Physiological Selection and the Origin of Species
نویسندگان
چکیده
منابع مشابه
Selection and the origin of species
Do we know anything about its regulation? A little. In animal cells, components of the class I phosphatidylinositol (PI) 3-kinase pathway including Akt and Tor act as inhibitors, whereas the lipid phosphatase PTEN, class III PI 3-kinase and p70 S6 kinase appear to be positive regulators. In yeast, Tor kinase and protein kinase A are inhibitory, while PI 3kinase is required for autophagy. Many q...
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Ecological speciation is considered an adaptive response to selection for local adaptation. However, besides suitable ecological conditions, the process requires assortative mating to protect the nascent species from homogenization by gene flow. By means of a simple model, we demonstrate that disruptive ecological selection favors the evolution of sexual preferences for ornaments that signal lo...
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The past 20 years have seen a renaissance in the study of speciation. At the core of this research endeavor is the study of ecological speciation, and substantial evidence has been marshaled revealing that much of the world's biodiversity arises through this process (Seehausen, 2006; Schluter, 2009). Ecological speciation comes about when selection that differs between contrasting environments ...
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از محوری ترین اثراتی که یک فیلم سینمایی ایجاد می کند دیالوگ هایی است که هنرپیش گان فیلم میگویند. به زعم یک فیلم ساز, یک شیوه متأثر نمودن مخاطب از اثر منظوره نیروی گفتارهای گوینده, مثل نیروی عاطفی, ترس آور, غم انگیز, هیجان انگیز و غیره, است. این مطالعه به بررسی این مسأله مبادرت کرده است که آیا نیروی فراگفتاری هنرپیش گان به مثابه ی اعمال گفتاری در پنج فیلم هالیوودی در نسخه های دوبله شده باز تولید...
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ژورنال
عنوان ژورنال: Nature
سال: 1886
ISSN: 0028-0836,1476-4687
DOI: 10.1038/034468b0