On the brink between extinction and persistence
(2008) In Biology Direct 3.- Abstract
- The nature of size fluctuations is crucial in forecasting future population persistence, independently of whether the variability stems from external forces or from the dynamics of the population renewal process. The risk of intercepting zero is highly dependent on the way the variance of the population size relates to its mean. The minimum population size required for a population not to go extinct can be determined by a scaling equation relating the variance to the arithmetic mean. By the use of a derived expression for the harmonic mean defined by the parameters of the scaling equation we show how it is possible to separate the domains of persistence from those of extinction and to facilitate the identification of populations on the... (More)
- The nature of size fluctuations is crucial in forecasting future population persistence, independently of whether the variability stems from external forces or from the dynamics of the population renewal process. The risk of intercepting zero is highly dependent on the way the variance of the population size relates to its mean. The minimum population size required for a population not to go extinct can be determined by a scaling equation relating the variance to the arithmetic mean. By the use of a derived expression for the harmonic mean defined by the parameters of the scaling equation we show how it is possible to separate the domains of persistence from those of extinction and to facilitate the identification of populations on the brink of extinction. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1376268
- author
- Pertoldi, Cino ; Bach, Lars LU and Loeschcke, Volker
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biology Direct
- volume
- 3
- article number
- 47
- publisher
- BioMed Central (BMC)
- external identifiers
-
- wos:000262155800001
- scopus:58149358970
- pmid:19019237
- ISSN
- 1745-6150
- DOI
- 10.1186/1745-6150-3-47
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical ecology (Closed 2011) (011006011)
- id
- d647fcce-d747-45af-900c-b91b92621841 (old id 1376268)
- date added to LUP
- 2016-04-01 14:55:14
- date last changed
- 2022-01-28 03:10:02
@article{d647fcce-d747-45af-900c-b91b92621841,
abstract = {{The nature of size fluctuations is crucial in forecasting future population persistence, independently of whether the variability stems from external forces or from the dynamics of the population renewal process. The risk of intercepting zero is highly dependent on the way the variance of the population size relates to its mean. The minimum population size required for a population not to go extinct can be determined by a scaling equation relating the variance to the arithmetic mean. By the use of a derived expression for the harmonic mean defined by the parameters of the scaling equation we show how it is possible to separate the domains of persistence from those of extinction and to facilitate the identification of populations on the brink of extinction.}},
author = {{Pertoldi, Cino and Bach, Lars and Loeschcke, Volker}},
issn = {{1745-6150}},
language = {{eng}},
publisher = {{BioMed Central (BMC)}},
series = {{Biology Direct}},
title = {{On the brink between extinction and persistence}},
url = {{http://dx.doi.org/10.1186/1745-6150-3-47}},
doi = {{10.1186/1745-6150-3-47}},
volume = {{3}},
year = {{2008}},
}