Zoos and aquaria, often regarded as preservation-cum-entertainment enterprises, are also actors in the effort to curb the biodiversity crisis: raising awareness, supporting conservation, and conducting research. We assessed trends in zoo and aquaria research topics and study organisms over time worldwide. For the zoos and aquaria registered in the Species360's Zoological Information Management System and the World Association of Zoos and Aquariums, we compiled metadata on their research published in the peerreviewed literature indexed in Scopus and carried out a keyword frequency analysis. The production of scientific papers by zoos increased at a much faster rate than the average accrual of scientific papers in the literature. Evolution of research themes ran parallel to that of biological sciences (e.g., development of molecular genetics or increased awareness about conservation). The focus of 48.5% of zoo-led research was on vertebrates, of which mammal research was 33.7%. Whether zoos are effectively contributing to conservation may still be debatable, but our results highlight their institutional efforts to increase knowledge about the species in their care. KEYWORDSbiodiversity conservation, history of zoos, literature analysis, role of zoos, scientific production, Scopus, text mining Tendencias Mundiales en la Producción Investigativa de los Zoológicos y Acuarios Resumen: Los zoológicos y los acuarios, con frecuencia considerados empresas de conservación y entretenimiento, también son actores en el esfuerzo por reducir la crisis de la biodiversidad al crear conciencia, apoyar a la conservación y llevar a cabo investigaciones. Evaluamos las tendencias en los temas de investigación y los organismos de estudios en los zoológicos y los acuarios en todo el mundo a través del tiempo. Compilamos los metadatos de las investigaciones realizadas en los zoológicos y acuarios registrados en el Sistema de Manejo de Información Zoológica de Species360 y en la Asociación Mundial de Zoológicos y Acuarios que han sido publicadas en la literatura revisada por pares indexada en Scopus y realizamos un análisis de frecuencias de palabras clave. La producción de artículos científicos por zoológicos se incrementó a una tasa mucho más rápida que la acumulación promedio de artículos científicos en la literatura. La evolución de los temas de investigación fue paralela a la de las ciencias biológicas (p. ej.: desarrollo de la genética molecular o incremento en la conciencia por la conservación). El enfoque del 48.5% de las investigaciones conducidas por los zoológicos estuvo sobre los vertebrados. De este 48.5%, el 33.7% fueron investigaciones sobre mamíferos. Todavía puede debatirse si los zoológicos están contribuyendo efectivamente a la conservación, pero nuestros resultadosThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
The knowledge of biodiversity within an area is vital if we want to develop adequate conservation strategies. Biosphere Reserves are purposefully established for the sustainable use of their resources, and therefore their biodiversity should be well known. We compared and evaluated information available for Mexican Biosphere Reserves on threatened and non-threatened vertebrate species records from three different sources--the corresponding Biosphere Reserves management plans (MPs), the Global Biodiversity Information Facility index (GBIF), and scientific literature, in order to find potential knowledge gaps. Our results suggest that there were varying gaps in information among sources according to vertebrate group. For each group of vertebrate species, management plans held the largest subsets of information but were not complete, ranging from 89.6% of the combined known species of birds to 70% for amphibians and freshwater fishes. However, both GBIF and literature included data absent from MPs, and GBIF included data not otherwise available, proving it as important as literature or other data sources (e.g. field data) used for crafting such plans. Moreover, we found references to threatened species that were not listed in the MPs, reaching to as many as 50% of the total known species of fish. Species information shared by all three sources ranged from 28% for amphibians to 72.5% for birds. Conservation efforts should therefore take into account that possibly less charismatic taxa such as amphibians, reptiles and freshwater fish lack more information than birds or mammals. The disparity observed in the vertebrate species information constitutes an information gap that could (or should) be solved by scientists and managers alike.
To detect differences in the information available on freshwater fish species found in Mexican biosphere reserves, the number of species considered in three sources of information: management programmes, Global Biodiversity Information Facility (GBIF) and the scientific literature were compared. Additionally, management actions for the reserves were evaluated. More than 55% of freshwater fish species registered for the reserves were found only in one of the three sources of information, while just 12% was shared among all the three. Fifteen threatened species were registered in GBIF and the scientific literature that were not found in management programmes. Although all the management programmes described conservation actions, none of them gave details about how they would be implemented. Lack of communication among the sources studied, unawareness of the existence of threatened species and the absence of detailed management actions hinder the development of adequate conservation strategies.
Summary The present work provides the estimates of morphometric relationships for 22 native freshwater fish species (11 Characidae, five Loricariidae, two Heptapteridae, one Astroblepidae, one Crenuchidae, one Curimatidae and one Erythrinidae) collected in the Alto Madre de Dios River (Cuzco and Madre de Dios, Peru) in June 2012 using a mobile backpack electrofishing unit. These are the first length–weight relationships reported for 24 species, mostly endemic to the Amazonian basin. Knowledge regarding these biometric relationships can be relevant in the management and conservation of the local fishes and fisheries.
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