All ecdysteroid SAR studies have been considerably helped by the availability of ecdysteroid analogues (phytoecdysteroids) in certain plant species, where they occur in much higher concentrations and with greater structural variety than in arthropods.
Wood density would be measured for certain tree species where little or no data is available in order to improve AGB estimates.
Such vertical transmission is known, e.g., from scale insects or aphids living symbiotically with certain ant species, where some mutualists are actively carried by founding ant queens during the nuptial flight (Buschinger et al. 1987; Klein et al. 1992).
Aside from species conservation, knowing where certain species adapted and thrived after fires might point to areas where controlled burns would work best, she added.
According to the instructions, "This is especially important in taxonomically difficult groups like the skippers, where certain species can be reliably identified only through detailed examination of their genitalia".
"Where certain species are destroyed or seriously harmed, the values involved are incalculable.
Thus, there seems to be a bias in some species, where certain phage regions are preferentially processed to be used as CRISPR spacers.
They also suggest that the destructive power of TEs may be a significant factor in regressive evolution, a phenomenon where certain species lose features (e.g., floating aquatic plants with no roots).
This kind of competition between microbes plays a major role in framing the community structure and, in turn, helps proliferation of certain species in a given niche, where appropriate strategies help it to outcompete others [2].
There is evidence that such microbially-mediated buffering applies also to the human colonic microbiota where only certain species have the ability to convert lactate into butyrate, acetate or propionate.
