Migratory species are widespread in terrestrial, aquatic and aerial environments, and are
important both ecologically and economically. Since migration is an adaptive response to …

Most semiterrestrial, intertidal and shallow subtidal brachyuran crabs that live in tropical and
warm temperate estuaries, bays and protected coasts world-wide release their planktonic …

Brachyuran crabs are sexually dimorphic, gonochoristic crustaceans (separate sexes, no
sex change). Dimorphism is expressed in the shape of the pleon (abdomen) and its …

Many species exhibit high intraspecific color variation between sexes or ontogenetic phases
due to sexual selection or sex-/age-specific differential predation. In crabs, the function and …

A new family Leptograpsodidae n. fam. is erected to include an unusual genus of grapsoid
crabs, Leptograpsodes, represented by a burrowing species from South Australia L …

The life history of insular gecarcinid crabs is divided into a marine larval and an adult phase,
adapted to the terrestrial environment. As adults, individuals migrate seasonally to locations …

The population structure of the land crab Johngarthia lagostoma was studied on Ascension
Island from 2005-2007, predominantly during the period of the seaward breeding …

Reproduction was studied in the land crab Johngarthia lagostoma on Ascension Island in
the central South Atlantic from 2005 to 2008. Both sexes are mature by 60-70 mm carapace …

Most oceanic islands harbor unusual and vulnerable biotas as a result of isolation. As many
groups, including dominant competitors and predators, have not naturally reached remote …

ABSTRACT A study was made of the land crab, Johngarthia lagostoma (H. Milne Edwards,
183 Ascension Island in the central South Atlantic: aspects of its distribution, population str …