Coexistence In Ecology

As a novel endeavour in ecological science, this book focuses on amajor issue in organismal life on Earth:species coexistence. Thebook crosses the usual disciplinary boundaries betweenpalaeobiology, ecology and evolutionary biology and provides atimely overview of the patterns and processes of species diversityand coexistence on a range of spatio-temporal scales. In thisunique synthesis, the author offers a critical and penetratingexamination of the concepts and models of coexistence and communitystructure, thus making a valuable contribution to the field ofcommunity ecology. There is an emphasis on clarity andaccessibility without sacrificing scientific rigour, making thisbook suitable for both advanced students and individual researchersin ecology, palaeobiology and environmental and evolutionarybiology. Comprehensive and contemporary synthesis. Pulls together the aggregate influence of evolution and ecologyon patterns in communities. Balanced mix of theory and empirical work. Clearly structured chapters with short introduction andsummary.

A comprehensive framework for understanding species coexistence Coexistence is the central concept in community ecology, but an understanding of this concept requires that we study the actual mechanisms of species interactions. Coexistence in Ecology examines the major features of these mechanisms for species that coexist at different positions in complex food webs, and derives empirical tests from model predictions. Exploring the various challenges species face, Mark McPeek systematically builds a model food web, beginning with an ecosystem devoid of life and then adding one species at a time. With the introduction of each new species, he evaluates the properties it must possess to invade a community and quantifies the changes in the abundances of other species that result from a successful invasion. McPeek continues this process until he achieves a multitrophic level food web with many species coexisting at each trophic level, from omnivores, mutualists, and pathogens to herbivores, carnivores, and basic plants. He then describes the observational and experimental empirical studies that can test the theoretical predictions resulting from the model analyses. Synthesizing decades of theoretical research in community ecology, Coexistence in Ecology offers new perspectives on how to develop an empirical program of study rooted in the natural histories of species and the mechanisms by which they actually interact with one another.

This book is about tropical biology in action- how biologists grapple with the ecology and evolution of the great species diversity in tropical rainforests and coral reefs. Tropical rainforests are home to 50% of all the plant and animal species on earth, though they cover only about 2% of the planet. Coral reefs hold 25% of the world's marine diversity, though they represent only 0.1 % of the world's surface. The increase in species richness from the poles to the tropics has remained enigmatic to naturalists for more than 200 years. How have so many species evolved in the tropics? How can so many species coexist there? At a time when rainforests and coral reefs are shrinking, when the earth is facing what has been called the sixth mass extinction, understanding the evolutionary ecology of the tropics is everyone's business. Despite the fundamental importance of the tropics to all of life on earth, tropical biology has evolved relatively slowly and with difficulties - economic, political, and environmental. This book is also about tropical science in context, situated in the complex socio-political history, and the rich rainforests and coral reefs of Panama. There are no other books on the history of tropical ecology and evolution or on the Smithsonian Tropical Research Institute. Thus situated in historical context, Jan Sapp's aim is to understand how naturalists have studied and conceptualized the great biological diversity and entangled ecology of tropics. This book has potential to be used in tropical biology classes, ecology courses, evolutionary ecology and it could also be useful in classes on the history of biology.

The question "Why are there so many species?" has puzzled ecologist for a long time. Initially, an academic question, it has gained practical interest by the recent awareness of global biodiversity loss. Species diversity in local ecosystems has always been discussed in relation to the problem of competi tive exclusion and the apparent contradiction between the competitive exclu sion principle and the overwhelming richness of species found in nature. Competition as a mechanism structuring ecological communities has never been uncontroversial. Not only its importance but even its existence have been debated. On the one extreme, some ecologists have taken competi tion for granted and have used it as an explanation by default if the distribu tion of a species was more restricted than could be explained by physiology and dispersal history. For decades, competition has been a core mechanism behind popular concepts like ecological niche, succession, limiting similarity, and character displacement, among others. For some, competition has almost become synonymous with the Darwinian "struggle for existence", although simple plausibility should tell us that organisms have to struggle against much more than competitors, e.g. predators, parasites, pathogens, and envi ronmental harshness.

Provides a comprehensive review of the role of species interactions in the process of plant community assembly.

Timothy Morton argues that ecological awareness in the present Anthropocene era takes the form of a strange loop or Möbius strip, twisted to have only one side. Deckard travels this oedipal path in Blade Runner (1982) when he learns that he might be the enemy he has been ordered to pursue. Ecological awareness takes this shape because ecological phenomena have a loop form that is also fundamental to the structure of how things are. The logistics of agricultural society resulted in global warming and hardwired dangerous ideas about life-forms into the human mind. Dark ecology puts us in an uncanny position of radical self-knowledge, illuminating our place in the biosphere and our belonging to a species in a sense that is far less obvious than we like to think. Morton explores the logical foundations of the ecological crisis, which is suffused with the melancholy and negativity of coexistence yet evolving, as we explore its loop form, into something playful, anarchic, and comedic. His work is a skilled fusion of humanities and scientific scholarship, incorporating the theories and findings of philosophy, anthropology, literature, ecology, biology, and physics. Morton hopes to reestablish our ties to nonhuman beings and to help us rediscover the playfulness and joy that can brighten the dark, strange loop we traverse.

Like never before in history, humans are becoming increasingly interconnected with one another and with the other inhabitants and habitats of Earth. There are numerous signs of planetary interrelations, from social media and international trade to genetic engineering and global climate change. The scientific study of interrelations between organisms and environments, Ecology, is uniquely capable of addressing the complex challenges that characterize our era of planetary coexistence. Whole Earth Thinking and Planetary Coexistence focuses on newly emerging approaches to ecology that cross the disciplinary boundaries of sciences and humanities with the aim of responding to the challenges facing the current era of planetary interconnectedness. It introduces concepts that draw out a creative contrast between religious and secular approaches to the integration of sciences and humanities, with religious approaches represented by the "geologian" Thomas Berry and the whole Earth thinking of Stephanie Kaza and Gary Snyder, and the more secular approaches represented by the "geophilosophy" of poststructuralist theorists Gilles Deleuze and Félix Guattari. This book will introduce concepts engaging with the ecological challenges of planetary coexistence to students and professionals in fields of environmental studies, philosophy and religious studies.

"This volume provides a series of essays on open questions in ecology with the overarching goal being to outline to the most important, most interesting or most fundamental problems in ecology that need to be addressed. The contributions span ecological subfields, from behavioral ecology and population ecology to disease ecology and conservation and range in tone from the technical to more personal meditations on the state of the field. Many of the chapters start or end in moments of genuine curiosity, like one which takes up the question of why the world is green or another which asks what might come of a thought experiment in which we "turn-off" evolution entirely"--