Determining if the new fossils belong to rudolfensis or habilis, he said, "would depend on ongoing comparisons with the original fossil assemblage" at Olduvai Gorge in Tanzania, where the first and many other habilis and contemporary specimens have been excavated.
Determining if the new fossils belong to H. rudolfensis or H. habilis, he said, "would depend on ongoing comparisons with the original fossil assemblage" at Olduvai Gorge in Tanzania, where the first and many other H. habilis and contemporary specimens have been excavated.
In addition, stable isotopes can be applied on a range of different tissues, including muscle, bone, hair and teeth, allowing their application to material which is sub-fossil, preserved or from contemporary specimens.
In Lake Victoria, fecundity was positively correlated with body size for the 1992 and contemporary specimens (Table 4).
While additional sampling of historical and contemporary specimens will be needed to further validate this hypothesis, this haplotype group achieves its highest frequency in the Bitterroot Mountains of Montana and Idaho, and it is highly divergent from other Rocky Mountain fisher haplotypes.
Other necessary precautions were taken to prevent and detect contamination by contemporary specimens, including use of extraction and PCR negative controls, PCR amplification of short, overlapping fragments (see below), and confirmation of all unique haplotype sequences by way of cloning [ 24].
They use Animal Diversity Web to gather basic information about the focal species, such as which habitats they prefer (a), after which they use an R script provided in the module to map historic and contemporary museum specimen localities (b T. speciosus) and to quantitatively examine the elevational shifts that have occurred over the past century (c).
Museum, captive (zoo) and contemporary field specimens enabled us to genotype 54 of the ~120 recognized species, including many extinct or extirpated taxa, from 14 archipelagoes.
Based on limited experience, we have found that this procedure in contemporary biopsy specimens yields enough quality RNA to generate acceptable test results, but more empirical data are needed.
We used DNA samples from contemporary and museum specimens spanning 140 years to reconstruct bottleneck history.
