researchers have credited rapid social change as a crucial mechanism for disturbing taboos. Others suggest that taboos are innately historical. However, very little empirical research has assessed the effects of social change on taboos or quantified the stability of taboo systems over time. Here, we use a case study of the ensemble of taboos in northeastern Madagascar, still a critical aspect of social life there, as a lens through which we investigate its degree of stability over time. Our aim was: (1) to describe the food taboos of local...
Tipo: Peer-Reviewed Reports Palavras-chave: Bushmeat; Conservation policy; Cultural change; Hunting; Immigration; Migration; Modernization; Religion; Wildlife.
Ano: 2015
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Environmental and social values of river water: examples from the Menik Ganga, Sri Lanka. AgEcon
Dissanayake, Priyanka; Smakhtin, Vladimir U..
Many decisions on water allocation in river basins are made on economic grounds. Environmental and social benefits of water should also be considered in river basin management, and attempts should be made to value them similarly. This is not a straightforward task and very few studies have directly addressed this issue to date. In this paper, the Menik Ganga (River) in southern Sri Lanka is used as a case study to attempt and evaluate the costs and benefits of environmental water allocations, referred to as ‘environmental flows’ (EF). In this study, a broad definition of EF is used: the components of EF evaluated include the requirements of the religious festival, the requirements of the Yala National Park, the requirements of the Pilinnawa Coastal Wetland...
Tipo: Working or Discussion Paper Palavras-chave: Rivers; Ecosystems; Wetlands; Wildlife; Fisheries; Water allocation; Water requirements; Case studies; Economic evaluation; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/91876
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First report of paratuberculose in Southern Pudu deer (Artyodactila: Cervidae) Arq. Bras. Med. Vet. Zootec.
González-Acuña,D.; Neira-Ramirez,V.; Moreno-Salas,L.; Quezada,M..
Descreve-se o primeiro caso de paratuberculose em veado pudu-do-sul (Pudu pudu). O animal foi encontrado na cidade de Concepción, centro sul do Chile, em péssimas condições e com sinais claros de diarréia. Internamente apresentava séria atrofia de gordura no coração, lesões histológicas nos pulmões, fígado, baço e rins, e injúrias intestinais. Diferentes amostras foram preparadas com Ziehl-Neelsen, e os linfonodos mesentéricos presentes no íleo foram fortemente positivos para a bactéria resistente ao ácido.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Southern Pudu; Paratuberculosis; Wildlife; Chile.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000400033
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Long-term ecological research in the forests of the United States: Key lessons for its application in Chile and around the world RChHN
FRANKLIN,JERRY F; SWANSON,MARK E.
Long-term ecological research addresses questions to which short-term research projects cannot effectively respond because of the temporal scales over which many ecosystem processes operate. In North America, this type of research has yielded important information on key processes and organisms in many forest types, from eastern broadleaf forests to the coniferous forests of the west, and from tropical to boreal latitudes. Long-term ecological research (that conducted at the decade scale or longer) in the forests of North America has included watershed studies, silvicultural trials, establishment of permanent plots to assess forest demographics, and the study of disturbance regimes and predator-prey systems. Instituting such research in forest ecosystems...
Tipo: Journal article Palavras-chave: Demographics; Long-term ecological research; Multidisciplinary; Watersheds; Wildlife.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000100011
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Setting population targets for mammals using body mass as a predictor of population persistence ArchiMer
Hilbers, Jelle P.; Santini, Luca; Visconti, Piero; Schipper, Aafke M.; Pinto, Cecilia; Rondinini, Carlo; Huijbregts, Mark A. J..
Conservation planning and biodiversity assessments need quantitative targets to optimize planning options and assess the adequacy of current species protection. However, targets aiming at persistence require population-specific data, which limits their use in favor of fixed and non-specific targets, likely leading to unequal distribution of conservation efforts among species. Here we propose a method to derive equitable population targets, which are quantitative targets of population size that ensure equal probabilities of persistence across a set of species, and can be easily inferred from species-specific traits. We applied population dynamics models across a range of life-history traits representative for mammals, and estimated minimum viable population...
Tipo: Text Palavras-chave: Allometry; Conservation biology; Conservation target; Extinction; Minimum viable population; Population viability analysis; Wildlife; Wildlife management.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00353/46387/46013.csv
Registros recuperados: 27
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