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Controle epigenético do elemento de transposição mariner em populações de Drosophila melanogaster
(Universidade Federal de Santa Maria, 2016-05-31)
One of transposons families most well-known is the mariner family. mariner is not found in natural populations of Drosophila melanogaster, however, white-peach mariner and Mos1 were introduced in this species by genetic ...
Potencial de dispersão de moluscos e macroinvertebrados de água doce por peixes neotropicais
(Universidade Federal de Santa Maria, 2016-03-31)
Mollusks can be a very frequent feeding item in the diet of many species of fishes inhabiting
the Neotropical region. However, the possibility of malacofagous fishes act as important
passive dispersors for native and ...
Influência da quantidade de floresta sobre a ocorrência de mamíferos carnívoros na Mata Atlântica brasileira
(Universidade Federal de Santa Maria, 2016-02-18)
Habitat fragmentation process is the main threat to the conservation of terrestrial mammals at the global level. Despite the importance of understanding the degree which species are sensitive to the effects of habitat ...
O que determina a variação do crânio em mamíferos? Avaliando as regras de Rensch e de Bergmann em primatas da América do Sul
(Universidade Federal de Santa Maria, 2016-08-29)
In this study our aim was to analyze if Rensch and Bergmann rules apply to South-American primates of the genera Sapajus and Alouatta, where males tend to be larger than females and if species tend to be larger at higher ...
Descrição de três novas espécies de Hyalella (Crustacea, Amphipoda, Hyalellidae) da região noroeste do estado do Rio Grande do Sul, Brasil
(Universidade Federal de Santa Maria, 2016-08-12)
Currently there are 68 species of Hyalella gender described, whereas in South America, the largest diversity of species is observed, 52 record species. The State of Rio Grande do Sul has nine species of this gender recorded. ...
Impacto da radiação solar sobre a aptidão e capacidade locomotora de girinos
(Universidade Federal de Santa Maria, 2016-03-22)
On the last decades, amphibian populations have been suffering a global decline, and different factors can be related to this process. Parallel observations between the decrease of stratospheric ozone concentration in the ...
Efeito de dieta suplementada com selênio em carpas (Cyprinus carpio) expostas a atrazina
(Universidade Federal de Santa Maria, 2016-03-09)
The water pollution, derived from several human activities, results in harmful effects to the ecosystems involved. In order to verify the potential toxicity of xenobiotics, it is usual to use carps (Cyprinus carpio) as ...
Etnoictiologia nas bacias dos rios Uruguai e Jacuí, Rio Grande do Sul, Brasil
(Universidade Federal de Santa Maria, 2016-04-01)
The ethnoichthyology seeks to understand the phenomenon of the interaction
between the human species and the fish, covering both cognitive and behavioural
aspects. Thus, the present study has the general objective to ...
Descrição e posicionamento filogenético de um novo espécime de sauropodomorfa da Formação Caturrita
(Universidade Federal de Santa Maria, 2016-02-22)
The present dissertation aims to present the osteological anatomy of an early sauropodomorph found in Triassic rocks from the municipality of Agudo, Rio Grande do Sul (RS), Brazil. In addition, it aims to tests the ...
Fatores determinantes da variação do crânio de canídeos sul-americanos
(Universidade Federal de Santa Maria, 2016-02-19)
Right after the arising of the Panama isthmus, the family Canidae colonized South America, around 2.6-2.4 million years ago. Although canids radiation in South America is recent, this region holds the largest canid diversity ...