Böcker av Mark Vellend

How the science of evolution explains how everything came to be, from bacteria and blue whales to cell phones, cities, and artificial intelligenceEverything Evolves reveals how evolutionary dynamics shape the world as we know it and how we are harnessing the principles of evolution in pursuit of many goals, such as increasing the global food supply and creating artificial intelligence capable of evolving its own solutions to thorny problems.Taking readers on an astonishing journey, Mark Vellend describes how all observable phenomena in the universe can be understood through two sciences. The first is physics. The second is the science of evolvable systems. Vellend shows how this Second Science unifies biology and culture and how evolution gives rise to everything from viruses and giraffes to nation-states, technology, and us. He discusses how the idea of evolution had precedents in areas such as language and economics long before it was made famous by Darwin, and how only by freeing ourselves of the notion that the study of evolution must start with biology can we appreciate the true breadth of evolutionary processes.A sweeping tour of the natural and social sciences, Everything Evolves is an essential introduction to one of the two key pillars to the scientific enterprise and an indispensable guide to understanding some of the most difficult challenges of the Anthropocene.

A plethora of different theories, models, and concepts make up the field of community ecology. Amid this vast body of work, is it possible to build one general theory of ecological communities? What other scientific areas might serve as a guiding framework? As it turns out, the core focus of community ecology-understanding patterns of diversity and composition of biological variants across space and time-is shared by evolutionary biology and its very coherent conceptual framework, population genetics theory. The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole.Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation. These are analogues of the four central processes in population genetics theory-selection within species, drift, gene flow, and mutation-and together they subsume almost all of the many dozens of more specific models built to describe the dynamics of communities of interacting species. The result is a theory that allows the effects of many low-level processes, such as competition, facilitation, predation, disturbance, stress, succession, colonization, and local extinction to be understood as the underpinnings of high-level processes with widely applicable consequences for ecological communities.Reframing the numerous existing ideas in community ecology, The Theory of Ecological Communities provides a new way for thinking about biological composition and diversity.