منابع مشابه
Begging at high level simultaneously impairs growth and immune response in southern shrike (Lanius meridionalis) nestlings.
Theoretical models suggest that begging should be costly in order to be evolutionarily stable. However, evidence for such a cost is contradictory (e.g. for growth costs) or scant (e.g. for immunological costs). Here, we experimentally test the existence of both costs in southern shrike (Lanius meridionalis) nestlings. Nestlings were paired by nest of origin and similar body mass. In each pair, ...
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Kaka (Nestor meridionalis meridionalis) studied in Big Bush State Forest spent 35% of their feeding time digging out Ochrocydus huttoni larvae from live mountain beech trunks (Nothofagus solandri var. cliffortioides). Larvae of O. huttoni had a high energy value compared to that of other insects. The assimilation efficiency for energy of two captive kaka was 91 j: 3% when fed a diet of O. hut/o...
متن کاملSummation by Asian Elephants (Elephas maximus)
Recent empirical evidence for complex cognition in elephants suggests that greater attention to comparative studies between non-human primates and other animals is warranted. We have previously shown that elephants possess the ability to judge the difference between two discrete quantities, and unlike other animals, their choice does not appear to be affected by distance or overall quantity. In...
متن کاملCrystal Structure of Asian Elephant ( Elephas maximus ) o Cyano - Metmyoglobin at 1 . 78 - A Resolution
The crystal structure of Asian elephant cyano-metmyoglobin which has a glutamine instead of the usual distal site histidine has been determined to high resolution. In addition to this replacement, the substitution of a conserved leucine residue in position 29(BI0) at the distal side by a phenylalanine was unambiguously identified based on the available electron density. The suspicion, that ther...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1904
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s001675680012446x