How does the 50/500 rule apply to MVPs?

Jamieson, Ian G.; Allendorf, Fred W.

doi:10.1016/j.tree.2012.07.001

Cited by 274 publications

(231 citation statements)

References 39 publications

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“…Thus, a simple 50/500 rule of thumb has been applied for a long time as a guidance to determine when genetic threats become relevant to conservation, and to settle the genetic threshold to the minimum size for population viability (the so-called MVP). This rule, used, for example, in the elaboration of the International Union for the Conservation of Nature Red List criteria for threatened species, states that the effective population size (N e ) should be at least 50 to prevent the dramatic consequences from inbreeding depression in the short term, whereas a larger value (N e ⩾ 500) would be needed to preserve adaptive potential in the long term (Franklin, 1980;Jamieson and Allendorf, 2012). As it is well known, these N e values imply considerably larger censuses.…”

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confidence: 99%

On the consequences of ignoring purging on genetic recommendations for minimum viable population rules

García-Dorado

2015

Heredity

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confidence: 99%

On the consequences of ignoring purging on genetic recommendations for minimum viable population rules

García-Dorado

2015

Heredity

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“…This is not in accordance with the finding of Wagner (2000), who calculated an MVP for O. germanica of only 20-80 females (or 40-160 individuals) which should provide a population survival probability of 95% over 20 years. Although the MVP can vary substantially across species and even populations (Flather et al, 2012;Jamieson & Allendorf, 2012), Wagner's estimate seems to be too optimistic. First, his results evidently refer to the effective population size, which usually includes only a small proportion of the whole population (Frankham, 1995).…”

Section: Population Of Oedipoda Germanicamentioning

confidence: 99%

How does Oedipoda germanica (Orthoptera: Acrididae) cope on the northern edge of its distribution? A demographical study of a completely isolated population

Rada¹,

Stepanova²,

Losík³

et al. 2015

Eur. J. Entomol.

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Abstract.We studied a population of the Red-winged grasshopper Oedipoda germanica, which is a highly stenotypic and endangered species in Central Europe. The locality studied is completely isolated and at the northern limit of this species distribution (north-west of the Czech Republic). We used capture-mark-recapture in 3 consecutive years (2008)(2009)(2010). We estimated the total population size using POPAN software to be 136 adults in 2008, 70 in 2009 and 122 in 2010. Estimated daily survival rate (Ф) ranged from 0.950 to 0.987. We constructed linear mixed models to test for apparent survival in relation to temperature data. Temperatures (i.e. mean air temperature and maximum air temperature) were found to have significant effects on survival. The population studied is small, isolated and thus threatened by extinction, as are other O. germanica populations at the northern limit of their distribution. The preservation of indigenous populations in their localities can be achieved by active management, including the removal of shrubs and trees.

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“…Effective population size (Ne) has long been recognized as an important issue in conservation management [1][2][3][4][5][6]. Genetic estimates of Ne are based on random process of sampling from a real population in a given variance of allele frequency or are based on the amount of inbreeding [5,7], and can make a good prediction of the current status of genetic variation developed over time [1].…”

Section: Introductionmentioning

confidence: 99%

“…Genetic estimates of Ne are based on random process of sampling from a real population in a given variance of allele frequency or are based on the amount of inbreeding [5,7], and can make a good prediction of the current status of genetic variation developed over time [1]. Ne has been suggested as a major relevant indicator for evaluating the conservation status and threats to the genetic health of populations [4].…”

Section: Introductionmentioning

confidence: 99%

Applying Effective Population Size Estimates of Kandelia obovata Sheue, Liu and Yong to Conservation and Restoration Management

Huang

et al. 2015

Forests

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Effective population size (Ne) is a crucial metric for evaluating the current status of genetic diversity and conservation management. Population of Kandelia obovata, a mangrove species that is patchily distributed along the estuaries off Southeastern China, is genetically structured. Here, we applied skyline analyses to infer the demographic history of K. obovata based on Amplified Fragment Length Polymorphisms (AFLP) data. Congruent trends of population growth rate among populations, but concurrent change in Ne estimates, were inferred in all populations. The recent rapid habitat expansion explains the high census population size but small Ne of populations in Northern Taiwan. Our study also revealed lower Ne of reforested populations than their sources. In silico demographic analyses simulate the small or biased sampling of seedlings for reforestation and revealed over 90% and 99% Ne reduction when only 1/2 and 1/10 samples were collected, respectively. These results emphasize the importance of a comprehensive sampling of OPEN ACCESSForests 2015, 6 1440 seeds for restoration. Overall, this study rendered, not only the current Ne of K. obovata populations, but also indicates the importance of Ne estimation on restoration.

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How does the 50/500 rule apply to MVPs?

Cited by 274 publications

References 39 publications

On the consequences of ignoring purging on genetic recommendations for minimum viable population rules

On the consequences of ignoring purging on genetic recommendations for minimum viable population rules

How does Oedipoda germanica (Orthoptera: Acrididae) cope on the northern edge of its distribution? A demographical study of a completely isolated population

Applying Effective Population Size Estimates of Kandelia obovata Sheue, Liu and Yong to Conservation and Restoration Management

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