# Genetics and demography in biological conservation.

@article{Lande1988GeneticsAD,
title={Genetics and demography in biological conservation.},
author={Russell Lande},
journal={Science},
year={1988},
volume={241 4872},
pages={
1455-60
}
}
• R. Lande
• Published 16 September 1988
• Biology, Environmental Science
• Science
Predicting the extinction of single populations or species requires ecological and evolutionary information. Primary demographic factors affecting population dynamics include social structure, life history variation caused by environmental fluctuation, dispersal in spatially heterogeneous environments, and local extinction and colonization. In small populations, inbreeding can greatly reduce the average individual fitness, and loss of genetic variability from random genetic drift can diminish…
2,279 Citations

### THE ROLE OF GENETIC VARIATION IN ADAPTATION AND POPULATION PERSISTENCE IN A CHANGING ENVIRONMENT

• Biology, Environmental Science
Evolution; international journal of organic evolution
• 1996
It is shown that in constant or unpredictable environments genetic variability reduces population mean fitness and increases the risk of extinction, and in predictable, highly variable environments genetic variance may be essential for adaptive evolution and population persistence.

### Experimental separation of genetic and demographic factors on extinction risk in wild populations.

• Environmental Science, Biology
Ecology
• 2013
These results match theoretical predictions that demographic processes will generally doom small populations to extinction before genetic effects act strongly, prioritize detailed ecological analysis over descriptions of genetic structure in assessing conservation of at-risk species, and highlight the need for field experiments manipulating both demographics and genetic structure on long-term extinction risk.

### Landscape Connections and Genetic Diversity

• Environmental Science, Biology
• 2002
This chapter reviews how population genetic processes interact with landscape processes in a conservation biology context and suggests practical ways that managers can address these interactions.

### Genetics of Insect Populations in Fragmented Landscapes - A Comparison of Species and Habitats

• Biology, Environmental Science
• 1996
Analysis of population genetics may provide data that can be included in simulation models for the estimation of population viability and for the persistence of genetic variability in metapopulations under different environmental scenarios.

### Demography, genetic, and extinction process in a spatially structured population of lekking bird

• Environmental Science, Biology
bioRxiv
• 2019
This study showed that the population of T. urogallus experienced a severe decline between 2010 and 2015, but did not detect any Allee effect on survival and recruitment, and underlines the benefit from combining demographic and genetic approaches to investigate processes that are involved in biological extinctions.

### Demography, genetics, and decline of a spatially structured population of lekking bird.

• Environmental Science
Oecologia
• 2021
The study showed that the population of T. urogallus experienced a severe decline between 2010 and 2015, and despite this, it did not detect evidence of inbreeding depression: neither adult survival nor recruitment were affected by individual inbreeding level.

### Recent demographic histories and genetic diversity across pinnipeds are shaped by anthropogenic interactions and mediated by ecology and life-history

• Environmental Science
bioRxiv
• 2018
This study reveals an unforeseen interplay between anthropogenic exploitation, ecology, life history and demographic declines, sheds new light on the determinants of genetic diversity, and is consistent with the notion that both genetic and demographic factors influence population viability.

### The inflated significance of neutral genetic diversity in conservation genetics

• Environmental Science, Biology
Proceedings of the National Academy of Sciences
• 2021
It is demonstrated that no simple general relationship exists between neutral genetic diversity and the risk of species extinction, and a better understanding of the properties of functional genetic diversity, demographic history, and ecological relationships is necessary for developing and implementing effective conservation genetic strategies.

### Anthropogenic, ecological and genetic factors in extinction and conservation

• R. Lande
• Environmental Science
Researches on Population Ecology
• 2007
All factors affecting extinction risk are expressed, and can be evaluated, through their operation on population dynamics, and the genetic factors of inbreeding depression, loss of genetic variability, and fixation of new deleterious mutations are expressed.

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• R. Lande
• Environmental Science
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