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  • *Biodiversity  (15)
  • American Association for the Advancement of Science (AAAS)  (15)
  • 2005-2009  (15)
  • 2006  (15)
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  • American Association for the Advancement of Science (AAAS)  (15)
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  • 2005-2009  (15)
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  • 1
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    Biodiversity. Confronting amphibian declines and extinctions (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mendelson, Joseph R 3rd -- Lips, Karen R -- Gagliardo, Ronald W -- Rabb, George B -- Collins, James P -- Diffendorfer, James E -- Daszak, Peter -- Ibanez D, Roberto -- Zippel, Kevin C -- Lawson, Dwight P -- Wright, Kevin M -- Stuart, Simon N -- Gascon, Claude -- da Silva, Helio R -- Burrowes, Patricia A -- Joglar, Rafael L -- La Marca, Enrique -- Lotters, Stefan -- du Preez, Louis H -- Weldon, Che -- Hyatt, Alex -- Rodriguez-Mahecha, Jose Vicente -- Hunt, Susan -- Robertson, Helen -- Lock, Brad -- Raxworthy, Christopher J -- Frost, Darrel R -- Lacy, Robert C -- Alford, Ross A -- Campbell, Jonathan A -- Parra-Olea, Gabriela -- Bolanos, Federico -- Domingo, Jose Joaquin Calvo -- Halliday, Tim -- Murphy, James B -- Wake, Marvalee H -- Coloma, Luis A -- Kuzmin, Sergius L -- Price, Mark Stanley -- Howell, Kim M -- Lau, Michael -- Pethiyagoda, Rohan -- Boone, Michelle -- Lannoo, Michael J -- Blaustein, Andrew R -- Dobson, Andy -- Griffiths, Richard A -- Crump, Martha L -- Wake, David B -- Brodie, Edmund D Jr -- New York, N.Y. -- Science. 2006 Jul 7;313(5783):48.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoo Atlanta, 800 Cherokee Avenue SE, Atlanta, GA 30315, USA. jmendelson@zooatlanta.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825553" target="_blank"〉PubMed〈/a〉
    Keywords: *Amphibians ; Animals ; *Biodiversity ; Chytridiomycota ; Conservation of Natural Resources ; Ecosystem ; *International Agencies ; International Cooperation ; Mycoses/veterinary ; Population Dynamics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Plant genotypic diversity predicts community structure and governs an ecosystem process (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-08-19
    Description: Theory predicts, and recent empirical studies have shown, that the diversity of plant species determines the diversity of associated herbivores and mediates ecosystem processes, such as aboveground net primary productivity (ANPP). However, an often-overlooked component of plant diversity, namely population genotypic diversity, may also have wide-ranging effects on community structure and ecosystem processes. We showed experimentally that increasing population genotypic diversity in a dominant old-field plant species, Solidago altissima, determined arthropod diversity and community structure and increased ANPP. The effects of genotypic diversity on arthropod diversity and ANPP were comparable to the effects of plant species diversity measured in other studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crutsinger, Gregory M -- Collins, Michael D -- Fordyce, James A -- Gompert, Zachariah -- Nice, Chris C -- Sanders, Nathan J -- New York, N.Y. -- Science. 2006 Aug 18;313(5789):966-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA. gcrutsin@utk.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16917062" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Arthropods ; *Biodiversity ; *Ecosystem ; *Genetic Variation ; Genotype ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Population Density ; Solidago/*genetics/growth & development
    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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    Nonrandom processes maintain diversity in tropical forests (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-01-28
    Description: An ecological community's species diversity tends to erode through time as a result of stochastic extinction, competitive exclusion, and unstable host-enemy dynamics. This erosion of diversity can be prevented over the short term if recruits are highly diverse as a result of preferential recruitment of rare species or, alternatively, if rare species survive preferentially, which increases diversity as the ages of the individuals increase. Here, we present census data from seven New and Old World tropical forest dynamics plots that all show the latter pattern. Within local areas, the trees that survived were as a group more diverse than those that were recruited or those that died. The larger (and therefore on average older) survivors were more diverse within local areas than the smaller survivors. When species were rare in a local area, they had a higher survival rate than when they were common, resulting in enrichment for rare species and increasing diversity with age and size class in these complex ecosystems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wills, Christopher -- Harms, Kyle E -- Condit, Richard -- King, David -- Thompson, Jill -- He, Fangliang -- Muller-Landau, Helene C -- Ashton, Peter -- Losos, Elizabeth -- Comita, Liza -- Hubbell, Stephen -- Lafrankie, James -- Bunyavejchewin, Sarayudh -- Dattaraja, H S -- Davies, Stuart -- Esufali, Shameema -- Foster, Robin -- Gunatilleke, Nimal -- Gunatilleke, Savitri -- Hall, Pamela -- Itoh, Akira -- John, Robert -- Kiratiprayoon, Somboon -- de Lao, Suzanne Loo -- Massa, Marie -- Nath, Cheryl -- Noor, Md Nur Supardi -- Kassim, Abdul Rahman -- Sukumar, Raman -- Suresh, Hebbalalu Satyanarayana -- Sun, I-Fang -- Tan, Sylvester -- Yamakura, Takuo -- Zimmerman, Jess -- New York, N.Y. -- Science. 2006 Jan 27;311(5760):527-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093-0116, USA. cwills@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16439661" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; Population Density ; Population Dynamics ; *Trees/growth & development ; Tropical Climate
    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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  • 4
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    Carbon-negative biofuels from low-input high-diversity grassland biomass (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-12-13
    Description: Biofuels derived from low-input high-diversity (LIHD) mixtures of native grassland perennials can provide more usable energy, greater greenhouse gas reductions, and less agrichemical pollution per hectare than can corn grain ethanol or soybean biodiesel. High-diversity grasslands had increasingly higher bioenergy yields that were 238% greater than monoculture yields after a decade. LIHD biofuels are carbon negative because net ecosystem carbon dioxide sequestration (4.4 megagram hectare(-1) year(-1) of carbon dioxide in soil and roots) exceeds fossil carbon dioxide release during biofuel production (0.32 megagram hectare(-1) year(-1)). Moreover, LIHD biofuels can be produced on agriculturally degraded lands and thus need to neither displace food production nor cause loss of biodiversity via habitat destruction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tilman, David -- Hill, Jason -- Lehman, Clarence -- New York, N.Y. -- Science. 2006 Dec 8;314(5805):1598-600.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN 55108, USA. tilman@umn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17158327" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Atmosphere ; *Biodiversity ; *Biomass ; *Carbon/analysis ; Carbon Dioxide/analysis/metabolism ; Ecosystem ; *Energy-Generating Resources ; Fabaceae/growth & development/metabolism ; Greenhouse Effect ; Plant Development ; Plant Roots/chemistry ; *Plants/metabolism ; *Poaceae/growth & development/metabolism ; Soil/analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Out of the tropics: evolutionary dynamics of the latitudinal diversity gradient (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-10-07
    Description: The evolutionary dynamics underlying the latitudinal gradient in biodiversity have been controversial for over a century. Using a spatially explicit approach that incorporates not only origination and extinction but immigration, a global analysis of genera and subgenera of marine bivalves over the past 11 million years supports an "out of the tropics" model, in which taxa preferentially originate in the tropics and expand toward the poles without losing their tropical presence. The tropics are thus both a cradle and a museum of biodiversity, contrary to the conceptual dichotomy dominant since 1974; a tropical diversity crisis would thus have profound evolutionary effects at all latitudes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jablonski, David -- Roy, Kaustuv -- Valentine, James W -- New York, N.Y. -- Science. 2006 Oct 6;314(5796):102-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA. djablons@uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17023653" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Biological Evolution ; *Bivalvia/classification ; *Fossils ; Geography ; Models, Biological ; Phylogeny ; Population Dynamics ; *Tropical Climate
    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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  • 6
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    Bacterial diversity in tree canopies of the Atlantic forest (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-01
    Description: We found an extraordinary level of bacterial biodiversity in the tree leaf canopy of a tropical Atlantic forest by using culture-independent molecular methods. Our survey suggests that each tree species selects for a distinct microbial community. Analysis of the bacterial 16S ribosomal RNA gene sequences revealed that about 97% of the bacteria were unknown species and that the phyllosphere of any one tree species carries at least 95 to 671 bacterial species. The tree canopies of tropical forests likely represent a large reservoir of unexplored microbial diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lambais, M R -- Crowley, D E -- Cury, J C -- Bull, R C -- Rodrigues, R R -- New York, N.Y. -- Science. 2006 Jun 30;312(5782):1917.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Soils and Soil Science, University of Sao Paulo, Piracicaba, Sao Paulo, Brazil. mlambais@esalq.usp.br〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16809531" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria/*classification/genetics/*isolation & purification ; *Biodiversity ; Brazil ; DNA Fingerprinting ; *Ecosystem ; Genes, rRNA ; Molecular Sequence Data ; Plant Leaves/*microbiology ; RNA, Ribosomal, 16S/genetics ; Trees/*microbiology ; Tropical Climate
    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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  • 7
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    Parallel declines in pollinators and insect-pollinated plants in Britain and the Netherlands (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-22
    Description: Despite widespread concern about declines in pollination services, little is known about the patterns of change in most pollinator assemblages. By studying bee and hoverfly assemblages in Britain and the Netherlands, we found evidence of declines (pre-versus post-1980) in local bee diversity in both countries; however, divergent trends were observed in hoverflies. Depending on the assemblage and location, pollinator declines were most frequent in habitat and flower specialists, in univoltine species, and/or in nonmigrants. In conjunction with this evidence, outcrossing plant species that are reliant on the declining pollinators have themselves declined relative to other plant species. Taken together, these findings strongly suggest a causal connection between local extinctions of functionally linked plant and pollinator species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biesmeijer, J C -- Roberts, S P M -- Reemer, M -- Ohlemuller, R -- Edwards, M -- Peeters, T -- Schaffers, A P -- Potts, S G -- Kleukers, R -- Thomas, C D -- Settele, J -- Kunin, W E -- New York, N.Y. -- Science. 2006 Jul 21;313(5785):351-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Integrative and Comparative Biology and Earth and Biosphere Institute, University of Leeds, Leeds, LS2 9JT, UK. j.c.biesmeijer@leeds.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16857940" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Migration ; Animals ; *Bees ; *Biodiversity ; *Diptera ; *Ecosystem ; Environment ; Flowers ; Great Britain ; Netherlands ; *Plants ; *Pollen ; Population Dynamics
    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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  • 8
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    Phylogeny of the ants: diversification in the age of angiosperms (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-04-08
    Description: We present a large-scale molecular phylogeny of the ants (Hymenoptera: Formicidae), based on 4.5 kilobases of sequence data from six gene regions extracted from 139 of the 288 described extant genera, representing 19 of the 20 subfamilies. All but two subfamilies are recovered as monophyletic. Divergence time estimates calibrated by minimum age constraints from 43 fossils indicate that most of the subfamilies representing extant ants arose much earlier than previously proposed but only began to diversify during the Late Cretaceous to Early Eocene. This period also witnessed the rise of angiosperms and most herbivorous insects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moreau, Corrie S -- Bell, Charles D -- Vila, Roger -- Archibald, S Bruce -- Pierce, Naomi E -- New York, N.Y. -- Science. 2006 Apr 7;312(5770):101-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Museum of Comparative Zoology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA. cmoreau@oeb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16601190" target="_blank"〉PubMed〈/a〉
    Keywords: *Angiosperms ; Animals ; Ants/anatomy & histology/*classification/*genetics ; Base Sequence ; Bayes Theorem ; *Biodiversity ; Biological Evolution ; Computational Biology ; Ecosystem ; Environment ; Fossils ; Genes, Insect ; Genes, Mitochondrial ; *Phylogeny ; Time ; Trees
    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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  • 9
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    Corridors increase plant species richness at large scales (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-09-02
    Description: Habitat fragmentation is one of the largest threats to biodiversity. Landscape corridors, which are hypothesized to reduce the negative consequences of fragmentation, have become common features of ecological management plans worldwide. Despite their popularity, there is little evidence documenting the effectiveness of corridors in preserving biodiversity at large scales. Using a large-scale replicated experiment, we showed that habitat patches connected by corridors retain more native plant species than do isolated patches, that this difference increases over time, and that corridors do not promote invasion by exotic species. Our results support the use of corridors in biodiversity conservation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Damschen, Ellen I -- Haddad, Nick M -- Orrock, John L -- Tewksbury, Joshua J -- Levey, Douglas J -- New York, N.Y. -- Science. 2006 Sep 1;313(5791):1284-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, North Carolina State University, Raleigh, NC 27695-7617, USA. damschen@nceas.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16946070" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Conservation of Natural Resources ; Ecosystem ; *Environment ; Pinus/*growth & development ; *Plant Development ; Seeds ; Soil ; South Carolina ; Trees/*growth & development
    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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  • 10
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    Global biodiversity conservation priorities (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-11
    Description: The location of and threats to biodiversity are distributed unevenly, so prioritization is essential to minimize biodiversity loss. To address this need, biodiversity conservation organizations have proposed nine templates of global priorities over the past decade. Here, we review the concepts, methods, results, impacts, and challenges of these prioritizations of conservation practice within the theoretical irreplaceability/vulnerability framework of systematic conservation planning. Most of the templates prioritize highly irreplaceable regions; some are reactive (prioritizing high vulnerability), and others are proactive (prioritizing low vulnerability). We hope this synthesis improves understanding of these prioritization approaches and that it results in more efficient allocation of geographically flexible conservation funding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brooks, T M -- Mittermeier, R A -- da Fonseca, G A B -- Gerlach, J -- Hoffmann, M -- Lamoreux, J F -- Mittermeier, C G -- Pilgrim, J D -- Rodrigues, A S L -- New York, N.Y. -- Science. 2006 Jul 7;313(5783):58-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Conservation International, 1919 M Street, NW, Washington, DC 20036, USA. t.brooks@conservation.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825561" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Conservation of Natural Resources/economics ; *Ecosystem ; Environment ; Financial Support ; Geography ; Humans ; Invertebrates ; Mammals ; Plants ; Population Density ; Vertebrates
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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