Evolutionary biology

Xem 1-20 trên 99 kết quả Evolutionary biology
  • Whereas the mechanical performance of plant organs has often been discussed in evolutionary biology [1,2], tree biomechanics has rarely been considered in the context of functional ecology. Functional ecology aims at understanding the functions of organisms that result in fluxes of biomass or energy within an ecosystem, e.g., a forest. This discipline studies the processes controlling these fluxes, at either the scale of an individual, community, or ecosystem, with their response to natural or anthropic environmental variations....

    pdf313p 951628473 07-05-2012 64 24   Download

  • "It's the animal in us," we often hear when we've been bad. But why not when we're good? Primates and Philosophers tackles this question by exploring the biological foundations of one of humanity's most valued traits: morality. In this provocative book, primatologist Frans de Waal argues that modern-day evolutionary biology takes far too dim a view of the natural world, emphasizing our "selfish" genes. Science has thus exacerbated our reciprocal habits of blaming nature when we act badly and labeling the good things we do as "humane.

    pdf231p ktct_1669 08-05-2012 73 11   Download

  • This book follows in the footsteps of two previous efforts—Snakes: Ecology and Evolutionary Biology (1987) and Snakes: Ecology and Behavior (1993)—to provide established and new researchers with a current synopsis of snake ecology. In the preface to each of these earlier works, one of us (R. A. S.) admitted that he had erred in assuming that another “Biology of the Serpentes” book was not worth tackling. And after the fi rst two books, we thought that perhaps yet another book was not needed—we were wrong again.

    pdf381p xunu1311 02-11-2012 29 6   Download

  • In this edited volume, global experts in ecology and evolutionary biology explore how theories in ecology elucidate the processes of invasion, while also examining how specific invasions inform ecological theory. This reciprocal benefit is highlighted in a number of scales of organization: population, community and biogeographic. The text describes example invaders in all major groups of organisms and from a number of regions around the globe.

    pdf523p camchuong_1 11-12-2012 28 3   Download

  • Evolutionary biology and ecology share the goals of describing variation in natural systems and discovering its functional basis. Within this common framework, evolutionary biologists emphasize historical and lineage-dependent processes and hence often incorporate phylogenetic reconstructions and genetic models in their analyses. Ecologists, while cognizant of historical processes, tend to explain variation in terms of the contemporary effects of biotic and abiotic environmental factors.

    pdf0p phoebe75 01-02-2013 27 3   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Minireview cung cấp cho các bạn kiến thức về ngành y đề tài: Yeasts as models in evolutionary biology...

    pdf0p thulanh21 12-11-2011 19 1   Download

  • Immediately after the first drafts of the human genome sequence were reported almost a decade ago, the importance of genomics and functional genomics studies became well recognized across the broad disciplines of biological sciences research.

    pdf346p orchid_1 17-09-2012 58 24   Download

  • The Penguin Dictionary of Biology defines some 6,000 terms relating to this rich, complex, and constantly expanding subject?from amino acids, bacteria, and the cell cycle to X-ray diffraction, Ychromosomes, and zygotes. Long established as the definitive single-volume source, the dictionary has now been extensively updated for its eleventh edition.

    pdf605p boy_them_yeu 03-07-2013 34 8   Download

  • Physicists pretend not only to know everything, but also to know everything bet- ter. This applies in particular to computational statistical physicists like US. Thus many of our colleagues have applied their computer simulation techniques to fields outside of physics, and have published sometimes in biological, economic or sociological journals, and publication flow in the opposite direction has also started.

    pdf287p banhkem0908 24-11-2012 34 6   Download

  • had great diffi culty fi nding a title for this book. For long, the working title was Genetic Variation and Extinction. However, this title implies a causal and simple relationship between genetic variation and extinction. I do think that the study of genetic variation is extremely important for conservation biology but, as will become apparent while reading the text, I am not as sure that this relationship is as simple and straightforward as I thought when I began this voyage.

    pdf200p coeus75 29-01-2013 21 2   Download

  • Chapter 22 - Descent with modification: A Darwinian view of life. This chapter presents the following content: Western culture resisted evolutionary views of life, theories of geologic gradualism helped clear the path for evolutionary biologists, lamarck placed fossils in an evolutionary context.

    ppt68p nomoney11 04-05-2017 3 2   Download

  • Chapter 23 - The evolution of populations. This chapter presents the following content: The modern evolutionary synthesis integrated Darwinian selection and Mendelian inheritance, a population’s gene pool is defined by its allele frequencies, the Hardy-Weinberg theorem describes a nonevolving population.

    ppt97p nomoney11 04-05-2017 5 2   Download

  • Chapter 24 - The origin of species. This chapter presents the following content: The biological species concept emphasizes reproductive isolation, prezygotic and postzygotic barriers isolate the gene pools of biological species, the biological species concept has some major limitations, evolutionary biologists have proposed several alternative concepts of species.

    ppt83p nomoney11 04-05-2017 10 2   Download

  • Chapter 26 - Early earth and the origin of life. This chapter presents the following content: Life on Earth originated between 3.5 and 4.0 billion years ago, prokaryotes dominated evolutionary history from 3.5 to 2.0 billion years ago, Oxygen began accumulating in the atmosphere about 2.7 billion years ago,...

    ppt65p nomoney11 04-05-2017 5 2   Download

  • Chapter 21 - Descent with modification: A Darwinian view of life. This chapter describe the contributions to evolutionary theory made by Linnaeus, Cuvier, Lyell, Lamarck, Malthus, and Wallace; describe Lamarck’s theories, and explain why they have been rejected; explain what Darwin meant by “descent with modification”; explain Darwin’s observations and inferences; explain why an individual organism cannot evolve; describe evidence for evolution by natural selection.

    ppt41p tangtuy02 08-03-2016 13 1   Download

  • Chapter 24 introduction to genomics: DNA sequencing on a genomic scale. We will begin this chapter with a discussion of positional cloning, a technique for identifying a gene responsible for a given trait, and see how much easier this process is when the sequence of the organism’s genome is known. Then we will examine the techniques scientists use to sequence DNA on a massive scale. We will also discuss some of the lessons we have learned from the sequences of genomes, especially the evolutionary insights to be gained by comparing the genomic sequences of different organisms.

    ppt37p tangtuy05 30-03-2016 6 1   Download

  • This chapter students will be able to: Recognize that natural selection is the correct mechanism for explain evolution; understand the importance of and identify sources of genetic variation; know how to solve various problems associated with Hardy-Weinberg equilibrium; list the five factors, and state an example of each, that affect Hardy-Weinberg equilibrium and understand how each can produce evolutionary changes in a population experiencing any one of the five;...

    ppt54p tangtuy07 02-04-2016 8 1   Download

  • For their controversial new book on the differences between the way men and women think and communicate, Barbara and Allan Pease spent three years traveling around the world, collecting the dramatic findings of new research on the brain, investigating evolutionary biology, analyzing psychologists, studying social changes, and annoying the locals.

    pdf305p coc_xanh 18-01-2013 54 21   Download

  • John H. Vandermeer Ph.D., is a Margaret Davis Collegiate Professor in the Department of Ecology and Evolutionary Biology at the University of Michigan, Ann Arbor. His work has been in tropical agroecosystem ecology, tropical forest ecology, and theoretical ecology. He is the author of over 150 scientific articles and 9 books. Professor Vandermeer was born in 1940 in Chicago, Illinois. He received his BS in zoology from the University of Illinois, Champaign/Urbana, and his masters in zoology from the University of Kansas.

    pdf550p crazy_sms 10-05-2012 76 19   Download

  • This book presents biologically inspired walking machines interacting with their physical environment. It describes how the designs of the morphology and the behavior control of walking machines can benefit from biological studies.

    pdf194p nhatro75 16-07-2012 70 17   Download


Đồng bộ tài khoản