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Individuals die, populations disappear, and species become extinct. That is one view of the world. But another view of the world concentrates not so much on presence or absence as upon the numbers of organisms and the de...

Materias / palabras clave: Index (typography); Pollution; Work (physics); Environmental science; sort; Ecology; Water pollution; Aquatic ecosystem; Environmental resource management; Water resource management; Computer science; Engineering

(Uploaded by Plazi for the IPBES Invasive Alien Species Assessment) Our Human Planet summarizes the findings of the four working groups and serves as a reference guide to the four volumes in the Millennium Ecosystem Asse...

Contents: Preface. Introduction. Part I: The Environment To Be Perceived.The Animal And The Environment. Medium, Substances, Surfaces. The Meaningful Environment. Part II: The Information For Visual Perception.The Relati...

Materias / palabras clave: Natural capital; Biosphere; Ecosystem services; Biome; Natural resource economics; Value (mathematics); Ecosystem; Business; Economics; Environmental science; Agricultural economics; Ecology

Ecological changes in the phenology and distribution of plants and animals are occurring in all well-studied marine, freshwater, and terrestrial groups. These observed changes are heavily biased in the directions predict...

This paper considers the relation between the exploration of new possibilities and the exploitation of old certainties in organizational learning. It examines some complications in allocating resources between the two, p...

This chapter aims to develop one of perhaps multiple specifications of embeddedness, a concept that has been used to refer broadly to the contingent nature of economic action with respect to cognition, social structure, ...

From headwaters to mouth, the physical variables within a river system present a continuous gradient of physical conditions. This gradient should elicit a series of responses within the constituent populations resulting ...

Se estudio la ecología trófica y uso del microhábitat de Dendrobates auratus y Oophaga pumilio en un área de simpatría entre las dos especies ubicada en la Estación Biológica La Selva, Costa Rica. En este sitio am...

Summary 1. Here, I present a new, multifunctional phylogenetics package, phytools, for the R statistical computing environment. 2. The focus of the package is on methods for phylogenetic comparative biology; however, it ...

This note summarizes developments of the genepop software since its first description in 1995, and in particular those new to version 4.0: an extended input format, several estimators of neighbourhood size under isolatio...

We present here a new version of the Arlequin program available under three different forms: a Windows graphical version (Winarl35), a console version of Arlequin (arlecore), and a specific console version to compute sum...