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1.
Conserv Biol ; 38(5): e14358, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39248733

RESUMEN

Monitoring wildlife trade dynamics is an important initial step for conservation action and demand reduction campaigns to reduce illegal wildlife trade. Studies often rely on one data source to assess a species' trade, such as seizures or the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) trade data. Each database provides useful information but is often incomplete. Combining information from multiple sources helps provide a more complete understanding of trade. A recent rapid increase in demand for helmeted hornbill (Rhinoplax vigil) casques (a brightly colored, solid keratinous rostrum) led to its uplisting to critically endangered on the International Union for Conservation of Nature Red List in 2015. However, there is little current information on what factors influence trade trends and what current levels of demand are. We combined data from CITES, seizure records, and previously underused, yet abundant, art and antique auction data to examine the global trade in helmeted hornbill casque products (HHPs). Three decades of auction data revealed that 1027 individual HHPs had been auctioned since 1992; total auction sales were over US$3 million from 1992 to 2021. The number of HHPs auctioned was greatest from 2011 to 2014, just after the global art boom (2009-2011), followed by a decline in volume and price. The auction data also revealed 2 possible markets for HHPs: true antique and speculative, defined by era, price, and trade patterns. Trends in illegal trade matched those of the auction market, but legal trade remained consistently low. Combining data sources from legal, illegal, and gray markets provided an overview of the dynamics of illegal trade in an endangered species. This approach can be applied to other wildlife markets to provide a more complete understanding of trade and demand at the market level to inform future demand reduction campaigns.


Análisis del comercio ornamental legal, ilegal y gris del cálao con casco, especie en peligro crítico Resumen El monitoreo de la dinámica del comercio de especies silvestres es un paso inicial importante para las acciones de conservación y las campañas de reducción de la demanda destinadas a reducir el comercio ilegal de especies silvestres. Los estudios suelen basarse en una sola fuente de datos para evaluar el comercio de una especie, como las incautaciones o los datos comerciales de la Convención sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES). Cada base de datos proporciona información útil, pero a menudo incompleta. La combinación de información procedente de varias fuentes ayuda a comprender mejor el comercio. Un reciente y rápido aumento de la demanda de cascos (un casquete queratinoso, sólido y de colores brillantes) de cálao con casco (Rhinoplax vigil) hizo que en 2015 se incluyera en la Lista Roja de la Unión Internacional para la Conservación de la Naturaleza como especie en peligro crítico. Sin embargo, existe poca información actual sobre los factores que influyen en las tendencias del comercio y cuáles son los niveles actuales de demanda. Combinamos datos de CITES, registros de incautaciones y datos de subastas de arte y antigüedades previamente poco utilizados, aunque abundantes, para examinar el comercio mundial de productos de casquetes de cálao con casco (CCC). Tres décadas de datos de subastas revelaron que se habían subastado 1,027 CCC individuales desde 1992; las ventas totales en subasta superaron los tres millones de dólares entre 1992 y 2021. El número de CCC subastados fue mayor entre 2011 y 2014, justo después del boom del arte (2009­2011), seguido de un descenso en volumen y precio. Los datos de las subastas también revelaron dos posibles mercados para los CCC: el de las verdaderas antigüedades y el especulativo, definidos por la época, el precio y los patrones de comercio. Las tendencias del comercio ilegal coincidieron con las del mercado de subastas, pero el comercio legal se mantuvo bajo con constancia. Con la combinación de fuentes de datos de mercados legales, ilegales y grises, nuestros datos proporcionaron una visión general de la dinámica del comercio ilegal de una especie amenazada. Este enfoque puede aplicarse a otros mercados de especies silvestres para obtener un conocimiento más completo del comercio y la demanda a nivel de mercado que sirva de base a futuras campañas de reducción de la demanda.


Asunto(s)
Comercio , Conservación de los Recursos Naturales , Especies en Peligro de Extinción , Especies en Peligro de Extinción/legislación & jurisprudencia , Conservación de los Recursos Naturales/legislación & jurisprudencia , Animales , Comercio/legislación & jurisprudencia , Crimen/prevención & control
2.
Conserv Biol ; 38(5): e14337, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39248743

RESUMEN

Reconciling conservation goals with sustainable resource use requires adaptive management strategies. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) regulates global trade for species listed on Appendix II, partly by requiring member countries (parties) to ensure exports do not damage wild populations (called making positive "nondetriment findings" [NDFs]). Unfortunately, when parties find NDFs difficult, they often suspend legal trade, imposing economic costs and driving trade underground. To make it easier for parties to examine the detrimental nature of exports, we devised a spatial approach and applied it to seahorses (Hippocampus spp.) in Tamil Nadu, India, as an example. Our approach involves mapping answers to 5 key questions on species distribution (QA), pressures (QB), management measures (QC), management implementation (QD), and species' population status (QE). We gathered data from fisher interviews and published literature. Seahorse abundance was greatest in southern Palk Bay and the northern Gulf of Mannar, primarily in seagrasses and coral reefs (QA). Fishing pressure was highest in Palk Bay, primarily from bottom trawlers and dragnetters operating in shallow seahorse habitats near the coastline (QB). Management measures including a marine protected area (MPA), bottom trawl exclusion zone, and closed season were theoretically in place (QC), but their implementation was poor (QD). Fishers reported seahorse catches in 85% of the area covered by the MPA and the exclusion zone; bottom trawlers were responsible for most violations. Seahorses were also captured in Sri Lankan waters, where bottom trawling is banned. Fisher reports indicated declining seahorse catches and reduced body sizes (QE), highlighting unsustainable exploitation. Our results highlight the need for better implementation of existing management measures before a positive NDF can be made and suggest mitigation beyond bans. Such pragmatic spatial analyses can help regulate exports at sustainable levels, supporting CITES implementation for its vast range of species.


Un enfoque práctico para cumplir las obligaciones nacionales para el mercado sustentable bajo CITES Resumen Conciliar los objetivos de conservación con el uso sostenible de los recursos exige estrategias de gestión adaptativa. La Convención sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES) regula el comercio mundial de las especies incluidas en el Apéndice II, en parte exigiendo a los países miembros (partes) que garanticen que las exportaciones no perjudiquen a las poblaciones silvestres (lo que se conoce como dictámenes de extracción no perjudicial [DENP] positivos). Desgraciadamente, cuando las partes encuentran dificultades para formular DENP, a menudo suspenden el comercio legal, lo que impone costos económicos y lleva al comercio a la clandestinidad. Para facilitar a las partes el examen del carácter perjudicial de las exportaciones, ideamos un enfoque espacial y lo aplicamos a los caballitos de mar (Hippocampus spp.) en Tamil Nadu, India, como un ejemplo. Nuestro planteamiento consiste en responder cinco preguntas clave sobre la distribución de las especies (PA), las presiones (PB), las medidas de gestión (PC), la aplicación de la gestión (PD) y el estado de la población de las especies (PE). Se recopilaron datos de entrevistas con pescadores y de la bibliografía publicada. La abundancia de caballitos de mar era mayor en el sur de la bahía Palk y el norte del Golfo de Mannar, principalmente en las praderas marinas y los arrecifes de coral (QA). La presión pesquera era mayor en la bahía Palk, principalmente por parte de redes de arrastre de fondo y redes de arrastre que operaban en hábitats poco profundos de caballitos de mar cerca de la costa (QB). En teoría existían medidas de gestión, como un área marina protegida (AMP), una zona de exclusión para las redes de arrastre de fondo y una temporada de veda (QC), pero su aplicación era deficiente (QD). Los pescadores reportaron capturas de caballitos de mar en el 85% del área cubierta por el AMP y la zona de exclusión; las redes de arrastre de fondo fueron responsables de la mayoría de las infracciones. También se capturaron hipocampos en aguas de Sri Lanka, donde está prohibida la pesca de arrastre de fondo. Los informes de los pescadores indicaron una disminución de las capturas de caballitos de mar y una reducción del tamaño corporal (QE), lo que expone una explotación insostenible. Nuestros resultados resaltan la necesidad de aplicar mejor las medidas de gestión existentes antes de poder hacer un DENP positivo y sugieren medidas de mitigación más allá de las prohibiciones. Estos análisis espaciales pragmáticos pueden ayudar a regular las exportaciones a niveles sostenibles, apoyando la aplicación para la amplia gama de especies de la CITES.


Asunto(s)
Comercio , Conservación de los Recursos Naturales , Especies en Peligro de Extinción , Conservación de los Recursos Naturales/métodos , Conservación de los Recursos Naturales/legislación & jurisprudencia , Animales , Especies en Peligro de Extinción/legislación & jurisprudencia , India , Smegmamorpha/fisiología , Explotaciones Pesqueras/economía , Explotaciones Pesqueras/legislación & jurisprudencia
3.
Conserv Biol ; 38(5): e14355, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39248765

RESUMEN

Reptiles and amphibians are popular in the exotic pet trade, where Australian species are valued for their rarity and uniqueness. Despite a near-complete ban on the export of Australian wildlife, smuggling and subsequent international trade frequently occur in an unregulated and unmonitored manner. In 2022, Australia listed over 100 squamates in Appendix III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) to better monitor this trade. We investigated current trade and assessed the value of this Australian CITES listing using web-scraping methods to monitor the online pet trade in Australian reptiles and amphibians, with additional data from published papers, trade databases, and seizure records. Despite the export ban, we identified 170 endemic herpetofauna (reptile and amphibian) species in international trade, 33 of which were not recorded previously in the international market, including 6 newly recorded genera. Ninety-two traded species were included in CITES appendices (59 added in 2022), but at least 78 other traded species remained unregulated. Among these, 5 of the 10 traded threatened species were unlisted, and we recommend they be considered for inclusion in CITES Appendix III. We also recommend the listing of all Diplodactylidae genera in Appendix III. Despite this family representing the greatest number of Australian species in trade, only one genus (of 7 traded) was included in the recent CITES amendments. Overall, a large number of Australian reptile and amphibian species are traded internationally and, although we acknowledge the value of Australia's recent CITES listing, we recommend the consideration of other taxa for similar inclusion in CITES.


Escala del mercado internacional no regulado de reptiles y anfibios australianos Resumen Los reptiles y anfibios son populares en el comercio de mascotas exóticas, en el que las especies australianas son valoradas por su rareza y singularidad. A pesar de la prohibición casi total de la exportación de fauna silvestre australiana, el contrabando y el comercio internacional posterior se producen con frecuencia de forma no regulada y no supervisada. En 2022, Australia incluyó más de 100 escamosos en el apéndice III de la Convención sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES) para controlar mejor este comercio. Investigamos el comercio actual y evaluamos el valor de esta inclusión en CITES con métodos de raspado web para monitorear el comercio virtual de reptiles y anfibios australianos como mascotas, con datos adicionales de artículos publicados, bases de datos comerciales y registros de incautaciones. A pesar de la prohibición de las exportaciones, identificamos 170 especies endémicas de herpetofauna (reptiles y anfibios) en el comercio internacional, 33 de las cuales no se habían registrado previamente en el mercado internacional, incluidos 6 géneros registrados recientemente. Noventa y dos especies comercializadas se incluyeron en los apéndices de CITES (59 añadidas en 2022), pero al menos otras 78 especies comercializadas permanecieron sin regular. Entre ellas, cinco de las diez especies amenazadas comercializadas no estaban incluidas y recomendamos que se considere su inclusión en el apéndice III de CITES. También recomendamos la inclusión de todos los géneros de Diplodactylidae en el apéndice III. A pesar de que esta familia representa el mayor número de especies australianas en el comercio, sólo un género (de 7 comercializados) fue incluido en las recientes enmiendas de CITES. En general, un gran número de especies de reptiles y anfibios australianos son objeto de comercio internacional y, aunque reconocemos el valor de la reciente inclusión de Australia en CITES, recomendamos que se consideren otros taxones para su similar inclusión.


Asunto(s)
Anfibios , Comercio , Conservación de los Recursos Naturales , Especies en Peligro de Extinción , Reptiles , Animales , Reptiles/fisiología , Anfibios/fisiología , Australia , Conservación de los Recursos Naturales/legislación & jurisprudencia , Especies en Peligro de Extinción/legislación & jurisprudencia , Internacionalidad , Mascotas
4.
Conserv Biol ; 38(5): e14356, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39248767

RESUMEN

The illegal trade in totoaba (Totoaba macdonaldi) is causing adverse social, ecological, and economic impacts. This illegal activity is accelerating the overexploitation of totoaba and pushing the critically endangered vaquita (Phocoena sinus) closer to extinction. Despite extensive efforts to recover vaquita populations, scant attention has been given to the totoaba trade as an independent issue. As a result, data on the totoaba trade are limited, which hampers robust analyses and development of effective interventions to reduce illegal harvesting. We used a previously developed framework specifically designed to examine dynamics of illegal markets and guide measures to mitigate illegal use of totoaba. This framework separates markets into 3 analytical levels: characterization of participating actors (e.g., fishers, intermediaries); examination of how actors interact within the market (e.g., organization of supply chains); and assessment of the overall market dynamics that result from these interactions (e.g., factors determining price and quantity). We reviewed existing literature (108 initial articles) and interviewed key market actors, academics, and nongovernmental organization experts (14) to obtain data for this framework. Our findings offer an overview of the totoaba illegal market operation, highlighting intervention points (e.g., customs agents) and areas where additional information is required to decrease information gaps (e.g., US local market). We describe the structure and complexity of this market, emphasizing the influential role of organized crime in shaping its dynamics (e.g., controlling prices paid to fishers and stockpiling). By providing a systematic and in-depth understanding of the market operation, we aimed to establish a benchmark for effective interventions and future research aimed at reducing uncertainties. Our results provide a crucial step toward addressing this critical issue and can help facilitate development of effective strategies to combat the illegal totoaba trade and promote biodiversity conservation more broadly.


Evaluación de las intervenciones potenciales para reducir el mercado ilegal de la totoaba Resumen El mercado ilegal de totoaba (Totoaba macdonaldi) causa impactos sociales, ecológicos y económicos adversos. Esta actividad ilegal acelera la sobreexplotación de la totoaba y acerca a la extinción a la vaquita marina (Phocoena sinus), especie en peligro crítico de extinción. A pesar de los grandes esfuerzos por recuperar las poblaciones de vaquita, el comercio de totoaba recibe poca atención como problema independiente. Como resultado, los datos sobre este comercio son limitados, lo que dificulta el análisis sólido y el desarrollo de intervenciones eficaces para reducir la captura ilegal. Utilizamos un marco desarrollado previamente y diseñado específicamente para examinar la dinámica de los mercados ilegales y orientar las medidas para mitigar el uso ilegal de la totoaba. Este marco separa los mercados en tres niveles analíticos: caracterización de los actores participantes (por ejemplo, pescadores, intermediarios); análisis de cómo interactúan los actores dentro del mercado (por ejemplo, organización de las cadenas de suministro); y evaluación de la dinámica general del mercado que resulta de estas interacciones (por ejemplo, factores que determinan el precio y la cantidad). Revisamos la bibliografía existente (108 artículos iniciales) y entrevistamos a actores clave del mercado, académicos y expertos de organizaciones no gubernamentales (14) para obtener datos para este marco. Nuestras conclusiones ofrecen una visión general del funcionamiento del mercado ilegal de totoaba y destacan los puntos de intervención (por ejemplo, los agentes aduanales) y las áreas en las que se requiere información adicional para reducir los vacíos informativos (por ejemplo, el mercado local estadunidense). Describimos la estructura y complejidad de este mercado, destacando el influyente papel de la delincuencia organizada en la configuración de su dinámica (por ejemplo, controlando los precios pagados a los pescadores y el almacenamiento). Al proporcionar una comprensión sistemática y en profundidad del funcionamiento del mercado, pretendemos establecer un punto de referencia para intervenciones eficaces y futuras investigaciones encaminadas a reducir las incertidumbres. Nuestros resultados suponen un paso crucial para abordar esta cuestión crítica y pueden ayudar a facilitar el desarrollo de estrategias eficaces para combatir el comercio ilegal de totoaba y promover la conservación de la biodiversidad de forma más amplia.


Asunto(s)
Comercio , Conservación de los Recursos Naturales , Conservación de los Recursos Naturales/legislación & jurisprudencia , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/métodos , Comercio/legislación & jurisprudencia , Animales , Especies en Peligro de Extinción/legislación & jurisprudencia , Crimen/prevención & control , Explotaciones Pesqueras/legislación & jurisprudencia , Explotaciones Pesqueras/economía
6.
PLoS One ; 19(5): e0299783, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38748670

RESUMEN

Unsustainable trade in big cats affects all species in the genus, Panthera, and is one of the foremost threats to their conservation. To provide further insight into the impact of policy interventions intended to address this issue, we examine the case study of the Republic of Korea (South Korea), which in the early 1990s was one of the world's largest importers of tiger (Panthera tigris) bone and a major manufacturer of tiger-derived medicinal products. In 1993, South Korea became a Party to the Convention on International Trade in Endangered Species (CITES) and introduced a ban on commercial trade in CITES Appendix I-listed big cats a year later. We used an expert-based questionnaire survey and an exploration of the CITES trade database to investigate what has since happened to big cat trade in South Korea. Expert opinion suggested that big cat trade has likely substantially reduced since the early 1990s, as a result of the trade ban and broad socioeconomic changes. However, illegal trade has not been eradicated entirely and we were able to confirm that products reportedly derived from big cats were still publicly available for sale on a range of Korean online marketplaces, sometimes openly. The items most commonly reported by respondents from post-1994 trade and supported by expert-led evidence were tiger and leopard (Panthera pardus) skins and tiger bone wine. Although South Korea may provide a useful case study of a historically significant consumer country for tiger which has made strong progress in addressing unsustainable levels of big cat trade within a short period of time, there remains a need to address recalcitrant small-scale, illegal trade. We also recommend further investigation regarding reports of South Korean nationals being involved in illegal trade in tiger-derived products in Southeast Asia.


Asunto(s)
Comercio , Conservación de los Recursos Naturales , Especies en Peligro de Extinción , República de Corea , Animales , Comercio/tendencias , Conservación de los Recursos Naturales/legislación & jurisprudencia , Conservación de los Recursos Naturales/tendencias , Especies en Peligro de Extinción/legislación & jurisprudencia , Especies en Peligro de Extinción/tendencias , Especies en Peligro de Extinción/estadística & datos numéricos , Tigres , Panthera , Encuestas y Cuestionarios , Gatos
7.
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
10.
Proc Natl Acad Sci U S A ; 119(4)2022 01 25.
Artículo en Inglés | MEDLINE | ID: mdl-35042806

RESUMEN

Globally, 15,521 animal species are listed as threatened by the International Union for the Conservation of Nature, and of these less than 3% have genomic resources that can inform conservation management. To combat this, global genome initiatives are developing genomic resources, yet production of a reference genome alone does not conserve a species. The reference genome allows us to develop a suite of tools to understand both genome-wide and functional diversity within and between species. Conservation practitioners can use these tools to inform their decision-making. But, at present there is an implementation gap between the release of genome information and the use of genomic data in applied conservation by conservation practitioners. In May 2020, we launched the Threatened Species Initiative and brought a consortium of genome biologists, population biologists, bioinformaticians, population geneticists, and ecologists together with conservation agencies across Australia, including government, zoos, and nongovernment organizations. Our objective is to create a foundation of genomic data to advance our understanding of key Australian threatened species, and ultimately empower conservation practitioners to access and apply genomic data to their decision-making processes through a web-based portal. Currently, we are developing genomic resources for 61 threatened species from a range of taxa, across Australia, with more than 130 collaborators from government, academia, and conservation organizations. Developed in direct consultation with government threatened-species managers and other conservation practitioners, herein we present our framework for meeting their needs and our systematic approach to integrating genomics into threatened species recovery.


Asunto(s)
Conservación de los Recursos Naturales/métodos , Especies en Peligro de Extinción/legislación & jurisprudencia , Genómica/normas , Animales , Recolección de Datos , Especies en Peligro de Extinción/tendencias , Genoma , Genómica/legislación & jurisprudencia , Genómica/métodos , Gobierno
11.
Proc Natl Acad Sci U S A ; 119(4)2022 01 25.
Artículo en Inglés | MEDLINE | ID: mdl-35042809

RESUMEN

The Earth BioGenome Project (EBP) is an audacious endeavor to obtain whole-genome sequences of representatives from all eukaryotic species on Earth. In addition to the project's technical and organizational challenges, it also faces complicated ethical, legal, and social issues. This paper, from members of the EBP's Ethical, Legal, and Social Issues (ELSI) Committee, catalogs these ELSI concerns arising from EBP. These include legal issues, such as sample collection and permitting; the applicability of international treaties, such as the Convention on Biological Diversity and the Nagoya Protocol; intellectual property; sample accessioning; and biosecurity and ethical issues, such as sampling from the territories of Indigenous peoples and local communities, the protection of endangered species, and cross-border collections, among several others. We also comment on the intersection of digital sequence information and data rights. More broadly, this list of ethical, legal, and social issues for large-scale genomic sequencing projects may be useful in the consideration of ethical frameworks for future projects. While we do not-and cannot-provide simple, overarching solutions for all the issues raised here, we conclude our perspective by beginning to chart a path forward for EBP's work.


Asunto(s)
Especies en Peligro de Extinción/legislación & jurisprudencia , Ética en Investigación , Genómica , Animales , Bioaseguramiento/ética , Bioaseguramiento/legislación & jurisprudencia , Genómica/ética , Genómica/legislación & jurisprudencia , Humanos
12.
Braz. j. biol ; 82: 1-7, 2022. ilus, tab
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1468428

RESUMEN

With occurrence mainly in the southwest Goiás, Butia purpurascens has fruits and leaves widely extracted by the regional population. Coexists with exotic grasses, frequent burnings and cattle's grazing and trampling. Young individuals are rarely seen. We aim to provide information about propagules, seedling formation and the monitoring of saplings of B. purpurascens until adults in reproductive phase. Fruits were selected, measured and benefited after harvest. Of 6,000 fruits collected 3,112 were discarded for being perforated by Conotrachelus weevils. The experiment divided 2,600 fruits into 13 treatments, distributed in ripe and immature fruits, with and without pulp. In addition, we adopt mechanical and chemical break dormancy mechanisms, different storage periods and seeding depths. After sixteen months of monitoring, the formation of eleven seedlings was obtained without distinction of any treatment. Seedlings and saplings developed slowly, taking two years to emit the first metaphyll. Over time, ten individuals died, most from fungal attack. After ten years, the only surviving palm generated two inflorescences, which produced fruit. The inefficient seedling production and the slow development of saplings, combined with the impact of the extractivism and the high rate of predation of the pyrenes, suggest the low recruitment rate of the species observed, in natural conditions. This type of data is one of the important tools for creating guidelines for the species conservation. Therefore, we suggest considering the reclassification of B. purpurascens as a Critically Endangered species in the Official List of Threatened Brazilian Species of Extinction.


Com ocorrência concentrada no sudoeste goiano, Butia purpurascens tem frutos e folhas amplamente extraídos pela população regional. Coexiste com gramíneas exóticas, queimadas frequentes, além do pastejo e pisoteamento por gado. Os indivíduos jovens raramente são vistos. Este trabalho teve como objetivo fornecer informações sobre propágulos, formação de plântulas e monitoramento de indivíduos jovens de B. purpurascens até adultos em fase reprodutiva. Os frutos foram selecionados, medidos e beneficiados após a colheita. Dos 6.000 frutos coletados, 3.112 foram descartados por estarem perfurados por gorgulhos do gênero Conotrachelus. O experimento dividiu 2.600 frutos em 13 tratamentos, distribuídos em frutos maduros e imaturos, com polpa e despolpados. Além da adoção de mecanismos mecânicos e químicos de quebra de dormência, períodos de armazenamento e profundidades de plantio diferentes. Após 16 meses de monitoramento, a formação de 11 plântulas foi obtida sem distinção de qualquer tratamento. Plântulas e indivíduos jovens se desenvolveram lentamente, levando dois anos para emitir o primeiro metáfilo. Ao longo do tempo, dez indivíduos morreram, a maioria, por ataque fúngico. Após dez anos, a única planta sobrevivente gerou duas inflorescências, as quais produziram frutos. A capacidade de produção de plântulas ineficiente e o lento desenvolvimento das mudas, combinados com o impacto do extrativismo e a alta taxa de predação dos pirênios, sugerem a baixa taxa de recrutamento da espécie observada, em condições naturais. Esse tipo de dado é uma das ferramentas importantes para a criação de diretrizes para a conservação de espécies. Portanto, sugerimos considerar a reclassificação de B. purpurascens como espécie Criticamente Ameaçada na Lista Nacional Oficial de Espécies da Flora Brasileira Ameaçadas de Extinção.


Asunto(s)
Arecaceae/crecimiento & desarrollo , Especies en Peligro de Extinción/legislación & jurisprudencia
13.
Zool Res ; 42(5): 666-670, 2021 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-34490759

RESUMEN

In a precautionary response to the current coronavirus (COVID-19) pandemic, China's Ministries permanently banned eating and trading in terrestrial wild (non-livestock) animals on 24 February 2020, and extensively updated the list of Fauna under Special State Protection (LFSSP) in 2020 and 2021, in which pangolins (Manidae spp.) were upgraded to the highest protection level. Examining 509 pangolin prosecution records from China Judgements online prior to these changes (01/01/14-31/12/19), we identified that Guangdong, Guangxi and Yunnan Provinces were hotspots for trade in whole pangolins and their scales. Interrupting trade in these three principal southern provinces would substantially fragment the pangolin trade network and reduce supply of imports from other south-east Asian countries. In the context of the revised legislation and strategies intended to prevent wildlife trade, we conclude that targeting interventions at key trade nodes could significantly reduce illegal trade in pangolins, and that this approach could also be effective with other taxa.


Asunto(s)
COVID-19/epidemiología , Crimen , Especies en Peligro de Extinción/legislación & jurisprudencia , Pangolines , SARS-CoV-2 , Animales , China , Humanos , Estudios Retrospectivos
16.
Genes (Basel) ; 12(7)2021 06 29.
Artículo en Inglés | MEDLINE | ID: mdl-34210039

RESUMEN

Mislabelling of fish and fish products has attracted much attention over the last decades, following public awareness of the practice of substituting high-value with low-value fish in markets, restaurants, and processed seafood. In some cases, mislabelling includes illegal, unreported, and unregulated (IUU) fishing, contributing to overexploit substitute species that are undetectable when sold under wrong names. This is the first study of DNA barcoding to assess the level of mislabelling in fish marketed in Ghana, focusing on endangered shark species. Genetic identification was obtained from 650 base pair sequences within the cytochrome c oxidase I (COI) gene. All except one of 17 shark fillets analysed were wrongly labelled as compared with none of 28 samples of small commercial pelagic fish and 14 commercial shark samples purchased in Europe. Several substitute shark species in Ghana are endangered (Carcharhinussignatus and Isurusoxyrinchus) and critically endangered (Squatina aculeata). Shark products commercialized in Europe (n = 14) did not reveal mislabelling, thus specific shark mislabelling cannot be generalized. Although based on a limited number of samples and fish markets, the results that reveal trade of endangered sharks in Ghana markets encourage Ghanaian authorities to improve controls to enforce conservation measures.


Asunto(s)
Especies en Peligro de Extinción/estadística & datos numéricos , Productos Pesqueros/normas , Etiquetado de Alimentos/normas , Tiburones/genética , Animales , Código de Barras del ADN Taxonómico/normas , Especies en Peligro de Extinción/legislación & jurisprudencia , Explotaciones Pesqueras/normas , Ghana , Tiburones/fisiología
17.
PLoS One ; 16(7): e0253895, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34197512

RESUMEN

Assessing species status and making classification decisions under the Endangered Species Act is a critical step towards effective species conservation. However, classification decisions are liable to two errors: i) failing to classify a species as threatened or endangered that should be classified (underprotection), or ii) classifying a species as threatened or endangered when it is not warranted (overprotection). Recent surveys indicate threatened spectacled eider populations are increasing in western Alaska, prompting the U.S. Fish and Wildlife Service to reconsider the federal listing status. There are multiple criteria set for assessing spectacled eider status, and here we focus on the abundance and decision analysis criteria. We estimated population metrics using state-space models for Alaskan breeding populations of spectacled eiders. We projected abundance over 50 years using posterior estimates of abundance and process variation to estimate the probability of quasi-extinction. The decision analysis maps the risk of quasi-extinction to the loss associated with making a misclassification error (i.e., underprotection) through a loss function. Our results indicate that the Yukon Kuskokwim Delta breeding population in western Alaska has met the recovery criteria but the Arctic Coastal Plain population in northern Alaska has not. The methods employed here provide an example of accounting for uncertainty and incorporating value judgements in such a way that the decision-makers may understand the risk of committing a misclassification error. Incorporating the abundance threshold and decision analysis in the reclassification criteria greatly increases the transparency and defensibility of the classification decision, a critical aspect for making effective decisions about species management and conservation.


Asunto(s)
Toma de Decisiones en la Organización , Técnicas de Apoyo para la Decisión , Patos , Especies en Peligro de Extinción/legislación & jurisprudencia , Alaska , Animales , Teorema de Bayes , Seguimiento de Parámetros Ecológicos/estadística & datos numéricos , Especies en Peligro de Extinción/estadística & datos numéricos , Estados Unidos , El Yukón
18.
PLoS One ; 16(4): e0235451, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33848287

RESUMEN

The exploitation of threatened exotic species via social media challenges efforts to regulate the exotic pet trade and consequently threatens species conservation. To investigate how such content is perceived by the global community, mixed model sentiment analysis techniques were employed to explore variations in attitudes expressed through text and emoji usage in public comments associated with 346 popular YouTube® videos starring exotic wild cats or primates in 'free handling' situations. Negative interactions between wild cats and primates with other species were found to be associated with both text and emoji median sentiment reduction, however were still accompanied by a median emoji sentiment above zero. Additionally, although a negative trend in median text sentiment was observed in 2015 for primates, an otherwise consistent positive median text and emoji sentiment score through time across all IUCN Red List categories was revealed in response to both exotic wild cat and primate videos, further implying the societal normalisation and acceptance of exotic pets. These findings highlight the urgency for effective YouTube® policy changes and content management to promote public education and conservation awareness, whilst extinguishing false legitimisation and demand for the exotic pet trade.


Asunto(s)
Especies en Peligro de Extinción/legislación & jurisprudencia , Medios de Comunicación Sociales/legislación & jurisprudencia , Grabación en Video/legislación & jurisprudencia , Grabación de Cinta de Video/legislación & jurisprudencia , Animales , Animales Exóticos , Gatos , Primates , Opinión Pública
19.
Int J Legal Med ; 135(4): 1413-1416, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33825024

RESUMEN

Poaching of South Asian river dolphins is considered one of the main reasons for the rapid decline of their natural populations. To curb the escalated rate of poaching, high numbers of oil and meat seizures are recovered with subsequent convictions by the law enforcement agencies. In this connection, we report a case where suspected animal oil was confiscated by the forest official of West Bengal. We extracted DNA and successfully amplified partial fragments of Cytb and 16S rRNA mitochondrial genes. The generated sequences identified that the seized oil belonged to the Ganges river dolphin (Platanista gangetica) which is protected as Schedule I under the Wildlife (Protection) Act, 1972 of India and listed as "Endangered" under IUCN and APPENDIX I in CITES. In routine case work analysis, oil samples are not preferred for forensic DNA investigation due to low DNA yield and presence of inhibitors or contaminants leading to high failure rate. However, the present study generates hope for identifying species from seized animal oil and supports law enforcement in successful prosecution of the case.


Asunto(s)
Citocromos b/genética , ADN/aislamiento & purificación , Delfines/genética , Genes Mitocondriales , Aceites/análisis , ARN Ribosómico 16S/genética , Animales , Crimen/prevención & control , Especies en Peligro de Extinción/legislación & jurisprudencia , India , Especificidad de la Especie
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