By M. L. Martínez, Norbert P. Psuty

Coastal dunes ensue in nearly each range - from tropical to polar - and feature been considerably altered by means of human actions. Many are already significantly and irreversibly degraded. even if those ecosystems were studied for a very long time (as early as 1835), there was a powerful emphasis at the mid-latitude dune structures and a scarcity of awareness given to the tropics the place, regrettably, a lot of the trendy exploitation and coastal improvement for tourism is happening.

This booklet brings jointly coastal dune experts from tropical and temperate latitudes, which jointly disguise a large set of themes, together with: geomorphology, neighborhood dynamics, ecophysiology, biotic interactions and environmental difficulties and conservation. an immense fabricated from this publication is a collection of concepts for destiny learn, settling on correct themes the place particular wisdom remains to be missing. It additionally identifies administration instruments that would advertise and hold the wealthy range of the dune environments within the context of constant coastal development.

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Additional resources for Coastal Dunes: Ecology and Conservation

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References Arens SM (1994) Aeolian processes in the Dutch foredunes. PhD Diss, Univ of Amsterdam Arens SM (1997) Transport rates and volume changes in a foredune on a Dutch Wadden island. J Coast Cons 3:49–56 Bagnold RA (1941) The physics of blown sands and desert dunes. Methuen, London Bate G, Ferguson M (1996) Blowouts in coastal foredunes. Landscape Urban Plann 34:215–224 Bauer BO, Sherman DJ (1999) Coastal dune dynamics: problems and prospects. In: Goudie AS, Livingstone I, Stokes S (eds) Aeolian environments, sediments and landforms.

1 River Mouth Discharge This sequence relates the concept of a point source of sediment input and the relationship of dune morphology to the quantity of sand available at distances away from that source (Fig. 4). The general scenario incorporates discharge with adequate sand to cause shoreline accretion and seaward displacement of the shoreline at the river mouth but with slower accretion at increasing distance from the mouth. Near the river mouth, the coastal topography would incorporate many low abandoned foredune ridges (Fig.

1992). In toto, such development often eventually comprises an incipient foredune zone. Such foredunes may be seasonal if formed in annual plants, and require invasion by perennial plants in order to survive. Plant species type is important in determining morphological development; species such as the tall, dense Ammophila tend to produce higher, more hummocky peaked dune forms than lower, more spreading, rhizomatous plants such as Spinifex or Ipomoea which produce lower, less hummocky dune forms (Hesp 2002).

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