Author
Johann D. Bell
Other affiliations: Secretariat of the Pacific Community, WorldFish, Conservation International ...read more
Bio: Johann D. Bell is an academic researcher from University of Wollongong. The author has contributed to research in topics: Climate change & Fisheries management. The author has an hindex of 47, co-authored 121 publications receiving 9278 citations. Previous affiliations of Johann D. Bell include Secretariat of the Pacific Community & WorldFish.
Papers published on a yearly basis
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Hobart Corporation1, University of Évora2, University of Copenhagen3, Spanish National Research Council4, University of Wollongong5, Conservation International6, University of Hong Kong7, National Cheng Kung University8, Umeå University9, James Cook University10, Commonwealth Scientific and Industrial Research Organisation11, Stellenbosch University12, University of Cape Town13, National Oceanic and Atmospheric Administration14, Monash University15, Yale University16, University of Tasmania17, University of Picardie Jules Verne18, Southern Cross University19, University of Western Australia20, University of Eastern Finland21, University of Queensland22, Zoological Society of London23, National Oceanography Centre24, University of Florida25, University of California, Irvine26, La Trobe University27, University of British Columbia28, Academia Sinica29, University of New South Wales30
TL;DR: The negative effects of climate change cannot be adequately anticipated or prepared for unless species responses are explicitly included in decision-making and global strategic frameworks, and feedbacks on climate itself are documented.
Abstract: Distributions of Earth’s species are changing at accelerating rates, increasingly driven by human-mediated climate change. Such changes are already altering the composition of ecological communities, but beyond conservation of natural systems, how and why does this matter? We review evidence that climate-driven species redistribution at regional to global scales affects ecosystem functioning, human well-being, and the dynamics of climate change itself. Production of natural resources required for food security, patterns of disease transmission, and processes of carbon sequestration are all altered by changes in species distribution. Consideration of these effects of biodiversity redistribution is critical yet lacking in most mitigation and adaptation strategies, including the United Nation’s Sustainable Development Goals.
1,917 citations
University of Washington1, Wellington Management Company2, Hobart Corporation3, University of California, Davis4, University of California, Santa Cruz5, National Scientific and Technical Research Council6, WorldFish7, Australian Institute of Marine Science8, Imperial College London9, University of Iceland10, University of British Columbia11
TL;DR: Marine reserves are a promising tool for fisheries management and conservation of biodiversity, but they are not a panacea for fishery management problems as discussed by the authors, and their successful use requires a case-by-case understanding of the spatial structure of impacted fisheries, ecosystems and human communities.
665 citations
TL;DR: In this paper, the authors show that even well-managed coastal fisheries will only meet the demand in 6 of 22 Pacific island countries and territories (PICTs) and propose to increase local access to tuna and develop small-pond aquaculture to provide food security.
481 citations
TL;DR: La richesse specifique and the densite des individus sont liees au pourcentage de couverture par les coraux vivants (archipel des Touamotou, Polynesie).
Abstract: La richesse specifique et la densite des individus sont liees au pourcentage de couverture par les coraux vivants (archipel des Touamotou, Polynesie)
461 citations
TL;DR: The 3rd International Symposium on Stock Enhancement and Sea Ranching (ISSESR) as mentioned in this paper was held in the U.S.A. in 2006, and the major advances included: (1) definitions of the various objectives for releasing cultured juveniles (restocking, stock enhancement, and sea ranching); (2) a framework for integrating releases within their fisheries management context, including tools for quantitative assessment; (3) a systematic, transparent, and stakeholder-participatory planning process to determine whether releases have a cost-effective role to play in managing a fisher
Abstract: The growing number of countries investigating the potential for releasing cultured juveniles to augment coastal fisheries resulted in the First International Symposium on Stock Enhancement and Sea Ranching (ISSESR) in Norway in 1997. The 1st and 2nd ISSESR, in Japan in 2002, were instrumental in developing methods for mass production of environmentally fit juveniles and for releasing them in responsible ways. The 3rd ISSESR, held in the U.S.A. in 2006 (www.SeaRanching.org), ushered the discipline into a new era. The major advances included: (1) definitions of the various objectives for releasing cultured juveniles (restocking, stock enhancement, and sea ranching); (2) a framework for integrating releases within their fisheries management context, including tools for quantitative assessment; (3) a systematic, transparent, and stakeholder-participatory planning process to determine whether releases have a cost-effective role to play in managing a fishery; (4) a comprehensive case study (blue crabs in Chesap...
256 citations
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TL;DR: It is suggested that the natural selection against large insertion/deletion is so weak that a large amount of variation is maintained in a population.
11,521 citations
Journal Article•
TL;DR: In this paper, a documento: "Cambiamenti climatici 2007: impatti, adattamento e vulnerabilita" voteato ad aprile 2007 dal secondo gruppo di lavoro del Comitato Intergovernativo sui Cambiamentsi Climatici (Intergovernmental Panel on Climate Change).
Abstract: Impatti, adattamento e vulnerabilita Le cause e le responsabilita dei cambiamenti climatici sono state trattate sul numero di ottobre della rivista Cda. Approfondiamo l’argomento presentando il documento: “Cambiamenti climatici 2007: impatti, adattamento e vulnerabilita” votato ad aprile 2007 dal secondo gruppo di lavoro del Comitato Intergovernativo sui Cambiamenti Climatici (Intergovernmental Panel on Climate Change). Si tratta del secondo di tre documenti che compongono il quarto rapporto sui cambiamenti climatici.
3,979 citations
Dalhousie University1, University of Wyoming2, Plymouth Marine Laboratory3, Stockholm University4, Royal Swedish Academy of Sciences5, University of California, Santa Barbara6, Scripps Institution of Oceanography7, Smithsonian Tropical Research Institute8, Stanford University9, University of California, Davis10, University of British Columbia11
TL;DR: The authors analyzed local experiments, long-term regional time series, and global fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial scales, concluding that marine biodiversity loss is increasingly impairing the ocean's capacity to provide food, maintain water quality, and recover from perturbations.
Abstract: Human-dominated marine ecosystems are experiencing accelerating loss of populations and species, with largely unknown consequences. We analyzed local experiments, long-term regional time series, and global fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial scales. Overall, rates of resource collapse increased and recovery potential, stability, and water quality decreased exponentially with declining diversity. Restoration of biodiversity, in contrast, increased productivity fourfold and decreased variability by 21%, on average. We conclude that marine biodiversity loss is increasingly impairing the ocean's capacity to provide food, maintain water quality, and recover from perturbations. Yet available data suggest that at this point, these trends are still reversible.
3,672 citations
TL;DR: Michael W. Beck, Kenneth L. Heck, Jr., Kenneth W. Heck's son, and Peter F. Sheridan are among the authors of this book, which aims to provide a history of web exceptionalism from 1989 to 2002.
Abstract: Michael W. Beck, Kenneth L. Heck, Jr., Kenneth W. Able, Daniel L. Childers, David B. Eggleston, Bronwyn M. Gillanders, Benjamin Halpern, Cynthia G. Hays, Kaho Hoshino, Thomas J. Minello, Robert J. Orth, Peter F. Sheridan and Michael P. Weinstein
2,356 citations
Hobart Corporation1, University of Évora2, Spanish National Research Council3, University of Copenhagen4, Conservation International5, University of Wollongong6, University of Hong Kong7, National Cheng Kung University8, Umeå University9, James Cook University10, Commonwealth Scientific and Industrial Research Organisation11, University of Cape Town12, Stellenbosch University13, National Oceanic and Atmospheric Administration14, Monash University15, Yale University16, University of Tasmania17, University of Picardie Jules Verne18, Southern Cross University19, University of Western Australia20, University of Eastern Finland21, University of Queensland22, Zoological Society of London23, National Oceanography Centre24, University of Florida25, University of California, Irvine26, La Trobe University27, University of British Columbia28, Academia Sinica29, University of New South Wales30
TL;DR: The negative effects of climate change cannot be adequately anticipated or prepared for unless species responses are explicitly included in decision-making and global strategic frameworks, and feedbacks on climate itself are documented.
Abstract: Distributions of Earth’s species are changing at accelerating rates, increasingly driven by human-mediated climate change. Such changes are already altering the composition of ecological communities, but beyond conservation of natural systems, how and why does this matter? We review evidence that climate-driven species redistribution at regional to global scales affects ecosystem functioning, human well-being, and the dynamics of climate change itself. Production of natural resources required for food security, patterns of disease transmission, and processes of carbon sequestration are all altered by changes in species distribution. Consideration of these effects of biodiversity redistribution is critical yet lacking in most mitigation and adaptation strategies, including the United Nation’s Sustainable Development Goals.
1,917 citations