منابع مشابه
Quick guide Social-insect fungus farming
cairostris (Cuvier’s beaked whale) and Mesoplodon densirostris (Blainville’s beaked whale). The authors find that both of these species undertake long, deep dives to capture deepwater prey. Diving is highly regular with most deep foraging dives being followed by an extended period of shallow dives and slow travel and resting near the surface. All foraging dives of both species are considerably ...
متن کاملThe population ecology and social behaviour of taxonomists.
The ecology and social habits of taxonomists (those individuals who describe new species) have significant implications for understanding how many more species there are to discover (henceforth ‘missing species’). The diversity of different taxa is interesting in itself, and determining where missing species live will be vital in setting conservation priorities. We assembled readily available d...
متن کاملStill not enough taxonomists: reply to Joppa et al.
Taxonomists are people who describe species. This work is essential for the conservation of biodiversity and for estimating how many species there are left to be discovered, the so-called missing species [1]. However, it has been claimed the science of taxonomy is in crisis [2] because researchers are afraid that the number of people describing new species is in decline [3,4]. In a recent lette...
متن کاملStable Vertical Takeoff of an Insect-Mimicking Flapping-Wing System Without Guide Implementing Inherent Pitching Stability
We briefly summarized how to design and fabricate an insect-mimicking flapping-wing system and demonstrate how to implement inherent pitching stability for stable vertical takeoff. The effect of relative locations of the Center of Gravity (CG) and the mean Aerodynamic Center (AC) on vertical flight was theoretically examined through static force balance consideration. We conducted a series of v...
متن کاملThe pygmy hog is a unique genus: 19th century taxonomists got it right first time round.
The pygmy hog, Sus salvanius, the smallest and rarest extant suid was first described as the only member of the genus Porcula. It is currently regarded as member of the genus Sus and a sister taxon of the domestic pig/Eurasian wild boar (Sus scrofa). Phylogenetic analyses of 2316 bp from three mtDNA loci (control-region, cytochrome b, 16S) by Bayesian inference and statistical testing of altern...
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ژورنال
عنوان ژورنال: Nature
سال: 1970
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2271064b0