Category: Zoology

The Hopes of Snakes: And Other Tales from the Urban - download pdf or read online

By Lisa Couturier

ISBN-10: 0807085650

ISBN-13: 9780807085653

In The Hopes of Snakes, Lisa Couturier celebrates the tales of forgotten, ignored animals who've tailored nobly to urban and suburban existence within the Northeast. With sharp belief and deep humanity, she has came across what's so striking within the nature we see commonly and illuminated it like not anyone sooner than her. The Hopes of Snakes is an eloquent and robust debut by way of the most effective new writers exploring nature within the humanized panorama.

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Pamela Forey's Instant Guide to Reptiles and Amphibians (Instant Guides PDF

By Pamela Forey

ISBN-10: 0517618001

ISBN-13: 9780517618004

An speedy advisor to Reptiles and Amphibians is a perfect compact identity consultant to the main general reptiles and amphibians of North the United States. so much amphibians are available in or close to water whereas lizards and snakes search drier environments. This booklet enables you to realize the most typical species of either that you're prone to encounter.
This ordinary advisor assumes no earlier wisdom: an easy-to-follow process of color-coded bands (denoting form of animal) and habitat symbols leads fast to the right kind part of the booklet. specific full-color illustrations, concise informative textual content, and a distribution map let you make a favorable identity. Symbols additionally alert you of competitive, poisonous or risky animals.

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Download PDF by Gene S. Helfman: Fish Conservation: A Guide to Understanding and Restoring

By Gene S. Helfman

ISBN-10: 1559635959

ISBN-13: 9781559635950

ISBN-10: 1559635967

ISBN-13: 9781559635967

Fish Conservation deals, for the 1st time in one quantity, a readable reference with a world method of marine and freshwater fish variety and fishery source matters. Gene Helfman brings jointly to be had wisdom at the decline and recovery of freshwater and marine fishes, delivering ecologically sound solutions to biodiversity declines in addition to to fishery administration difficulties on the subsistence, leisure, and advertisement degrees. Written in an interesting and obtainable variety, the book:considers the price of keeping aquatic biodiversityoffers an summary of imperiled fishes on a taxonomic and geographic basispresents a synthesis of universal features of imperiled fishes and their habitatsdetails anthropogenic motives of declineexamines human exploitation issuesaddresses moral questions surrounding exploitation of fishesThe ultimate bankruptcy integrates issues and evaluates clients for arresting declines, emphasizing the appliance of evolutionary and ecological rules in gentle of projected tendencies. all through, Helfman presents examples, explores case experiences, and synthesizes on hand info from a vast taxonomic, habitat, and geographic range. Fish Conservation summarizes the present nation of information in regards to the degradation and recovery of variety between fishes and the productiveness of fishery assets, declaring parts the place development has been made and the place extra should be performed. suggestions specialise in the applying of ecological wisdom to fixing sensible difficulties, spotting that potent biodiversity conservation is determined by assembly human wishes via administration that specializes in long-term sustainability and an atmosphere viewpoint. (20071201)

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Get Scaling fisheries : the science of measuring the effects of PDF

By Tim D. Smith

ISBN-10: 052139032X

ISBN-13: 9780521390323

Because the industrialization of fishing, fisheries scientists were topic to extreme fiscal and political pressures, that have affected the best way the technology has built. The origins and results of those pressures are traced during this e-book to issues approximately picking out the motives of fluctuations in fish and whale catches, and to resistance to legislation of fishing job whilst populations are depleted. the improvement of partial theories of fish inhabitants dynamics are defined utilizing examples of either nationwide and foreign fisheries. The explanations of the problems encountered in generalizing those theories are tested, surroundings the level for the obstacle of scope of those reports that also impacts the shape and volume of fisheries examine this day.

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Im Reich der Träume: Die rätselhafte Welt des Schlafes by David K. Randall, Martina Wiese PDF

By David K. Randall, Martina Wiese

ISBN-10: 3642546285

ISBN-13: 9783642546280

ISBN-10: 3642546293

ISBN-13: 9783642546297

Der New York Times-Bestseller über die erstaunlichen Erkenntnisse der Schlafforschung

Jede Nacht widmen wir ihm etliche Stunden: Dennoch gibt der Schlaf uns allen – Schläfern wie Wissenschaftlern gleichermaßen – verblüffend viele Rätsel auf. Obwohl wir nahezu ein Drittel unseres Lebens schlafend verbringen, wissen wir nicht wirklich, inwiefern dies bedeutsam für uns ist. Warum müssen wir überhaupt schlafen? Warum bedroht Schlafmangel unsere Gesundheit, warum ist Schlafentzug Folter? used to be geschieht mit uns, wenn wir träumen? Lernen wir im Schlaf? Und was once hat es mit dem Schlafwandeln auf sich?

Kaum etwas beeinflusst unser Leben so sehr wie die Qualität unseres Schlafs. Schlafstörungen scheinen in Zusammenhang mit Diabetes, Bluthochdruck, Schlaganfällen und Demenz zu stehen. Und in unseren sozialen Beziehungen birgt der Schlafplatz eine Menge Zündstoff: Sollten Eltern ihr Bett mit ihrem Säugling teilen? used to be tun, wenn der andere schnarcht? Ist eine Ehe zum Scheitern verurteilt, wenn die associate in getrennten Betten schlafen?

Der Wissenschaftsjournalist David Randall gewährt uns vielfältige Einblicke in die Forschungsarbeiten, die jene nächtlichen Stunden zu erhellen versuchen. Auf einer Entdeckungsreise, die von Kriegsschauplätzen bis ins Kinderzimmer führt, offenbart Im Reich der Träume, dass Schlafen nicht im Entferntesten so banal ist, wie es uns erscheinen magazine, wenn wir abends das Licht ausmachen.

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The Evolution of Primary Sexual Characters in Animals by Janet Leonard, Alex Cordoba-Aguilar PDF

By Janet Leonard, Alex Cordoba-Aguilar

ISBN-10: 0195325559

ISBN-13: 9780195325553

Basic sexual qualities, these buildings and procedures without delay fascinated by copy, are probably the most diversified, really expert, and weird within the animal country. in addition, reproductive features are frequently species-specific, suggesting that they advanced very quickly. This variety, lengthy the province of taxonomists, has lately attracted broader curiosity from evolutionary biologists, in particular these attracted to sexual choice and the evolution of reproductive strategies.

Primary sexual characters have been lengthy assumed to be the fabricated from traditional choice, completely. a up to date replacement means that sexual choice explains a lot of the variety of "primary" sexual characters. a 3rd method of the evolution of reproductive interactions after copulation or insemination has been to think about the method certainly one of sexual clash. that's, the reproductive strategies of a species could mirror, as does the mating procedure, evolution performing on men and on women, yet in several directions.

In this quantity, authors discover a wide selection of basic sexual characters and selective pressures that experience formed them, from traditional choice for offspring survival to species-isolating mechanisms, sperm festival, cryptic lady selection and sexual hands races. Exploring various reproductive diversifications from a theoretical and functional viewpoint, The Evolution of fundamental Sexual Characters will supply an extraordinary evaluation of sexual variety in lots of taxa and an creation to the problems in sexual choice which are altering our view of sexual processes.

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Birds of Belize - download pdf or read online

By H. Lee Jones, Dana Gardner

ISBN-10: 0292701640

ISBN-13: 9780292701649

ISBN-10: 0292740662

ISBN-13: 9780292740662

Определитель дает возможность идентификации всех fifty four видов птиц Белиза, известных на настоящее время. Виды сгруппированы по семействам, каждое их которых охарактеризовано по уникальным свойствам и особенностям поведения. Описание вида содержит всю информацию, необходимую для идентификации в природе: научные и обычные названия, особенности оперения, характеристики звуков и сигналов, местообитания, распространение и статус охраны. Полноцветные иллюстрации, выполненные известной художницей-анималистом Данной Гарднер, представляют самцов и самок, молодых и взрослых, типичные и альтернативные варианты окраски, способствуют визуальной идентификации, в то время как 234 карты показывают распространение и сезонность. Книга снабжена детальной библиографией.
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