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1.
Nature ; 625(7993): 85-91, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38172362

RESUMEN

The world's population increasingly relies on the ocean for food, energy production and global trade1-3, yet human activities at sea are not well quantified4,5. We combine satellite imagery, vessel GPS data and deep-learning models to map industrial vessel activities and offshore energy infrastructure across the world's coastal waters from 2017 to 2021. We find that 72-76% of the world's industrial fishing vessels are not publicly tracked, with much of that fishing taking place around South Asia, Southeast Asia and Africa. We also find that 21-30% of transport and energy vessel activity is missing from public tracking systems. Globally, fishing decreased by 12 ± 1% at the onset of the COVID-19 pandemic in 2020 and had not recovered to pre-pandemic levels by 2021. By contrast, transport and energy vessel activities were relatively unaffected during the same period. Offshore wind is growing rapidly, with most wind turbines confined to small areas of the ocean but surpassing the number of oil structures in 2021. Our map of ocean industrialization reveals changes in some of the most extensive and economically important human activities at sea.


Asunto(s)
Actividades Humanas , Industrias , Océanos y Mares , Imágenes Satelitales , Humanos , COVID-19/epidemiología , Aprendizaje Profundo , Fuentes Generadoras de Energía/estadística & datos numéricos , Abastecimiento de Alimentos/estadística & datos numéricos , Sistemas de Información Geográfica , Mapeo Geográfico , Actividades Humanas/economía , Actividades Humanas/estadística & datos numéricos , Caza/estadística & datos numéricos , Industrias/economía , Industrias/estadística & datos numéricos , Navíos/estadística & datos numéricos , Viento
2.
Nature ; 623(7985): 100-105, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37880359

RESUMEN

Illegal harvesting and trading of wildlife have become major threats to global biodiversity and public health1-3. Although China is widely recognized as an important destination for wildlife illegally obtained abroad4, little attention has been given to illegal hunting within its borders. Here we extracted 9,256 convictions for illegal hunting from a nationwide database of trial verdicts in China spanning January 2014 to March 2020. These convictions involved illegal hunting of 21% (n = 673) of China's amphibian, reptile, bird and mammal species, including 25% of imperilled species in these groups. Sample-based extrapolation indicates that many more species were taken illegally during this period. Larger body mass and range size (for all groups), and proximity to urban markets (for amphibians and birds) increase the probability of a species appearing in the convictions database. Convictions pertained overwhelmingly to illegal hunting for commercial purposes and involved all major habitats across China. A small number of convictions represented most of the animals taken, indicating the existence of large commercial poaching operations. Prefectures closer to urban markets show higher densities of convictions and more individual animals taken. Our results suggest that illegal hunting is a major, overlooked threat to biodiversity throughout China.


Asunto(s)
Animales Salvajes , Biodiversidad , Caza , Animales , Anfibios , Aves , China , Bases de Datos Factuales , Especies en Peligro de Extinción/economía , Especies en Peligro de Extinción/legislación & jurisprudencia , Especies en Peligro de Extinción/estadística & datos numéricos , Caza/economía , Caza/legislación & jurisprudencia , Caza/estadística & datos numéricos , Mamíferos , Reptiles
3.
PLoS Negl Trop Dis ; 16(1): e0010100, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35041681

RESUMEN

BACKGROUND: Leptospirosis is a zoonotic disease with a worldwide distribution, caused by pathogenic serovars in the genus Leptospira. Feral pigs are known carriers of Leptospira species and pig hunting using dogs is a common recreational activity in Queensland, Australia. METHODOLOGY AND PRINCIPAL FINDINGS: This study aimed to determine the seroprevalence of Leptospira spp. serovars in pig-hunting dogs above the Tropic of Capricorn in Queensland and by establishing the geographic distribution, serovars and incidence of human cases of leptospirosis in Queensland, identify potential overlap between human and canine exposure. We also explored the knowledge and risk-taking behaviours of pig-hunting dog owners towards zoonotic diseases. Ninety-eight pig-hunting dogs deemed healthy by physical examination and owned by 41 people from Queensland had serum submitted for Microscopic Agglutination Testing (MAT) to determine antibody titres against Leptospira serovars, while 40/41 dog owners completed a survey on their knowledge of diseases relating to pig hunting. Human leptospirosis cases (n = 330) notified to Queensland Health between 2015-2018 were analysed. Approximately one quarter (23/87; 26%) of unvaccinated pig-hunting dogs were seropositive to Leptospira spp. Although harder to interpret, 8/11 (73%) vaccinated dogs were seropositive to Leptospira spp. Pig hunters may be more likely to contract leptospirosis compared with the general Queensland population, based on responses from surveyed hunters. The highest concentration of human leptospirosis was in the wet tropics region of Far North Queensland. There was little overlap between the serovars dogs were exposed to and those infecting humans. The dominant serovar identified in unvaccinated dogs was Australis (13/23; 57%), with serovar Arborea (36/330; 10.9%) responsible for the highest number of human leptospirosis cases. Topaz was the second most common serovar in both humans and dogs and was previously unrecorded in Australian dogs. Most hunters surveyed used hand washing as a zoonotic disease risk reduction technique. CONCLUSIONS: Leptospirosis is an emerging disease of growing significance. The infection requires a 'one health' approach to understand its epidemiology. With shifting climatic patterns influencing human-animal-environment interactions, ongoing monitoring of diseases like leptospirosis is critical to helping prevent infection of individuals and disease outbreaks.


Asunto(s)
Enfermedades de los Perros/epidemiología , Leptospirosis/epidemiología , Leptospirosis/veterinaria , Vacunación/veterinaria , Animales , Australia/epidemiología , Vacunas Bacterianas/inmunología , Enfermedades Transmisibles Emergentes/epidemiología , Enfermedades Transmisibles Emergentes/microbiología , Enfermedades de los Perros/microbiología , Perros , Femenino , Desinfección de las Manos , Humanos , Caza/estadística & datos numéricos , Leptospira/inmunología , Masculino , Equipo de Protección Personal/estadística & datos numéricos , Queensland/epidemiología , Porcinos/microbiología , Enfermedades de los Porcinos/microbiología
4.
PLoS One ; 16(12): e0261198, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34928981

RESUMEN

Overhunting typically increases during and after armed conflicts, and may lead to regional-scale defaunation. The mitigation of hunting impacts is complex because, among other reasons, several intrinsic and extrinsic motivations underpin the elevated deployment of hunting practices. Here we present the first study focusing on these motivations in a post-war zone. Following persistently heavy hunting pressure during the 27-year Angolan civil war, the offtake of small to medium-bodied species has increased recently as a result of large mammal depletion. However, prey choice associated with different motivations varied in terms of species trophic level and body size. While most residents hunted large-bodied species to maximize revenues from wildlife trade, many low-trophic level smaller species were harvested to meet local subsistence demands because they were more palatable and could be captured using artisanal traps near hunters' households. Mainly low-trophic level species were killed in retaliation for crop-raiding or livestock depredation. Considering all game species sampled in this study, 96% were captured to attend two or more motivations. In addition, hunting associated with different motivations was partitioned in terms of age and gender, with prey acquisition for the wildlife trade primarily carried out by adult men, while hunting to meet local subsistence needs and inhibit human-wildlife conflicts were carried out by adult men and women, children and even the elderly. In natural savannah areas lacking fish as a source of protein, a higher number of species was selected to supply both the meat trade and subsistence, while more species in forest areas were targeted for trade in animal body parts and conflict retaliation. Finally, local commerce in bushmeat and other body parts accrued higher domestic revenues compared to any alternative sources of direct and indirect income. However, these financial benefits were at best modest, largely unsustainable in terms of prey population collapses, and generated high long-term costs for the local to regional scale economy and native biodiversity.


Asunto(s)
Biodiversidad , Cadena Alimentaria , Caza/estadística & datos numéricos , Carne/análisis , Motivación , Conducta Predatoria , Adulto , Anciano , Anciano de 80 o más Años , Animales , Animales Salvajes , Conservación de los Recursos Naturales , Femenino , Bosques , Humanos , Masculino , Persona de Mediana Edad , Dinámica Poblacional , Encuestas y Cuestionarios , Adulto Joven
5.
Am J Trop Med Hyg ; 104(2): 593-603, 2020 12 21.
Artículo en Inglés | MEDLINE | ID: mdl-33350367

RESUMEN

Sera from white-tailed deer (WTD, Odocoileus virginianus) hunter-harvested throughout New York State (NYS), 2007-2015, were tested by plaque reduction neutralization for antibodies against nine mosquito-borne viruses from the families Peribunyaviridae, Flaviviridae, and Togaviridae. Overall, 76.1% (373/490) of sampled WTD were seropositive against at least one virus, and 38.8% were exposed to multiple viruses. The seropositivity rate in adult WTD (78.0%) was significantly greater (P < 0.0001) than that in fawns (47.7%). Neutralizing antibodies against California serogroup viruses were most common in WTD sampled across all regions (67.1%), followed by the Bunyamwera serogroup (BUN) (37.6%). Jamestown Canyon and Cache Valley orthobunyaviruses were responsible for most California and BUN infections, respectively. Seroprevalence rates to West Nile virus were higher in samples originating from Long Island (LI) (19.0%) than in those originating from the central (7.3%), western (5.0%), and Hudson Valley (4.4%) regions of NYS. Antibodies to Eastern equine encephalitis virus were seen primarily in WTD from central NYS (5.1%), where annual enzootic activity occurs, but low rates were documented in western NYS (1.4%) and LI (1.7%). Low rates of Potosi and LaCrosse orthobunyavirus, and Highlands J virus antibodies were detected over the course of this investigation. St. Louis encephalitis virus (or a closely related virus) antibodies were detected in samples collected from central and western NYS, suggesting local virus transmission despite a lack of evidence from routine mosquito surveillance. Serologic results demonstrate the value of WTD in NYS as an indicator of arbovirus distribution and recent transmission on a relatively fine spatial scale.


Asunto(s)
Anticuerpos Antivirales/sangre , Culicidae/virología , Ciervos/virología , Caza/estadística & datos numéricos , Enfermedades Transmitidas por Vectores/virología , Virus/inmunología , Animales , Ciervos/inmunología , Femenino , Masculino , Pruebas de Neutralización , New York/epidemiología , Estudios Seroepidemiológicos , Enfermedades Transmitidas por Vectores/epidemiología , Enfermedades Transmitidas por Vectores/inmunología , Virus/clasificación , Virus/patogenicidad
6.
Braz. j. biol ; 82: 1-13, 2022. map, tab, graf
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1468520

RESUMEN

Amazonian livelihoods are largely dependent on rivers, with local protein consumption mainly relying on several species of fish. The UJER (Upper Juruá Extractive Reserve - Reserva Extrativista do Alto Juruá) is located in the state of Acre, bordering Peru and several indigenous areas. Here we summarize the data we collected in 1993/1994 on the population living along the banks of the Juruá, Tejo, Bagé, Igarapé São João and Breu rivers on crop cultivation, animal husbandry, and use of game and fish resources. We interviewed 133 individuals (94 on the Juruá and Tejo, 16 on Bagé, 16 on Igarapé São João and 7 on Breu rivers). Our results include a comprehensive description on local livelihoods, including the most important fish species for local subsistence considering gender and seasonality, the main husbandry and game species, and the items cultivated on the local agriculture. Whenever more recent information was available in the literature, we compared changes in livelihoods over time in the same region and also with the recent patterns observed in the Lower and in the Middle Juruá River. We hope to provide useful information to understand temporal changes in local livelihoods, which can help adapt and shape the ecological management in the region.


Comunidades da Amazônia são amplamente dependentes dos rios, com o consumo local de alimentos baseado em várias espécies de peixes. A UJER (Reserva Extrativista do Alto Juruá - Reserva Extrativista do Alto Juruá) está localizada no estado do Acre, na fronteira com o Peru e com várias áreas indígenas. Aqui resumimos os dados que coletamos em 1993/1994 da população que vive às margens dos rios Juruá, Tejo, Bagé, Igarapé São João e Breu sobre cultivo, criação de animais e uso de recursos de caça e peixes. Foram entrevistados 133 indivíduos (94 nos rios Juruá e Tejo, 16 em Bagé, 16 em Igarapé São João e 7 no rio Breu). Nossos resultados incluem uma descrição abrangente dos meios de subsistência locais, incluindo as espécies de peixes mais importantes para a subsistência local, considerando gênero e sazonalidade, bem como as principais espécies de criação, de caça e os itens cultivados na agricultura local., Quando foi possível obter informações da literatura, comparamos as mudanças nos meios de subsistência ao longo do tempo na mesma região e também com os padrões recentes observados no Baixo e no Médio Rio Juruá. Esperamos fornecer informações úteis para o entendimento das mudanças temporais nos meios de subsistência locais, o que pode ser útil ao manejo ecológico da região.


Asunto(s)
Abastecimiento de Alimentos/economía , Biodiversidad , Caza/estadística & datos numéricos , Explotaciones Pesqueras/estadística & datos numéricos
7.
Neotrop. ichthyol ; 13(3): 625-636, July-Sept. 2015. tab, ilus
Artículo en Inglés | LILACS | ID: lil-760446

RESUMEN

Cichla piquiti is endemic to the Tocantins-Araguaia river basin, but information about its biology is restricted to populations introduced in other basins. In order to fill this gap, we investigated the feeding ecology and reproductive dynamics of C. piquitiin Lajeado reservoir, rio Tocantins. A total of 270 fish were collected between November 2010 and October 2011. The diet is rich and composed of at least 23 resources, predominantly fish (at least 19 species). We observed no clear influence of sex, periods and ontogeny on diet, which was basically composed of Characidae and Cichlidae. Considering its reproductive dynamics, immature, reproductive and non-reproductive fish were recorded during the whole study, and reproductive effort did not differ among periods. Cichla piquiti also showed no pattern of energy allocation between reproductive and somatic activities. These results indicate that reproduction is occurring throughout the year and that this activity is not synchronized among individuals. In conclusion, this study presented valuable information on the ecology of C. piquiti within its natural range, which may subsidize management programs to conserve local stocks. This information may also provide theoretical insights to explain why C. piquiti, a voracious predator, is so harmful when introduced in non-Amazonian reservoirs.


Cichla piquitié uma espécie endêmica da bacia Tocantins-Araguaia, porém o conhecimento sobre sua biologia está amparado no estudo de populações introduzidas em outras bacias. Para preencher essa lacuna, o presente estudo investigou a ecologia alimentar e reprodutiva de C. piquiti no reservatório de Lajeado, rio Tocantins. Um total de 270 peixes foi coletado entre novembro/2010 e outubro/2011, na região superior do reservatório. A dieta da espécie é rica e envolveu a ingestão de pelo menos 23 recursos, com predomínio de peixes (pelo menos 19 espécies). Não observamos padrão de variação na dieta entre os sexos, períodos e ontogenia, com predomínio no consumo de Characidae e Cichlidae. Considerando a dinâmica reprodutiva, peixes imaturos, em reprodução e repouso foram registrados ao longo do ano, e o esforço reprodutivo (IGS) não diferiu entre os períodos. Cichla piquiti também não apresentou padrão claro de alocação de energia entre atividades somáticas e reprodutivas. Esses resultados indicam que a reprodução ocorre durante todo o ano e que essa atividade não é sincronizada entre os indivíduos. Concluindo, o presente estudo apresentou informações importantes sobre a ecologia de C. piquiti em sua área de distribuição natural, que devem embasar programas de manejo para a conservação dos estoques na região. Essas informações devem também fornecer suporte teórico para explicar porque C. piquiti, um predador voraz, é tão danoso quando introduzido em reservatórios não-Amazônicos.


Asunto(s)
Animales , Characidae , Caza/análisis , Caza/estadística & datos numéricos , Caza/historia , Brasil , Ecología
9.
Buenos Aires; OPS; 1988. 244 p. mapas, ilus, tab. (66812).
Monografía en Español | BINACIS | ID: bin-66812

RESUMEN

Situación de la producción de materia prima para alimentos. Análisis y nivel de producción ganadera, de aves, pescado y productos agrícolas desarrollado por provincias. Población consumidora y mano de obra. Localización de las industrias. Organismos de control a nivel nacional y provincial. Marco legal. Actividades de inspectoría y de laboratorios. Formación de recursos humanos. Enfermedades transmitidas por alimentos. Investigación epidemiológica de los brotes. Notificaciones médicas obligatoria. Efectos económicos de las pérdidas y rechazo de alimentos


Asunto(s)
Programas y Políticas de Nutrición y Alimentación , Legislación Alimentaria , Calidad de los Alimentos , Control de Calidad , Caza/economía , Caza/estadística & datos numéricos , Agricultura/economía , Agricultura/estadística & datos numéricos , Aves de Corral , Producción de Cultivos/economía , Producción de Cultivos/estadística & datos numéricos , Producción de Alimentos/economía , Producto Interno Bruto , Producto Interno Bruto , Análisis de los Alimentos
10.
Buenos Aires; INDEC; 1993. 419 p. ilus, tab. (66969).
Monografía en Español | BINACIS | ID: bin-66969

RESUMEN

El Instituto Nacional de Estadística y Censos (INDEC), dependiente de la Secretaría de Programación Económica del Ministerio de Economía y Obras y Servicios Públicos, reinicia con esta obra la publicación del Anuario Estadístico de la República Argentina. De esta manera se da respuesta a la creciente demanda de información actualizada tanto del sector público como del privado. El Anuario consta de un capítulo de información general y geográfica sobre el país y de ocho capítulos que agrupan estadísticas sobre distintos aspectos demográficos, sociales y económicos, incluido las cuentas nacionales, cuyo detalle se encuentra en el índice general. Los cuadros contienen datos anuales para el total del país y, según los temas, también desagregados por provincia. El contenido de este Anuario está asimismo disponible en soporte magnético


Asunto(s)
Humanos , Masculino , Femenino , Recién Nacido , Lactante , Preescolar , Niño , Adolescente , Adulto , Persona de Mediana Edad , Anciano , Argentina , Características de la Población , Estadísticas de Salud , Tasa de Natalidad , Indicadores Económicos , Pobreza/estadística & datos numéricos , Condiciones Sociales/estadística & datos numéricos , Mortalidad/tendencias , Estadísticas de Atención Médica , Estadísticas Vitales , Escolaridad , Vivienda/estadística & datos numéricos , Mortalidad Materna/tendencias , Mortalidad Infantil , Mortalidad Infantil/tendencias , Comercio/estadística & datos numéricos , Clima , Financiación de la Atención de la Salud , Seguro/estadística & datos numéricos , Seguro de Vida/estadística & datos numéricos , Seguro por Accidentes/estadística & datos numéricos , Aseguradoras/estadística & datos numéricos , Seguridad Social/estadística & datos numéricos , Caza/estadística & datos numéricos , Minería/estadística & datos numéricos , Economía/estadística & datos numéricos , Combustibles Fósiles/estadística & datos numéricos , Electricidad , Transportes/estadística & datos numéricos , Presupuestos/estadística & datos numéricos , Impuestos , Producto Interno Bruto , Petróleo/estadística & datos numéricos , Industria Química/estadística & datos numéricos , Agricultura/estadística & datos numéricos , Empleo/estadística & datos numéricos , Educación/estadística & datos numéricos , /estadística & datos numéricos , Derecho Penal/estadística & datos numéricos
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