The Ecuadoran constitution, which was ratified in 2008, is probably the only one in the world to accord natural rights to the environment (from its Rights for Nature: "Nature, or Pachamama... has the right to persist, maintain, and regenerate its vital cycles, structure, functions, and its processes in evolution").
The nation's constitution contains the words "nature has the right to exist, persist, maintain and regenerate its vital cycles," and yet it's still common practice in much of Ecuador to throw trash out of the windows of public buses.
Common law and equity nevertheless preserved their separate identities, partly because of the different subject matter with which they often dealt and partly because lawyers persisted in maintaining the distinction.
Also, and to state the bleedin' obvious, European member states persist in maintaining the conceit that monetary union requires only very limited political and fiscal union.
Regardless of the origin, haplotypes for only a few regions have persisted, perhaps maintained by balancing selection.
Our null hypothesis was that the form of rarity exhibited by G. henleyi can persist by maintaining a high level of connectivity between populations.
However, if biased transmission is strong compared to mixing, this group will persist in maintaining the altruistic variant at high frequency, and altruism can spread through the population as a whole either due to the differential extinction or stepping stone processes discussed above.
Although this pain induction did not accelerate disease development, particularly during the onset period (until 10 days after the pathogenic T cell transfer), the pain persisted and maintained symptoms at a high level from 15 days post T cell transfer compared with sham mice.
However, these species persist and maintain a dominant canopy position in the most permanently flooded patches through increased sprouting, albeit at a reduced rate of overall biomass accumulation relative to well-drained sites.
Definitions of the niche date back to 1917, but G. Evelyn Hutchinson made conceptual advances in 1957 by introducing a widely adopted definition: "the set of biotic and abiotic conditions in which a species is able to persist and maintain stable population sizes".
