Four isolated canid skulls from four sites (Badyarikha River, Tirekhtyakh River, Ulakhan
Sular, Malyi Lyakhovsky Island) in the Sakha Republic of northern Siberia are here …

Fish assemblages in tropical lowland rivers are characterized by a high richness of species
that feed on a diverse array of food resources. Although closely related species often have …

The relationships among the morphology, trophic ecology, and use of food resources by fish
fauna in a pristine stream in Iguaçu National Park (INP), Brazil were evaluated. We expected …

Aim Present a hybrid biogeographic and environmentally constrained clustering approach to
classify~ 853,000 stream reaches in the eastern United States. Examine the frequency of …

Risk-taking behaviours that are optimal in one context (predators absent) may be suboptimal
in a different context (predators present), suggesting that individuals with 'bold'behaviours …

The feeding organ of cephalopod species, the beak, can be used to reveal important
ecological information. In this study, geometric morphometric approaches were employed to …

Zebrafish (Danio rerio) adults are viewed as sexually dimorphic. However, current
approaches to sex discrimination rely mainly on subjective assessment of color patterns and …

Fish ecomorphological analyses often deal with several traits simultaneously, making it
challenging to interpret general patterns, and have not addressed the longitudinal …

Morphological variation is fundamentally related to various aspects of fish ecology, including
foraging, locomotion, and habitat utilisation. Twenty-six species of closely related cyprinid …

The investigation of habitat use and its relationship to phylogeny among co-occurring
species provides knowledge of ecological and evolutionary parameters important for the …