We start by reviewing several results that have been obtained by the author concerning a general model of population growth in a randomly varying environment of the form dN /dt = (g(N ) + σ (N )ε(t)) N , where N = N (t) is the population size at time t. In this general model we have assumed that the
Risk of population extinction from periodic and abrupt changes of environment
✍ Scribed by Andrzej Pękalski; Marcel Ausloos
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 803 KB
- Volume
- 387
- Category
- Article
- ISSN
- 0378-4371
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Environmental threats, such as habitat size reduction or environmental pollution, may not cause immediate extinction of a population but shorten the expected time to extinction. We develop a method to estimate the mean time to extinction for a density-dependent population with environmental #uctuati
In the last several years evidence has mounted that a series of abrupt changes in sediment delivery and palaeoceanography effected the North Atlantic; they are recorded in a variety of proxy records but most dramatically in changes of grain-size and mineralogy associated with postulated iceberg raft
Needle-sharing and sexual contact are important transmission routes of hepatitis B, C, and D virus (HBV, HCV, HDV) infection. This study aimed to investigate the current status of these viral infections among high-risk populations including prostitutes and intravenous (i.v.) drug users, compared wit