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  • 1
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    Population structure mediates sexual conflict in water striders (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2009-11-07
    Beschreibung: Sexual conflict occurs when males and females act against each others' interest, typically resulting in selection favoring harmful males. We performed laboratory experiments on sexual conflict that both confined individuals in isolated groups, which prevents selection acting counter to this conflict, and provided more naturalistic multigroup population structures. We show that in water striders, aggressive male mating behavior was strongly favored within groups but not favored in a multigroup population when individuals can freely disperse among groups. These observations explain the persistence of less-aggressive males within natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eldakar, Omar Tonsi -- Dlugos, Michael J -- Pepper, John W -- Wilson, David Sloan -- 5 K12 GM000708/GM/NIGMS NIH HHS/ -- K12 GM000708/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):816. doi: 10.1126/science.1180183.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Insect Science, University of Arizona, Tucson, AZ 85721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892974" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aggression ; Animals ; Female ; Heteroptera/*physiology ; Male ; Mating Preference, Animal ; Population Dynamics ; *Sexual Behavior, Animal
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 2
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    Human groups as units of selection (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1997-06-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, D S -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1816-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Binghamton University, Binghamton, NY 13902-6000, USA. dwilson@binghamton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9206841" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Biological Evolution ; *Group Processes ; Humans ; *Selection, Genetic ; *Social Behavior
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 3
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    Multilevel and kin selection in a connected world (2010)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2010-02-19
    Beschreibung: Wild et al. argue that the evolution of reduced virulence can be understood from the perspective of inclusive fitness, obviating the need to evoke group selection as a contributing causal factor. Although they acknowledge the mathematical equivalence of the inclusive fitness and multilevel selection approaches, they conclude that reduced virulence can be viewed entirely as an individual-level adaptation by the parasite. Here we show that their model is a well-known special case of the more general theory of multilevel selection, and that the cause of reduced virulence resides in the opposition of two processes: within-group and among-group selection. This distinction is important in light of the current controversy among evolutionary biologists in which some continue to affirm that natural selection centres only and always at the level of the individual organism or gene, despite mathematical demonstrations that evolutionary dynamics must be described by selection at various levels in the hierarchy of biological organization.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3151728/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3151728/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wade, Michael J -- Wilson, David S -- Goodnight, Charles -- Taylor, Doug -- Bar-Yam, Yaneer -- de Aguiar, Marcus A M -- Stacey, Blake -- Werfel, Justin -- Hoelzer, Guy A -- Brodie, Edmund D 3rd -- Fields, Peter -- Breden, Felix -- Linksvayer, Timothy A -- Fletcher, Jeffrey A -- Richerson, Peter J -- Bever, James D -- Van Dyken, J David -- Zee, Peter -- R01 GM084238/GM/NIGMS NIH HHS/ -- R01 GM084238-02/GM/NIGMS NIH HHS/ -- R01 GM092660/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Feb 18;463(7283):E8-9; discussion E9-10. doi: 10.1038/nature08809.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington, Indiana 47405, USA. mjwade@indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20164866" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Genetic Fitness/*physiology ; *Models, Biological ; Parasites/*genetics/*pathogenicity ; Selection, Genetic/*physiology ; Virulence/genetics/physiology
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 4
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    Drilling to gabbro in intact ocean crust (2006)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 2006-04-22
    Beschreibung: Sampling an intact sequence of oceanic crust through lavas, dikes, and gabbros is necessary to advance the understanding of the formation and evolution of crust formed at mid-ocean ridges, but it has been an elusive goal of scientific ocean drilling for decades. Recent drilling in the eastern Pacific Ocean in Hole 1256D reached gabbro within seismic layer 2, 1157 meters into crust formed at a superfast spreading rate. The gabbros are the crystallized melt lenses that formed beneath a mid-ocean ridge. The depth at which gabbro was reached confirms predictions extrapolated from seismic experiments at modern mid-ocean ridges: Melt lenses occur at shallower depths at faster spreading rates. The gabbros intrude metamorphosed sheeted dikes and have compositions similar to the overlying lavas, precluding formation of the cumulate lower oceanic crust from melt lenses so far penetrated by Hole 1256D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Douglas S -- Teagle, Damon A H -- Alt, Jeffrey C -- Banerjee, Neil R -- Umino, Susumu -- Miyashita, Sumio -- Acton, Gary D -- Anma, Ryo -- Barr, Samantha R -- Belghoul, Akram -- Carlut, Julie -- Christie, David M -- Coggon, Rosalind M -- Cooper, Kari M -- Cordier, Carole -- Crispini, Laura -- Durand, Sedelia Rodriguez -- Einaudi, Florence -- Galli, Laura -- Gao, Yongjun -- Geldmacher, Jorg -- Gilbert, Lisa A -- Hayman, Nicholas W -- Herrero-Bervera, Emilio -- Hirano, Nobuo -- Holter, Sara -- Ingle, Stephanie -- Jiang, Shijun -- Kalberkamp, Ulrich -- Kerneklian, Marcie -- Koepke, Jurgen -- Laverne, Christine -- Vasquez, Haroldo L Lledo -- Maclennan, John -- Morgan, Sally -- Neo, Natsuki -- Nichols, Holly J -- Park, Sung-Hyun -- Reichow, Marc K -- Sakuyama, Tetsuya -- Sano, Takashi -- Sandwell, Rachel -- Scheibner, Birgit -- Smith-Duque, Chris E -- Swift, Stephen A -- Tartarotti, Paola -- Tikku, Anahita A -- Tominaga, Masako -- Veloso, Eugenio A -- Yamasaki, Toru -- Yamazaki, Shusaku -- Ziegler, Christa -- New York, N.Y. -- Science. 2006 May 19;312(5776):1016-20. Epub 2006 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Science and Marine Science Institute, University of California, Santa Barbara, CA 93106, USA. dwilson@geol.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16627698" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    Neogene Transfer of Central California to the Pacific Plate: Evidence from Santa Maria Basin, California: ABSTRACT (1995)
    American Association of Petroleum Geologists
    Details
    Publikationsdatum: 1995-01-01
    Print ISSN: 0149-1423
    Digitale ISSN: 1943-2674
    Thema: Geologie und Paläontologie
    Publiziert von American Association of Petroleum Geologists
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  • 6
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    From sediment sink to erosion source: reconstructing Antarctic palaeotopography at the Eocene-Oligocene climate transition (2010)
    In:  EPIC3XXXI SCAR Open Science Conference, Buenos AiresAugust, 3, 2010 p.
    Details
    Publikationsdatum: 2019-07-17
    Beschreibung: The ability of models to elucidate climate and ice sheet dynamics at the Eocene-Oligocene climate transition (34 Ma) is limited by a reliance on present-day topography as a boundary condition. We present a reconstruction of the Antarctic palaeotopography at the E-O boundary that restores sediment eroded from the continent. Estimates of sediment volume surrounding Antarctica constrain our restoration. Using data from coring and seismic imaging and allowing for a moderate biogenic fraction, weathering reactions and sediment porosity, a source volume of 5-13 million cubic km is thought to have been removed from an area of ca. 13 million square km. Changes to the East Antarctic landscape by local, regional and continental-scale ice have been estimated using an ice sheet and erosion model. Material is restored in response to basal conditions under a range of modelled ice-sheet configurations. These models can restore 3-4 million cubic km to East Antarctica. In West Antarctica, factors including the variable position of the grounding line make it impractical to use quantitative erosion models. Here we link geological evidence for known or suspected remnants of Eocene topography with our understanding of processes and patterns of erosion and deposition to drive construction of potential surfaces. There are several options for geologically reasonable surfaces that imply 5-10 million cubic km of eroded volume. The uncertainty in eroded volume is muted by the transformation to palaeo-elevation because isostatic compensation generally limits the change in average regional elevation to 15-20% of the thickness eroded.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 7
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    ANTscape: Antarctic paleotopographic maps for the last 100 million years (2010)
    In:  EPIC3XXXI SCAR Open Science Conference, Buenos AiresAugust, 3, 2010 p.
    Details
    Publikationsdatum: 2019-07-17
    Beschreibung: ANTscape is a project of the Antarctic Climate Evolution (ACE) Research Program to develop a series of maps to show changes in Antarctic paleotopography over the last ~100 million years. The reconstructions will provide a base for summarising a range of paleoenvironmental data, and for use as inputs for the next generation of ice sheet-ice shelf models. The present-day bedrock topography from the SCAR BEDMAP project will be used as a starting point for reconstructing past paleotopography, moving to BEDMAP 2 when it becomes available. Six maps, one for each significant climatic regime or shift, are planned: 4, 14, 34, 50, 70 and 92 Ma. Work is well advanced on the map for 34 Ma (Wilson and Luyendyk, 2009, Geophysical Research Letters). This is a time that is far enough back for there to be a significantly different topography, but not so far back that reconstruction is seriously unconstrained. It is also of great interest to paleoclimatologists as the largely ice-free landscape on which the first continental ice-sheet formed. The maps prepared by ANTscape will depend not only on restoration of Antarctic continental geography by reversing tectonic movements and elevation changes, but also the restoration of sediment eroded from the continent and deposited around and beyond the Antarctic margin. This will require modeling changes to the Antarctic landscape from erosion (Jamieson et al., 2010, Earth & Planetary Science Letters) and estimates of sediment volumes through the Circum-Antarctic Stratigraphy and Paleobathymetry Project (CASP). For further information see www.ANTscape.aq
    Repository-Name: EPIC Alfred Wegener Institut
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  • 8
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    Antarctic topography at the Eocene-Oligocene boundary (2012)
    In:  EPIC3Palaeogeography, Palaeoclimatology, Palaeoecology, 335-33, pp. 24-34
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    Publikationsdatum: 2019-07-17
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
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  • 9
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    A reconstructed Antarctic palaeotopography for the Eocene-Oligocene climate transition (2011)
    In:  EPIC311th International Symposium of Antarctic Earth Sciences (ISAES), EdinburghJuly 2011., 10
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    Publikationsdatum: 2019-07-17
    Repository-Name: EPIC Alfred Wegener Institut
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  • 10
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    ANTscape: Antarctic Paleotopographic maps for the last 100 million years (2009)
    In:  EPIC3First Antarctic Climate Evolution Symposium, GranadaSept 2009., 7
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    Publikationsdatum: 2019-07-17
    Beschreibung: ANTscape is an ACE project to develop over the next three years a series of maps to show the changes in Antarctic paleotopography over the last ~100 million years. The reconstructions will provide a base for summarising a range of paleoenvironmental data, and be useful both as inputs for the next generation of ice sheet-ice shelf models, and for credible and realistic visualization of past landscapes to promote wider appreciation of past changes in the Antarctic environment. The first meeting of the group in April 2009 in Leeds agreed that for younger periods (Cenozoic) the present-day bedrock topography from the SCAR BEDMAP project would be a useful starting point for reconstructing past paleotopography, moving to BEDMAP 2 when it became available. However for older periods researchers would have to draw more on current knowledge of plate movements, tectonic deformation, thermal evolution and personal geological experience. Because of the scarcity of geological data, it was recognised that the reconstructions would entail considerable geological interpretation. However it was acknowledged that even poorly constrained reconstructions would be a significant improvement on the current practice of using present day topography for models of past ice sheets, when we know past topography was different.The following six time slices, each representing a significant climatic regime or shift, were proposed for a map: 4, 14, 34, 50, 70 and 92 Ma, with work beginning first on a map for 34 Ma. This is a time that is far enough back for there to be a significantly different topography, but not so far back that reconstruction is seriously unconstrained. It is also of great interest to paleoclimatologists as the largely ice-free landscape on which the first continental ice-sheet formed. The group leader for this time slice is Doug Wilson. The group decided the maps could most conveniently be developed by considering the Antarctic as comprising three large regions: 1) West Antarctica: Marie Byrd Land, Antarctic Peninsula, Ellsworth Mountains, West Antarctic rift system, Weddell Sea and Ross Sea, 2) East Antarctica including Transantarctic Mountains, and 3) the Antarctic margin, comprising the continental shelf and slope as far as the continent- ocean transition. A number of procedural issues are under discussion by ANTscape members, and input is sought from ACE 2009 participants in order that the issues be resolved in 2009. These include the primary geospatial tools to be used, spatial resolution of the primary product, the organizational scheme for gridding the data, and data/document storage and access. For the moment a report on the Leeds workshop along with abstracts and many of the presentations given there can be found at http://groups.google.com/group/antscape?hl=en The maps prepared by ANTscape will depend not only restoration of Antarctic continental geography by reversing tectonic movements and elevation changes, but also the restoration of sediment eroded from the continent and deposited around and beyond the Antarctic margin. This will require close collaboration with ROSSmap and the Circum-Antarctic Stratigraphy and Paleobaythmetry Project (CASP).
    Repository-Name: EPIC Alfred Wegener Institut
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