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Óleo essencial de Lippia alba como sedativo e anestésico em diversos animais aquáticos
(Universidade Federal de Santa Maria, 2016-03-30)
The use of anesthetics in aquaculture and research stations is a very important tool to
minimize both the damage and the consequent stress caused by routine activities, as well mortality of
the animals. This thesis is ...
Evolução molecular e padrões macro e micro evolutivos em Drosophila incompta (Diptera, Drosophilidae)
(Universidade Federal de Santa Maria, 2016-03-28)
The flavopilosa group was proposed by Wheeler and colleagues in 1962. In taxonomic terms, it seems to be a monophyletic group, belonging to virilis-repleta radiation of the Drosophila subgenus. However, the exact position ...
Agressão interespecífica em lagostins: invasões biológicas, dominância e exclusão competitiva (Crustacea: Astacidea)
(Universidade Federal de Santa Maria, 2016-01-29)
Interspecific aggression is a common ecological phenomenon, but is still very poorly understood. It is related to the obtention of resources, geographic distribution patterns and species replacement, in the case of biological ...
Distribuição de macroinvertebrados, com ênfase no gênero Hyalella (Crustacea: Peracarida: Amphipoda), em ambientes lênticos e lóticos do sul do Brasil
(Universidade Federal de Santa Maria, 2015-07-24)
Aquatic environments have been altered due to the increase of anthropogenic activities. The degradation of aquatic ecosystems has reached alarming levels, particularly in freshwater ecosystems. Water resources monitoring ...
Um conto sobre a agressividade: valor de recurso, tomada de decisão e adaptações morfológicas
(Universidade Federal de Santa Maria, 2017-02-15)
Agonistic behavior is ubiquituous in nature. Hence, understanding how and why it occurs is fundamental for unravelling its influence in the evolution of behavior. The goals of this thesis are: to test the influence of ...
Biomarcadores de toxicidade em Loricariichthys anus (Valenciennes, 1835) e Geophagus brasiliensis (Quoy & Gaimard, 1824): influência de variáveis abióticas e da poluição agrícola
(Universidade Federal de Santa Maria, 2019-04-02)
Limnic environments are threatened worldwide, receiving loads of pollutants from various anthropogenic
activities. Brazil is one of the largest consumers of agrochemicals, especially pesticides.
These will eventually ...
Origem e irradiação dos sauropodomorfos: novos espécimes e suas implicações
(Universidade Federal de Santa Maria, 2018-12-11)
The origin and early irradiation of sauropodomorph dinosaurs received much attention in response of new
discoveries from fossiliferous strata from South America. However, there are still doubts regarding the
transitionary ...
Variação geográfica do tamanho e forma do crânio de mamíferos com ampla distribuição na América do Sul (Marsupialia, Xenarthra e Glires)
(Universidade Federal de Santa Maria, 2018-02-23)
Skulls are complex morphological structures that exhibit phenotypic plasticity and adaptations to
different functions and processes, and are under different pressures, such as the geographical or
environmental ones. South ...
Biomarcadores bioquímicos e elementos-traço em aves aquáticas não passeriformes em áreas úmidas
(Universidade Federal de Santa Maria, 2016-05-30)
Trace elements exert influence on aquatic ecosystems. Some, such as copper and zinc are essential to
living organisms in small concentrations, but they may become toxic at high concentrations. Others,
with unknown ...
Diversidade e distribuição espacial de Elmidae (Coleoptera) no estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2018-03-09)
The objective of this study was to i) Analyze how the assemblages of larvae and adults
of Elmidae respond to forest conversion in a subtropical area preserved in semideciduous
Atlantic Forest; ii) Evaluate the influence ...