Sistema de Eventos Acadêmicos da UFMT, XI Mostra da Pós-Graduação

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MAPPING THE RISK INVASION AREA OF THE MAIN NON-NATIVE FISHES INTRODUCED IN THE UPPER PARAGUAY RIVER BASIN
Cristian Camilo Martinez Gonzalez, Jerry Magno Ferreira Penha

Última alteração: 08-10-19

Resumo


Understand proliferation patterns of invasive species and their relation to the ecosystem transformations is of great importance faced to global conservation goals, unfortunately, research efforts are not prout to evaluate the potential risks of introduces species in complex ecosystems. In this dissertation project, we generate species distribution models who were able to predict the regions of the increased risk invasion of the main non-native fishes introduced in the Upper Paraguay River Basin (The Pantanal area and their upstream tributaries). The information of the species was obtained using a recent sampling method developed for estimated the proliferation of non-native fishes in Neotropical reservoirs, known as Rapid Assessment Protocol (RAP) that use Citizen Science data for access to biological information (Surveys with fishers and social networks georeferenced photos of the species) besides literature information and traditional databases. With the records obtained, the invasion area of the introduced fishes was predicted by the 322 hydroclimatic variables for the study area (Near-global environmental information for freshwater ecosystems in 1km resolution). The evaluation of the accuracy in the models  (predictive power) was carried out using the Area Under Curve (AUC) of the Receiver Operating Characteristic (ROC) and True Skills Statistic (TSS), we select the models that showed the better performance for mapping the adequability of each one introduced fish species in the basin. These predictive models work as tools and are a fundamental aspect of the development of effective preventative actions and planning the management of introduced species in the basin.


Palavras-chave


Peacock Bas, Tucunaré, Tilápia, Tambacú, invasive species, alien species.