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The reputation of Franz Boas as a scientist declined in the decades after his death in 1942, but his reputation as a champion of human rights and an opponent of racism remained intact. More recently, however, some writers have questioned the sincerity, the results, and the political implications of his anthropology and his work against racism and ethnocentrism. Others have been critical of his relations with colleagues and students such as Ella Deloria and Zora Neale Hurston. In this essay I discuss some of these claims and present a more positive view. Franz Boas was passionately and consistently concerned about human rights and individual liberty, freedom of inquiry and speech, equality of opportunity, and the defeat of prejudice and chauvinism. He struggled for a lifetime to advance a science that would serve humanity, and he was as much of a humanitarian in private as he was in public. [Boas, political struggles, human relations] 相似文献
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Franz Boas was responsible for obtaining anthropometric data from approximately 27,000 subjects living around the turn-of-the-century. The subjects are of Native American, Siberian and European ancestry. These data have been entered into databases and are available for research. This paper describes the circumstances under which these data were collected and discusses their research potential. 相似文献
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L. Verburgt J. W. H. Ferguson T. Weber 《Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology》2008,194(1):79-96
Since population-level variation in female mating preferences can shape intraspecific communication systems within the context
of sexual selection it is essential to quantify these preferences and their sources of variation. We calculated individual
female response functions for four male calling song traits in the field cricket Gryllus bimaculatus, by performing untethered phonotaxis measurements on a spherical locomotor compensator (Kramer treadmill). Firstly, we quantify
the population-level sources of phonotactic variation and correct for factors that adversely affect this measurement. Secondly,
we develop methodology for the characterisation of individual female phonotactic response functions suitable for population-level
analyses and demonstrate the applicability of our method with respect to recent literature on Orthopteran acoustic communication.
Phonotaxis towards a preferred stimulus on different occasions is highly repeatable, with lower repeatabilities away from
the most preferred signal traits. For certain male signal traits, female preference and selectivity are highly repeatable.
Although phonotactic response magnitude deteriorated with age, preference functions of females remained the same during their
lifetimes. Finally, the limitations of measuring phonotaxis using a spherical locomotor compensator are described and discussed
with respect to the estimation of the selectivity of female response. 相似文献
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Variation of wing venation in Elachistidae (Lepidoptera: Gelechioidea): methodology and implications to systematics 总被引:2,自引:0,他引:2
We introduce a method to transform wing venation data to a numerical form so that the venation pattern can be analysed and compared regardless of wing size and displacement of the pattern. We use the method for assessing the intraspecific variation and asymmetry within the individual of relative positions of forewing veins in ten species of elachistid moths. Both the intraspecific variation and intra-individual asymmetry were found to be greater than the differences frequently used as systematic characters on various levels within Elachistidae, and to some extent in other Lepidoptera. At least in Elachistidae, major alterations to the current classification will have to be made. Wing characters subject to intraspecific variation should not be used to delimit groups unless they are based on examination of population samples and supported by other characters. 相似文献
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Ohne Zusammenfassung 相似文献
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S. Dahle N. A. Anisimova R. Palerud P. E. Renaud T. H. Pearson G. G. Matishov 《Polar Biology》2009,32(2):169-180
Benthic fauna of the deeper waters (50–320 m) of the Franz Josef Land archipelago sampled in August 1992 using standard western
techniques is described and compared with earlier Russian studies of the archipelago. Three faunal assemblages are recognised
at depth ranges between 50–150, 150–300, and >300 m depth. Their distributions are related to depth and to different water
masses derived from a mixture of Barents Sea water entering from the south at intermediate depths (20–150 m), and Atlantic
water from the north below 300 m. The recorded faunal diversity and biomass is as high as or higher than that from comparable
Arctic and northern boreal areas. Comparisons are also made with a complimentary Russian survey in the same area using different
techniques. The Russian work collected larger organisms most effectively, whereas the present work recorded the smaller taxa
more efficiently. Russian surveys provide complementary data to western studies, but care must be taken when comparing studies
as they reflect biases in sampling gear and scientific emphasis. These data intercalibrations are important as Russian archives
contain a wealth of information that, if used correctly in association with western data sources, will be useful in environmental
monitoring studies as human activities increase in the Eurasian Arctic.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
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