Species Coextinctions and the Biodiversity Crisis

@article{Koh2004SpeciesCA,
  title={Species Coextinctions and the Biodiversity Crisis},
  author={Lian Pin Koh and Robert R. Dunn and Navjot S. Sodhi and Robert K. Colwell and Heather C. Proctor and Vincent S Smith},
  journal={Science},
  year={2004},
  volume={305},
  pages={1632 - 1634}
}
To assess the coextinction of species (the loss of a species upon the loss of another), we present a probabilistic model, scaled with empirical data. The model examines the relationship between coextinction levels (proportion of species extinct) of affiliates and their hosts across a wide range of coevolved interspecific systems: pollinating Ficus wasps and Ficus, parasites and their hosts, butterflies and their larval host plants, and ant butterflies and their host ants. Applying a nomographic… 

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References

SHOWING 1-10 OF 18 REFERENCES

Co‐Extinctions of Tropical Butterflies and their Hostplants

This simulation shows that the number of extinct butterfly species is expected to increase exponentially with that of extinct hostplants, and suggests that the preservation of whole habitats is urgently needed if the possible cascading effects of species (co-)extinctions are to be avoided.

Environmental Changes, Coextinction, and Patterns in the Fossil Record

A new model for large scale evolution and extinction in which species are organized into food webs, which is able to reproduce the empirical observations without defining a fitness function or invoking competition between species.

Habitat fragmentation, percolation theory and the conservation of a keystone species

Many species survive in specialized habitats. When these habitats are destroyed or fragmented the threat of extinction looms. In this paper, we use percolation theory to consider how an environment

Catastrophic extinctions follow deforestation in Singapore

Extrapolations of the observed and inferred local extinction data imply that the current unprecedented rate of habitat destruction in Southeast Asia will result in the loss of 13–42% of regional populations over the next century, at least half of which will represent global species extinctions.

Nonrandom extinction and the loss of evolutionary history.

It is estimated that the prospective extra loss of mammalian evolutionary history alone would be equivalent to losing a monotypic phylum, and the potentially severe implications of the clumped nature of threat for the loss of biodiversity are shown.

Extinction and the loss of evolutionary history.

It is shown that approximately 80 percent of the underlying tree of life can survive even when approximately 95 percent of species are lost, and that algorithms that maximize the amount of evolutionary history preserved are not much better than choosing the survivors at random.

Biodiversity: Extinction by numbers

New work documents the uneven, highly clumped distribution of vulnerable species on the Earth, and pinpoints 25 so-called ‘biodiversity hotspots’, which should enable resources for conservation to be better focused.

Variation in Local-Scale Edge Effects: Mechanisms and landscape Context

The first approximation to predicting the impact of agricultural or permanently managed edges on forest songbird reproductive success is to assess habitat characteristics at the landscape scale.

Heavy Extinctions of Forest Avifauna in Singapore: Lessons for Biodiversity Conservation in Southeast Asia

Abstract: The consequences of rapid rainforest clearance on native avifauna are poorly understood. In Southeast Asia, Singapore, a newly developing country, has had 95% of its native lowland

PIGEON LICE DOWN UNDER: TAXONOMY OF AUSTRALIAN CAMPANULOTES (PHTHIRAPTERA: PHILOPTERIDAE), WITH A DESCRIPTION OF C. DURDENI N. SP

Campanulotes flavus (Rudow, 1869) from Phaps chalcoptera is redescribed and illustrated. C. defectus Tendeiro, 1969, erroneously recorded from the extinct passenger pigeon Ectopistes migratorius, is