Biological dispersal

The propagation term used in biology, especially in theoretical biology and ecology, all qualitative and quantitative changes in the spatial distribution of biological entities. Examples include the spread of species populations and P alleles.

The non-directional at the population level form of propagation, which is found in many biological systems, biologists often write something simplistic one-dimensional case in the form:.

Where P is a function of time and space and the added to the classical diffusion equation expression aP quantifies the local emergence of type - individuals or the emergence of alleles by mutation.

In particular, the spread of species also investigated the biogeography. This is determined by various environmental factors and belongs to the realized ecological niche of Art This leads to a succession ( succession of companies in more or less long periods of time ). This is documented by the chorology.

The Geobotany examined vegetation dynamics: Plants have developed a variety of propagation mechanisms that allow them to segregate to distribute their seeds in part over large distances ( seed dispersal ) or viable plant parts ( Vegetative propagation ).

The Geozoologie deals with the animal world. A special form of propagation in animals is the animal migration.

The penetration of a kind in a non- ancestral ecosystem is referred to in the invasion biology as a biological invasion.

The historical evolution of the propagation investigate the paleobotany and, in historical periods in the context of human settlement history, the Palaeoethnobotany.

In terms of a settlement of a new Ökotops the spread of biogenic diseases is to understand how they examined the epidemiology.