Mangrove forests: one of the world's threatened major tropical environments.
Reads0
Chats0
TLDR
In this article, Saenger et al. reviewed the status of mangrove swamps worldwide and assessed the effect of human activities on mangroves in the coastal environment using satellite imagery.Abstract:
he mass media and scientific press have widely reported losses of tropical environments, such as fellingof rain forests and bleaching of coral reefs.This well-meritedattention has created a worldwide constituency that supportsconservation and restoration efforts in both of these threat-ened ecosystems. The remarkable degree of public aware-ness and support has been manifested in benefit rock concertsat Carnegie Hall and in the designation of ice cream flavorsafter rain forest products. Mangrove forests are another im-portant tropical environment,but these have received muchless publicity.Concern about the magnitude of losses of man-grove forests has been voiced mainly in the specialized liter-ature (Saenger et al. 1983, Spalding et al. 1997).Mangrove trees grow ubiquitously as a relatively narrowfringe between land and sea, between latitudes 25°N and30°S.They form forests of salt-tolerant species,with complexfood webs and ecosystem dynamics (Macnae 1968,Lugo andSnedaker 1974, Tomlinson 1986).Destruction of mangrove forests is occurring globally.Global changes such as an increased sea level may affect man-groves (Ellison 1993,Field 1995),although accretion rates inmangrove forests may be large enough to compensate for thepresent-day rise in sea level (Field 1995).More important,itis human alterations created by conversion of mangroves tomariculture,agriculture,and urbanization,as well as forestryuses and the effects of warfare, that have led to the remark-able recent losses of mangrove habitats (Saenger et al. 1983,Fortes 1988, Marshall 1994, Primavera 1995, Twilley 1998).New data on the magnitude of mangrove area and changesin it have become more readily available, especially with theadvent of satellite imagery and the Internet. Moreover, in-formation about the function of mangrove swamps, theirimportance in the sustainability of the coastal zone, and theeffects of human uses of mangrove forests is growing. Somepublished regional assessments have viewed anthropogenicthreats to mangrove forests with alarm (Ong 1982,Fortes 1988,Ellison and Farnsworth 1996),but reviews at the global scaleare dated (Linden and Jernelov 1980, Saenger et al. 1983).We collated and revised published information to reviewthe status of mangrove swamps worldwide.To assess the sta-tus of this major coastal environment, we compiled and ex-amined available data to quantify the extent of mangroveforest areas in different parts of the world,the losses of man-grove forest area recorded during recent decades, and therelative contributions by various human activities to theselosses.We first assessed current mangrove forest area in tropicalcountries of the world.It is difficult to judge the quality of thesedata in the published literature, because in many cases themethods used to obtain them were insufficiently described andthe associated uncertainty was not indicated. Much infor-mation based on satellite imagery is summarized in theread more
Citations
More filters
Journal ArticleDOI
Assessment of brazilian mangroves hydrocarbon contamination from a latitudinal perspective.
Michelle P. Araújo,Cláudia Hamacher,Cassia O. Farias,Plinio F. Martinho,Filipe de Oliveira Chaves,Mário Luiz Gomes Soares +5 more
TL;DR: According to sediment quality reference values, the evaluated sediments are not likely to cause biological effects, but deserve attention due to the current expansion scenario of oil prospecting activities off the Brazilian coast.
Journal ArticleDOI
Interaction of alongshore sediment transport and habitat conditions at Laguna La Mancha, Veracruz, Mexico
Norbert P. Psuty,M. Luisa Martínez,Jorge López-Portillo,Tanya M. Silveira,José G. García-Franco,Natalia A. Rodríguez +5 more
TL;DR: The habitats of La Mancha Lagoon, located midway along the coast of Veracruz, Mexico, are responding to the change of sediment supply reaching its primary inlet at the Gulf of Mexico as mentioned in this paper.
Journal ArticleDOI
Multi-Source Remote Sensing Data Product Analysis: Investigating Anthropogenic and Naturogenic Impacts on Mangroves in Southeast Asia
Anjar Dimara Sakti,Adam Irwansyah Fauzi,Felia Niwan Wilwatikta,Yoki Sepwanto Rajagukguk,Sonny A. Sudhana,Lissa Fajri Yayusman,Luri Nurlaila Syahid,Tanakorn Sritarapipat,Jeark Principe,Nguyen Thi Quynh Trang,Endah Sulistyawati,Inggita Utami,Candra Wirawan Arief,Ketut Wikantika +13 more
TL;DR: The relationship between water balance and degradation shows that naturogenic drivers have a wider impact than anthropogenic drivers, and degradation in particular regions is likely to be a result of the accumulation of various drivers.
Journal Article
Patterns of nutrient exchange in a riverine mangrove forest in the Shark River Estuary, Florida, USA
Victor H. Rivera-Monroy,Kim de Mutsert,Robert R. Twilley,Edward Castañeda-Moya,Melissa M. Romigh,Stephen E. Davis +5 more
TL;DR: In this article, the authors evaluated the seasonal variations in concentrations and fluxes of nitrogen (NH4 +, NO2+NO3, total nitrogen) and phosphorus (soluble reactive phosphorus, total phosphorus) in a riverine mangrove forest using the flume technique during the dry (May, December 2003) and rainy (October 2003) seasons in the Shark River Estuary, Florida.
Journal ArticleDOI
Defining a free market: drivers of unsustainability as illustrated with an example of shrimp farming in the mangrove forest in South East Asia
TL;DR: In this article, causal loop diagrams (CLD) are applied to the tragedy of the commons to understand how complex societal scenarios can be understood in terms of interdependent drivers and mechanisms between actors from the public and private sectors respectively.
References
More filters
Book
The botany of mangroves
TL;DR: The aim of this work is to contribute to the human awareness of the natural world and to contribute towards the humanizing of nature.
Book ChapterDOI
A General Account of the Fauna and Flora of Mangrove Swamps and Forests in the Indo-West-Pacific Region
TL;DR: Mangroves are trees or bushes growing between the level of high water of spring tides and a level close to but above mean sea-level and the land animals found in mangrove forests include roosting flocks of fruit bats, fishing and insectivorous birds, and many insects are conspicuous.
Book
Marine Ecology of the Arabian Region: Patterns and Processes in Extreme Tropical Environments
TL;DR: Mariane ecology of the arabian region as discussed by the authors, Patterns and processes in extereme tropical environmental, Mariane ecology in arabians region, patterns and processes of tropical ecology, patterns of tropical environmental patterns, patterns, processes, and processes.