State prescription drug monitoring programs, online databases that let doctors check whether a patient is getting prescriptions from other doctors, have also helped drive declines.
These data indicate that fishing can drive declines in parasite abundance at the parasite population level by reducing the availability of habitat and resources for parasites, but less commonly affects the abundance of parasites at the infrapopulation level (within individual hosts).
"The introduction of more or new parasite infections will at a minimum exacerbate this, and could quite possibly directly drive declines".
Models of palm population dynamics parameterized with empirical data show that populations can withstand low levels of harvest and grazing, but high intensities of both activities can drive declines in population growth rates (Mandle 2012).
Furthermore, where quantified, small-scale fisheries are known to kill large numbers of non-target seabirds [34], marine mammals [35] and sea turtles [12] and to drive declines in megafauna target species [24].
Explaining the shift in the global energy mix, Citi cites a "politically driven" decline in investor appetite for coal driving the move to lower carbon forms of energy.
As in any headline effect driven decline in stock price, this may represent a dislocation from the stock's fundamentals.
For many, a lackluster libido could be biological, as our sex drives decline naturally as we age.
Moore, J. K. et al. Sustained climate warming drives declining marine biological productivity.
That drove declines in the overall white population for the decade in three of the four states.
