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1.
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
4.
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
5.
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
6.
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
7.
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
10.
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
11.
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
12.
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
13.
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
15.
Nat Commun ; 11(1): 4738, 2020 09 29.
Artículo en Inglés | MEDLINE | ID: mdl-32994397

RESUMEN

Wildlife trade is a key driver of the biodiversity crisis. Unregulated, or under-regulated wildlife trade can lead to unsustainable exploitation of wild populations. International efforts to regulate wildlife mostly miss 'lower-value' species, such as those imported as pets, resulting in limited knowledge of trade in groups like reptiles. Here we generate a dataset on web-based private commercial trade of reptiles to highlight the scope of the global reptile trade. We find that over 35% of reptile species are traded online. Three quarters of this trade is in species that are not covered by international trade regulation. These species include numerous endangered or range-restricted species, especially hotspots within Asia. Approximately 90% of traded reptile species and half of traded individuals are captured from the wild. Exploitation can occur immediately after scientific description, leaving new endemic species especially vulnerable. Pronounced gaps in regulation imply trade is having unknown impacts on numerous threatened species. Gaps in monitoring demand a reconsideration of international reptile trade regulations. We suggest reversing the status-quo, requiring proof of sustainability before trade is permitted.


Asunto(s)
Animales Salvajes , Comercio/legislación & jurisprudencia , Especies en Peligro de Extinción/legislación & jurisprudencia , Internacionalidad/legislación & jurisprudencia , Reptiles , Animales , Comercio/economía , Especies en Peligro de Extinción/economía , Internet/economía , Internet/legislación & jurisprudencia
16.
PLoS One ; 15(7): e0236790, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32726369

RESUMEN

Overharvesting affects the size and growth of wildlife populations and can impact population trajectories. Overharvesting can also severely alter population structure and may result in changes in spatial organisation, social dynamics and recruitment. Understanding the relationship between overharvesting and population growth is therefore crucial for the recovery of exploited species. The black rhinoceros (Diceros bicornis; black rhino) is a long-lived megaherbivore native to sub-Saharan Africa, listed as Critically Endangered on the IUCN Red List of Threatened Species. Since 2009, the targeted illegal killing of rhino for their horns has escalated dramatically in South Africa. Given their slow life trajectories, spatial structure and social dynamics, black rhino may be susceptible to both direct and indirect impacts of overharvesting. Our study compared black rhino demography before and during extensive poaching to understand the impact of illegal killing. The population exhibited significant changes in age structure after four years of heavy poaching; these changes were primarily explained by a decrease in the proportion of calves over time. Population projections incorporating both direct poaching removals and decreased fecundity/recruitment were most similar to the observed demographic profile in 2018, suggesting that indirect impacts are also contributing to the observed population trajectory. These indirect impacts are likely a result of decreased density, through processes such as reduced mate-finding, population disturbance and/or increased calf predation. This study illustrates the combined effect of direct and indirect impacts on an endangered species, providing a more comprehensive approach by which to evaluate exploited populations.


Asunto(s)
Especies en Peligro de Extinción/legislación & jurisprudencia , Perisodáctilos , Factores de Edad , Animales , Conservación de los Recursos Naturales , Dinámica Poblacional , Factores de Tiempo
18.
Nat Commun ; 10(1): 3467, 2019 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-31371718

RESUMEN

To protect biodiversity, conservation laws should be evaluated and improved using data. We provide a comprehensive assessment of how a key provision of the U.S. Endangered Species Act (ESA) is implemented: consultation to ensure federal actions do not jeopardize the existence of listed species. Data from all 24,893 consultations recorded by the National Marine Fisheries Service (NMFS) from 2000-2017 show federal agencies and NMFS frequently agreed (79%) on how federal actions would affect listed species. In cases of disagreement, agencies most often (71%) underestimated effects relative to the conclusions of species experts at NMFS. Such instances can have deleterious consequences for imperiled species. In 22 consultations covering 14 species, agencies concluded that an action would not harm species while NMFS determined the action would jeopardize species' existence. These results affirm the importance of the role of NMFS in preventing federal actions from jeopardizing listed species. Excluding expert agencies from consultation compromises biodiversity conservation, but we identify approaches that improve consultation efficiency without sacrificing species protections.


Asunto(s)
Comités Consultivos , Animales Salvajes , Conservación de los Recursos Naturales/legislación & jurisprudencia , Especies en Peligro de Extinción/legislación & jurisprudencia , Explotaciones Pesqueras/legislación & jurisprudencia , Animales , Toma de Decisiones
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