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A landscape is "a mosaic of heterogeneous land forms, vegetation types, and land uses" (Urban et al., 1987). Therefore, assemblages of different ecosystems (the physical environments and the species that inhabit them, including humans) create landscapes on Earth. Although there is no standard definition of the size of a landscape, they are usually in the hundred or thousands of square miles.

Species composition and population viability are often affected by the structure of the landscape; for example, the size, shape, and connectivity of individual patches of ecosystems within the landscape (Noss, 1990). Conservation management should be directed at whole landscapes to ensure the survival of species that range widely across different ecosystems (e.g., jaguars, quetzals, species of plants that have widely dispersed pollen and seeds) (Hunter, 2002: 83-85, 268-270).

Diversity within and between landscapes depends on local and regional variations in environmental conditions, as well as the species supported by those environments. Landscape diversity is often incorporated into descriptions "ecoregions,"

Glossary

Landscape:
a mosaic of heterogeneous land forms, vegetation types, and land uses (Urban et al., 1987)

References

  1. Urban, D.L., R.V. O'Neill and H.H. Shugart. (1987). Landscape ecology. BioScience, 37, 119-127.
  2. Noss, R.F. (1990). Indicators for monitoring biodiversity: a hierarchical approach. Conservation Biology, 4(4), 355-364.
  3. Stein, B.A., L.S. Kutner, and J.S. Adams. (2000). Precious heritage: the status of biodiversity in the United States. Oxford, U.K.: Oxford University Press.

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Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

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What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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