Biodiversity: Extinction by numbers

@article{Pimm2000BiodiversityEB,
  title={Biodiversity: Extinction by numbers},
  author={Stuart L. Pimm and Peter H. Raven},
  journal={Nature},
  year={2000},
  volume={403},
  pages={843-845}
}
Habitat destruction, especially of the humid forests in the tropics, is the main cause of the species extinctions happening now. New work documents the uneven, highly clumped distribution of vulnerable species on the Earth, and pinpoints 25 so-called ‘biodiversity hotspots’. Seventeen of them are tropical forest areas, and here reduction of natural habitat is disproportionately high. Nonetheless, identification of this pattern should enable resources for conservation to be better focused. 

Topics from this paper

Hotspots and the conservation of evolutionary history
TLDR
This work used supertrees for carnivores and primates to estimate that nearly 70% of the total amount of evolutionary history represented in these groups is found in 25 biodiversity hotspots, showing that conservation of these hotspots is critical. Expand
Tropical turmoil: a biodiversity tragedy in progress
All is not well for biodiversity in the tropics. Despite recent debate over the extent of future tropical extinctions and the effectiveness of reserve systems, the continued disappearance of habitat,Expand
What Are Biodiversity Hotspots?
The image of a tropical forest is likely present in your imagination: green, warm, and wet, with large trees, thick shrubs, and a wide variety of insects, birds, and mammals. This image is accurate:Expand
Habitat loss and deterioration explain the disappearance of populations of threatened vascular plants, bryophytes and lichens in a hemiboreal landscape
TLDR
The results support the conclusion that vascular plant, bryophyte and lichen populations in the boreal landscape have disappeared directly because their habitats have disappeared, declined in size or deteriorated due to forestry, agriculture, construction, mining and pollution. Expand
Diversity and dynamics of amphibians in floodplain ecosystems of the Samara river
TLDR
Issues of the animals’ use in biological restoration, ecological rehabilitation of technogenic landscapes and in bioindication of environmental conditions are covered, and practical recommendations on protection and enrichment of the regional herpetofauna are given. Expand
Endemism, diversity, and the threat of tropical moist forest extinctions
Extinction rates have risen to perhaps 104 the background rate. Much of this increase is due to projected influences of habitat loss on regions of the world with tropical moist forest. ThisExpand
Habitat Fragmentation in Arid Zones: A Case Study of Linaria nigricans Under Land Use Changes (SE Spain)
TLDR
The results indicate that greenhouses and construction activities exert a strong impact on the populations of this endangered species, and a rapid extinction could take place and some populations may disappear as early as the year 2030. Expand
GLOBAL MARINE BIODIVERSITY TRENDS
■ Abstract Marine biodiversity encompasses all levels of complexity of life in the sea, from within species to across ecosystems. At all levels, marine biodiversity has naturally exhibited a general,Expand
Targeted habitat restoration can reduce extinction rates in fragmented forests
TLDR
The impact of targeted habitat restoration on how long tropical bird species might persist in two tropical biodiversity hotspots is assessed—the Eastern Arc Mountains of Tanzania and the Atlantic Forest of Brazil—to provide one of the highest returns on investment for biodiversity conservation worldwide. Expand
Range size and climatic niche correlate with the vulnerability of epiphytes to human land use in the tropics
Aim Range-restricted species account for a large proportion of global biodiversity, and many such species are highly threatened by deforestation and intensifying land use in the tropics. TheExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 10 REFERENCES
Biodiversity hotspots for conservation priorities
TLDR
A ‘silver bullet’ strategy on the part of conservation planners, focusing on ‘biodiversity hotspots’ where exceptional concentrations of endemic species are undergoing exceptional loss of habitat, is proposed. Expand
The Future of Biodiversity
TLDR
Estimates of future extinctions are hampered by the authors' limited knowledge of which areas are rich in endemics, and regions rich in species found only within them (endemics) dominate the global patterns of extinction. Expand
Time Lag between Deforestation and Bird Extinction in Tropical Forest Fragments
Tropical forests are becoming increasingly fragmented, threatening the survival of the species that depend on them. Small, isolated forest fragments will lose some of their original species. What isExpand
Positive feedbacks in the fire dynamic of closed canopy tropical forests
TLDR
The forest fire dynamics in two regions of the eastern Amazon were studied and found that forest fires create positive feedbacks in future fire susceptibility, fuel loading, and fire intensity. Expand
Tropical Deforestation and Habitat Fragmentation in the Amazon: Satellite Data from 1978 to 1988
TLDR
Although this rate of deforestation is lower than previous estimates, the effect on biological diversity is greater and tropical forest habitat, severely affected with respect to biological diversity, increased. Expand
1997 IUCN red list of threatened plants.
This represents the most comprehensive compilation of data on threatened vascular plants ever published. It includes the names of some 33,000 plant species determined to be rare or threatened on aExpand
Deforestation Predicts the Number of Threatened Birds in Insular Southeast Asia
The world's tropicalforests are being cleared rapidly, and ecologists claim this is causing a massive loss of species. This claim has its critics. Can we predict extinctions from the extent ofExpand
Mapping and GIS analysis of the global distribution of coral reef fishes on an equal-area grid
Tropical coral reefs form the most diverse and productive ecosystems in the oceans (Dubinsky, 1990). At higher taxonomic levels (e.g. orders, classes and phyla) reefs are perhaps the most diverseExpand
Large-scale impoverishment of Amazonian forests by logging and fire
Amazonian deforestation rates are used to determine human effects on the global carbon cycle and to measure Brazil's progress in curbing forest impoverishment,,. But this widely used measure ofExpand