Food Aversion Learning by the Hermit Crab Pagurus granosimanus
نویسندگان
چکیده
منابع مشابه
Asymmetry of the motor system in the hermit crab Pagurus granosimanus Stimpson.
Although much is known about the physiology of the neuromuscular junction and its role in initiating muscular contraction in crustaceans, less attention has been devoted to the central events which select and control contraction. The mechanisms which shape the discharge patterns of motoneurons are best known for the escape reflex of the crayfish abdomen, mediated by giant fibres, and for the ne...
متن کاملSensory modalities and receptive fields in the abdominal nervous system of the hermit crab, Pagurus granosimanus (Stimpson).
The way in which adaptation to a particular environment takes place within the central nervous system of vertebrates has been the subject of research for over a hundred years. The development of specific reflexes from generalized action patterns, the precedence of changes in motor systems over changes in sensory systems, and the metamorphosis of sensory relay nuclei and centres of primary integ...
متن کاملAvoidance of drilled gastropod shells by the hermit crab Pagurus longicarpus at Nahant, Massachusetts.
Most hermit crabs depend on empty gastropod shells for shelter; competition for appropriate shells is often severe. This study determined whether shells that have been drilled by naticid gastropods are suitable for occupancy by the hermit crab Pagurus longicarpus. Differences in the characteristics of empty shells and those occupied by hermit crabs were assessed at two adjacent field sites in N...
متن کاملTaxonomic re-examination of the hermit crab species Pagurus forceps and Pagurus comptus (Decapoda: Paguridae) by molecular analysis
The current taxonomy of two poorly known hermit crab species Pagurus forceps H. Milne Edwards, 1836 and Pagurus comptus White, 1847 from temperate Pacific and Atlantic coastlines of South America is based only on adult morphology. Past studies have questioned the separation of these two very similar species, which occur sympatrically. We included specimens morphologically assignable to P. force...
متن کاملReproductive and larval biology of the sub-Antarctic hermit crab Pagurus comptus reared in the laboratory
Fecundity, hatching rhythm, and the planktotrophic larval development of the hermit crab Pagurus comptus from sub-Antarctic waters of the Beagle Channel (Tierra del Fuego) were studied under controlled laboratory conditions of temperature, light cycle, food supply, and salinity. Fecundity was low, ranging from 134 to 848 eggs per female (cephalotoraxic shield length, SL, 2.3^5.0mm). Hatching ob...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1990
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1541820