A Conceptual Framework to Develop Long-Term Ecological Research and Management Objectives in the Wider Caribbean Region

Rivera‐Monroy, Victor H.; Twilley, Robert R.; Bone, David; Childers, Daniel L.; Coronado‐Molina, Carlos; Feller, Ilka C.; Herrera-Silveira, Jorge A.; Jaffé, Rudolf; Mancera, Ernesto; Rejmánková, Eliška; Salisbury, Joseph E.; Weil, Ernesto

doi:10.1641/0006-3568(2004)054[0843:acftdl]2.0.co;2

Cited by 59 publications

(36 citation statements)

References 54 publications

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“…Fertilization experiments in several such old-growth scrub mangrove stands have demonstrated that they are nutrient limited and that addition of the limiting nutrient dramatically increased their productivity and converted their stunted physiognomy to resemble more vigorously growing trees in fringing mangrove forests (Feller 1995, Feller et al 2003a, b, Lovelock et al 2006, Martin et al 2010. Although the aboveground biomass in scrub mangroves is low compared to other types of mangrove forests, these low-stature forests are widespread and have been documented to dominate much of the mangrove landscape not only at our study site along the IRL (Feller et al 2003b), but also in south Florida (Ross et al 2001, Simard et al 2006, Belize (Murray et al 2003, Rodriguez and, Panama (Lovelock et al 2005), and throughout the Caribbean (Rivera- Monroy et al 2004).…”

Section: Discussionmentioning

confidence: 69%

Nutrient enrichment intensifies hurricane impact in scrub mangrove ecosystems in the Indian River Lagoon, Florida, USA

Feller

Dangremond

Devlin

et al. 2015

Ecology

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Abstract. Mangroves are an ecological assemblage of trees and shrubs adapted to grow in intertidal environments along tropical, subtropical, and warm temperate coasts. Despite repeated demonstrations of their ecologic and economic value, multiple stressors including nutrient over-enrichment threaten these and other coastal wetlands globally. These ecosystems will be further stressed if tropical storm intensity and frequency increase in response to global climate changes. These stressors will likely interact, but the outcome of that interaction is uncertain. Here, we examined potential interaction between nutrient over-enrichment and the September 2004 hurricanes. Hurricanes Frances and Jeanne made landfall along Florida's Indian River Lagoon and caused extensive damage to a long-term fertilization experiment in a mangrove forest, which previously revealed that productivity was nitrogen (N) limited across the forest and, in particular, that N enrichment dramatically increased growth rates and aboveground biomass of stunted Avicennia germinans trees in the interior scrub zone. During the hurricanes, these trees experienced significant defoliation with three to four times greater reduction in leaf area index (LAI) than control trees. Over the long term, the þN scrub trees took four years to recover compared to two years for controls. In the adjacent fringe and transition zones, LAI was reduced by .70%, but with no differences based on zone or fertilization treatment. Despite continued delayed mortality for at least five years after the storms, LAI in the fringe and transition returned to pre-hurricane conditions in two years. Thus, nutrient over-enrichment of the coastal zone will increase the productivity of scrub mangroves, which dominate much of the mangrove landscape in Florida and the Caribbean; however, that benefit is offset by a decrease in their resistance and resilience to hurricane damage that has the potential to destabilize the system.

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Section: Discussionmentioning

confidence: 69%

Nutrient enrichment intensifies hurricane impact in scrub mangrove ecosystems in the Indian River Lagoon, Florida, USA

Feller

Dangremond

Devlin

et al. 2015

Ecology

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“…Therefore, although this species can be globally classified in the Least Concern category (IUCN 2003), their conservation status can be expected to decline rapidly in the future as wetland environments are disappearing at a fast rate both in Africa and the Caribbean Basin because of extensive urban and agricultural developments (Rivera-Monroy et al 2004;Thieme et al 2005;Keddy et al 2009). Indeed, the main difficulty of our study was to find wild populations in the Caribbean and Africa.…”

Section: Systematic and Conservation Implicationsmentioning

confidence: 99%

Phylogenetic analyses of nucleotide sequences confirm a unique plant intercontinental disjunction between tropical Africa, the Caribbean, and the Hawaiian Islands

Namoff

Luke

Jiménez³

et al. 2009

J Plant Res

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Phylogenetic analyses of nucleotide sequences of the internal transcribed spacers and 5.8 regions of the nuclear ribosomal DNA and of the trnH-psbA spacer of the chloroplast genome confirm that the three taxa of the Jacquemontia ovalifolia (Choicy) Hallier f. complex (Convolvulaceae) form a monophyletic group. Levels of nucleotide divergence and morphological differentiation among these taxa support the view that each should be recognized as distinct species. These three species display unique intercontinental disjunction, with one species endemic to Hawaii (Jacquemontia sandwicensis A. Gray.), another restricted to eastern Mexico and the Antilles [Jacquemontia obcordata (Millspaugh) House], and the third confined to East and West Africa (J. ovalifolia). The Caribbean and Hawaiian species are sister taxa and are another example of a biogeographical link between the Caribbean Basin and Polynesia. We provide a brief conservation review of the three taxa based on our collective field work and investigations; it is apparent that J. obcordata is highly threatened and declining in the Caribbean.

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“…Most large-scale freshwater diversions have been implemented in temperate latitudes whereas the number of diversions in tropical latitudes is limited mainly due to their engineering cost (Cloern 2001;Rivera-Monroy et al 2004a;Sklar et al 2005;Junk et al 2006). One of few large freshwater diversion projects in the neotropics was implemented to rehabilitate mangrove wetlands and fisheries in the Ciénaga Grande de Santa Marta (CGSM), the largest coastal lagoon (450 km 2 ) in the Caribbean region of Colombia.…”

Section: Introductionmentioning

confidence: 99%

Salinity and Chlorophyll a as Performance Measures to Rehabilitate a Mangrove-Dominated Deltaic Coastal Region: the Ciénaga Grande de Santa Marta–Pajarales Lagoon Complex, Colombia

Rivera‐Monroy

Twilley

Mancera‐Pineda

et al. 2010

Estuaries and Coasts

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Salinity, water temperature, and chlorophyll a (chl-a) biomass were used as performance measures in the period 1999-2001 to evaluate the effect of a hydrological rehabilitation project in the Ciénaga Grande de Santa Marta (CGSM)-Pajarales lagoon complex, Colombia where freshwater diversions were initiated in 1995 and completed in 1998. The objective of this study was to evaluate how diversions of freshwater into previously hypersaline (>80) environments changed the spatial and temporal distribution of environmental characteristics. Following the diversion, 19 surveys and transects using a flow-through system were surveyed in the CGSM-Pajarales complex to continuously measure selected water quality parameters. Geostatistical analysis indicates that hydrology and salinity regimes and water circulation patterns in the CGSM lagoon are largely controlled by freshwater discharge from the Fundacion, Aracataca, and Sevilla Rivers. Residence times in the CGSM lagoon were similar before (15.5±3.8 days) and E. Barry Moser is deceased. Electronic supplementary materialThe online version of this article (after (14.2±2.0 days) the rehabilitation project and indicated that the system is flushed regularly. In contrast, chl-a biomass was highly variable in the CGSM-Pajarales lagoon complex and not related to discharge patterns. Mean annual chl-a biomass (44-250 μg L −1 ) following the diversion project was similar to values recorded since the 1980s and still remains among the highest reported in coastal systems around the world owing to its unique hydrology regulated by the Magdalena River and Sierra Nevada de Santa Marta watersheds and the high teleconnection to the El Niño Southern Oscillation (ENSO). Our results confirm that the reduction in salinity in the CGSM lagoon and Pajarales complex during 1999-2000 was largely driven by high precipitation (2500 mm) induced by the ENSO-La Niña rather than by the freshwater diversions.

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A Conceptual Framework to Develop Long-Term Ecological Research and Management Objectives in the Wider Caribbean Region

Cited by 59 publications

References 54 publications

Nutrient enrichment intensifies hurricane impact in scrub mangrove ecosystems in the Indian River Lagoon, Florida, USA

Nutrient enrichment intensifies hurricane impact in scrub mangrove ecosystems in the Indian River Lagoon, Florida, USA

Phylogenetic analyses of nucleotide sequences confirm a unique plant intercontinental disjunction between tropical Africa, the Caribbean, and the Hawaiian Islands

Salinity and Chlorophyll a as Performance Measures to Rehabilitate a Mangrove-Dominated Deltaic Coastal Region: the Ciénaga Grande de Santa Marta–Pajarales Lagoon Complex, Colombia

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