richness
31Pamela C. Rasmussen — Born 1959 Nationality United States …
32Medienreichhaltigkeitstheorie — Die Medienreichhaltigkeitstheorie (auch engl.: Media Richness Theory) ist eine Kommunikationstheorie, die Anforderungen an Kommunikationsmedien erklärt. Sie geht zurück auf Arbeiten von Robert H. Lengel und Richard L. Daft aus den 1980er Jahren.… …
33biogeographic region — Introduction area of animal and plant distribution having similar or shared characteristics throughout. It is a matter of general experience that the plants and animals of the land and inland waters differ to a greater or lesser… …
34Biodiversity hotspot — A biodiversity hotspot is a biogeographic region with a significant reservoir of biodiversity that is threatened with destruction.The concept of biodiversity hotspots was originated by Dr. Norman Myers in two articles in “The Environmentalist”… …
35Abell catalogue — The Abell catalog of rich clusters of galaxies is an all sky catalog of 4,073 rich galaxy clusters of nominal redshift z = 0.2. This catalog supplements a revision of George Ogden Abell’s original “Northern Survey” of 1958, which had only 2,712… …
36History of mining in Sardinia — Mining and the processing of minerals date back to ancient times in Sardinia.Ancient traders and conquerors, attracted by the astonishing underground riches, were drawn to the island s coast. Evidence of ancient metal processing is given in the… …
37Lotic ecosystems — are the ecosystems of rivers, streams and springs. Included in these environments are the biotic interactions (amongst plants, animals and micro organisms) together with the abiotic interactions (physical and chemical). [Angelier (2003)] Lotic… …
38Effective evolutionary time — The hypothesis of effective evolutionary timeK. Rohde: Latitudinal gradients in species diversity: the search for the primary cause, Oikos, 65, 514 527,1992.] attempts to explain gradients, in particular latitudinal gradients, in species… …
39Species distribution — A species range maps represents the geographical region where individuals of a species can be found. This is a range map of Juniperus communis, the common juniper. Species distribution is the manner in which a biological taxon is spatially… …
40Pedodiversity — can be generally defined as the variation of soil properties (usually characterised by soil classes) within an area. Pedodiversity studies were first started by analyzing soil series–area relationships (Beckett and Bie, 1978). According to Guo et …
