On Being Small: Brain Allometry in Ants
نویسندگان
چکیده
منابع مشابه
On being small: brain allometry in ants.
Comparative neurobiologists have provided ample evidence that in vertebrates small animals have proportionally larger brains: in a double-logarithmic plot of brain weight versus body weight all data points conform quite closely to a straight line with a slope of less than one. Hence vertebrate brains scale allometrically, rather than isometrically, with body size. Here we extend the phylogeneti...
متن کاملThe Allometry of Brain Miniaturization in Ants
Extensive studies of vertebrates have shown that brain size scales to body size following power law functions. Most animals are substantially smaller than vertebrates, and extremely small animals face significant challenges relating to nervous system design and function, yet little is known about their brain allometry. Within a well-defined monophyletic taxon, Formicidae (ants), we analyzed how...
متن کاملThe allometry of brain miniaturization in ants.
Extensive studies of vertebrates have shown that brain size scales to body size following power law functions. Most animals are substantially smaller than vertebrates, and extremely small animals face significant challenges relating to nervous system design and function, yet little is known about their brain allometry. Within a well-defined monophyletic taxon, Formicidae (ants), we analyzed how...
متن کاملPlacental invasiveness and brain-body allometry in eutherian mammals.
Brain growth is a key trait in the evolution of mammalian life history. Brain development should be mediated by placentation, which determines patterns of resource transfer from mothers to fetal offspring. Eutherian placentation varies in the extent to which a maternal barrier separates fetal tissues from maternal blood. We demonstrate here that more invasive forms of placentation are associate...
متن کاملرابطه وجود و ماهیت در رساله "on being and essence"
هدف عمده ای که من در رساله خود تعقیب می کنم بررسی رابطه وجود و ماهیت از نظر توماس آکوئینی در رساله معروف خود تحت همین نام، است، که نام لاتین آن de ente et essentia می باشد و ترجمه انگلیسی آن تحت عنوان "on being and essence" است که ترجمه معمول آن به فارسی ((وجود و ماهیت)) می باشد. البته بهترین ترجمه فارسی واژه ente، ((موجودیت)) است ولی ما مطابق رسم آنرا رساله ((درباره وجود و ماهیت)) ...
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ژورنال
عنوان ژورنال: Brain, Behavior and Evolution
سال: 2007
ISSN: 1421-9743,0006-8977
DOI: 10.1159/000097057