At least half of the crabs fitted with radio transmitters descended to the lowest shore terrace, immediately above the ocean.
The migratory season" (initiated by the arrival of the wet season, usually in November or December) is used in this study to collectively refer to the breeding behavior of the crabs, including the annual breeding migration, the related breeding activities, and the return journey from the shore terraces to the forest.
Three points have became apparent: firstly, crabs traveled predominantly towards the northwestern shore, which for some of the crabs was twice as far away as the southeastern shore; secondly, the crabs have specific shore destinations to which they apparently return each year; and thirdly, crabs originating from any one area on the plateau tend to travel in a similar direction and thereby reach the shore terraces in proximity to one another.
A consequence of this behavior is to minimize the duration of time that the entire island's red crab population is crowded on the shore terraces and the subsequent depletion of local food resources.
natalis completes its annual breeding activities, most crabs leave the lowest shore terraces and return to the upper terraces and the plateau.
Depute fiscal Claire Millar said Ross had left the dumper truck on a building site at Shore Terrace, Dundee, after he finished work on August 26 but kept his set of keys.
He had not been drinking for some time and he found himself in a pub near Shore Terrace.
The centre in Shore Terrace
will offer help on a variety of issues including bullying, drug and alcohol abuse as well as advice on sex.
In contrast, crabs returning from breeding activities on the shore terraces had significantly depleted glycogen stores.
During their migration, red crabs must sustain locomotion for up to 6 consecutive days to reach the shore terraces where the males construct and defend burrows and engage in mating activities (Hicks et al.
Alternatively, do they take more time to complete the downward migration--thus arriving at the shore terraces fit for combat, with ample energy stores--and then attempt to displace already reside nt crabs from their burrows?
The second group, referred to as the "PM" group, consisted of crabs sampled in the afternoon, at about 1630, after they had been walking for most of the day (Adamczewska and Morris, 2001) and had crossed Murray Road towards the shore terraces and the coast.