Continuous, video-recording assessment of daily activity cycle of the ghost crab Ocypode quadrata Fabricius, 1787 (Brachyura: Ocypodidae) in southeastern Brazil

Is Ocypode Quadrata (fabricius, 1787) a Useful Tool for Exposed Sandy Beaches Management in Bahia State (northeast Brazil)?

Moderate Dehydration Decreases Locomotor Performance of the Ghost Crab, Ocypode quadrata

The effect of dehydration on the aerobic metabolism and endurance of sustained, terrestrial locomotion was determined for the ghost crab, Ocypode quadrata. The rate of evaporative water loss, measured as the percentage of decrease in body mass per hour, was influenced by ambient temperature (Ta). Increasing Ta from 240 C to 300 C (40%-50% relative humidity) increased the rate of water loss from...

Skeletal muscle fiber types in the ghost crab, Ocypode quadrata: implications for running performance.

Ghost crabs possess rapid running capabilities, which make them good candidates for comparing invertebrate exercise physiology with that of more extensively studied vertebrates. While a number of studies have examined various aspects of running physiology and biomechanics in terrestrial crabs, none to date have defined the basic skeletal muscle fiber types that power locomotion. In the current ...

The ghost crab Ocypode mortoni George, 1982 (Crustacea: Decapoda: Ocypodidae): redescription, distribution at its type locality, and the phylogeny of East Asian Ocypode species

The ghost crab Ocypode mortoni George, 1982 was first described from the sandy shores of Sai Wan, Hong Kong, and although also identified from South China and Japan, has not been subsequently recorded in Hong Kong. The taxonomic status of O. mortoni is not clear as its original morphological description was not detailed, and there remains no information on its vertical and horizontal ecological...

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...