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  • 1
    In: Mammal Review, Wiley, Vol. 47, No. 4 ( 2017-10), p. 291-305
    Abstract: The Neotropical otter Lontra longicaudis is a widespread semiaquatic carnivore living in a wide variety of environments in both fresh‐water and salt‐water ecosystems. We summarise the current knowledge on distribution, ecology, behaviour, evolution and conservation status of the species, and highlight the main threats that have been affecting it as well as priority actions for securing its survival. The current geographical range of Lontra longicaudis is discussed, as well as several efforts that have been made to update knowledge of the range. Throughout its known distribution area, the Neotropical otter has high genetic diversity, and recent molecular research suggests that variations in genetic diversity are related to geography. Taxonomic issues regarding the existence of subspecies persist, mainly due to limited sampling in key portions of the species’ range. Although the Neotropical otter is widely distributed in Latin America and has flexible behaviour, it is subjected to a variety of threats, which lead this otter to be officially considered Threatened in several countries within its geographical range. The species still faces an uncertain future due to the impact of human activities, thus justifying its classification as Near Threatened in the International Union for Conservation of Nature's Red List. The real level of human‐otter conflicts and the impact of modified environments on Neotropical otter populations are still unclear, and must be a priority focus of future studies. There is an urgent need to increase our knowledge on aspects of the Neotropical otter's biology, such as reproduction, generation time, behaviour, physiology, distribution limits, sanitary aspects, evolution and taxonomy. Understanding these topics is vital to ensure the long‐term survival of the species, both at the local and at the regional scale, as well as to provide the basis for environmental education actions involving local riverside human communities .
    Type of Medium: Online Resource
    ISSN: 0305-1838 , 1365-2907
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2020637-9
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2017
    In:  Hydrobiologia Vol. 792, No. 1 ( 2017-5), p. 1-15
    In: Hydrobiologia, Springer Science and Business Media LLC, Vol. 792, No. 1 ( 2017-5), p. 1-15
    Type of Medium: Online Resource
    ISSN: 0018-8158 , 1573-5117
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2017
    detail.hit.zdb_id: 1478162-1
    detail.hit.zdb_id: 214428-1
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Frontiers Media SA ; 2023
    In:  Frontiers in Forests and Global Change Vol. 6 ( 2023-2-16)
    In: Frontiers in Forests and Global Change, Frontiers Media SA, Vol. 6 ( 2023-2-16)
    Abstract: The illegal wildlife trade is one of the main factors of biodiversity loss worldwide. Brazil, the largest country in South America, is a hub of wildlife trafficking, but availability of information on the issue is constrained to specific regions and to Portuguese speakers. Knowledge gaps hinder the establishment of targeted countermeasures in the fight against the illegal wildlife trade. Thousands of animals are seized from IWT and sent to wildlife centers each year. Here, we reviewed the literature on seized songbirds for the Brazilian Atlantic Forest (BAF), a global hotspot of biodiversity. Using a systematic review approach, we compiled a database with all available papers containing seizure records for the Brazilian Atlantic Forest. We focused on the 10 most seized species in each study to construct a comprehensive view of the main victims of the illegal trade. We reported 23 studies in 20 locations throughout the BAF. In 19 years, 139,000 passerines were recorded, distributed in 47 species – and two genera – across 10 families. Thraupidae was the most important family, with 27 species in the list and comprising 70% of individuals recorded. We highlighted the preference for granivorous birds and birds deemed good singers. There were few threatened species in the top list, but many of the ones included have population trends of decline, indicating a conservation issue that can direly affect even currently common species if the high demand continues. We appointed knowledge gaps within the Brazilian scenario of wildlife trafficking and provided practical recommendations on the issue considering the global scenario of IWT.
    Type of Medium: Online Resource
    ISSN: 2624-893X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2023
    detail.hit.zdb_id: 2968523-0
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  • 4
    Online Resource
    Online Resource
    SAGE Publications ; 2014
    In:  Tropical Conservation Science Vol. 7, No. 2 ( 2014-06), p. 214-229
    In: Tropical Conservation Science, SAGE Publications, Vol. 7, No. 2 ( 2014-06), p. 214-229
    Abstract: Understanding a species' occurrence requirements is essential for its conservation, and species distribution models (SDMs) are a powerful tool for this purpose. Here we estimated a SDM based on actual distribution information, in relation to climatic, hydrological, human population, and vegetation data sets, to understand the ecological requirements and geographic distribution of the Neotropical otter Lontra longicaudis, a species whose habitat requirements and conservation needs are mostly unknown. Using MaxEnt, we defined its potential distribution and most suitable areas to indicate priority areas for research and to analyze the efficiency of Protected Areas (PAs). Our findings suggest that the range of Neotropical otters could extend beyond their present estimated distribution, adding new areas in northeastern Brazil, Andean region, west Ecuador, Venezuela, Peru, Mexico, and Argentina, with higher suitability in rain forests (especially Atlantic and Amazon Forests). We also found that PAs are the most suitable areas for otter distribution. Although better than non-protected areas, PAs are close to the median of the suitability values, indicating that they still can be improved to conserve otters. Annual temperature and human population density explained most data variance in our model. We suggest the change of the actual status of Neotropical otter to Least Concern or Near Threatened categories. We recommend verifying the possible sympatry with other otters, and demonstrate that rudimentary and/or occasional recent data of occurrence can also be used in SDMs and contribute to species conservation.
    Type of Medium: Online Resource
    ISSN: 1940-0829 , 1940-0829
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2496920-5
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  • 5
    Online Resource
    Online Resource
    Cambridge University Press (CUP) ; 2016
    In:  Journal of Tropical Ecology Vol. 32, No. 2 ( 2016-03), p. 170-174
    In: Journal of Tropical Ecology, Cambridge University Press (CUP), Vol. 32, No. 2 ( 2016-03), p. 170-174
    Abstract: Circadian use of time is an important, but often neglected, part of an animal's niche. We compared the activity patterns of the Neotropical otter Lontra longicaudis in two different areas in Brazil using camera traps placed at the entrance of holts. We obtained 58 independent photos in the Atlantic Forest (273 camera trap-days) and 46 photos in Pantanal (300 camera trap-days). We observed different kernel density probabilities on these two areas (45.6% and 14.1% overlap between the 95% and 50% density isopleths respectively). We observed the plasticity in Neotropical otter activity behaviour with different activity patterns in the two areas. In the Pantanal, the Neotropical otter selected daylight (Ivlev = 0.23) and avoided night (Ivlev = −0.44), while in the Atlantic Forest it selected dawn (Ivlev = 0.24) and night (Ivlev = 0.14), avoiding daylight (Ivlev = −0.33). We believe that this pattern can be due to human activity or shifts in prey activity.
    Type of Medium: Online Resource
    ISSN: 0266-4674 , 1469-7831
    RVK:
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2016
    detail.hit.zdb_id: 1466679-0
    SSG: 12
    SSG: 23
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  • 6
    In: Conservation Biology, Wiley, Vol. 35, No. 6 ( 2021-12), p. 1833-1849
    Abstract: Reconociendo que era imperativo evaluar la recuperación de especies y el impacto de la conservación, la Unión Internacional para la Conservación de la Naturaleza (UICN) convocó en 2012 al desarrollo de una “Lista Verde de Especies” (ahora el Estatus Verde de las Especies de la UICN). Un marco de referencia preliminar de una Lista Verde de Especies para evaluar el progreso de las especies hacia la recuperación, publicado en 2018, proponía 2 componentes separados pero interconectados: un método estandarizado (i.e., medición en relación con puntos de referencia de la viabilidad de especies, funcionalidad y distribución antes del impacto) para determinar el estatus de recuperación actual ( puntuación de recuperación de la especie ) y la aplicación de ese método para estimar impactos en el pasado y potenciales de conservación basados en 4 medidas ( legado de conservación, dependencia de conservación, ganancia de conservación y potencial de recuperación ). Probamos el marco de referencia con 181 especies representantes de diversos taxa, historias de vida, biomas, y categorías (riesgo de extinción) en la Lista Roja de la IUCN. Con base en la distribución observada de la puntuación de recuperación de las especies, proponemos las siguientes categorías de recuperación de la especie : totalmente recuperada, ligeramente mermada, moderadamente mermada, mayormente mermada, gravemente mermada, extinta en estado silvestre, e inderterminada. Cincuenta y nueve por ciento de las especies se consideraron mayormente o gravemente mermada. Aunque hubo una relación negativa entre el riesgo de extinción y la puntuación de recuperación de la especie, la variación fue considerable. Algunas especies en las categorías de riesgo bajas fueron evaluadas como más lejos de recuperarse que aquellas con alto riesgo. Esto enfatiza que la recuperación de especies es diferente conceptualmente al riesgo de extinción y refuerza la utilidad del Estado Verde de las Especies de la UICN para comprender integralmente el estatus de conservación de especies. Aunque el riesgo de extinción no predijo el legado de conservación, la dependencia de conservación o la ganancia de conservación, se correlacionó positivamente con la potencial de recuperación. Solo 1.7% de las especies probadas fue categorizado como cero en los 4 indicadores de impacto de la conservación , lo que indica que la conservación ha jugado, o jugará, un papel en la mejoría o mantenimiento del estatus de la especie la gran mayoría de ellas. Con base en nuestros resultados, diseñamos una versión actualizada del marco de referencia para la evaluación que introduce la opción de utilizar una línea de base dinámica para evaluar los impactos futuros de la conservación en el corto plazo y redefine corto plazo como 10 años.
    Type of Medium: Online Resource
    ISSN: 0888-8892 , 1523-1739
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020041-9
    SSG: 12
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