Journal ArticleDOI
Development, Fecundity and Brooding Behaviour of the Amphipod, Marinogammarus Obtusatus
M. Sheader,Fu-Shiang Chia +1 more
TLDR
In a preliminary survey of Cullercoats Bay, Northumberland, it is found that this species is by far the commonest amphipod present.Abstract:
Marinogammarus obtusatus Dahl, an intertidal amphipod, was first described by Dahl (1938). Prior to this date it appears that this species was often confused with and identified as M. marinus. In later years, M. obtusatus has been shown to be common around the coast of Britain (Sexton & Spooner, 1940), and in a preliminary survey of Cullercoats Bay, Northumberland, we have found that this species is by far the commonest amphipod present.read more
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Book ChapterDOI
Habitat Selection by Aquatic Invertebrates
P.S. Meadows,J.I. Campbell +1 more
TL;DR: This chapter explains why animals are found in certain habitats and not in others, and it is restricted to a consideration of habitat selection by marine and freshwater invertebrates as revealed by experimental analysis.
Journal ArticleDOI
A review of the reproductive bionomics of aquatic gammaridean amphipods: variation of life history traits with latitude, depth, salinity and superfamily
TL;DR: Life history traits for 302 populations of aquatic gammaridean amphipods, representing 214 species in 16 superfamilies, were reviewed and the importance of natural selection relative to phylogenetic and physiological constraints in the forging of these patterns is discussed.
Book
Evolutionary ecology of social and sexual systems : crustaceans as model organisms
J. Emmett Duffy,Martin Thiel +1 more
TL;DR: This book synthesizes the state of the field in crustacean behavior and sociobiology and places it in a conceptually based, comparative framework that will be valuable to active researchers and students in animal behavior, ecology, and evolutionary biology.
Journal ArticleDOI
Mate Selection and Precopulatory Guarding in Gammarus pulex
Tim R. Birkhead,K. Clarkson +1 more
TL;DR: In Gammarus pulex insemination is preceded by a period of precopulatory mate guarding by the male, pair formation is non-random in three respects, and large males are more likely to obtain females than smaller ones.
Journal ArticleDOI
Monogamy in Crustacea and Man
Wolfgang Wickler,Uta Seibt +1 more
TL;DR: Two different meanings of the term ‘monogamy’ are outlined and evolutionary convergencies, rather than the homologies, in social behaviour and social systems help in understanding the factor-network relevant to selection.
References
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Journal ArticleDOI
The reproductive cycle of some British freshwater Gammaridae
TL;DR: In most species each female is capable of producing several batches of eggs in succession, and at each moult she grows slightly, and the males moult at much longer intervals than the females.
Journal ArticleDOI
The Ecology of Gammarus duebeni Lilljeborg and its Occurrence in Fresh Water in Western Britain
Journal ArticleDOI
The Moulting and Growth-Stages of Gammarus, with Descriptions of the Normals and Intersexes of G. cheureuxi
TL;DR: Many of the difficultics found in naming and classifying Crustacea are due to the extraordinary modifications caused by growth and sex, and the confusion arising from the lack of knowledge of these developmental stages has led to many errors.
Journal ArticleDOI
Studies on Adaptation to Salinity in Gammarus Spp : 1. Regulation of Blood and Tissues and the Problem of Adaptation to Fresh Water
L. C. Beadle,J. B. Cragg +1 more
TL;DR: Four species of Gammarus were studied and the following hypothesis is suggested: Adaptation to fresh water has proceeded by two main stages: Probably by active ion absorption, a high blood concentration is maintained and is associated with a large blood/tissue C1 gradient, and a special mechanism is evolved for preventing the blood concentration from rising.