Adaptation and Fitness in Animal Populations

Adaptation and Fitness in Animal Populations PDF Author: Julius van der Werf
Publisher: Springer Science & Business Media
ISBN: 1402090056
Category : Science
Languages : en
Pages : 256

Get Book Here

Book Description
Fitness and adaptation are fundamental characteristics of plant and animal species, enabling them to survive in their environment and to adapt to the inevitable changes in this environment. This is true for both the genetic resources of natural ecosystems as well as those used in agricultural production. Extensive genetic variation exists between varieties/breeds in a species and amongst individuals within breeds. This variation has developed over very long periods of time. A major ongoing challenge is how to best utilize this variation to meet short-term demands whilst also conserving it for longer-term possible use. Many animal breeding programs have led to increased performance for production traits but this has often been accompanied by reduced fitness. In addition, the global use of genetic resources prompts the question whether introduced genotypes are adapted to local production systems. Understanding the genetic nature of fitness and adaptation will enable us to better manage genetic resources allowing us to make efficient and sustainable decisions for the improvement or breeding of these resources. This book had an ambitious goal in bringing together a sample of the world’s leading scientists in animal breeding and evolutionary genetics to exchange knowledge to advance our understanding of these vital issues.

Adaptation and Fitness in Animal Populations

Adaptation and Fitness in Animal Populations PDF Author: Julius van der Werf
Publisher: Springer Science & Business Media
ISBN: 1402090056
Category : Science
Languages : en
Pages : 256

Get Book Here

Book Description
Fitness and adaptation are fundamental characteristics of plant and animal species, enabling them to survive in their environment and to adapt to the inevitable changes in this environment. This is true for both the genetic resources of natural ecosystems as well as those used in agricultural production. Extensive genetic variation exists between varieties/breeds in a species and amongst individuals within breeds. This variation has developed over very long periods of time. A major ongoing challenge is how to best utilize this variation to meet short-term demands whilst also conserving it for longer-term possible use. Many animal breeding programs have led to increased performance for production traits but this has often been accompanied by reduced fitness. In addition, the global use of genetic resources prompts the question whether introduced genotypes are adapted to local production systems. Understanding the genetic nature of fitness and adaptation will enable us to better manage genetic resources allowing us to make efficient and sustainable decisions for the improvement or breeding of these resources. This book had an ambitious goal in bringing together a sample of the world’s leading scientists in animal breeding and evolutionary genetics to exchange knowledge to advance our understanding of these vital issues.

Adaptation and Fitness in Animal Populations

Adaptation and Fitness in Animal Populations PDF Author: Julius van der Werf
Publisher: Springer
ISBN: 9789048180509
Category : Science
Languages : en
Pages : 0

Get Book Here

Book Description
Fitness and adaptation are fundamental characteristics of plant and animal species, enabling them to survive in their environment and to adapt to the inevitable changes in this environment. This is true for both the genetic resources of natural ecosystems as well as those used in agricultural production. Extensive genetic variation exists between varieties/breeds in a species and amongst individuals within breeds. This variation has developed over very long periods of time. A major ongoing challenge is how to best utilize this variation to meet short-term demands whilst also conserving it for longer-term possible use. Many animal breeding programs have led to increased performance for production traits but this has often been accompanied by reduced fitness. In addition, the global use of genetic resources prompts the question whether introduced genotypes are adapted to local production systems. Understanding the genetic nature of fitness and adaptation will enable us to better manage genetic resources allowing us to make efficient and sustainable decisions for the improvement or breeding of these resources. This book had an ambitious goal in bringing together a sample of the world’s leading scientists in animal breeding and evolutionary genetics to exchange knowledge to advance our understanding of these vital issues.

Darwin Comes to Town

Darwin Comes to Town PDF Author: Menno Schilthuizen
Publisher: Picador
ISBN: 1250127831
Category : Science
Languages : en
Pages : 305

Get Book Here

Book Description
*Carrion crows in the Japanese city of Sendai have learned to use passing traffic to crack nuts. *Lizards in Puerto Rico are evolving feet that better grip surfaces like concrete. *Europe’s urban blackbirds sing at a higher pitch than their rural cousins, to be heardover the din of traffic. How is this happening? Menno Schilthuizen is one of a growing number of “urban ecologists” studying how our manmade environments are accelerating and changing the evolution of the animals and plants around us. In Darwin Comes to Town, he takes us around the world for an up-close look at just how stunningly flexible and swift-moving natural selection can be. With human populations growing, we’re having an increasing impact on global ecosystems, and nowhere do these impacts overlap as much as they do in cities. The urban environment is about as extreme as it gets, and the wild animals and plants that live side-by-side with us need to adapt to a whole suite of challenging conditions: they must manage in the city’s hotter climate (the “urban heat island”); they need to be able to live either in the semidesert of the tall, rocky, and cavernous structures we call buildings or in the pocket-like oases of city parks (which pose their own dangers, including smog and free-rangingdogs and cats); traffic causes continuous noise, a mist of fine dust particles, and barriers to movement for any animal that cannot fly or burrow; food sources are mainly human-derived. And yet, as Schilthuizen shows, the wildlife sharing these spaces with us is not just surviving, but evolving ways of thriving. Darwin Comes toTown draws on eye-popping examples of adaptation to share a stunning vision of urban evolution in which humans and wildlife co-exist in a unique harmony. It reveals that evolution can happen far more rapidly than Darwin dreamed, while providing a glimmer of hope that our race toward over population might not take the rest of nature down with us.

Outrageous Animal Adaptations

Outrageous Animal Adaptations PDF Author: Michael J. Rosen
Publisher: Twenty-First Century Books (Tm)
ISBN: 1512429996
Category : Juvenile Nonfiction
Languages : en
Pages : 100

Get Book Here

Book Description
A fish that walks on land, a frog that makes its own sunscreen, and an insect that can become invisible? These are just a few examples of how Earth's creatures have evolved some outrageous features and tricks to ensure survival.

Adaptation and Natural Selection

Adaptation and Natural Selection PDF Author: George Christopher Williams
Publisher: Princeton University Press
ISBN: 0691185506
Category : Science
Languages : en
Pages : 335

Get Book Here

Book Description
Biological evolution is a fact—but the many conflicting theories of evolution remain controversial even today. When Adaptation and Natural Selection was first published in 1966, it struck a powerful blow against those who argued for the concept of group selection—the idea that evolution acts to select entire species rather than individuals. Williams’s famous work in favor of simple Darwinism over group selection has become a classic of science literature, valued for its thorough and convincing argument and its relevance to many fields outside of biology. Now with a new foreword by Richard Dawkins, Adaptation and Natural Selection is an essential text for understanding the nature of scientific debate.

The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life

The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life PDF Author: Charles Darwin
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 360

Get Book Here

Book Description


In the Light of Evolution

In the Light of Evolution PDF Author: National Academy of Sciences
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 388

Get Book Here

Book Description
The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.

Animal Adaptations

Animal Adaptations PDF Author: Julie K. Lundgren
Publisher: Britannica Digital Learning
ISBN: 1615357661
Category : Juvenile Nonfiction
Languages : en
Pages : 28

Get Book Here

Book Description
Early readers investigate various animal adaptations.

Primate Adaptation and Evolution

Primate Adaptation and Evolution PDF Author: Bozzano G Luisa
Publisher: Academic Press
ISBN: 1483288501
Category : Social Science
Languages : en
Pages : 507

Get Book Here

Book Description
Primate Adaptation and Evolutionis the only recent text published in this rapidly progressing field. It provides you with an extensive, current survey of the order Primates, both living and fossil. By combining information on primate anatomy, ecology, and behavior with the primate fossil record, this book enables students to study primates from all epochs as a single, viable group. It surveys major primate radiations throughout 65 million years, and provides equal treatment of both living and extinct species.ï Presents a summary of the primate fossilsï Reviews primate evolutionï Provides an introduction to the primate anatomyï Discusses the features that distinguish the living groups of primatesï Summarizes recent work on primate ecology

How Have Animals Evolved and Adapted?

How Have Animals Evolved and Adapted? PDF Author: Jennifer Swanson
Publisher: The Rosen Publishing Group, Inc
ISBN: 1622759974
Category : Juvenile Nonfiction
Languages : en
Pages : 34

Get Book Here

Book Description
Scientists believe that all forms of life developed from earlier types of living things through a process called evolution. In this intriguing and engaging narrative, readers learn that living organisms must adapt to survive as their surroundings change. By studying the developmental history of everything from single cell organisms to complex vertebrates, readers are presented with the evidence for evolution provided by the fossil record. Charles Darwin and the process of natural selection are discussed. In addition, the work of Gregor Mendel opens a window onto genetics and gets readers thinking about how genes work together to produce specific traits.