ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Population Dynamics  (3)
  • 2020-2022
  • 2005-2009  (3)
  • 1985-1989
  • 1955-1959
  • 1
    facet.materialart.
    Unknown
    Strong effect of dispersal network structure on ecological dynamics (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-10-22
    Description: A central question in ecology with great importance for management, conservation and biological control is how changing connectivity affects the persistence and dynamics of interacting species. Researchers in many disciplines have used large systems of coupled oscillators to model the behaviour of a diverse array of fluctuating systems in nature. In the well-studied regime of weak coupling, synchronization is favoured by increases in coupling strength and large-scale network structures (for example 'small worlds') that produce short cuts and clustering. Here we show that, by contrast, randomizing the structure of dispersal networks in a model of predators and prey tends to favour asynchrony and prolonged transient dynamics, with resulting effects on the amplitudes of population fluctuations. Our results focus on synchronization and dynamics of clusters in models, and on timescales, more appropriate for ecology, namely smaller systems with strong interactions outside the weak-coupling regime, rather than the better-studied cases of large, weakly coupled systems. In these smaller systems, the dynamics of transients and the effects of changes in connectivity can be well understood using a set of methods including numerical reconstructions of phase dynamics, examinations of cluster formation and the consideration of important aspects of cyclic dynamics, such as amplitude.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holland, Matthew D -- Hastings, Alan -- England -- Nature. 2008 Dec 11;456(7223):792-4. doi: 10.1038/nature07395. Epub 2008 Oct 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Environmental Science and Policy, University of California, Davis, One Shields Avenue, Davis, California 95616, USA. mdholland@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18931656" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; Food Chain ; *Models, Biological ; Population Dynamics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Phanerozoic trends in the global diversity of marine invertebrates (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-07-05
    Description: It has previously been thought that there was a steep Cretaceous and Cenozoic radiation of marine invertebrates. This pattern can be replicated with a new data set of fossil occurrences representing 3.5 million specimens, but only when older analytical protocols are used. Moreover, analyses that employ sampling standardization and more robust counting methods show a modest rise in diversity with no clear trend after the mid-Cretaceous. Globally, locally, and at both high and low latitudes, diversity was less than twice as high in the Neogene as in the mid-Paleozoic. The ratio of global to local richness has changed little, and a latitudinal diversity gradient was present in the early Paleozoic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alroy, John -- Aberhan, Martin -- Bottjer, David J -- Foote, Michael -- Fursich, Franz T -- Harries, Peter J -- Hendy, Austin J W -- Holland, Steven M -- Ivany, Linda C -- Kiessling, Wolfgang -- Kosnik, Matthew A -- Marshall, Charles R -- McGowan, Alistair J -- Miller, Arnold I -- Olszewski, Thomas D -- Patzkowsky, Mark E -- Peters, Shanan E -- Villier, Loic -- Wagner, Peter J -- Bonuso, Nicole -- Borkow, Philip S -- Brenneis, Benjamin -- Clapham, Matthew E -- Fall, Leigh M -- Ferguson, Chad A -- Hanson, Victoria L -- Krug, Andrew Z -- Layou, Karen M -- Leckey, Erin H -- Nurnberg, Sabine -- Powers, Catherine M -- Sessa, Jocelyn A -- Simpson, Carl -- Tomasovych, Adam -- Visaggi, Christy C -- New York, N.Y. -- Science. 2008 Jul 4;321(5885):97-100. doi: 10.1126/science.1156963.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Ecological Analysis and Synthesis, University of California-Santa Barbara, 735 State Street, Santa Barbara, CA 93101, USA. alroy@nceas.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18599780" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Biological Evolution ; Databases, Factual ; Environment ; *Fossils ; Geography ; Geologic Sediments ; *Invertebrates/classification ; *Paleontology/methods ; Population Dynamics ; Sampling Studies ; Seawater ; Time Factors
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Revealing the history of sheep domestication using retrovirus integrations (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-04-25
    Description: The domestication of livestock represented a crucial step in human history. By using endogenous retroviruses as genetic markers, we found that sheep differentiated on the basis of their "retrotype" and morphological traits dispersed across Eurasia and Africa via separate migratory episodes. Relicts of the first migrations include the Mouflon, as well as breeds previously recognized as "primitive" on the basis of their morphology, such as the Orkney, Soay, and the Nordic short-tailed sheep now confined to the periphery of northwest Europe. A later migratory episode, involving sheep with improved production traits, shaped the great majority of present-day breeds. The ability to differentiate genetically primitive sheep from more modern breeds provides valuable insights into the history of sheep domestication.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145132/" 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/PMC3145132/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chessa, Bernardo -- Pereira, Filipe -- Arnaud, Frederick -- Amorim, Antonio -- Goyache, Felix -- Mainland, Ingrid -- Kao, Rowland R -- Pemberton, Josephine M -- Beraldi, Dario -- Stear, Michael J -- Alberti, Alberto -- Pittau, Marco -- Iannuzzi, Leopoldo -- Banabazi, Mohammad H -- Kazwala, Rudovick R -- Zhang, Ya-Ping -- Arranz, Juan J -- Ali, Bahy A -- Wang, Zhiliang -- Uzun, Metehan -- Dione, Michel M -- Olsaker, Ingrid -- Holm, Lars-Erik -- Saarma, Urmas -- Ahmad, Sohail -- Marzanov, Nurbiy -- Eythorsdottir, Emma -- Holland, Martin J -- Ajmone-Marsan, Paolo -- Bruford, Michael W -- Kantanen, Juha -- Spencer, Thomas E -- Palmarini, Massimo -- 076522/Wellcome Trust/United Kingdom -- 081696/Wellcome Trust/United Kingdom -- BB/F014643/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- HD05274/HD/NICHD NIH HHS/ -- R01 HD052745/HD/NICHD NIH HHS/ -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2009 Apr 24;324(5926):532-6. doi: 10.1126/science.1170587.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Comparative Medicine, Faculty of Veterinary Medicine, University of Glasgow, Glasgow G61 1QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19390051" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Husbandry/*history ; Animals ; Dna ; Endogenous Retroviruses/*genetics ; Genetic Markers ; History, Ancient ; Molecular Sequence Data ; Polymorphism, Genetic ; Population Dynamics ; Retroviridae/genetics ; *Sheep/classification/genetics/virology ; *Sheep, Domestic/classification/genetics/virology ; Virus Integration
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...