Data Portal @ linkeddatafragments.org

Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Shifting_baseline> ?p ?o. }

• Shifting_baseline abstract "A shifting baseline (also known as sliding baseline) is a type of change to how a system is measured, usually against previous reference points (baselines), which themselves may represent significant changes from an even earlier state of the system. A conceptual metaphor for a shifting baseline is the price of coffee. A cup of coffee may have only cost a $0.05 in the 1950s, but in the 1980s the cost shifted to $1.00 (ignoring inflation). The current (21st century) coffee prices are based on the 1980s model, rather than the 1950s model. The point of reference moved.The concept arose in landscape architect Ian McHarg's famous manifesto "Design With Nature" in which the landscape as we know it is compared to that which ancient men once lived on. The concept was then considered by the fisheries scientist Daniel Pauly in his paper "Anecdotes and the shifting baseline syndrome of fisheries". Pauly developed the concept in reference to fisheries management where fisheries scientists sometimes fail to identify the correct "baseline" population size (e.g. how abundant a fish species population was before human exploitation) and thus work with a shifted baseline. He describes the way that radically depleted fisheries were evaluated by experts who used the state of the fishery at the start of their careers as the baseline, rather than the fishery in its untouched state. Areas that swarmed with a particular species hundreds of years ago, may have experienced long term decline, but it is the level of decades previously that is considered the appropriate reference point for current populations. In this way large declines in ecosystems or species over long periods of time were, and are, masked. There is a loss of perception of change that occurs when each generation redefines what is "natural". Most modern fisheries stock assessments do not ignore historical fishing and account for it by either including the historical catch or use other techniques to reconstruct the depletion level of the population at the start of the period for which adequate data is available. Anecdotes about historical populations levels can be highly unreliable and result in severe mismanagement of the fishery.[citation needed]The concept was further refined and applied to the ecology of kelp forests by Paul Dayton and others from the Scripps Institution of Oceanography. They used a slightly different version of the term in their paper, "Sliding baselines, ghosts, and reduced expectations in kelp forest communities". Both terms refer to a shift over time in the expectation of what a healthy ecosystem baseline looks like.".
• Shifting_baseline wikiPageExternalLink 0623-hance_shiftingbaselines.html.
• Shifting_baseline wikiPageExternalLink ShiftingBaselines_Canright.pdf.
• Shifting_baseline wikiPageExternalLink shiftingbaselines.htm.
• Shifting_baseline wikiPageExternalLink 1051-0761%281998%29008%5B0309%3ASBGARE%5D2.0.CO%3B2.
• Shifting_baseline wikiPageExternalLink ImportanceHistoricalDimensionPolicyMngtNaturalResourceSystems.pdf.
• Shifting_baseline wikiPageExternalLink shiftingbaselines.php.
• Shifting_baseline wikiPageExternalLink shiftingbaselines.
• Shifting_baseline wikiPageExternalLink science?_ob=ArticleURL&_udi=B6VJ1-40W0T2R-7Y&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=313bda126ec2c8cba56b51a0c83d6e6d.
• Shifting_baseline wikiPageExternalLink www.shiftingbaselines.org.
• Shifting_baseline wikiPageExternalLink daniel_pauly_the_ocean_s_shifting_baseline.html.
• Shifting_baseline wikiPageExternalLink abstract?CRETRY=1&SRETRY=0.
• Shifting_baseline wikiPageID "6665283".
• Shifting_baseline wikiPageRevisionID "598650112".
• Shifting_baseline hasPhotoCollection Shifting_baseline.
• Shifting_baseline subject Category:Biostatistics.
• Shifting_baseline subject Category:Environmental_terminology.
• Shifting_baseline subject Category:Evaluation.
• Shifting_baseline subject Category:Fisheries_science.
• Shifting_baseline comment "A shifting baseline (also known as sliding baseline) is a type of change to how a system is measured, usually against previous reference points (baselines), which themselves may represent significant changes from an even earlier state of the system. A conceptual metaphor for a shifting baseline is the price of coffee. A cup of coffee may have only cost a $0.05 in the 1950s, but in the 1980s the cost shifted to $1.00 (ignoring inflation).".
• Shifting_baseline label "Shifting baseline".
• Shifting_baseline sameAs m.0gglnv.
• Shifting_baseline sameAs Q7496274.
• Shifting_baseline sameAs Q7496274.
• Shifting_baseline wasDerivedFrom Shifting_baseline?oldid=598650112.
• Shifting_baseline isPrimaryTopicOf Shifting_baseline.