Simplification has occurred at the level of species diversity, too.
Ortiz is not alone in emphasizing that Ramirez's originality resonates at the level of species.
Economists can contribute to an answer by estimating the 'optimal level of species conservation'.
FtsZ protein plays an essential role in Z-ring formation in E. coli and has a high level of species conservation in bacteria.
Yet the great unlearned lesson of B.S.E. and other similar brain-wasting diseases is that, at the level of species or ecosystems, it isn't quite true that protein is protein.
Researchers working in the north of England found a measureable, positive link between the level of species diversity and the psychological benefit expressed by people who used natural areas in the urban environment.
As apex predators, they are a sign of the health of the entire ecosystem — if they're flourishing, that means that every other level of species, from elk and deer on down to insects and plants, must also be healthy.
Results of both approaches indicated that, for a given level of species richness, plant biomass within cushions was higher than in the surrounding open areas.
Linker sequences are hypervariable: only similarities between MocR linkers from organisms related at the level of species or genus could be found with sequence searches.
The assay proved to successfully amplify DNA of the target fungi at the level of species; while no cross-reactivity was observed.
The theory undermined significant precepts of the study of evolution, underscoring the idea that evolution began at the level of micro-organisms long before it would be visible at the level of species.
