6 documents found, page 1 of 1
Food web changes associated with drought and invasive species in a tropical sem...
Bezerra, Luis Artur Valões; Angelini, Ronaldo; Vitule, Jean Ricardo Simões; Coll, Marta; Sanchez-Botero, Jorge IvánFish and invertebrates are introduced in freshwaters around the world for commercial purposes, despite widely known impacts on food webs and biological invasions. As a proxy for artificial environments, we modeled a typical reservoir in a Brazilian semiarid region using an ecosystem approach. We compared the role of native and nonnative invasive species (NIS) in the food web, between dry and wet periods, and un...
Large-scale Degradation of the Tocantins-Araguaia River Basin
Pelicice, Fernando Mayer; Agostinho, Angelo Antonio; Akama, Alberto; Andrade Filho, José Dilermando; Azevedo-Santos, Valter M. [UNESP]Made available in DSpace on 2022-04-28T19:42:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01; The Tocantins-Araguaia Basin is one of the largest river systems in South America, located entirely within Brazilian territory. In the last decades, capital-concentrating activities such as agribusiness, mining, and hydropower promoted extensive changes in land cover, hydrology, and environmental condit...
Análise dos efeitos da legislação vigente sobre espécies exóticas na Amazônia L...
Soares, Lariessa Moura de Araújo; Araujo, Neiva; Vitule, Jean Ricardo Simões; Doria, Carolina Rodrigues da CostaSubmitted by phemiran@stj.jus.br (phemiran@stj.jus.br) on 2021-09-30T14:34:59Z No. of bitstreams: 2 analise_efeitos_legislacao_soares.pdf: 503491 bytes, checksum: e7e2e97d984488faf455d1cee6051673 (MD5) license.txt: 1239 bytes, checksum: c9b4c351324448672315a00808efb725 (MD5); Approved for entry into archive by Stephanie Moira (rsmoira@stj.jus.br) on 2021-09-30T20:10:18Z (GMT) No. of bitstreams: 2 license.txt: 1...
A checklist of aquatic macrophytes of the Guaraguaçu river basin reveals a targ...
Araújo, Eliélton da Silva; Vitule, Jean Ricardo Simões; Padial, Andre AndrianDescribing and understanding distribution of species in natural ecosystems is the first step to establish conservation efforts. In aquatic habitats, macrophytes play a central role in promoting biodiversity and ecosystem functioning. This study aimed to create the first checklist of aquatic macrophyte species occurring in the Guaraguaçu river, the largest river in Paraná State coast, Brazil. Species herborized,...
Distribuiçao, abundância e estrutura populacional de peixes introduzidos no rio...
Vitule, Jean Ricardo SimõesOrientador: José Marcelo Rocha Aranha; Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciencias Biológicas, Programa de Pós-Graduaçao em Zoologia. Defesa: Curitiba, 2008; Inclui bibliografia e anexos; Area de concentraçao: Zoologia; The diets of the Burrowing Owl (Athene cunicularia Molina, 1782) and the Barn Owl (Tyto alba Scopoli, 1769) were analyzed in seven areas in the City of Curitiba and in t...
Efeito do tamanho corporal na dieta de Rivulus haraldsiolii (Aplocheiloidei: Ri...
Abilhoa, Vinícius; Vitule, Jean Ricardo Simões; Bornatowski, Hugo; de Lara, Fagner Breda; Kohler, Glauco Ubiratan; Festti, LucianaFoi investigado o efeito do tamanho corporal no hábito alimentar de exemplares de Rivulus haraldsiolii coletados em um riacho litorâneo insular de Floresta Atlântica. Amostragens foram realizadas durante uma fase de campo realizada em 13 de julho de 2009, em um riacho de água salobra localizado na porção nordeste da Ilha do Mel, localizada em região meridional de distribuição da Floresta Atlântica no sul do Bra...