Ecological niche

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  • This book is an introduction to the exciting new field of ecological genomics, for use in MSc courses and by those beginning their PhD studies. When we became involved in a national research programme on ecological genomics, or ecogenomics as it became known, we realized that information on this newly emerging subject needed to be brought together. In order to start up a research programme in such a new discipline, not only the students, but also we as teachers, had to get to grips with the subject.

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  • Our goal in writing this book was to describe why weeds occur where they do. We have made no attempt to discuss their management and control: there are excellent texts available for that. Rather, we think that students should understand how and why weeds fit into their environment. This text presents ecological principles as they relate to weeds. Ecology is central to our understanding of how and why weeds invade and yet there are few books that make this connection. That is the niche we hope to fill.

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  • This chapter distinguish between the following sets of terms: competition, predation, herbivory, symbiosis; fundamental and realized niche; cryptic and aposematic coloration; batesian mimicry and Müllerian mimicry; parasitism, mutualism, and commensalism; endoparasites and ectoparasites; species richness and relative abundance; food chain and food web; primary and secondary succession;...

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  • CHAPTER ONE Introduction arguably ranks as the single most important episode in the development of Earth’s marine biota. Diverse benthic communities with complex tiering, trophic webs, and niche partitioning, together with an elaborate pelagic realm.

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  • THE CAMBRIAN RADIATION, which commenced around 550 million years ago, arguably ranks as the single most important episode in the development of Earth’s marine biota. Diverse benthic communities with complex tiering, trophic webs, and niche partitioning, together with an elaborate pelagic realm, were established soon after the beginning of the Cambrian period. This key event in the history of life changed the marine biosphere and its associated sediments forever.

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  • Since the first production of tools at the beginning of human presence on Earth, human evolution is linked to the invention of new tools, usually combined with new environmental adaptations. The symbiosis of man with tools and environments represents one of the main factors in human evolutionary processes. It is evident how this coupling is based on the biophysics of our bodies and the development of the social memory system called culture.

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  • record of Australia is too patchy for paleontologists to say whether there were any placental mammals in Australia at this time. Abundant Australian fossils date back to about 25 million years ago, at which point all the mammals in Austrlia were marsupials. They evolved into a spectacular range of forms, including kan- garoos and koalas. It was not until 15 million years ago that Australia moved close enough to Asia to allow placental mammals—rats and bats—to begin to colonize the continent.

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  • Chapter 54 - Community ecology. This chapter distinguish between the following sets of terms: competition, predation, herbivory, symbiosis; fundamental and realized niche; cryptic and aposematic coloration; batesian mimicry and Müllerian mimicry; parasitism, mutualism, and commensalism; endoparasites and ectoparasites; species richness and relative abundance; food chain and food web; primary and secondary succession;....

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  • Bacteria that associate with plants are diverse in their ability to affect plant health, their genotypic and phenotypic characteristics, and their phylogeny. These bacteria are typically members of complex microbial communities, with only a few establishing pure clonal populations within a plant.

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  • The SFI market was born in discussions at the Santa Fe Institute in the late 1980’s and early 1990’s. It originated as a desire of Brian Arthur and John Holland to build a financial market with an ecology of trading strategies. Successful strategies would persist and replicate, and weak strategies would go away, creating potential niches for the entry of new strategies. The market was to be a continually coevolving soup of strategies. At the foundation of this was a desire to not preload much into the system, and to let evolution do most of the work.

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