Global - Scale Shorebird Distribution in Relation to Productivity of Near - Shore Ocean Waters
نویسندگان
چکیده
-The median density of shorebirds during their non-breeding season on the coast of South America was significantly greater in coastal zones with high primary productivity than in zones with moderate and low primary productivity. A world-wide review showed that sites harboring large numbers of wintering and migratory shorebirds corresponded significantly with regions of high coastal zone productivity. We suggest that the spacing of rich intertidal foraging habitats along the world's coastlines has been an important feature in the evolution of long distance migration by shorebirds. Received 16 November 2000, accepted 20 December 2000.
منابع مشابه
Investigating Paleoenvironmental Factors of Strait of Hormuz during the Holocene
The objective of this study is to understand the calcareous nannoplankton response to past environmental changes in the Strait of Hormuz during the Holocene. Calcareous nannoplankton is well abundant in the living phytoplankton community and a key component of the marine sediments. Due to its distinct reaction to environment changes and its good preservation potential, it is well suited for p...
متن کاملEffect of bait's type and shape on catching efficiency of Pots (Gargoor) in Bandar Lengeh waters (Hormozgan province)
Gargoor, a wired traditional pot, is used to catch demersal fish on rocky substrates. The objective of this study was to investigate the effect of bait's type and shape on catching efficiency of Gargoors in Bandar Lengeh waters (Hormozgan). The study area was divided into near-shore waters (station 1) and off-shore waters (station 2). Sampling was performed by Seventy-two pots with the same soa...
متن کاملPredictive Modelling to Identify Near-Shore, Fine-Scale Seabird Distributions during the Breeding Season
During the breeding season seabirds are constrained to coastal areas and are restricted in their movements, spending much of their time in near-shore waters either loafing or foraging. However, in using these areas they may be threatened by anthropogenic activities such as fishing, watersports and coastal developments including marine renewable energy installations. Although many studies descri...
متن کاملEvaluation and classification of trophic status in coastal waters of Homozgan province using trophic index Scale (Trixcs) and unscale (Untrixcs)
One of the most important issues in environmental management of coastal waters is the evaluation of Eutrophication. In this study, the trophic status of coastal waters of Hormozgan province was evaluated using Scale (TRIXCS) and Unscale (UNTRIXCS) trophic indices in 2012. The results showed that TRIXCS values were in the range of 3.6 to 5.9 (in the area 1 Mezo-Eutroph, areas 2 and 3 Mezotroph, ...
متن کاملShearwater Foraging in the Southern Ocean: The Roles of Prey Availability and Winds
BACKGROUND Sooty (Puffinus griseus) and short-tailed (P. tenuirostris) shearwaters are abundant seabirds that range widely across global oceans. Understanding the foraging ecology of these species in the Southern Ocean is important for monitoring and ecosystem conservation and management. METHODOLOGY/PRINCIPAL FINDINGS Tracking data from sooty and short-tailed shearwaters from three regions o...
متن کامل