Indeed there appears to be clear evidence of this already happening in response to differing environmental selective pressures being imposed on schistosomes in Guadeloupe, with the recent adaptation of S. mansoni (back) to its rodent host (Theron 1984; Theron et al. 1992) and an associated potential decrease in risk of further human infection.
For ecological science, this is especially important since researchers working on field-based studies may have far greater difficulty in replicating experiments under differing environmental conditions than would be the case under a controlled laboratory environment [ 24].
Thus, due to differences in grazing habits, the influence of differing environmental concentrations on fish and shrimp is comparatively substantial compared to that of cockles.
It is also worth noting that 3 of the 4 differing sites were from comparisons involving the spleen, which is more likely to have varied methylation due to environmental differences resulting in differing immune system status between these individuals.
Four types of macroinvertebrate assemblages were distinguished in the urban water systems, differing in environmental conditions and values of ecological indicators.
We used the change point approach to detect shifts in fire frequency and extent in a 100-year fire dataset of two Swiss cantons (Ticino and Valais) differing in environmental, socioeconomic and legal context.
However, different locales differ in environmental conditions, making it difficult to distinguish the effects of selective differences from those of stochastic processes.
Moreover, flea abundance on dogs in Borneo differed with environmental conditions, mostly affected by housing conditions (K. Wells, unpublished data).
However, our present results are hardly comparable with those observed in Douglas fir for bud flush, which was tested under a dozen different environmental conditions, differing in elevation, latitude, moisture, temperature, day length [ 26, 28].
The several hundred domestic pig breeds officially recognized today [ 14] vary significantly in their external morphology, reflecting differing local environmental factors, husbandry practices and selection strategies.
