geographical variation


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Related to geographical variation: individual variation

geographical variation

any variation that occurs in spatially separated populations of species.
References in periodicals archive ?
Based on our results, Atylodes genei exhibits a clear pattern of sexual shape dimorphism characterised by larger heads, limbs and tail in males, albeit with some geographical variation. Previous research (Lanza et al.
Keeping in view the importance of spinosad with respect to environmental safety, low mammalian toxicity, and potential as a grain protectant, the present study was planned to evaluate geographical variation in the susceptibility to spinosad in laboratory and field strains of T.
Our study aims to find out the relative frequencies and age distribution of various malignant orbital tumors and compare their geographical variation. This can help to determine the trend of these tumors in this part of the world.
In this study however the granulosa cell tumours comprised 24% of all malignant ovarian tumours, a considerably higher proportion than that in the previously mentioned study (11), again lending some credence to geographical variations in the types of ovarian tumour.
Selenium is an essential micronutrient for human health but due to differing soil levels and resultant food content, there is great geographical variation in dietary selenium intake worldwide.
Seasonal and geographical variation of Heteropyxis natalensis essential oil and the effect there of on the antimicrobial activity.
"The geographical variation in healthcare provision demonstrates a clear divide between London and the rest of the UK in attitudes towards staff health," said Mike Blake, Director at PMI Health Group.
Its long latency and geographical variation suggest the possibility of prevention or postponement of onset by dietary modification.
In order to observe the geographical variation in climate change across Europe, the researchers used temperature records stretching back to 1950 to create a gridded dataset of observations.
al [4] stated that there exist a localized variation in the wing shape variation among the species Neurothemis dragonflies but it did not include if there is intra-specific geographical variation of Neurothemis dragonflies.
Based on this geographical variation, the notion of "Europe" that is presented varies from writer to writer.
The articles are in the last half of the book and discuss general considerations, flight style, size and shape, plumage, geographical variation, molting, similar species, status and distribution, migration, and vocalizations.

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