Polydactylism, a genetic defect characterized by partial or complete duplication of the digit, has been described in a wide range of vertebrates. Among ungulates, polydactyly appears to be relatively common in domestic ...

The effects of global glaciations on the distribution of organisms is an essential element of many diversification models. However, the empirical evidence supporting this idea is mixed, in particular with respect to ...

In the present paper we study different conditions regarding the sum of operator ranges. In particular, we find conditions on operators A, B which imply that R(A+B)=R(A)+R(B) and derive some results concerning projections.

Extinction risk has not been evaluated for 96% of all described plant species. Given that the Global Strategy for Plant Conservation proposes preliminary conservation assessments of all described plant species by 2010, ...

The process of research, development and improvement in data communication techniques are some of the most important points that ensure the reliability and performance of automotive engine, results of a more advanced ...

Encounter rates link movement strategies to intra- and inter-specific interactions, and therefore translate individual movement behavior into higher-level ecological processes. Indeed, a large body of interacting population ...

In the range alpha-majority query problem, we are given a sequence S[1 horizontal ellipsis n] and a fixed threshold alpha is an element of(0,1), and are asked to preprocess S such that, given a query range [i horizontal ...

Zaprionus indianus is a fly species native to the Afrotropical biogeographic region that invaded the South American continent 20 years ago. Its southernmost record is 34°S in areas with temperate climates with cold winters. ...

Aim Identifying factors that limit species distributions is a fundamental question in ecology with implications for understanding global biodiversity patterns and species responses to environmental change. Theory suggests ...

In order to investigate and create an ethogram of the rolling behavior of mules (Equus caballus × Equus asinus) in comparison to that of horses (Equus caballus), we observed a domestic free-range, mixed group of 17 horses ...