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| Registros recuperados: 19 | |
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| Le Floc' H, P; Poulard, Jean-charles; Thebaud, Olivier; Blanchard, Fabian; Bihel, J; Steinmetz, Fabien. |
| Market position and its evolution were analysed in nine key fish and cephalopod species subject to long-term changes, using the Bay of Biscay fisheries as a case study. Although such long term changes have already been documented, and in some cases shown to be related to the impacts of fishing, changes in the physical environment, or both, relatively little work has been devoted to their potential consequences in economic terms. The nature and extent of these consequences was determined in the present study by looking at the composition of the affected fish production, and the status of different fish products on the markets. We propose a methodology to characterize market position for this set of nine species. The selected species represent a significant... |
| Tipo: Text |
Palavras-chave: Atlantic Ocean; Fish market; Macro economic aggregates; Environmental change. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4716.pdf |
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| Convey, P.; Bindschadler, R.; Di Prisco, G.; Fahrbach, E.; Gutt, J.; Hodgson, D. A.; Mayewski, P. A.; Summerhayes, C. P.; Turner, J.; ACCE CONSORTIUM. |
| The Antarctic climate system varies on timescales from orbital, through millennial to sub-annual, and is closely coupled to other parts of the global climate system. We review these variations from the perspective of the geological and glaciological records and the recent historical period from which we have instrumental data (similar to the last 50 years). We consider their consequences for the biosphere, and show how the latest numerical models project changes into the future, taking into account human actions in the form of the release of greenhouse gases and chlorofluorocarbons into the atmosphere. In doing so, we provide an essential Southern Hemisphere companion to the Arctic Climate Impact Assessment. |
| Tipo: Text |
Palavras-chave: Antarctica; Biology; Environmental change; Geology; Glaciology; Southern Ocean. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00292/40357/82998.pdf |
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| Hotimsky, Samy; School of Environmental Sciences, University of East Anglia; s.hotimsky@uea.ac.uk; Cobb, Richard; School of Environmental Sciences, University of East Anglia; d.cobb@uea.ac.uk; Bond, Alan; School of Environmental Sciences, University of East Anglia; alan.bond@uea.ac.uk. |
| The impact of new institutionalism on the study of human environment interactions has been meaningful. Institutional perspectives have further shaped and modified the field problems of common pool resources, environmental hazards, and risk and environmental management. Given the relative potential of institutional theories to increase the comprehension of the various dimensions of human–environmental interactions, it has become increasingly important to attempt to consolidate different interpretations of what institutions are, and how they mediate and constrain possibilities for more successful environmental outcomes. This article focuses primarily on contending ontological perspectives on institutions and institutional change. It argues that... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Adaptation; Environmental change; Institutions; Ontology. |
| Ano: 2006 |
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| Sangare, Nathanael; Lo-yat, Alain; Le Moullac, Gilles; Pecquerie, Laure; Thomas, Yoann; Lefebvre, Sebastien; Le Gendre, Romain; Beliaeff, Benoit; Andréfouët, Serge. |
| The black-lipped pearl oyster (Pinctada margaritifera) is extensively farmed in French Polynesia to produce black pearls. For a sustainable management of marine resources, studying interactions between organisms and environment, and the associated factors and processes that will impact their life cycle and thus modulate population dynamics is a major research priority. Here, we describe black-lipped pearl oyster energy acquisition and use, and its control by temperature and food concentration within the Dynamic Energy Budget (DEB) theory framework. The model parametrization was based on literature data and a specific laboratory experiment. Model validation was carried out thanks to historical in-situ datasets and a dedicated field survey. Three theoretical... |
| Tipo: Text |
Palavras-chave: Bivalve; Physiology; Bioenergetics; Dynamic energy budget theory; Environmental change; Pearl farming. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00613/72469/71614.pdf |
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| Dorward, Andrew R.; SOAS, University of London; ad55@soas.ac.uk. |
| Human activity poses multiple environmental challenges for ecosystems that have intrinsic value and also support that activity. Our ability to address these challenges is constrained by, among other things, weaknesses in cross-disciplinary understandings of interactive processes of change in social–ecological systems. This paper draws on complementary insights from social and biological sciences to propose a “livelisystems” framework of multiscale, dynamic change across social and biological systems. This describes how material, informational, and relational assets, asset services, and asset pathways interact in systems with embedded and emergent properties undergoing a variety of structural transformations. Related... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Environmental change; Livelisystems; Social– Ecological systems. |
| Ano: 2014 |
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| Isaac, Marney E.; Department of Physical and Environmental Sciences and Center for Critical Development Studies, University of Toronto Scarborough; Department of Geography, University of Toronto; marney.isaac@utoronto.ca; Anglaaere, Luke C. N.; Forestry Research Institute of Ghana;; Akoto, Daniel S.; Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology;; Dawoe, Evans; Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology;. |
| Environmentally induced farmer migration is an important livelihood strategy, yet little is known of the effects on the destination region agroecosystem information networks and management practices. In the forest-savanna transition zone (Brong Ahafo Region) of Ghana, where migration from northern regions (migrant) and from neighboring regions (settler) is active, we chart the role of migrant famers and the type of agroecosystem management practices embedded in information networks using a social networks approach. Based on empirical network data from 44 respondents across three communities, we illustrate a diffuse information network, with variable tie frequency between settlement categories (local, settler, or migrant) of farmers. The cohesion of this... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agricultural innovation; Agroecology; Agroforestry; Environmental change; Ghana; Natural resource management; Social network analysis; Social-ecological memory; Theobroma cacao. |
| Ano: 2014 |
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| Failler, Pierre; Touron-gardic, Gregoire; Sadio, Oumar; Traore, Marie-suzanne. |
| The evolution of marine protected areas (MPAs) in West Africa is reviewed through a survey of managers' perception carried on between 2017 and 2018 for the establishment of the baseline of MPAs of the Network of Marine Protected Areas of West Africa (RAMPAO). Managers report that all natural habitats are subject to surface area losses. The most affected habitats were beaches, mudflats and estuarine channels, caused by erosion and rainfall deficit. Seagrasses, rocky bottoms and coral reefs also seem to be affected, but as they are not monitored and as the managers' knowledge is poor toward these habitats, changes are not properly recorded. Despite some damages, coastal forests seem to be the only natural habitat that see positive changes, mainly due to... |
| Tipo: Text |
Palavras-chave: Environmental change; Marine Protected Areas (MPAs); Manager perception; Satellite images; Habitats changes. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00657/76866/78194.pdf |
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| Sildever, Sirje; Ribeiro, Sofia; Mertens, Kenneth; Andersen, Thorbjørn Joest; Moros, Matthias; Kuijpers, Antoon. |
| We present a record of dinoflagellate cyst assemblage composition, abundance, and morphology from the central Baltic Sea, spanning from the late 19th to the early 21st century. Environmental time-series were analyzed in relation to changes in community structure and diversity as inferred from the sediment record, and average summer sea surface salinity (SSS) was reconstructed based on the average process length of Protoceratium reticulatum resting cysts. The reconstructed summer SSS was compared to instrumental data for a critical evaluation of this approach. The most abundant species in this record were P. reticulatum and Biecheleria baltica, and on average ten taxa were identified per sample. The cyst record of B. baltica indicated that although this... |
| Tipo: Text |
Palavras-chave: Baltic Sea; Biecheleria baltica; Dinoflagellate cysts; Environmental change; Protoceratium reticulatum; Sea-surface salinity; Sediment core records. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00481/59300/61994.pdf |
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| Small, David. |
| It is now accepted that the last British-Irish Ice Sheet (BIIS) was highly dynamic and drained by numerous fast flowing ice streams. This dynamic nature combined with its maritime location made the BIIS sensitive to the rapid climate change that characterised the Last Glacial Interglacial Transition. Gaining an understanding of the behaviour of the BIIS at this time is important to explore the nature of forcing between ice sheets and climate. This thesis presents new chronological data relating to the deglaciation of the northwest sector of the BIIS (NW-BIIS) from onshore dating of moraines using cosmogenic exposure dating. This improved chronological framework is supported by offshore data in the form of a newly constructed Ice Rafted Detritus (IRD)... |
| Tipo: Text |
Palavras-chave: British-Irish Ice Sheet; Deglaciation; Cosmogenic; Ice rafted detritus; Provenance; Environmental change. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00499/61039/64446.pdf |
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| Brunet, Nicolas D.; Department of Natural Resource Sciences, McGill University; nicolas.brunet@mail.mcgill.ca; Hickey, Gordon M.; Department of Natural Resource Sciences, McGill University; gordon.hickey@mcgill.ca; Humphries, Murray M.; Centre for Indigenous Peoples' Nutrition and Environment, McGill University; murray.humphries@mcgill.ca. |
| Arctic science is often claimed to have been transformed by the increased involvement of local people, but these claims of a new research paradigm have not been empirically evaluated. We argue that the "new" participatory research paradigm emerging in Arctic science embodies many of the principles of the Mode 2 knowledge production framework. Using the Mode 2 thesis as an assessment framework, we examined research articles appearing between 1965 and 2010 in the journal Arctic to assess the extent to which there has been a paradigm shift toward more participatory approaches. Results suggest that the involvement of local people has increased only slightly over the last half century and continues to vary systematically among disciplines, organizations, and... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Civic science; Community participation; Environmental change; Mode 2; Research policy; Traditional knowledge. |
| Ano: 2014 |
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| Mobility is a millenary human strategy to deal with environmental change. An outstanding example of mobility is transhumance, an ancient pastoralist practice consisting of the seasonal migration of livestock between ecological regions following peaks in pasture productivity. The maintenance of transhumance depends partly on the preservation of related traditional ecological knowledge (TEK). We (a) identified and characterized social groups that hold transhumance-related TEK, (b) analyzed trends in transhumance-related TEK across generations and social groups, (c) examined the factors that influence variation in levels of TEK, and (d) analyzed elements of transhumance-related TEK as examples of adaptive strategies to cope with global change. We used... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive strategy; Drove road; Environmental change; Mobility; Pastoralism; Resilience. |
| Ano: 2013 |
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| Registros recuperados: 19 | |
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