Orchid bees (Apidae, Euglossini) are important Neotropical pollinators. Two main features characterize these species: the tongue, which reaches at least half the body length, enabling the search for food resources in ...

Pimelodidae comprises 114 valid species, whith few of them are cytogenetically characterized, mainly, especially with respect to molecular cytogenetics. In addition, the species taxonomic delimitation is still very imprecise ...

The order Osteoglossiformes represent one of the most basal groups among the Teleosteos. These fishes live exclusively on freshwater environments and are characterized by the presence of a bonytongue. The group is a good ...

Fertility is directly related to oocyte developmental competence. In this context, oocyte mitochondria play a crucial role and have become an important target in assisted reproduction therapies. However, the molecular ...

Boophilus microplus tick affects cattle productivity causing economic losses in the order of billions of dollars annually. It is know that tick saliva exert immunomodulatory effects, an evolutionary adaptation to the ...

Canchim is a synthetic breed that has been used in the beef cattle industry as an alternative for production intensification. However, this breed has poor fat deposition. Therefore researches have been done with the objective ...

Brazilian livestock production presents great impact for the national agriculture, possessing the largest bovine commercial herd of the world. However, the productivity is low and gastrintestinal diseases caused by Haemonchus ...

In the last 40 years, the use of pesticides increased 700% in Brazil, setting this country into the very consumers of this kind of chemicals in the world. There among the most used pesticides in Brazil are the pyrethroids, ...

Due to the great economic importance of sugarcane crop in Brazil, the occurrence of infections by phytopathogens leading to decreased productivity and quality remains a serious problem. As the plants have natural mechanisms ...

Several Psittacidae species, as those of Ara genus, have biological characteristics frequently associate with extinction risk. These include corporal size, specialized food preferences, low rate of population growth, ...