By Ivan Nagelkerken (auth.), Ivan Nagelkerken (eds.)
Mangrove forests, seagrass beds, and coral reefs are circumtropical ecosystems which are hugely efficient, and supply many vital organic services and monetary prone. those ecosystems disguise huge floor components within the shallow tropical coastal seascape yet have suffered from severe human degradation, specially within the previous few many years. a part of their variety, productiveness, and functioning appears in accordance with their juxtaposition. particularly within the final decade major advances were made on new insights into their ecological connectivity. This authoritative publication offers a first-time entire evaluate of the main ecological interactions throughout tropical marine ecosystems that outcome from the mutual alternate of meals, natural topic, fish, and crustaceans. a bunch of prime authors from all over the world studies the styles and underlying mechanisms of vital biogeochemical and organic linkages between tropical coastal ecosystems in 15 chapters. incorporated are chapters that evaluation state of the art instruments to check and quantify those linkages, the significance of such linkages for fisheries, and the way tropical ecosystems may be conserved and controlled for sustainable use via destiny generations. The e-book makes use of examples from world wide and gives an updated evaluation of the newest released literature. This ebook is a ‘must learn’ for pros engaged on the conservation, administration, and ecology of mangrove, seagrass and coral reef ecosystems.
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Additional info for Ecological Connectivity Among Tropical Coastal Ecosystems
5), upland or mangrove-derived nutrients can have immediate, direct impacts on nearby seagrass beds. E. Davis et al. Fig. 4 Estimated fluxes of total nitrogen (TN) and total phosphorus (TP) from Taylor River, Florida (USA)—a mangrove creek that empties into NE Florida Bay. , seagrass) sediment and subsequent deposition in nearby mangrove forests (Davis et al. 2004; Fig. 5). Within seagrass beds, significant nutrient uptake can be achieved through leaves and the root-rhizome system. , Udy et al.
As a result of methodological and resource constraints, our tendency has been to focus on the direct linkages between the ecosystems illustrated in the simple conceptual diagram in Fig. 1. Simulations and mass-balance studies can provide some insight into net ecosystem exchanges of materials, but there is a pressing need for studies quantifying the exchange of N and P across the land—ocean interface along tropical coastlines. Chapter 12 describes several recent methods that can be used to identify sources of organic materials in the water column, sediments, and live biomass of each of these ecosystems.
Since phosphorus concentrations are so low in Taylor River, Davis et al. (2001a, b) were unable to detect significant flux of SRP between the wetland soil, vegetation, and water column. However, they were able to detect significant exchange of TP in the dwarf mangrove wetland during both wet and dry season samplings (Davis et al. 3). 5 N and P Flux in Seagrass Ecosystems Along undeveloped tropical coastlines, upland runoff typically passes through mangrove forests before being discharged into nearshore seagrass beds.