Ecological and Geomorphic Impact of the Destruction of a Coastal Sand Dune System in a Sand Spitby Oscar Efraín González-Yajimovich, Univ Autonoma de Baja California, Ensenada, Mexico,
Anamaria Escofet, Univ Autonoma de Baja California, Ensenada, Mexico,
Abstract: Two main effects of the destruction of the coastal dunes at the sand spit of Estero de Punta Banda, (B.C., Mexico) were studied comparing unaltered and altered adjacent zones, The amount of sediment transported to the lagoon through the altered zone was three times as much as in the unaltered zone. The number of individual Snowy Plover was significantly bigger in the unaltered zone. Both the geomorphic and biological effects suggest that the common practice of destruction of dunes systems should be given better attention in coastal management programs.
Subject Headings: Sand (hydraulic) | Sandy soils | Dunes | Spits (landform) | Ecosystems | Sediment transport | Sea water | Biological processes | North America | Mexico
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