This is a preview. Log in through your library . Abstract Four types of pattern in the structure of ponderosa pine forests of central Oregon can be recognized: (1) differences in relative density, ...

In a universe of unexplained phenomena, add this: a tree that leans toward the equator no matter where it grows. The Cook pine tilts northward in the southern hemisphere and southward in the northern ...

3.3 x 16.8 x 22.4 cm. (1.3 x 6.6 x 8.8 in.) ...