Category: Zoology

Spontaneous Alternation Behavior by William N. Dember,Charles L. Richman

By William N. Dember,Charles L. Richman

a wide selection of species, together with humans, shows a remarkably trustworthy habit trend, referred to as spontaneous alternation habit (SAB), that has intrigued researchers for over seven a long time. even though the main points might fluctuate reckoning on species and surroundings, SAB primarily involves first selecting one member of a couple of possible choices after which the opposite, with out directions or incen­ tives to take action. Spontaneous alternation is manifested even within the early trials of a discrimination-learning scan, the place just one of the alternatives is strengthened. certainly, that was once the surroundings within which SAB was once first famous (Hunter, 1914). Rein­ forcement contingencies, obviously, are superimposed, no longer on a random series of selections, yet on a powerful, systematic habit development. This ebook is the 1st to be dedicated fullyyt to SAB and heavily similar phenomena, resembling habituation and exploration. The literature on SAB is tremendous, protecting a bunch of questions starting from the cues that advisor alternation to its phylogenetic and ontogenetic generality, its relation to studying and motivation, and its neurochemical substrates. In separate chapters we absorb all of the significant matters, reviewing what's recognized in regards to the a number of aspects of SAB and revealing parts of lack of knowledge. The bankruptcy authors have been inspired to debate their very own study the place pertinent, a few of it as but unpublished, certainly a few performed particularly for this volume.

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Amphibians and reptiles (Naturalists' Handbooks Book 31) by Trevor J. C. Beebee

By Trevor J. C. Beebee

Amphibians and reptiles is a finished advisor to the local and non-native species of amphibian and reptile present in the British Isles. Professor Trevor Beebee covers the biology, ecology, conservation and id of the British herpetofauna, and offers keys for the identity of grownup and immature newts and newt eggs, larvae and metamorphs; frog and toad adults and metamorphs, spawn and larvae; grownup and hatchling limbed lizards; and grownup snakes. Distribution maps are integrated for all species, and the e-book is illustrated all through with color pictures and figures.

The target of this ebook is to motivate readers to boost their very own ecological stories, to this finish, the writer summarises the present country of information of reptile and amphibian biology, together with behaviour, breeding, habitat choice, migration and improvement, and gives rules for learn tasks which may be undertaken to additional what's identified. A bankruptcy is dedicated to the practicalities paintings with amphibians and reptiles, together with licensing specifications. learn suggestions, together with survey tools corresponding to evening searches for newts and bottle trapping, are mentioned intimately, and attention is given to tools of information analysis.

Author royalties from this ebook were donated to Amphibian and Reptile Conservation.

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Das Protistenreich (German Edition) by Ernst Haeckel

By Ernst Haeckel

"Für das tiefere Verständnis unserer heutigen Entwicklungslehre und der darauf gegründeten einheitlichen Weltanschauung dürften wenige Zweige der Naturwissenschaft von so fundamentaler Bedeutung sein, wie die Naturgeschichte der niedersten Lebewesen, der sogenannten Protisten. Denn die urwüchsige Einfachheit im Körperbau und in den Lebens-Erscheinungen dieser unvollkommnen „Urwesen" öffnet uns erst den wahren Weg für das Verständnis der viel entwickelteren und schwierigeren Erscheinungen, welche uns die Anatomie und Physiologie der höheren und vollkommneren Organismen, der echten Tiere und Pflanzen darbietet. Dennoch ist die Bekanntschaft mit den Protisten bisher speedy nur auf die gelehrten Fachkreise beschränkt geblieben und erst sehr wenig in weitere Kreise eingedrungen. Das ist auch leicht erklärlich. Denn die grosse Mehrzahl jener einfachsten Lebensformen, die wir im „Protistenreich" zusammenfassen, ist dem unbewaffneten Auge völlig verborgen. Erst durch das Mikroskop können wir sie erkennen, und meistens erst mit Hilfe starker Vergrösserungen ihre Form-Verhältnisse genau erforschen." [...]

Ernst Haeckel (1834 – 1919) conflict ein deutscher Zoologe, Philosoph und Freidenker. In seinem hier vorliegenden Werk hat er sich den Protisten angenommen. Er beschreibt diese ein- bis mehrzelligen Lebewesen und ihren Lebensraum. Am Ende findet sich ein approach, in dem die Protisten verschiedenen Klassen zugeordnet sind.
Dieses Buch ist ein unveränderter Nachdruck der Originalausgabe von 1878.

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The History of British Mammals (Poyser Natural History) by Derek Yalden,Priscilla Barrett

By Derek Yalden,Priscilla Barrett

As ice retreated from Britain 15,000 years in the past, a number of huge mammals together with reindeer, wild horses, wooly mammoths, moose, wolves, brown bears, lynxes and wolverines demonstrated itself in Britain. the most important surviving wild land mammal this day, the crimson deer, the biggest modern land carnivore, the badger and one other sixty five or so extant wild mammals incorporated a couple of area of the wild mammals which have been brought within the final 15,000 years. The modern fauna, although, is basically ruled by way of household animals, resembling livestock, sheep, pigs and people. This publication explores the destiny of the big extinct species, in addition to how, why, and whilst the brought species appeared.

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Nerve, Organ, and Tissue Regeneration: Research Perspectives by Fredrick Seil

By Fredrick Seil

Nerve, Organ, and Tissue Regeneration: examine views offers the court cases of a symposium held in Harpers Ferry, West Virginia, on September 21–24, 1982. This ebook explores the neural and nonneural parts of regeneration, with emphasis at the apprehensive process.
Organized into six components encompassing 22 chapters, this compilation of papers examines the dedication of the Veterans management to accommodate the medical challenge of spinal wire harm through constructing 19spinal wire damage therapy and rehabilitation facilities through the usa. This booklet then discusses the features of the neuronal reaction to axon damage, which differ from mobile hypertrophy and heightened metabolism to telephone loss of life. different chapters ponder the 3 levels of axonal regeneration, together with sprout formation, elongation, and maturation. the ultimate bankruptcy bargains with the structural and practical changes that constructed while the size of the mammalian gut is shortened by means of excision or by-pass of a protracted section.
This publication is a important source for biologists, orthopedic surgeons, and neuroscientists.

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Vertebrates: Comparative Anatomy, Function, Evolution by Kardong

By Kardong

This one-semester textual content is designed for an upper-level majors path. Vertebrates contains a special emphasis on functionality and evolution of vertebrates, whole anatomical aspect, and ideal pedagogy. Vertebrate teams are equipped phylogenetically, and their platforms mentioned inside of this sort of context. Morphology is ultimate, however the writer has constructed and built-in an knowing of functionality and evolution into the dialogue of anatomy of a few of the systems.

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Animal Models of Ophthalmic Diseases (Essentials in by Chi-Chao Chan

By Chi-Chao Chan

This publication describes experimental animal versions that mimic universal human ocular illnesses: herpetic keratitis, cataract, glaucoma, age-related macular degeneration, diabetic retinopathy, uveitis, retinitis pigmentosa, Graves’ affliction, and intraocular tumors. In conjunction, those versions replicate the variety and software of instruments used to review human disease. World professional clinicians talk about every one version according to their scientific adventure and the textual content is supported by means of quite a few photographs and diagrams. In describing the main pertinent animal versions of ophthalmic illnesses, this ebook can be of curiosity to ophthalmologists, imaginative and prescient researchers, fellows, citizens and scientific students.

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Conservation in the 21st Century: Gorillas as a Case Study by T.S. Stoinski,H. D. Steklis,P.T. Mehlman

By T.S. Stoinski,H. D. Steklis,P.T. Mehlman

This quantity identifies the first difficulties confronted in maintaining wild populations of gorillas all through Africa, pinpointing new ways to fixing those difficulties and outlining the elevated position that zoos can play in gorilla conservation. It contains the in-depth services of box scientists in various disciplines to debate present conservation threats, novel techniques to conservation, and capability solutions.

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Development and Plasticity in Sensory Thalamus and Cortex by Reha Erzurumlu,William Guido,Zoltan Molnar

By Reha Erzurumlu,William Guido,Zoltan Molnar

improvement & Plasticity in Sensory Thalamus & Cortex relies on a 2-day symposium provided for the 1st time at SFN 2003. The symposium interested by the most recent findings and concepts, concentrating on visible and somatosensory thalamus and neocortex in rodents and carnivores and practical imaging reports in constructing and getting older human neocortex, in addition to plastic adjustments after spinal twine damage. This quantity will hide contemporary advances in figuring out sensory thalamic and cortical functionality, association, and plasticity. Chapters will conceal a huge diversity of methods from unmarried phone recordings to viral gene move to transgenic and knockout mouse versions to useful imaging in human cortex. The textual content is meant to supply an replace at the multitude of technical and experimental techniques in realizing the improvement and plasticity of the mammalian sensory thalamus and neocortex and supply a man-made theoretical framework for destiny studies.

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Marine Bivalve Molluscs by Elizabeth Gosling

By Elizabeth Gosling

Marine Bivalve Molluscs is a finished and carefully up-to-date moment version of Bivalve Molluscs, overlaying all significant facets of this crucial classification of invertebrates. in addition to being a tremendous category biologically and ecologically, a few of the bivalves are fished and cultured commercially (e.g. mussels, oysters, scallops and clams) in a multi-billion buck all over the world industry.

Elizabeth Gosling has written a landmark publication that may stand for a few years because the commonplace paintings at the topic. Chapters in Marine Bivalve Molluscs hide morphology, ecology, feeding, copy, payment and recruitment, development, body structure, fisheries, aquaculture, genetics, ailments and parasites, and public health and wellbeing matters. a whole knowing of a lot of those elements is essential for all these operating in bivalve fisheries and culture.

a necessary buy for an individual interested in this crucial type of animals, copies of Marine Bivalve Molluscs may be at the cabinets of biologists, ecologists, environmental scientists, fisheries scientists and group of workers in the aquaculture undefined. Copies of the e-book might be on hand in all libraries and examine institutions the place those matters are studied or taught.

experiences of the 1st Edition
• An admirable achievement... a precious addition to marine sciences libraries all over the place. The again conceal of this publication says that it's a landmark textual content that might stand for a few years because the commonplace paintings in this topic. i will be able to simply trust this sentiment. Aquaculture
• A welcome boost to the literature and offers the reader with a complete evaluate of organic and environmental components that impact and keep an eye on either typical populations of marine bivalves and tradition operations. Aquaculture International
• the writer has performed an admirable activity in compiling a wealth of data right into a readable textual content. Transactions of the yank Fisheries Society
• Will serve good as an outline of a lot of either the experimental biology and the aquaculture of bivalves. Journal of Experimental Marine Biology and Ecology
• presents very good experiences of all significant aspects…an vitally important reference for a person engaged in bivalve examine, fisheries administration, and aquaculture. Quarterly assessment of Biology
• The booklet is particularly readable, in a simple variety. it really is good illustrated and there's a wealth of knowledge and records offered. Bulletin of The Malacological Society of London

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