Several major environmental issues like biodiversity loss and climate change currently concern the international
community. These topics that are related to the development of human societies have become
increasingly important since the United Nations Conference on Environment and Development (UNCED)
or Earth Summit in Rio de Janeiro in 1992. In this article, we are interested in the first issue. We present
here many examples of the help that using mathematical programming can provide to decision-makers
in the protection of biodiversity. The examples we have chosen concern the selection of nature reserves,
the control of adverse effects caused by landscape fragmentation, including the creation or restoration of
biological corridors, the ecological exploitation of forests, the control of invasive species, and the maintenance
of genetic diversity. Most of the presented models are – or can be approximated with – linear-,
quadratic- or fractional-integer formulations and emphasize spatial aspects of conservation planning.
Many of them represent decisions taken in a static context but temporal dimension is also considered.
The problems presented are generally difficult combinatorial optimization problems, some are well
solved and others less well. Research is still needed to progress in solving them in order to deal with real
instances satisfactorily. Moreover, relations between researchers and practitioners have to be strengthened.
Furthermore, many recent achievements in the field of robust optimization could probably be successfully
used for biodiversity protection, a domain in which many data are uncertain.
Several major environmental issues like biodiversity loss and climate change currently concern the internationalcommunity. These topics that are related to the development of human societies have becomeincreasingly important since the United Nations Conference on Environment and Development (UNCED)or Earth Summit in Rio de Janeiro in 1992. In this article, we are interested in the first issue. We presenthere many examples of the help that using mathematical programming can provide to decision-makersin the protection of biodiversity. The examples we have chosen concern the selection of nature reserves,the control of adverse effects caused by landscape fragmentation, including the creation or restoration ofbiological corridors, the ecological exploitation of forests, the control of invasive species, and the maintenanceof genetic diversity. Most of the presented models are – or can be approximated with – linear-,quadratic- or fractional-integer formulations and emphasize spatial aspects of conservation planning.Many of them represent decisions taken in a static context but temporal dimension is also considered.The problems presented are generally difficult combinatorial optimization problems, some are wellsolved and others less well. Research is still needed to progress in solving them in order to deal with realinstances satisfactorily. Moreover, relations between researchers and practitioners have to be strengthened.Furthermore, many recent achievements in the field of robust optimization could probably be successfullyused for biodiversity protection, a domain in which many data are uncertain.
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