The Bulgarian Biodiversity Portal is a part of the global information exchange network established by the Convention on Biodiversity (Clearing House Mechanism - CHM). Its purpose is to offer directly or provide links to the information on biodiversity you need.
The period during which land is left to recover its productivity (reduced by cropping) mainly through accumulation of water, nutrients, attrition of pathogens(pathogen), or a combination of all three. During this period, the land may be bare or covered by natural or planted vegetation. The term may be applied to the land itself or to the crop growing on it.
farm animal genetic resources (AnGR)
Those animal species that are used, or may be used, for the production of food and agriculture, and the populations(population) within each of them. These populations within each species can be classified as wild and feral populations, landrace/s and primary populations, standardized breeds(breed), selected lines(line), and any conserved genetic material.
Rights arising from the past, present and future contributions of farmers in conserving, improving and making available plant or animal genetic resources(genetic resource), particularly those in centers of origin.
- Organisms of the animal kingdom.
- All of the animals found in a given area.
- A book listing, with descriptions and illustrations, all animals that live in a given area.
Rate at which females produce offspring.
A domesticated species that has adapted to existence in the wild state but remains distinct from other wild species. Examples are the wild horses and burros of the West and the wild goats and pigs of Hawaii.
As defined by the Convention on Biological Diversity (http://www.biodiv.org/ ), its role is to provide under the guidance of the COP (http://www.biodiv.org/convention/cops.asp ) financial resources to help developing countries implement the Convention; the GEF (http://www.gefweb.org/ ) is operating the mechanism on an interim basis.
- The genetic contribution to future generations; the average number of descendants.
- The expected contribution of an allele, genotype, or phenotype to future generations. The fitness of genes(gene) and organisms is always relative to the other genes and organisms that are present in the same population. Usually it is measured as the average number of offspring produced by individuals with a certain genotype, relative to the number produced by other genotypes.
Popular, charismatic species that serve as symbols and rallying points to stimulate conservation awareness and action.
- Organisms of the plant kingdom.
- All of the plants found in a given area.
- A book listing, with descriptions and illustrations, all plants that grow in a given area.
An abstract representation of the feeding relationships of organisms within a community or an ecosystem.
forest resource accounting (FRA)
Methodologies for forest resource accounting, aimed at encouraging improved forest information management systems for conservation and sustainable utilisation.
The loss of genetic diversity when a new colony is formed (e.g. on an oceanic island) by a very small number of individuals from a larger population elsewhere.
The breaking up of extensive landscape features into disjunct, isolated, or semi-isolated patches as a result of land-use changes.