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
  • *Biological Evolution
  • American Association for the Advancement of Science (AAAS)  (7)
  • 1985-1989  (7)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (7)
Years
Year
  • 1
    facet.materialart.
    Unknown
    Taxonomic differences in the scaling of brain on body weight among mammals (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Theories for the evolution of brain weight in mammals suggest that closely related species have diverged largely as a result of selection for differences in body weight, but that differences among more distantly related species have arisen due to greater net directional selection on brain weight. This pattern of changing selection causes brain weight to evolve more slowly than body weight among closely related species, such as those in the same genus, than among more distantly related species, such as those from different families or orders; a phenomenon known as the "taxon-level effect." Thus, brain weight differs more for a given difference in body weight as the species compared are more distantly related. An alternative explanation for the taxon-level effect is proposed. Distantly related species are more likely to inhabit different ecological conditions than are more closely related species. Where the taxon-level effect occurs, brain weight appears to have evolved in response to the demands of these different ecological conditions. As a consequence, brain weight differs more among distantly related species, for any given difference in body weight, than among closely related species. This effect, rather than a progressive pattern of changing selection pressures, may account for the taxon-level effect in mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pagel, M D -- Harvey, P H -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1589-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Oxford, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Artiodactyla/anatomy & histology ; *Biological Evolution ; *Body Weight ; Brain/*anatomy & histology ; Carnivora/anatomy & histology ; Chiroptera/anatomy & histology ; Ecology ; Mammals/*anatomy & histology/classification ; Models, Biological ; Organ Size ; Primates/anatomy & histology ; Regression Analysis ; Rodentia/anatomy & histology ; Selection, Genetic ; Species Specificity ; Statistics as Topic
    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
  • 2
    facet.materialart.
    Unknown
    Chromosomal location and evolutionary rate variation in enterobacterial genes (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: The basal rate of DNA sequence evolution in enterobacteria, as seen in the extent of divergence between Escherichia coli and Salmonella typhimurium, varies greatly among genes, even when only "silent" sites are considered. The degree of divergence is clearly related to the level of gene expression, reflecting constraints on synonymous codon choice. However, where this constraint is weak, among genes not expressed at high levels, divergence is also related to the chromosomal location of the gene; it appears that genes furthest away from oriC, the origin of replication, have a mutation rate approximately two times that of genes near oriC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharp, P M -- Shields, D C -- Wolfe, K H -- Li, W H -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):808-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Trinity College, Dublin, Ireland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683084" target="_blank"〉PubMed〈/a〉
    Keywords: Bias (Epidemiology) ; *Biological Evolution ; *Chromosomes, Bacterial ; Codon/genetics ; DNA Repair ; DNA Replication ; DNA, Bacterial/genetics ; Enterobacteriaceae/*genetics/ultrastructure ; Escherichia coli/genetics/ultrastructure ; Gene Expression Regulation, Bacterial ; Genes, Bacterial ; *Mutation ; Regression Analysis ; Salmonella typhimurium/genetics/ultrastructure
    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
    Periodic extinction of families and genera (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-21
    Description: Eight major episodes of biological extinction of marine families over the past 250 million years stand significantly above local background (P 〈 0.05). These events are more pronounced when analyzed at the level of genus, and generic data exhibit additional apparent extinction events in the Aptian (Cretaceous) and Pliocene (Tertiary) Stages. Time-series analysis of these records strongly suggests a 26-million-year periodicity. This conclusion is robust even when adjusted for simultaneous testing of many trial periods. When the time series is limited to the four best-dated events (Cenomanian, Maestrichtian, upper Eocene, and middle Miocene), the hypothesis of randomness is also rejected for the 26-million-year period (P 〈 0.0002).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raup, D M -- Sepkoski, J J Jr -- New York, N.Y. -- Science. 1986 Feb 21;231:833-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geophysical Sciences, University of Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11542060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils ; Geological Phenomena ; Geology ; Marine Biology ; Paleontology/*statistics & numerical data ; *Periodicity
    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
  • 4
    facet.materialart.
    Unknown
    The evolution of catalytic function (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharp, P A -- Eisenberg, D -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):729-30, 807.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2445035" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Catalysis ; Escherichia coli/genetics ; Proteins/genetics ; RNA/*genetics ; Viruses/genetics
    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
  • 5
    facet.materialart.
    Unknown
    Biological extinction in earth history (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-28
    Description: Virtually all plant and animal species that have ever lived on the earth are extinct. For this reason alone, extinction must play an important role in the evolution of life. The five largest mass extinctions of the past 600 million years are of greatest interest, but there is also a spectrum of smaller events, many of which indicate biological systems in profound stress. Extinction may be episodic at all scales, with relatively long periods of stability alternating with short-lived extinction events. Most extinction episodes are biologically selective, and further analysis of the victims and survivors offers the greatest chance of deducing the proximal causes of extinction. A drop in sea level and climatic change are most frequently invoked to explain mass extinctions, but new theories of collisions with extraterrestrial bodies are gaining favor. Extinction may be constructive in a Darwinian sense or it may only perturb the system by eliminating those organisms that happen to be susceptible to geologically rare stresses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raup, D M -- New York, N.Y. -- Science. 1986 Mar 28;231:1528-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11542058" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Earth (Planet) ; Eukaryota ; *Fossils ; Geological Phenomena ; Geology ; Invertebrates ; Meteoroids ; Minor Planets ; *Paleontology ; Periodicity ; Reptiles
    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
  • 6
    facet.materialart.
    Unknown
    Paleolithic diet, evolution, and carcinogens (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, D L -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1633-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3120316" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Carcinogens ; *Diet ; *Haplorhini ; Humans ; *Paleontology
    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
  • 7
    facet.materialart.
    Unknown
    Evolution of mechanisms controlling mating behavior (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-10
    Description: The proximate mechanisms underlying mating behavior in naturally occurring species can be fundamentally different from those in more commonly studied laboratory and domesticated forms. In naturally occurring species, reproductive strategies are much more diverse, and mechanisms controlling behavior are correspondingly diverse. A variety of hormonal, environmental, and social cues can be used to activate mating behavior. Which cues are used by particular species depends on differences in environmental and physiological constraints imposed by particular reproductive strategies. Study of this diversity of mechanisms promises to identify specific selective forces that have shaped their evolution. This evolutionary perspective leads to widely applicable generalizations and provides a useful context within which to conceptualize differences between species, populations, and individuals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crews, D -- Moore, M C -- New York, N.Y. -- Science. 1986 Jan 10;231(4734):121-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds ; Brain/physiology ; Copulation/physiology ; Drosophila ; Female ; Gonadal Steroid Hormones/physiology ; Lizards ; Male ; Mammals ; Reproduction ; Sex Differentiation ; *Sexual Behavior, Animal ; Shrews ; Snakes
    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...