Several arthropod species use chemicals to detect sexual partners. In harvestmen (Arachnida, Opiliones) there are evidences that chemicals have an important role in intra-specific communication. Using the behavior of ...

The mountains of the Brazilian Atlantic Forest have a high degree of endemism and its biogeographical history is poorly explored. One hypothesis for the diversification of montane organisms, related to the refuge theory, ...

The heteropteran head presents a high specialization level, making this group known for having, among other features, their piercing and sucking mouthparts in the anterior part of the head. Pentatomidae is the forth most ...

A central question in ecology and evolutionary biology is to explain large-scale spatial patterns of variation in body size. Explaining these patterns is important because larger individuals may show advantages in fitness ...

It is estimated that in Brazil there are between 4,000 and 6,000 species of Heteroptera, however, knowledge about the regional fauna is still limited. For the state of São Paulo, the knowledge of the fauna of Heteroptera ...

Animals may use external or internal cues to navigate towards an original location. Here we studied the homing ability of the harvestman Heteromitobates discolor (Arachnida, Opiliones). We tested the importance of (1) their ...

There is evidence that in reptiles there is the ability to regulate the rate of heat exchange between the body and the means adjusting the peripheral blood flow and for this by increasing or decreasing the heart rate. This ...

Few environmental factors exert so much influence on the physiology of animals as temperature. Each activity carried out by an animal occurs in a range of body temperatures that is physiologically appropriate. Some reptiles ...

Most studies about the effects of anthropogenic landscape changes on biodiversity have focused on parameters such as species richness and abundance. Few are those that aim to understand the effects of these disturbances ...

Ectotherms must regulate body tempetarute inside a tolerable range of temperature to optmize physiological functions. In this context, behavioural thermoregulation is an important strategy for metabolic compensation. Shifts ...