What's the difference between alpestrine and subalpine?

Alpestrine

Definition:

(a.) Pertaining to the Alps, or other high mountains; as, Alpestrine diseases, etc.

Example Sentences:

Definition:

(a.) Inhabiting the somewhat high slopes and summits of mountains, but considerably below the snow line.

Example Sentences:

(1) In the adjacent alpine and subalpine areas isolates were obtained from wild rodents.
(2) Yosemite saw subalpine forests moving up into subalpine meadows over the last century and small mammals, including mice and ground squirrels, shifting 500m uphill.
(3) Morphological and density measurements were made on planktonic bacteria from a subalpine lake.
(4) At low altitudes, it likes forests, hedge-rows and heaths and at higher altitudes (Subalpine and alpine), opened area may be densely inhabited.
(5) A Rocky Mountain subalpine environment was sampled for allergenic pollen and mold spores during three growing seasons (1981-1983) using a Rotorod sampler.
(6) In this work sediments from three subalpine lakes located in Northern Italy, very close to each other but with different anthropogenic loads, were collected at several stations for determination of the classes of organic micropollutants of urban, industrial, and agricultural origin.
(7) In the subalpine zone, where the number and density of these animals in rather high, the infestation rate is greater than that in the brushwood zone.