Download PDF by Tadashi Kawai, Neil Cumberlidge: A Global Overview of the Conservation of Freshwater Decapod

By Tadashi Kawai, Neil Cumberlidge

ISBN-10: 3319425250

ISBN-13: 9783319425252

ISBN-10: 3319425277

ISBN-13: 9783319425276

This publication introduces up-to-date details on conservation concerns, offering an outline of what's had to improve the worldwide conservation of freshwater decapods resembling freshwater crabs, crayfish, and shrimps.

Biodiversity loss commonly is optimum in organisms that rely on intact freshwater habitats, simply because freshwater ecosystems all over the world are anguish excessive threats from a number of assets. Our realizing of the quantity and placement of threatened species of decapods, and of the character in their extinction threats has more desirable enormously in recent times, and has enabled the improvement of species conservation innovations.

This quantity makes a speciality of saving threatened species from extinction, and emphasizes the significance of the winning implementation of conservation motion plans via cooperation among scientists, conservationists, educators, investment corporations, coverage makers, and conservation agencies.

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Extra info for A Global Overview of the Conservation of Freshwater Decapod Crustaceans

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Density estimates for the troglobitic species, Aegla microphthalma and A. leptochela, are low, and less than one individual/m2 (Moracchioli 1994; Maia et al. 2013). 5 m2 and 12/m2 for Aegla perobae, A. paulensis and A. platensis, respectively (Bueno and Bond-Buckup 2000; Bueno et al. 2007, 2014b; Cohen et al. 2013). 1 Biology Population Size Structure and Sexual Dimorphism As a rule, male aeglids attain a larger body size than females (Swiech-Ayoub and Masunari 2001b; Noro and Buckup 2002; Fransozo et al.

Bourles, B. (2007). Freshwater paths across the ocean: molecular phylogeny of the frog Ptychadena newtoni gives insights into amphibian colonization of oceanic islands. Journal of Biogeography, 34, 7–20. , Tittensor, D. , Simpson, A. G. , & Worm, B. (2011). How many species are there on earth and in the ocean? PLoS Biology, 9, e1001127. 1001127. Ng, P. K. L. (1988). The freshwater crabs of Peninsular Malaysia and Singapore. Singapore: Shinglee Press. Ng, P. K. , & Naiyanetr, P. (1993). New and recently described freshwater crabs (Crustacea: Decapoda: Brachyura: Potamidae, Gecarcinucidae and Parathelphusidae) from Thailand.

Functional maturity in adult males is therefore associated with the appearance of morphotype II, although mating will only take place when females are fully mature and ready to spawn. Larger and stronger chelae in adult males are advantageous in aggressive interactions between males during the mating period (Viau et al. 2006). In the case of Aegla franca, however, sexual selection would only involve adult male morphotype II individuals. 3 Postembryonic Development The postembryonic development in Aegla is direct (see Sect.

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A Global Overview of the Conservation of Freshwater Decapod Crustaceans by Tadashi Kawai, Neil Cumberlidge

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