Special issue: Late Quaternary Tropical Ecosystem Dynamics

Introduction to the Special Issue: Ecosystem Services

Although geographers have always been eclectic in their approach, the need for broad perspectives and partnerships with other disciplines has never been as important as it is in confronting contemporary environmental problems. This special issue explores a particularly active area of debate concerning the notion of ecosystem services. It looks at new dialogues that are now developing with econo...

Special Issue

Introduction to Macroeconomic Dynamics Special Issue: Inequality.

This special issue features inequality. This is a subject that rightly draws immediate attention from both the profession and the popular press. The numbers themselves are intrinsically interesting, if not disturbing. There is, on the one hand, great variety in the distribution of earnings and an enormously right-skewed distribution of wealth. On the other hand, there is absolute and relative p...

Ismm05 Special Issue : on the Dynamics

We investigate the new definition of the ordered dynamics proposed in [4]. We show that this definition leads to several properties. In particular we give necessary and sufficient conditions which indicate when a transformation preserves the dynamics of the regional maxima. We also establish a link between the dynamics, minimum spanning trees, and component trees.

Vegetation ecotone dynamics in Southwest Alaska during the Late Quaternary

To examine Late Quaternary vegetation change across the modern vegetation gradient from continuous boreal forest (central Alaska) to Betula shrub tundra (Bristol Bay region), pollen records from Idavain and Snipe Lakes are described and compared to those of four other sites in southwest Alaska. Major features of the vegetation history at Idavain Lake include herb-dominated tundra (ca. 14}12 ka ...