Decline of photosynthetic capacity with leaf age in relation to leaf longevities for five tropical canopy tree species.
The data presented in this survey confirm some widely held ideas about relative longevities among species.
The idea that species have characteristic seed longevities is important in genebank scenarios, where the frequency of monitoring viability is set by arbitrary standards if biological standards are undefined.
Prospects of even greater longevity in future among the already long-lived have served to enhance concern still further.
Flexibility to add systems in the future is the key to longevity in electrical and low voltage services.
Moreover, globally many indicators are improving - health, longevity, education, infant mortality and the like.
Note first that this view does not imply any value in longevity itself.
Moreover, globally many indicators are improving - health, longevity, education, infant mortality, and the like.
