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Tesis sobre el tema "Saltmarsh ecology"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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1

Atkinson, Philip W. "The wintering ecology of the Twite Carduelis flavirostris and the consequences of habitat loss." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267539.

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2

Williams, Bethany Lynn. "The Role of Ecological Interactions in Saltmarsh Geomorphic Processes." W&M ScholarWorks, 2018. https://scholarworks.wm.edu/etd/1530192504.

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Accelerated sea-level rise poses a significant threat to coastal habitats. Salt marshes are critical coastal ecosystems, providing a host of services such as storm protection, food production, and carbon storage. Persistence of salt marshes in the face of rising sea levels relies, in part, on vertical accretion. Current ecogeomorphic models and empirical studies emphasize the importance of the positive relationship between plant production and vertical accretion via sediment trapping by stems aboveground and belowground organic matter production. Thus, changes in plant production influence sal

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3

Carpenter, Kathryn Elizabeth. "Nutrient, fluvial and groundwater fluxes between a North Norfolk, U.K. saltmarsh and the North Sea." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357211.

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4

Mazumder, Debashish, and res cand@acu edu au. "Contribution of Saltmarsh to Temperate Estuarine Fish in Southeast Australia." Australian Catholic University. School of Arts and Science (NSW, 2004. http://dlibrary.acu.edu.au/digitaltheses/public/adt-acuvp47.09042006.

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Saltmarsh is an important coastal habitat located in the littoral zone of estuaries. Australian saltmarsh area is decreasing due to agricultural and urban development and invasion by mangrove. The aim of the study was to assess the contribution made by saltmarsh as a habitat and a source of food items for fish. Three saltmarsh sites were studied, with Towra Point chosen as a site for detailed ecological study. When corrected for water volume, fish densities were found to be higher within the saltmarsh compared to the adjacent mangrove. Although the fish assemblages in saltmarshes differed sign

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5

Sauer, Robert Eugene Jr. "Development and use of saltmarsh mesocosms in studies of sedimentary mercury transformation." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/19608.

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6

Breitfuss, Mark, and n/a. "The Effects of Physical Habitat Modification for Mosquito Control, Runnelling, on Selected Non-Target Saltmarsh Resources." Griffith University. Australian School of Environmental Studies, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031126.074304.

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Runnelling is a popular method of physical habitat modification employed on saltmarshes to control pest mosquito populations. The runnelling method involves linking the tidal source to isolated mosquito breeding pools via shallow channels that enable slow water movement of low amplitude tides. Increased tidal flushing inhibits mosquito development. The range of organisms which inhabit saltmarsh are likely to be influenced by altered tidal conditions as they exhibit specific physicochemical requirements for feeding, burrowing or growth. The dynamic nature of saltmarsh may mean that changes

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7

Breitfuss, Mark. "The Effects of Physical Habitat Modification for Mosquito Control, Runnelling, on Selected Non-Target Saltmarsh Resources." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/367526.

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Runnelling is a popular method of physical habitat modification employed on saltmarshes to control pest mosquito populations. The runnelling method involves linking the tidal source to isolated mosquito breeding pools via shallow channels that enable slow water movement of low amplitude tides. Increased tidal flushing inhibits mosquito development. The range of organisms which inhabit saltmarsh are likely to be influenced by altered tidal conditions as they exhibit specific physicochemical requirements for feeding, burrowing or growth. The dynamic nature of saltmarsh may mean that changes

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8

Tibbles, Brian Jonathan. "Ecology and physiology of bacterial activity in a temperate saltmarsh lagoon, with an emphasis on nitrogen fixation." Doctoral thesis, University of Cape Town, 1994. http://hdl.handle.net/11427/21512.

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Heterotrophic bacterial activity and nitrogen fixation are fundamental to nutrient regeneration and nitrogen cycling in saltmarsh ecosystems. Ecological and physiological aspects of bacterial production and nitrogenase activity in marine sediments and water were examined in Langebaan Lagoon, a temperate saltmarsh ecosystem. Emphasis was placed on factors modulating rates and patterns of nitrogen fixation. Nitrogen fixation appeared to be dominated by heterotrophic bacteria. Rates of nitrogen fixation (estimated by the acetylene reduction technique), and bacterial production (estimated by triti

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9

Nithart, Mathilde. "Role of two polychaete species (Nereis diversicolor, Scoloplos armiger) in processing organic matter and nutrient cycling in a north Norfolk saltmarsh (UK)." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296337.

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10

Peterson, Jennifer Mcclain. "Ecological interactions influencing Avicennia germinans propagule dispersal and seedling establishment at mangrove-saltmarsh boundaries." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4562.

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Mangroves and saltmarshes are ecologically important coastal ecosystems; unfortunately, these low-lying coastal ecosystems are vulnerable to global climate change. As sea-levels rise, mangroves are expected to shift their distribution landward towards higher elevation sites that are occupied by other plants, including saltmarsh taxa. Therefore, mangrove recruits at the leading edge of expansion may interact with diverse assemblages of saltmarsh plants, and these interactions could influence the success of mangrove encroachment into higher tidal-elevation areas. The purpose of the research pres

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11

Kenworthy, Nigel. "The influence of bottom-up effects on trophic cascades : a case study of Orchestia (Amphipoda) affecting redshank (Tringa totanus) predation risk in a saltmarsh ecosystem." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/12775.

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Previous research into bottom-up processes on saltmarshes has mainly focused on the influence of plant succession on herbivores. This study will present original research exploring the influence of bottom-up processes in a saltmarsh ecosystem between three trophic levels: Orchestia, redshanks, and sparrowhawks. Density dependence, may be the dominant top-down effect when higher numbers of sparrowhawks and redshanks are present, and may mask top-down and bottom-up trait effects which are constant. Bottom-up effects begin to emerge when cold conditions force redshanks from muddy creeks onto the

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12

Rouger, Romuald. "Restoration genetics of north-west European saltmarshes : a multi-scale analysis of population genetic structure in Puccinellia maritima and Triglochin maritima." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21634.

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Increasing human pressure combined with sea level rise and increased storminess is threatening coastal ecosystems around the world. Among these ecosystems, saltmarshes are particularly endangered due to their position in temperate areas with low wave action where human density is often high (e.g. estuaries). Around the UK, centuries of land reclamation have led to a substantial decrease of the area of saltmarsh. Over the past decades, restoration schemes have been implemented in numerous coastal locations in an attempt to counteract this loss. Such schemes involve allowing sea water to inundat

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13

Crowther, Amy E. "The restoration of intertidal habitats for non-breeding waterbirds through breached managed realignment." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/334.

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Conservation of intertidal habitats in the UK is vital in order to continue to support nationally and internationally important populations of non-breeding waterbirds. Historic reclamation for agriculture and industry has resulted in the loss and degradation of large areas of these intertidal habitats in estuaries and they continue to be threatened by sea-level rise. Managed realignment is one method which is increasingly being used to restore intertidal habitats. As managed realignment is a relatively new restoration technique, the extent to which knowledge of the biology of estuaries is appl

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14

Chandrasekara, W. U. "The effects of anthropogenic disturbances on the macrobenthic fauna of saltmarshes and their recovery." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320394.

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15

DesRochers, David William. "Avian Communities of Created and Natural Wetlands: Saltmarshes of Southeast Virginia." W&M ScholarWorks, 2003. https://scholarworks.wm.edu/etd/1539626406.

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16

Wong, Joanne Xiao Wen <1983&gt. "Analysis of cumulative effects of multiple stressors on saltmarshes and consideration of management options." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7228/.

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Natural systems face pressures exerted by natural physical-chemical forcings and a myriad of co-occurring human stressors that may interact to cause larger than expected effects, thereby presenting a challenge to ecosystem management. This thesis aimed to develop new information that can contribute to reduce the existing knowledge gaps hampering the holistic management of multiple stressors. I undertook a review of the state-of-the-art methods to detect, quantify and predict stressor interactions, identifying techniques that could be applied in this thesis research. Then, I conducted a system

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17

Almeida, Diana. "Ecology and dynamics of mediterranean saltmarshes in a perspective of habitat management and restoration policies : the cases of Alvor and Arade in Portugal." Doctoral thesis, 2016. http://hdl.handle.net/10451/26317.

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Tese de doutoramento, Geografia (Geografia Física), Universidade de Lisboa, Instituto de Geografia e Ordenamento do Território, 2016<br>The main objective of this thesis is to study the impacts of morphology, structure and flora transformations on the former reclaimed saltmarshes of Alvor and Arade (Algarve, Portugal) and to understand how these changes can be connected with ecological restoration. The methodological approach used to assess the effects of land-use changes on saltmarshes (Chapter II) relied on combining vegetation surveys and the spatial analysis of historic maps (c. 1800) and

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