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One of the issues facing biodiversity in areas of industrial agriculture is the loss of heterogeneity, described by the loss of a biotic and abiotic diversity. [1] [3] Since 1966, the Green Revolution enhanced agricultural productivity through technological, economical, and political advancements in an effort to increase food security globally. [14]
A variety of objective means exist to empirically measure biodiversity. Each measure relates to a particular use of the data, and is likely to be associated with the variety of genes. Biodiversity is commonly measured in terms of taxonomic richness of a geographic area over a time interval. In order to calculate biodiversity, species evenness ...
Animal genetic resources for food and agriculture (AnGR), also known as farm animal genetic resources or livestock biodiversity, are genetic resources (i.e., genetic material of actual or potential value) of avian and mammalian species, which are used for food and agriculture purposes. AnGR is a subset of and a specific element of agricultural ...
Estimating the economic value of biodiversity (and the costs of its continued loss) in agriculture and through the use of wild species for food is both challenging and controversial. Agricultural biodiversity (agrobiodiversity) refers to all the components of biodiversity that are relevant to food and agriculture, and that make up agricultural ...
Crop diversity or crop biodiversity is the variety and variability of crops, plants used in agriculture, including their genetic and phenotypic characteristics. It is a subset of a specific element of agricultural biodiversity .
There are several methods for measuring abundance. An example of this is Semi-Quantitive Abundance ratings. [6] These are measurement methods which involve estimation based on viewing a specific area of a designated size. [6] The two Semi-Quantitive Abundance ratings used are known as the D.A.F.O.R, and the A.C.F.O.R. [6]
When estimating the effect of climate change on species' extinction risk, the report concluded that global warming of 2 °C (3.6 °F) over the preindustrial levels would threaten an estimated 5% of the Earth's species with extinction even in the absence of any other factors like land use change. If the warming reached 4.3 °C (7.7 °F), they ...
Area-based counts, distance methods, and mark–recapture studies are the three general categories of methods for estimating abundance. Species evenness is combined with species richness , (the number of species in the community), in order to determine species diversity , which is an important measure of community structure.