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  • *Ecosystem  (3)
  • American Association for the Advancement of Science (AAAS)  (3)
  • American Chemical Society
  • Cell Press
  • National Academy of Sciences
Collection
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  • American Association for the Advancement of Science (AAAS)  (3)
  • American Chemical Society
  • Cell Press
  • National Academy of Sciences
Years
  • 1
    Publication Date: 2002-01-19
    Description: Immigrants to habitats occupied by conspecific organisms are usually expected to be competitively inferior, because residents may be locally adapted. If residents are inbred, however, mating between immigrants and residents results in offspring that may enjoy a fitness advantage from hybrid vigor. We demonstrate this effect experimentally in a natural Daphnia metapopulation in which genetic bottlenecks and local inbreeding are common. We estimate that in this metapopulation, hybrid vigor amplifies the rate of gene flow several times more than would be predicted from the nominal migration rate. This can affect the persistence of local populations and the entire metapopulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebert, Dieter -- Haag, Christoph -- Kirkpatrick, Mark -- Riek, Myriam -- Hottinger, Jurgen W -- Pajunen, V Ilmari -- New York, N.Y. -- Science. 2002 Jan 18;295(5554):485-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoologisches Institut, Universitat Basel, Rheinsprung 9, 4051 Basel, Switzerland. dieter.ebert@unifr.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11799241" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Daphnia/*genetics/growth & development/physiology ; Demography ; *Ecosystem ; Female ; Finland ; Genetic Markers ; Genetics, Population ; Genotype ; *Hybrid Vigor ; Hybridization, Genetic ; *Inbreeding ; Life Cycle Stages ; Male ; Reproduction ; Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2008-02-16
    Description: The management and conservation of the world's oceans require synthesis of spatial data on the distribution and intensity of human activities and the overlap of their impacts on marine ecosystems. We developed an ecosystem-specific, multiscale spatial model to synthesize 17 global data sets of anthropogenic drivers of ecological change for 20 marine ecosystems. Our analysis indicates that no area is unaffected by human influence and that a large fraction (41%) is strongly affected by multiple drivers. However, large areas of relatively little human impact remain, particularly near the poles. The analytical process and resulting maps provide flexible tools for regional and global efforts to allocate conservation resources; to implement ecosystem-based management; and to inform marine spatial planning, education, and basic research.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halpern, Benjamin S -- Walbridge, Shaun -- Selkoe, Kimberly A -- Kappel, Carrie V -- Micheli, Fiorenza -- D'Agrosa, Caterina -- Bruno, John F -- Casey, Kenneth S -- Ebert, Colin -- Fox, Helen E -- Fujita, Rod -- Heinemann, Dennis -- Lenihan, Hunter S -- Madin, Elizabeth M P -- Perry, Matthew T -- Selig, Elizabeth R -- Spalding, Mark -- Steneck, Robert -- Watson, Reg -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):948-52. doi: 10.1126/science.1149345.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Ecological Analysis and Synthesis, 735 State Street, Santa Barbara, CA 93101, USA. halpern@nceas.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276889" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Climate ; Conservation of Natural Resources ; *Ecosystem ; Fisheries ; *Human Activities ; Humans ; Mathematics ; Models, Theoretical ; Oceans and Seas
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2011-02-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebert, Dieter -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):539-40. doi: 10.1126/science.1202092.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universitat Basel, Zoological Institute, Vesalgasse 1, 4059 Basel, Switzerland. dieter.ebert@unibas.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292957" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; Daphnia/*genetics/physiology ; *Ecosystem ; *Environment ; Evolution, Molecular ; *Gene Duplication ; *Genome ; Phenotype
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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