Zoogeography, Taxonomy, and Conservation of West Virginia's Ohio River Floodplain Crayfishes (Decapoda, Cambaridae)
Zoogeography, Taxonomy, and Conservation of West Virginia's Ohio River Floodplain Crayfishes (Decapoda, Cambaridae)

Author: Zachary J. Loughman

Publisher: PenSoft Publishers LTD

Published: 2011-01-06

Total Pages: 87

ISBN-13: 9546425702

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The crayfish fauna of West Virginia consists of 23 species and several undescribed taxa. Most survey efforts documenting this fauna have been conducted in lotic waterways throughout the Appalachian plateau, Allegheny Mountains, and Ridge and Valley physiographic provinces. Bottomland forests, swamps, and marshes associated with large river floodplains such as the Ohio River floodplain historically have been under-surveyed, though these habitats harbor the richest primary burrowing crayfish fauna in West Virginia. The crayfish fauna of West Virginia?s Ohio River floodplain was surveyed from 2004 through 2009.ÿ From this survey, nine species from four genera were documented inhabiting the floodplain. Zoogeography, biology, and conservation status is provided for the nine species encountered in the survey, as well as a review of crayfish collection methods and a dichotomous key to West Virginia Ohio River floodplain crayfish species.

A Global Overview of the Conservation of Freshwater Decapod Crustaceans
A Global Overview of the Conservation of Freshwater Decapod Crustaceans

Author: Tadashi Kawai

Publisher: Springer

Published: 2016-10-26

Total Pages: 444

ISBN-13: 3319425277

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This book introduces updated information on conservation issues, providing an overview of what is needed to advance the global conservation of freshwater decapods such as freshwater crabs, crayfish, and shrimps. Biodiversity loss in general is highest in organisms that depend on intact freshwater habitats, because freshwater ecosystems worldwide are suffering intense threats from multiple sources. Our understanding of the number and location of threatened species of decapods, and of the nature of their extinction threats has improved greatly in recent years, and has enabled the development of species conservation strategies. This volume focuses on saving threatened species from extinction, and emphasizes the importance of the successful implementation of conservation action plans through cooperation between scientists, conservationists, educators, funding agencies, policy makers, and conservation agencies.

Cave Biology
Cave Biology

Author: Aldemaro Romero Díaz

Publisher: Cambridge University Press

Published: 2009-07-23

Total Pages: 318

ISBN-13: 0521828465

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A critical examination of current knowledge and ideas on cave biology, with emphasis on evolution, ecology, and conservation.

Modulation of Synaptic Transmission and Plasticity in Nervous Systems
Modulation of Synaptic Transmission and Plasticity in Nervous Systems

Author: Georg Hertting

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 458

ISBN-13: 3642731600

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This volume is based on a workshop "Modulation of Synaptic Transmission and Plasticity in Nervous Systems" held in n Ciocco, Castelvecchio, Pascoli, Italy, from September 8th to 13th, 1987. The purpose of the meeting was to bring together scientists working on plasticity in nervous systems on different levels. The contributions can be subgrouped into six fields of research: 1) Presynaptic Modulation of Chemical Neurotransmission 2) Postsynaptic Signal Transduction 3) Modulation of Synaptic Transmission and Plasticity in the Hippocampus 4) Modulation of Neuromuscular Transmission 5) Molecular and Cellular Analysis of Conditioning in Marine Snails 6) Analysis of Learning and Memory in Insects Understanding how nervous systems and in particular our brain processes and stores information has been a major challenge in science for centuries and will remain for some time to come. Not until recently neurobiologists agreed to seek plasticity of behavior primarily in the modulation of the properties of synapses between nerve cells. This is to be understood within the context provided by a neural circuitry. An important stimulus came from the work on the marine snail Aplysia, where learning processes can be described as a modulation of transmitter release, traced back to a complete chain of molecular events in an identified neuron. Learning became a topic of molecular biology. Three systems appear particularly promising for this approach: insects, in particular Drosophila, marine snails and the mammalian hippocampal tissue. Our views on neurotransmission have rapidly changed.