The article is devoted to the comparison of nootropic activity grape polyphenoles in resveratrol and food concentrate “Enoant” at doses 20 mg/kg, using Barnes maze animals. It was found out that demonstrate positive effect maze, which expressed by changes time spent on searching for a burrow number incorrect definitions true burrow.

For most insects, size determines the call frequency. This paper describes the acoustics of a small brachypterous cricket (Rufocephalus sp.; body length 9.6 mm) producing a call with a carrier frequency of approximately 3.2 kHz from a subterranean burrow. Crickets such as Gryllus campestris are approximately twice this length and produce a call frequency close to 5 kHz. The burrow of Rufocephal...

Present study was conducted in fish hatcheries, nurseries and culture farms to find out different chemicals used in freshwater aquaculture activities in Noakhali District, Bangladesh. Data were collected through questionnaire interview, personal contact, market survey and participatory rural appraisal (PRA) like focus group discussion (FGD) with fish hatchery owners, nursery and culture farmers...

The land crab Gecarcinus quadratus is an engineering species that controls nutrient cycling in tropical forests. Factors regulating their coastal distribution are not fully understood. We quantified land crab distribution during the dry season at Sirena Field Station in Corcovado National Park, Costa Rica, and found that land crab burrow density decreases with increasing distance from the ocean...

sufficient selective advantage to lead us to expect that a species whose habits meet the physical requirements will capitalize on passive ventilation. Furthermore, demonstration that active pumping can be adequate to meet an animal's respiratory needs does not constitute evidence that the animal cannot benefit from passive ventilation. All of the studies cited by Hoffman and Mangum were carried...

Constructing a home to protect offspring while they mature is common in many vertebrate groups, but has not previously been reported in lizards. Here we provide the first example of a lizard that constructs a long-term home for family members, and a rare case of lizards behaving cooperatively. The great desert skink, Liopholis kintorei from Central Australia, constructs an elaborate multi-tunne...

Water samples of some burrow pits in Kano metropolis were examined for Microcystis aeruginosa and their ability to produce toxins. Identification for the organisms was achieved by the use of standard procedure and its pure culture was obtained by capillary pipette technique. The pure culture was harvested and dried at 25oC. These were kept in refrigerator before being subjected for the analysis...

The use of indirect estimates of ghost-crab populations to assess beach disturbance has several advantages, including non-destructiveness, ease and low cost, although this strategy may add some degree of noise to estimates of population parameters. Resolution of these shortcomings may allow wider use of these populations as an indicator of differences in quality among beaches. This study analyz...