Mangrove mapping in Ecuador: The impact of shrimp pond construction

Terchunian, Aram; Klemas, V.; Segovia, Alberto; Álvarez, Alfonso Rey; Vasconez, Bryon; Guerrero, L L

doi:10.1007/bf01867258

Cited by 35 publications

(19 citation statements)

References 4 publications

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“…Rapid losses of mangroves make it crucial to inventory and monitor the remaining mangroves to protect them from harmful development (Blasco, Aizpuru, & Gers, 2001;Gunawardena & Rowan, 2005;Terchunian et al, 1986). Mapping and quantifying the structure and biomass of mangrove ecosystems on a large scale is also important for studies of carbon storage, biodiversity, forest quality, and habitat suitability.…”

Section: Mangrovesmentioning

confidence: 99%

Prospective HyspIRI global observations of tidal wetlands

Turpie

Klemas

Byrd

et al. 2015

Remote Sensing of Environment

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a b s t r a c tTidal wetlands are highly productive and act as critical habitat for a wide variety of plants, fish, shellfish, and other wildlife. These ecotones between aquatic and terrestrial environments also provide protection from storm damage, run-off filtering, and recharge of aquifers. Many wetlands along coasts have been exposed to stress-inducing alterations globally, including dredge and fill operations, hydrologic modifications, pollutants, impoundments, fragmentation by roads/ditches, and sea level rise. For wetland protection and sensible coastal development, there is a need to monitor these ecosystems at global and regional scales. Recent advances in satellite sensor design and data analysis are providing practical methods for monitoring natural and man-made changes in wetlands. However, available satellite remote sensors have been limited to mapping primarily wetland location and extent. This paper describes how the HyspIRI hyperspectral and thermal infrared sensors can be used to study and map key ecological properties, such as species composition, biomass, hydrology, and evapotranspiration of tidal salt and brackish marshes and mangroves, and perhaps other major wetland types, including freshwater marshes and wooded/shrub wetlands.

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Section: Mangrovesmentioning

confidence: 99%

Prospective HyspIRI global observations of tidal wetlands

Turpie

Klemas

Byrd

et al. 2015

Remote Sensing of Environment

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“…Mangrove degradation over time has been recurrently documented (DahdouhGuebas and Koedam 2008;Ellison 2008), but unfortunately direct and indirect anthropogenic pressure persists. Diversion of freshwater flows, deteriorating water quality caused by pollutants and nutrients, over-harvesting for fuel-wood and timber as well as conversion into development activities like agriculture, aquaculture, mining, salt extraction and infrastructure all contribute to the degradation and deforestation of mangrove ecosystems (Saenger et al 1983;Terchunian et al 1986;Primavera 1995;Twilley et al 1995;Mandura 1997;Ellison 1998;Dahdouh-Guebas et al 2000, 2004Valiela et al 2001;Abuodha and Kairo 2001;Kairo et al 2001;Taylor et al 2003;Benfield et al 2005;Duke et al 2007). Climate change poses an additional threat (Gilman et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Mangrove forests in a peri-urban setting: the case of Mombasa (Kenya)

Mohamed

Neukermans

Kairo

et al. 2008

Wetlands Ecol Manage

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The structure and regeneration patterns of the peri-urban mangrove vegetation of Mombasa at Tudor creek were studied along belt transects at two forest sites of Kombeni and Tsalu. Based on the species importance values, the dominant mangrove species were Rhizophora mucronata Lam. (Rhizophoraceae) and Avicennia marina (Forssk.) Vierh. (Avicenniaceae). Lumnitzera racemosa Willd., reported in an earlier floristic survey, was not encountered. Tree density varied from 1,264 trees ha -1 at Kombeni to 1,301 trees ha -1 at Tsalu and mean tree height was higher at the former site compared to the latter. The size-class structure at both localities showed the numerical dominance of small trees over larger trees. The spatial distribution pattern of adults and juveniles varied greatly between sites and showed a close to uniform pattern (Morisita's Index I d ( 1) for adult trees, but a tendency to clustered distribution (I d ) 1) for juveniles. The present paper shows that unmanaged but exploited peri-urban mangroves are structurally stressed, having enlarged canopy gaps that are characterised by spatial and temporal site heterogeneity that influences regeneration, implying longer periods for canopy closure. Diversifying uses of mangrove products and establishing reserves as no cut zones with regulated harvesting will minimise canopy gap sizes, and promote conservation practices. The proposed management strategy shall boost the ecosystem resilience to both anthropogenic and natural stressors expected in the peri-urban setting in the long run.

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“…La deforestación de esta cubierta, aunque importante por el desplazamiento total (aproximadamente 300 ha), se considera marginal en términos de deforestación media anual (0.2%), contrastando con la tendencia mundial (Valiela et al 2001) y también con otras regiones del mundo donde se ha desarrollado la camaronicultura (Terchunian et al 1986, Boyd y Clay 1998 ya que en el sistema estuarino de San Blas la cobertura de manglar no ha sido desplazada por estanques camaronícolas en forma significativa.…”

Section: Discussionunclassified

Assessment of landscape changes and their effects on the San Blas estuarine system, Nayarit (Mexico), through Landsat imagery analysis

Berlanga-Robles

Ruiz‐Luna

2006

CiencMar

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Mangrove mapping in Ecuador: The impact of shrimp pond construction

Cited by 35 publications

References 4 publications

Prospective HyspIRI global observations of tidal wetlands

Prospective HyspIRI global observations of tidal wetlands

Mangrove forests in a peri-urban setting: the case of Mombasa (Kenya)

Assessment of landscape changes and their effects on the San Blas estuarine system, Nayarit (Mexico), through Landsat imagery analysis

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