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Scientific understanding of the process of extinction is insufficient to accurately make predictions about the impact of deforestation on biodiversity. [229] Most predictions of forestry related biodiversity loss are based on species-area models, with an underlying assumption that as the forest declines species diversity will decline similarly ...
Biodiversity loss happens when plant or animal species disappear completely from Earth or when there is a decrease or disappearance of species in a specific area. Biodiversity loss means that there is a reduction in biological diversity in a given area. The decrease can be temporary or permanent.
Other effect of deforestation in the Amazon rainforest is seen through the greater amount of carbon dioxide emission. The Amazon rainforest absorbs one-fourth of the carbon dioxide emissions on Earth, however, the amount of CO 2 absorbed today decreases by 30% than it was in the 1990s due to deforestation. [35]
Habitat destruction (also termed habitat loss and habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease in biodiversity and species numbers .
Habitat loss, which can occur through the process of habitat fragmentation, is considered to be the greatest threat to species. [14] But, the effect of the configuration of habitat patches within the landscape, independent of the effect of the amount of habitat within the landscape (referred to as fragmentation per se [ 5 ] ), has been ...
Deforestation of the Amazon rainforest is the most dramatic example of a massive, continuous ecosystem and a biodiversity hotspot being under the immediate threat from habitat destruction through logging, and the less-visible, yet ever-growing and persistent threat from climate change.
Loss of biodiversity: This is the decline in the number and variety of plant and animal species. Loss of biodiversity can have a number of negative impacts, including the disruption of food chains and the loss of ecosystem services. Land conversion can also have a number of negative economic impacts, [27] including:
Deforestation and biodiversity loss in the Amazon rainforest have resulted in significant risks of irreversible changes. Modeling studies have suggested that deforestation may be approaching a critical "tipping point" where large-scale "savannization" or desertification could occur, [71] leading to catastrophic consequences for the global climate.