Restoration and recovery of hurricane-damaged mangroves using the knickpoint retreat effect and tides as dredging tools

Bashan, Yoav; Moreno, Manuel; Salazar, Bernardo; Alvarez, Leonardo

doi:10.1016/j.jenvman.2012.11.045

Cited by 22 publications

(28 citation statements)

References 41 publications

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“…Three mangrove species are found in this coastal lagoon: the black mangrove, A. germinans; the white mangrove, L. racemosa; and the red mangrove, R. mangle. zonas tropicales, Kovacs et al (2011, 2013) y Flores-de-Santiago et al (2012 encontraron que este patrón no es tan común en regiones subtropicales, donde la clasificación fisiognómica de las tres especies puede ser de tipo cuenca y borde. En otras palabras, en las costas semiáridas subtropicales, las tres especies de mangle pueden estar distribuidas paralelas al canal de inundación (i.e., condición saludable) y cerca de la zona elevada de la marisma (i.e., condición estresada).…”

Section: Study Areaunclassified

“…A pesar de que los mangles tienen una adaptabilidad especial a condiciones de agua salada, su resistencia a la salinidad esta limitada a la frecuencia y duración de las mareas locales (AboEl-Nil 2001). Por tal motivo, en ambientes subtropicales, el hidroperiodo, que incluye la duración, frecuencia y área de inundación, es el factor más importante en afectar el crecimiento del mangle , Bashan et al 2013. El objetivo del presente estudio fue investigar el crecimiento, la supervivencia y la tolerancia de tres especies de mangle subtropical de las costas mexicanas del Pacífico expuestos a diferentes periodos de inundación controlados por cambios en el nivel del mar.…”

Section: Study Areaunclassified

“…Despite the special adaptability exhibited by mangroves to saline conditions, their tolerance is limited to the frequency and duration of the local tides (AboEl-Nil 2001). Therefore, in subtropical environments, the hydroperiod, which includes flood duration, frequency, and area, is the main factor affecting mangrove growth , Bashan et al 2013. The objective of the present study was to study the growth, survival, and tolerance of three subtropical mangrove species from the Pacific coast of Mexico exposed to different periods of tidal inundation.…”

Section: Introductionmentioning

confidence: 98%

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Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

2015

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ABSTRACT. The effect of hydroperiod on the survival and growth of Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle seedlings under experimental conditions was investigated using a simulated tidal system. Seedlings of the three mangrove species were grown at four inundation levels. All levels were flooded every 12 h in order to create a simulated semi-diurnal tide cycle (i.e., two high tides and two low tides per day). Based on the hydroperiod for the study area, level 1 was flooded for 10 h, level 2 for 6 h, level 3 for 2 h, and level 4 for 6 min. After 570 days, the results showed that R. mangle presented the highest growth at level 1 and the lowest growth at level 4. The optimal growth of L. racemosa occurred at levels 2 and 3, but all the seedlings died at level 1, indicating that this species is highly sensitive to tidal regimes. Compared to L. racemosa and R. mangle, A. germinans had a moderate growth rate at all four levels. Mangrove growth differentiations were more prominent at levels 1 and 3, where the three species showed very different growth patterns. Studies of optimal growth using hydroperiod experiments are important in order to understand the physiological responses of mangrove forests to a possible sea level rise in the next decades, especially in subtropical environments where they are constantly exposed to stress.Key words: hydroperiod, Avicennia germinans, Laguncularia racemosa, Rhizophora mangle. RESUMEN.Se investigó el efecto del hidroperiodo en el crecimiento y supervivencia de plántulas de Avicennia germinans, Laguncularia racemosa y Rhizophora mangle bajo condiciones experimentales por medio de un simulador de mareas. Se colocaron plántulas de las tres especies a cuatro diferentes niveles de inundación durante 12 h para simular un ciclo de marea semidiurna (i.e., dos mareas altas y dos mareas bajas por día). Con base en el hidroperiodo de la zona de estudio, el nivel 1 estuvo inundado por 10 h, el nivel 2 por 6 h, el nivel 3 por 2 h y el nivel 4 por 6 min. Después de 570 días, los resultados mostraron que R. mangle presentó el mayor crecimiento en el nivel 1 y el menor crecimiento en el nivel 4. El crecimiento óptimo de L. racemosa fue en los niveles intermedios 2 y 3, pero todas las plántulas murieron en el nivel 1, lo cual nos indica que esta especie es altamente sensible a periodos prolongados de inundación. Comparado con L. racemosa y R. mangle, A. germinans presentó un crecimiento moderado en los cuatro niveles. La diferencia en el crecimiento de los manglares fue más prominente en los niveles 1 y 3, donde las tres especies mostraron patrones muy diferentes. Los estudios sobre el crecimiento óptimo mediante simuladores de marea son importantes para entender la respuesta fisiológica de los bosques de mangle a un posible incremento en el nivel del mar en las próximas décadas, especialmente en ambientes subtropicales donde el nivel de estrés es alto.

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Section: Study Areaunclassified

Section: Introductionmentioning

confidence: 98%

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Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

2015

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“…One was developed in 2004 because of adverse impacts of a hurricane on the mangrove community "El Mogote." [36]. The other restoration project was carried out in 2013 in the mangrove community "Enfermería" by the Department of Ecology and Environment of the State Government of Baja California Sur, along with other academic institutions such as CIBNOR and local volunteers.…”

Section: Impactmentioning

confidence: 99%

The Use of the Dspir Framework to Estimate Impacts of Urbanization on Mangroves: A Case Study From La Paz, Baja California Sur, Mexico

Ávila-Flores

Hinojosa‐Arango²,

Juárez-Mancilla

et al. 2017

WIT Transactions on Ecology and the Environment

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The mangrove ecosystem is integrated mainly by halophytes plants that grow on coastal zones of tropical and subtropical regions. This ecosystem provides direct and indirect services for human wellbeing such as food, wood, climate regulation, natural hazard protection, recreation and aesthetic values. However, academic research indicates that more than 35% of world's mangrove coverage has been lost in the past three decades. The primary drivers of change of cover lost are aquaculture activities and development of urban infrastructure. The objective of this work was to conduct an exploratory assessment of the impacts of urbanization on mangrove communities located in the city of La Paz, Mexico using the Driver-Pressure-State-Impact-Response framework (DPSIR). The assessment was complemented by a Delphi survey to incorporate information obtained from experts and stakeholders. The results indicated that the most important pressing factors on mangrove communities were: tourism, urban growth and waste. However, the data on mangrove cover and conservation status show that the overall situation of mangroves of mangroves in La Paz is "barely adequate," with communities showing positive and adverse conditions. It is estimated that mangrove communities classified as "Vulnerable" and "Endangered" probably do not generate the same ecosystem services as mangroves classified under the "Near Threatened" and "Least Concern" categories. Protection actions as protected areas, environmental laws, and ecological restoration have helped in the conservation of mangroves in the study area. This work concludes that DPSIR framework is a handy tool to analyze in the first instance the conditions of the mangroves and may be replicable in other regions that have this ecosystem, even in places with little scientific research.

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“…Many researchers are working on this subject (see e.g. Boswell et al 1999;Sisson et al 2006;de Melo Mendes & Pericchi 2009;Obeysekera et al 2011;Bashan et al 2013;Delphin et al 2013). The approaches used can be typically divided into two main groups, one analytical and another statistical (see e.g.…”

Section: Introductionmentioning

confidence: 99%

Tornadoes and related damage costs: statistical modelling with a semi-Markov approach

D’Amico

Manca

Corini

et al. 2016

Geomatics, Natural Hazards and Risk

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We propose a statistical approach to modelling for predicting and simulating occurrences of tornadoes and accumulated cost distributions over a time interval. This is achieved by modelling the tornado intensity, measured with the Fujita scale, as a stochastic process. Since the Fujita scale divides tornado intensity into six states, it is possible to model the tornado intensity by using Markov and semi-Markov models. We demonstrate that the semi-Markov approach is able to reproduce the duration effect that is detected in tornado occurrence. The superiority of the semi-Markov model as compared to the Markov chain model is also affirmed by means of a statistical test of hypothesis. As an application, we compute the expected value and the variance of the costs generated by the tornadoes over a given time interval in a given area. The paper contributes to the literature by demonstrating that semi-Markov models represent an effective tool for physical analysis of tornadoes as well as for the estimation of the economic damages to human things.

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Restoration and recovery of hurricane-damaged mangroves using the knickpoint retreat effect and tides as dredging tools

Cited by 22 publications

References 41 publications

Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

The Use of the Dspir Framework to Estimate Impacts of Urbanization on Mangroves: A Case Study From La Paz, Baja California Sur, Mexico

Tornadoes and related damage costs: statistical modelling with a semi-Markov approach

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