Bibliografías temáticas / Mangrove ecology

Literatura académica sobre el tema "Mangrove ecology"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 30 de julio de 2024

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Artículos de revistas sobre el tema "Mangrove ecology"

Tai, Akira, Akihiro Hashimoto, Takuya Oba, Kazuki Kawai, Kazuaki Otsuki, Hiromitsu Nagasaka y Tomonori Saita. "Growth of Mangrove Forests and the Influence on Flood Disaster at Amami Oshima Island, Japan". Journal of Disaster Research 10, n.º 3 (1 de junio de 2015): 486–94. http://dx.doi.org/10.20965/jdr.2015.p0486.

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“Mangrove” is the generic name for plants growing on tropical and subtropical tidal flats. The mangrove is used for many things, including disaster protecting land from high waves and tides and tsunamis, cleaning rivers and drainage containing soil and sand, and providing a variety of organisms with living space. Climate change and rising sea levels are threatening the future of the mangrove. Developing effective ways to conserve mangroves is thus needed, but more must be known about how the mangrove’s ecology and how it develops. It has been pointed out, for example, that mangroves increased flooding by the Sumiyo River in Amami Oshima. We studied ways to develop the mangrove at the Sumiyo River mouth in Amami Oshima and its influence in local flooding, finding that the current mangrove forest had little influence on flooding and that sediment deposition accelerating in Sumiyo Bay due to a sea dike could enlarge the mangrove forest in future.

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Ati, Restu Nur Afi, Terry L. Kepel, Mariska A. Kusumaningtyas, Nasir Sudirman, Hadiwijaya L. Salim, Tubagus Solihuddin, Aida Heriati y Eva Mustikasari. "Mangrove Bio-Ecology for Rehabilitation Purposes in Pandeglang". IOP Conference Series: Earth and Environmental Science 1148, n.º 1 (1 de marzo de 2023): 012045. http://dx.doi.org/10.1088/1755-1315/1148/1/012045.

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Abstract This study aims to determine the bio-ecological condition of mangroves that could be considered for the rehabilitation planning process by the government or any other entities. This study was conducted in Ciseukeut-Panimbang, Pandeglang. Eight mangrove species were found, which belongs to four families of Avicenniaceae, Myrsinaceae, Euphorbiaceae, and Rhizophoraceae. The density of mangrove species in the study site ranges from 113-744 ind/ha. The results of the diversity index value showed that mangrove vegetation was in the low category with a range of 0.04 – 0.16. This value indicates the presence of environmental pressures, so the mangrove ecosystem is considered unstable. The dominance index belongs to the low category with a range of 0.03 - 0.23. The uniformity index value is also low at 0.01-0.08. The value shows that the mangrove ecosystem in Ciseukeut Panimbang Village is experiencing pressure, or its condition has decreased. Efforts to rehabilitate mangroves in Panimbang regency can be done by planting from the dominant mangroves Avicennia sp and Rhizophora sp. These species play a very important role in Panimbang, its important value index was 90,66% and 56,77%. The timing of planting propagules in Pandeglang area should be carried out in the eastern season so that the propagule can grow optimally and safely inundate from tides that occur in the western season with a height of up to 1 m.

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Raju Aluri, Jacob Solomon. "Reproductive Ecology of Mangrove Flora: Conservation and Management". Transylvanian Review of Systematical and Ecological Research 15, n.º 2 (1 de diciembre de 2013): 133–84. http://dx.doi.org/10.2478/trser-2013-0026.

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ABSTRACT Mangroves are dynamic and unique inter-tidal ecosystems, common in tropical and subtropical coastal environments. They are among the world’s most productive ecosystems and are important in protecting coasts from erosion by fierce tides, in promoting the diversity of marine organisms and fisheries by contributing a quantity of food and providing favourable habitats for animals. These economic uses of mangroves indicate that they play an important role in the lives and economies in the coastal regions of different countries. Mangrove forests are under immense threat worldwide due to their multiple economic uses and alterations of freshwater inflows by various upstream activities in catchment areas. Mangrove plants with unique adaptations play a crucial role in sustaining life in mangrove forests. Their reproductive biology is central to understanding the structural and functional components of mangrove forests. The success of sexual reproduction and subsequent population expansion in mangrove plants is linked to flowering timings, pollinators and tidal currents. Viviparous and cryptoviviparous plants are true mangroves while non-viviparous ones are mangrove associates. The dispersal propagule is seedling in viviparous and non-viviparous plants while it is seed in nonviviparous plants. In this study, viviparous and crypto-viviparous species were included for study. These species are self-compatible, self-pollinating and also cross-pollinating; such a breeding system is a requirement for the success of sexual reproduction and subsequent build up and expansion of population. They are entomophilous in the study region. The viviparous plants include Ceriops tagal, C. decandra, Rhizophora apiculata, R. mucronata, Bruguiera gymnorrhiza and B. cylindrica. The non-viviparous plants include Avicennia alba, A. marina, A. officinalis, Aegiceras corniculatum and Aegialitis rotundifolia. Sexual reproduction and regeneration events are annual in these plants and are dependent on local insects, tidal currents and nutrient content in estuarine environment. In recent times, erratic and insufficient rainfall together with industrial pollutants released into rivers is causing negative effects on the growth, development and regeneration of mangrove flora. In effect, there is a gradual decrease in mangrove cover. Added to this is continuous exploitation of mangrove plants for fuel wood, creation of shelters for cattle and changes for industrial establishments and aquaculture development in estuarine regions. As a consequence, the existing mangrove cover is struggling to survive and also not in a position to support local needs and provide livelihood opportunities through fishery resources. Further, reduced mangrove cover is showing catastrophic effects on fishing communities who live along the shore line during the period of cyclonic surges and tsunami events.

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Padmakumar, Vidya y Murugan S. "Mangrove ecology and species distribution along the Gorai Creek of Mumbai coast, Maharashtra, India". International Journal of Forest, Animal And Fisheries Research 6, n.º 4 (2022): 22–26. http://dx.doi.org/10.22161/ijfaf.6.4.4.

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The extensive mangrove forest of Gorai Creek, Mumbai coast, has recently seen substantial deterioration. The results of a study on mangrove diversity conducted in Gorai Creek on the Mumbai coast from June 2017 to May 2018 are presented here. During the course of the study, twelve species of mangroves from five families and eight genera were identified in each of the three study locations along the creek. Avicennia marina accounted for 13.44% of the Gorai creek marshes, confirming its predominance. Sonneratia alba, Avicennia officinalis, Rhizophora apiculata, Bruguiera cylindrica, Kandelia candel, and Acanthus ilicifolius are among the mangrove species found in the estuarine embayment, with other species strewn around. A diverse range of species, including endangered migratory birds and herpetofauna, can be found in these mangrove environments. Mangroves have been observed to have narrowed in density with time, and it is critical to begin conservation efforts as speedily as humanly possible.

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Payne, Nicholas Leslie y Bronwyn May Gillanders. "Assemblages of fish along a mangrove - mudflat gradient in temperate Australia". Marine and Freshwater Research 60, n.º 1 (2009): 1. http://dx.doi.org/10.1071/mf08124.

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Mangroves are considered to support rich assemblages of fish and invertebrates. Fishes inhabiting mangrove habitats and at various distances from mangroves across mudflats were sampled to: (1) compare fish assemblages between habitats; and (2) determine the influence of mangrove proximity on fish abundance and diversity in three southern Australian estuaries between November 2005 and January 2006. Based on their distribution, fish species were classified as mangrove residents, mudflat residents, generalists or rare species. The assemblage structure of fish in mangroves differed from assemblages 500 m away; however, neither total abundance nor species richness differed significantly between mangroves and mudflats. Mangrove residents and Aldrichetta forsteri (yellow-eyed mullet) displayed strong associations with mangrove habitats, whereas mudflat residents were associated with mudflat habitats. No other fish groups or individual species occurred in higher abundances in either habitat. Total fish abundance, mangrove residents and A. forsteri were positively correlated with pneumatophore density, indicating that the structural complexity of the mangroves might influence the distributions of certain fish species. The current study demonstrated that mangrove habitats in temperate Australia support no greater abundance or diversity of fish than adjacent mudflat habitats and that mangrove proximity does not influence fish distribution at a habitat scale.

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P, Rohini y Ayona Jayadev. "Impacts of Microplastics on Mangroves - A Review". International Journal of Research and Review 10, n.º 10 (9 de octubre de 2023): 22–27. http://dx.doi.org/10.52403/ijrr.20231004.

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Microplastics are an escalating pollutant that poses risks to the health of both marine and terrestrial environments. These tiny plastic particles have multiple avenues to infiltrate marine ecosystems, including mangrove forests. Notably, mangrove areas exhibit distinct ecological characteristics, leading to varying levels of microplastic contamination compared to other coastal locations. The unique way in which mangrove plants crisscross in the water creates an efficient filtering system, effectively reducing wave energy and turbulence. This, in turn, creates an environment where plastics are more likely to accumulate. Additionally, this accumulation can trigger the production of secondary microplastics through physical processes. Consequently, microplastic pollution is notably high along mangrove zones, impacting mangrove ecology both directly and indirectly. Research studies have demonstrated that varying degrees of microplastic absorption and subsequent translocation in plants can affect plant morphology, physiology, biochemistry, and genetic traits. An analysis of mangrove health has indicated that the presence of microplastic pollution has led to deteriorating or unsatisfactory conditions in all mangrove vegetation. This review is primarily focused on elucidating the impact of microplastics on mangroves. Keywords: Mangroves Ecosystem, Microplastics, Mangroves, Pollution impact.

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Nuraeni, Eni y Yayan Wahyu C. Kusum. "The role of community-based tourism for mangroves conservation in Banten, Indonesia". Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 13, n.º 4 (5 de diciembre de 2023): 606–12. http://dx.doi.org/10.29244/jpsl.13.4.606-612.

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Mangroves provide multiple ecological functions such as connectors and balancers of land and sea ecosystems. The presence of mangroves in coastal areas is very important for reducing the impact of tsunamis and tidal flooding. The role of local communities in the form of community-based tourism models, in conserving mangrove forests has not been extensively studied. This study aims to fill the gap in evaluating local communities’ involvement, particularly under the tourism-based communities’ model, in conserving mangroves and, at the same time, gaining economic benefits. This study was conducted in the mangrove villages of “Patikang,” Citeureup Village, and Pandeglang Regency. This study applied mixed methods that combine both quantitative and qualitative approaches. Primary data were obtained directly from the local community through using questionnaires, interviews, and field observations. Secondary data collection was carried out through a literature review of mangrove conservation and community development in coastal areas. Our study found that local community-based tourism namely “Putri Gundul” played a very important role in increasing community awareness to conserve mangrove forests. The community has gained more knowledge on the biology of mangrove species and the ecology of mangroves for mangrove restoration. Furthermore, the involvement of local communities in mangrove conservation and restoration can increase the economy of communities by producing various products from mangroves.

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PURWANTI, Pudji, Mochammad FATTAH, Vika Annisa QURRATA y Bagus Shandy NARMADITYA. "AN INSTITUTIONAL REINFORCEMENT MODEL FOR THE PROTECTION OF MANGROVES SUSTAINABLE ECOTOURISM IN INDONESIA". GeoJournal of Tourism and Geosites 35, n.º 2 (30 de junio de 2021): 471–79. http://dx.doi.org/10.30892/gtg.35227-674.

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This study aims at examining the sustainability of mangrove ecotourism at Cengkrong Mangroves Ecotourism in Indonesia. A quantitative approach was adopted to capture the complexity of the phenomenon. The study was conducted in an area with most mangroves in Indonesia, including Cengkrong Ecotourism in Trenggalek, East Java. Sustainability is achieved when each stakeholder makes a positive contribution to others in ecology, economy, social, institutional and law enforcement, and technology. Using multi-dimensional scaling and Monte Carlo approach, the findings of this study indicate that Cengkrong mangrove ecotourism is classified as “sustainable” (76.20%). The highest dimension is ecology due to the minimum level of pollution in the area. Even Cengkrong beach mangrove is a tourist destination which is potentially polluted by the tourist; however, the area is not densely populated. Nevertheless, amongst the other indicator, social is the lowest (67.95%).

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Limmon, Gino V., Eelco Waardenburg, Wouter Lengkeek, Peter Vodegel, Krisye y Yunita A. Noya. "RESTORASI EKOSISTEM MANGROVE PADA MEDIA BIODEGRADABLE DI PESISIR DESA WAAI". MESTAKA: Jurnal Pengabdian Kepada Masyarakat 2, n.º 2 (24 de abril de 2023): 99–103. http://dx.doi.org/10.58184/mestaka.v2i2.39.

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Mangroves are plants that live on the coast and are affected by sea tides. Mangroves play an important role in estuary areas, namely the border between seawater and fresh water because they have ecological, economic and chemical functions to support the life of organisms. Mangrove ecosystems can experience threats from both natural and human factors. Human activities that cause damage to mangroves are due to a lack of public awareness regarding the importance of mangrove ecosystems for organisms. This is the condition that occurs in the mangrove ecosystem in Waai Village, therefore, it is necessary to restore the mangrove ecosystem. Mangrove ecosystem restoration uses one of the potential media, namely BESE-Element, which is a biodegradable material. Community service is carried out in collaboration with the Pattimura University Maritime Center and Wardenburg Ecology International. The community service activities were carried out for two days, 7-8 February 2023. The result of the activity was that mangrove ecosystem restoration was carried out in semi-enclosed areas using 10 BESE-Element. The types of mangrove species planted were Sonneratia alba, Rhizophora stylosa, and Ceriops tagal. Around BESE-Elements planted seedlings and mangrove propagules as a control for mangroves in BESE-Elements. This restoration activity seems to be applicable not only in Waai Village but also in other areas that have experienced degradation of the mangrove ecosystem.

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Schmitz, Hermes J., Paulo R. P. Hofmann y Vera L. S. Valente. "Assemblages of drosophilids (Diptera, Drosophilidae) in mangrove forests: community ecology and species diversity". Iheringia. Série Zoologia 100, n.º 2 (junio de 2010): 133–40. http://dx.doi.org/10.1590/s0073-47212010000200008.

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Brazilian fauna of drosophilids has been researched in various ecosystems, but those in mangrove forests remain overlooked in Brazil and elsewhere. The present study attempts to characterise the assemblages of drosophilids of this environment, based on 28 collections taken in three mangrove areas in Santa Catarina Island, southern Brazil. The three mangroves surveyed were different in their surroundings, which varied from highly urbanised areas to conservation areas with natural vegetation. Overall, 69 species were collected, and no remarkable difference was detected in species composition and abundances or in the richness, evenness and heterogeneity between sites. The species abundance distribution observed fitted to a theoretical lognormal distribution in the three mangroves. The species richness scored and the performance of the species richness estimators showed an unexpectedly high diversity, considering the very low floristic diversity and the harsh conditions of the environment. Regarding species composition and abundances, the drosophilid mangrove assemblages were shown to be more similar to those found in open environments, with a marked dominance of exotic species. Finally, considering the apparent lack of feeding and breeding sites, we suggest that mangrove forests are acting as sink habitats for the drosophilids populations.

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Más fuentes

Tesis sobre el tema "Mangrove ecology"

Tong, Yee-fun Pauline. "Herbivory on the mangrove Kandelia candel (L.) druce in Hong Kong /". Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20668211.

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Soliman, Nabil Zaki Gadalla. "Nutrient dynamics at Matapouri Estuary, Northern New Zealand thesis submitted in (partial) fulfilment of the degree of Master of Applied Science, Auckland University of Technology, June 2004". Full thesis. Abstract, 2004.

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Yando, Erik. "Dispersal, Establishment, and Influence of Black Mangrove ( Avicennia germinans) at the Salt Marsh-Mangrove Ecotone". Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10814132.

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Interactions between species are dynamic and are likely to shift with changes in species ranges due to climate change. With the expansion of new species into incumbent ecosystems a variety of abiotic and biotic factors shape the rate, pattern, and method of invasion. This dissertation utilizes one such boundary of transition, the salt marsh-mangrove ecotone, located in the northern Gulf of Mexico. This dynamic coastal wetland has recently seen the expansion of sub-tropical mangrove species into a previously salt marsh dominated system. This collection of works provides pointed case studies seeking to understand local and patch scale dispersal dynamics, expansion, recruitment, growth, and survival rates along an elevational gradient, and understanding interactions both above- and belowground between mature mangroves and the surround salt marsh. We find that dispersal is overwhelmingly dominated by propagule export, that black mangrove and smooth cordgrass differ in their ability to provide structural provisioning in the short term after restoration, and that mature mangroves have much greater belowground extent than aboveground. By better understanding species-specific interactions at the salt marsh-mangrove ecotone, a greater understanding of future expansion rates can be gained.

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Di, Nitto Diana. "To go with the flow: a field and modelling approach of hydrochorous mangrove propagule dispersal". Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210046.

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Mangrove ecosystems thrive in (sub)tropical, intertidal areas where adaptations

like vivipary and the hydrochorous dispersal of propagules become an absolute

necessity. As propagule dispersal and early growth allow for the replenishment of

existing stands and colonization of new habitats, many authors recognize the

importance of these stages in structuring mangrove populations and communities.

However, when it comes to the actual propagule dispersal and recruitment

mechanisms, there is an apparent lacuna in the current understanding of

mangrove ecology. The period between the mature propagule falling from the

parental mangrove tree and the early growth of the established seedling, under

various possible circumstances, remains in the dark. In this study we focus on this

particular period by investigating both the places where these propagules end up

as the pathways their dispersal units follow. And we go one step further.

Mangrove forests are being destroyed worldwide at a threatening pace despite

their tremendous asset to coastal human communities and associated biological

species. The effect of human-induced (cutting and mangrove conversion to

aquaculture ponds) as well as indirectly and/or ‘naturally’ evolving disturbances

(sea level rise) on propagule hydrochory occupies an important place in this study.

Dispersal of water-buoyant propagules of the family Rhizophoraceae and

Acanthaceae (now including the Avicenniaceae) was studied in Gazi Bay (Kenya),

Galle and the Pambala-Chilaw Lagoon Complex (Sri Lanka). The study sites

differ both in tidal regime and vegetation structure, covering an interesting variety

of ecological settings to examine propagule dispersal. Field data and experiments

ranging from micro/ mesotopographical measurements and successive propagule

counts to hydrodynamic and propagule dispersal experiments were collected or

executed in situ.

Two main methodological approaches were employed. Firstly, the question on

mechanisms of propagule recruitment was addressed by statistically investigating

the effect of microtopography, top soil texture and above-ground-root complexes on

the stranding and self-planting of propagules (Chapter 2&3). Afterwards,

suitability maps were created using Geographical Information Systems (GIS) to

assess whether a particular mangrove stand has the ability to succesfully

rejuvenate. Furthermore, the effect of degradation (tree cutting) (Chapter 2&3),

sea level rise (Chapter 2&4) and microtopography-altering burrowing activities of

the mangrove mud lobster Thalassina anomala (Chapter 3), was incoporated in the

GIS-analyses. Secondly, the combined set-up of hydrodynamic modelling and

ecological dispersal modelling was developed to simulate propagule dispersal

pathways influenced by dispersal vectors (tidal flow, fresh water discharge, wind),

trapping agents (retention by vegetation or aerial root complexes) and seed

characteristics (buoyancy, obligated dispersal period) (Chapter 5&6). This type of

approach provided the possibility to explore propagule dispersal within its

ecological context, but was also applied to an implication of shrimp pond area

restoration (Pambala-Chilaw Lagoon Complex, Sri Lanka) (Chapter 5) and to

evaluate changes in propagule dispersal when sea level rises (Gazi Bay, Kenya)

(Chapter 6).

The main findings regarding propagule recruitment indicate that propagules are

not distributed equally or randomly within a mangrove stand, yet species-specific

distribution for anchorage occurs. Characteristics of the environment

(microtopography, top soil texture and above-ground root complex) influence

propagule recruitment in a way that complex root systems (e.g. pencil roots and

prop roots) facilitate the entanglement of dispersal units and a more compact soil

texture (like clay and silt) and a predominant flat topography creates suitable

areas for stranding and self-planting of propagules. This combines effects of

existing vegetation and abiotic factors on mangrove propagule establishment.

Since propagule dispersal is not solely determined by species-specific propagule

characteristics (e.g. buoyancy, longevity, etc.), I emphasize that propagule sorting

by hydrochory has to be viewed within its ecological context. Propagule retention

by vegetation and wind as a dispersal vector, deserve a prominent role in studies

on propagule dispersal. The significance of dense vegetation obstructing long

distance dispersal (LDD in its definition of this work), mainly in inner mangrove

zones, supports our main finding that propagule dispersal is largely a short

distance phenomenon. ‘Largely’ is here understood as quantitatively, not

excluding epic colonization events of rare but important nature.

In accordance with the Tidal Sorting Hypothesis (TSH) of Rabinowitz (1978a),

smaller, oval-shaped propagules were found to disperse over larger distances than

bigger, torpedo-shaped propagules. We can however not fully support the TSH

because (1) these differences are no longer valid when comparing between torpedoshaped

propagules of different sizes and (2) propagule dispersal is not always

directed towards areas more inland, but can be strongly concentrated towards the

edges of lagoons and channels

Anthropogenic pressure on mangrove ecosystems, more specifically clear-felling or

mangrove conversion to aquaculture ponds, imposes limitations on propagule

recruitment due to reduced propagule availability and a decrease in suitable

stranding areas where the architecture of certain root complexes, like prop roots

and pencil roots, function as propagule traps. These types of pressure appear to

have more severe consequences on propagule dispersal than the effect of sea level

rise on mangroves. Mangrove forests, which are not situated in an obviously

vulnerable setting, can be resilient to a relative rise in sea level if a landward shift

of vegetation assemblages and successful early colonization is not obstructed by

human-induced pressures. Also, and this renders mangrove forests vulnerable in

spite of their intrinsic resilience, when the ‘capital’ of forest is severely reduced or

impoverished as happens extensively worldwide, the ‘interest’ on this capital,

understood as propagule availability, delivery and trapping, will not allow them to

efficiently cope with sea level rise, putting sustainability of mangrove ecosystem

services and goods at risk.

In a larger framework of mangrove vegetation dynamics, knowledge on propagule

dispersal will benefit management strategies for the conservation of mangroves

worldwide, besides its fundamental interest to fully fathom the ecology of this

particular marine-terrestrial ecotone formation.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished

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Warren, Janice H. (Janice Helene). "Behavioural ecology of crabs in temperate mangrove swamps". Thesis, The University of Sydney, 1987. https://hdl.handle.net/2123/26768.

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Patterns of distribution of crabs inhabiting burrows in three temperate mangrove swamps near Sydney, New South Wales, were described. Heloeoius cordiformis (an ocypodid) did not exhibit a consistent pattern of distribution among three tidal zones, but was always associated with well— drained mounds of substratum within zones. Paragrapsus laevis (a grapsid) tended to be most abundant in the lower two zones on the shore and usually inhabited burrows in the moist or submerged flats between mounds. Sesarma erythrodactyla (a grapsid) was distributed fairly evenly among the three tidal zones and also between mounds and flats. H. cordiformis hibernated in burrows from June through August or September. Overall abundances also varied seasonally, but trends were inconsistent among the three swamps sampled.

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Lee, Hoi-ki. "The feeding ecology of Littoraria species in Hong Kong mangroves /". Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B22956293.

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Young, Ruth Anne. "Biotic Responses to Urbanisation in Mangrove Dominated Estuaries". Thesis, Griffith University, 2009. http://hdl.handle.net/10072/367651.

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Increasing urbanisation of coastal areas is placing unprecedented pressure on estuarine environments. Impacts associated with urbanisation can alter the health of estuarine ecosystems, reducing their capacity to provide valuable ecosystem services. In order protect these environments, relationships between estuarine health and urbanisation should be understood and applied to sustainable urban planning in coastal areas. Responses measured in estuarine biota offer much potential for providing pragmatic and sensitive means for the detection of urban impacts in estuaries. I assessed the responses of estuarine biota to increasing levels of urbanisation in the rapidly developing coastal region of southeast Queensland, Australia. I measured a suite of biotic indicators, namely: the δ15N of mangroves and crabs as a tracer for urban N sources, sediment chlorophyll a concentration (Chl a) as an estimate of the biomass of microphytobenthos (MPB), and a condition index in crabs, measured as the hepatosomatic index (HI). Urbanisation was estimated as the percentage of catchment covered by impervious surfaces (impervious cover, IC). Increases in impervious surfaces such as roads, footpaths and car parks are closely linked to urbanisation. These surfaces concentrate and convey pollutants generated from urban activities into coastal waterways and estuaries, thus making IC a useful indicator of urban impact.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Indarjani. "Infaunal communities in South Australian temperate mangrove systems". Connect to this title online, 2003. http://hdl.handle.net/2440/37950.

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South Australian mangroves consist of only one single species Avicennia marina (Fosk.) Vierh.var australasica (Walp) Moldenke, 1960. They are distributed discontinuously within St. Vincent Gulf and Spencer Gulf and provide significant valuable habitat both in economical and ecological terms. The Fisheries Act 1971-1982 protected the existence of mangroves and the Harbour Act 1936-1981 controlled removal of mangrove areas in coastal development. To date very few ecological studies have been conducted in the South Australian mangroves, particularly on the infaunal organisms that have an important role in maintaining the ecological dynamic within the estuaries systems. As this is the first study on infaunal mangrove communities in the inverse estuaries of South Australia, there was no prior data for ecological comparison. The study was conducted at three mangroves location (Garden Island, Middle Beach and Saint Kilda) close to Adelaide in May 2000 and 2001. Overall the study has reported that the infaunal mangrove assemblages of South Australian mangroves were comparable to other temperate mangroves. The infaunal communities were characterised by lower diversity and abundance compared to the tropical or subtropical mangroves. The infaunal zonation related to the tidal gradient and habitat variation was detected. Most infauna organisms occupied the surface layers and substantially decreased towards the deeper layers. The study also suggested that sediment structure of mangrove systems were complex and infaunal communities responded differently to the change of environmental conditions both in small scale and larger scale. Thus, assessing the infaunal communities structure in mangrove systems should be based on ecological characteristics rather than geographical positions. The examination of dominant polychaetes families showed that different species have different responses to the environmental cues within mangrove systems. The study did not find that any polychaete species was restricted to mangroves only as they all were also found in the habitat adjacent mangrove forest.
Thesis (Ph.D.)--School of Earth and Environmental Sciences, 2003.

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Zhou, Hong. "Meiofaunal community structure and dynamics in a Hong Kong mangrove /". Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B2331669x.

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Rajkaran, Anusha. "A status assessment of mangrove forests in South Africa and the utilization of mangroves at Mngazana Estuary". Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1547.

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In South Africa mangrove forests are located in estuaries from Kosi Bay in KwaZulu-Natal (KZN) to Nahoon Estuary in the Eastern Cape. The aims of this study were to determine the present state of mangroves in KwaZulu-Natal, by assessing the current population structure, the changes in cover over time and associated anthropogenic pressures. A second objective of this study was to determine the effect of harvesting on the population structure and sediment characteristics in the Mngazana mangrove forest. To determine if harvesting was sustainable at Mngazana Estuary; the growth and mortality rates and associated growth conditions were measured. Finally by using population modelling sustainable harvesting limits were determined by predicting the change in population structure over time. The study focussed on the KwaZulu-Natal province as a fairly recent study addressed mangrove distribution and status in the Eastern Cape Province. A historical assessment of all mangroves forests in KwaZulu-Natal (KZN) revealed that the potential threats to mangroves in South Africa include; wood harvesting, altered water flow patterns coupled with salinity changes, prolonged closed-mouth conditions and subsequent changes to the intertidal habitat. As a result mangroves were completely lost from eleven estuaries in KZN between 1982 and 1999 and a further two estuaries by 2006. Mangroves only occurred in those estuaries where the mouth was open for more than 56 percent of the time with the exception of St Lucia, where the mouth has been closed for longer but the mangrove communities have persisted because the roots of the trees were not submerged. All mangrove forests in KZN were regenerating in terms of population structure as they had reverse J-shaped population curves as well as high adult: seedling ratios. Kosi Bay and Mhlathuze Estuary were two of the larger forests that showed signs of harvesting (presence of tree or branch stumps), but the greatest threat to smaller estuaries seems to be altered water flow patterns due to freshwater abstraction in the catchments and the change of land use from natural vegetation to sugar-cane plantations. These threats affect the hydrology of estuaries and the sediment characteristics (particle size, redox, pH, salinity, temperature) of the mangrove forests. The environmental conditions under which the mangrove forests currently exist were determined for five species. Lumnitzera racemosa and Ceriops tagal exhibited a narrow range of conditions as these species are only found at Kosi Bay, while Avicennia marina, Bruguiera gymnorrhiza and Rhizophora mucronata were found to exist under a wider range of conditions. The growth rate and response to environmental conditions of the three dominant species were important to determine as these species are impacted by harvesting. Mangrove growth rates were measured at Mngazana Estuary in the Eastern Cape, the third largest mangrove forest in South Africa. Areas of this estuary where mangroves harvesting has occurred, show significant differences in sediment characteristics as well as changes in population structure in harvested compared to non harvested sites. The growth rate (in terms of height) of Avicennia marina individuals increased from seedlings (0.31 cm month-1) to adults (1.2 cm month-1), while the growth of Bruguiera gymnorrhiza stabilised from a height of 150 cm at 0.65 cm month-1. The growth of Rhizophora mucronata peaked at 0.72 cm month-1 (height 151-250 cm) and then decreased to 0.4 cm month-1 for taller individuals. Increases in diameter at breast height (DBH) ranged between 0.7 and 2.3 mm month-1 for all species. Some environmental variables were found to be important drivers of growth and mortality of individuals less then 150 cm. A decrease in sediment pH significantly increased the mortality of Avicennia marina seedlings (0-50 cm) (r = - 0.71, p<0.05) and significantly decreased the growth of Rhizophora mucronata and Bruguiera gymnorrhiza seedlings (r = -0.8, r = 0.52 – p < 0.05 respectively). At Mngazana Estuary, mortality of this species showed a positive correlation with sediment moisture content indicating that this species prefers drier conditions. The density of Rhizophora mucronata was significantly correlated to porewater temperature in Northern KZN as was the growth of adult (>300 cm) Rhizophora trees at Mngazana Estuary. Mortality of Avicennia marina individuals (51-150 cm) was related to tree density indicating intraspecific competition and self thinning. Selective harvesting of particular size classes of Rhizophora mucronata was recorded when comparing length of harvested poles (~301 cm) and the size class distribution of individuals. Taking into account the differences in growth rate for each size class for this species it will take approximately 13 years to attain a height of 390 cm which is the height at which trees are selected for harvesting at this estuary. This is 2.6 times slower than those individuals growing in Kenya. The feasibility of harvesting is dependent on the growth rate of younger size classes to replace harvested trees as well as the rate of natural recruitment feeding into the population. Different harvesting intensity scenarios tested within a matrix model framework showed that limits should be set at 5 percent trees ha-1 year-1 to maintain seedling density at > 5 000 ha-1 for R. mucronata. However harvesting of Bruguiera gymnorrhiza should be stopped due to the low density of this species at Mngazana Estuary. Harvesting of the tallest trees of Avicennia marina can be maintained at levels less than 10 percent ha-1 year-1. Effective management of mangrove forests in South African is important to maintain the current state, function and diversity of these ecosystems. Management recommendations should begin with determining the freshwater requirements of the estuaries to maintain the mouth dynamics and biotic communities and deter the harvesting of (whole) adult trees particularly those species that do not coppice. Further management is needed to ensure that forests are cleared of pollutants (plastic and industrial), and any further developments near the mangroves should be minimized.

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Libros sobre el tema "Mangrove ecology"

Johnstone, R. E. Mangroves and mangrove birds of Western Australia. Perth, W.A: Western Australian Museum, 1990.

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Duke, Norman C. Australia's mangroves: The authoritative guide to Australia's mangrove plants. St. Lucia, Qld: University of Queensland, 2006.

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I, Robertson A. y Alongi D. M, eds. Tropical mangrove ecosystems. Washington, DC: American Geophysical Union, 1992.

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Soemodihardjo, Subagjo. Bibliografi beranotasi sumberdaya mangrove Indonesia = Annotated bibliography on Indonesian mangroves. Jakarta: Lembaga Ilmu Pengetahuan Indonesia, Panitia Nasional Program MAB Indonesia, Proyek Penelitian Lingkungaan Hidup, 1989.

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Saenger, Peter. Mangrove ecology, silviculture, and conservation. Dordrecht: Kluwer Academic, 2001.

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Saenger, Peter. Mangrove Ecology, Silviculture and Conservation. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7.

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B, Chaudhuri A. Sundarbans mangrove: Ecology & wild life. Dehra Dun, India: Jugal Kishore & Co. (Pub. Div.), 1989.

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Pryor, Kimberley Jane. Mangrove swamps. North Mankato, MN: Smart Apple Media, 2007.

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A, Rao T., ed. Mangroves of Orissa coast and their ecology. Dehra Dun, India: Bishen Singh Mahendra Pal Singh, 1990.

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Sujanapal, P. Handbook on mangroves and mangrove associates of Kerala. Thiruvananthapuram: Kerala State Biodiversity Board, 2014.

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Capítulos de libros sobre el tema "Mangrove ecology"

Twilley, Robert R. y John W. Day. "Mangrove Wetlands". En Estuarine Ecology, 165–202. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch7.

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Huntley, Brian John. "The Mangrove Biome". En Ecology of Angola, 383–91. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18923-4_17.

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AbstractThe cold Benguela Current passing along Angola’s Atlantic Ocean coast accounts for its mangrove communities lying 20° latitude north of those of the Indian Ocean Coast of Africa, bathed by the warm Mozambique Current. This chapter draws on the limited literature available on Angola’s mangrove forests and seagrass meadows that constitute its Mangrove Biome. Comprising only five of the world’s 55 mangrove species, and two of the world’s 70 species of seagrasses, Angola’s mangrove communities cover a very limited area compared with other tropical countries. This is due to Angola’s steeply shelving coastline, with small lagoons and mudflats at the mouths of its rivers. However, they provide excellent opportunities for the study of the complex adaptations of plants to regular changes in water salinity and to growth in waterlogged, anoxic soil. The adaptations include stilt roots, with specialised absorptive pores, roots containing porous aerenchyma tissue for oxygen transfer, and reproductive propagules that develop into seedlings while still attached to the tree. The mudflats of coastal lagoons support two species of seagrass (highly specialised angiosperms that are permanently submerged). Seagrass meadows provide habitat for a wide diversity of marine animals, while mangrove forests shelter several crocodile and primate species.

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Saenger, Peter. "The Mangrove Flora". En Mangrove Ecology, Silviculture and Conservation, 11–47. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_2.

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Saenger, Peter. "Introduction: The Mangrove Environment". En Mangrove Ecology, Silviculture and Conservation, 1–10. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_1.

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Saenger, Peter. "Mangrove Structure and Classification". En Mangrove Ecology, Silviculture and Conservation, 183–205. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_6.

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Saenger, Peter. "Mangrove Silviculture and Restoration". En Mangrove Ecology, Silviculture and Conservation, 229–70. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_8.

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Ellison, Joanna C. "Factors Influencing Mangrove Ecosystems". En Mangroves: Ecology, Biodiversity and Management, 97–115. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2494-0_4.

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Saenger, Peter. "Adapting to the ‘Mangrove Environment’". En Mangrove Ecology, Silviculture and Conservation, 49–100. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_3.

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Saenger, Peter. "Biotic Interactions and Mangrove Performance". En Mangrove Ecology, Silviculture and Conservation, 147–82. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9962-7_5.

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Engku Ariff, Engku Azlin Rahayu, Ahmad Faris Seman Kamarulzaman y Mohd Nazip Suratman. "Energy Flux in Mangrove Ecosystems". En Mangroves: Ecology, Biodiversity and Management, 117–26. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2494-0_5.

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Actas de conferencias sobre el tema "Mangrove ecology"

Mokhtari, Mohammad, Mazlan Abd Ghaffar, Gires Usup y Zaidi Che Cob. "The ecology of fiddler crab Uca forcipata in mangrove forest". En THE 2013 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2013 Postgraduate Colloquium. AIP Publishing LLC, 2013. http://dx.doi.org/10.1063/1.4858704.

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Ekasari, Anak Agung Kartika, I. GD Yudha Partama y Ni Gst Ag Gde Eka Martiningsih. "Collaborative mangrove ecosystem management strategy to support coastal ecotourism in Pemogan Village, Denpasar City". En TRANSPORT, ECOLOGY, SUSTAINABLE DEVELOPMENT: EKO VARNA 2023. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0197198.

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Ariyanti, Yanti, Ika Agus Rini, Sovia Santi Leksikowati, Indah Oktaviani, Muhammad Isa Ananta, Fidya Septiana, Anny Safira et al. "Applying DNA barcoding to identify fish species from mangrove ecosystem along the coast of Lampung". En II INTERNATIONAL CONFERENCE “SUSTAINABLE DEVELOPMENT: AGRICULTURE, VETERINARY MEDICINE AND ECOLOGY”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0130153.

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Maravillas, Alme B., Ariel Christian C. Viodor, Romar B. Dinoy, Margie V. Avenido y Jemma Lucitte A. Cabrillos. "Implementation of data mining on mangroves species using k-means algorithm". En TRANSPORT, ECOLOGY - SUSTAINABLE DEVELOPMENT: EKOVarna2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0162447.

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