elevational

However, wind and snowdrift distribution are the limiting factors that influence upper tree line (defined as the elevational extent of upright trees).

Ecoregions of Wyoming (EPA) 2009

These transitional forests mark a unique and graded ecotone between the moist forests and dry forests of Costa Rica and Nicaragua, and host endemic species as well as maintain unique processes such as elevational migrations of many species.

Costa Rican seasonal moist forests 2008

Plant species are distributed along elevational and latitudinal gradients, producing singular plant species composition through out the ecoregion along the lines of elevation.

Parañá-Paraíba interior forests 2008

The eastern linework follows the elevational delineation of the montane forest of the Cordillera Oriental, from the Magdalena Valley northwards to the dry forests of the Sinú Valley, where there is a marked distinction in climate and species assemblages.

Magdalena-Urabá moist forests 2008

Delineation for this ecoregion did not follow vegetation maps as in other areas, and instead relied exclusively on expert opinion from ecoregion priority setting workshops, and the marked elevational limits to dry forests (1000m) based on cloud shadow effect.

Patía Valley dry forests 2008

Because of the archipelago-like distribution of these montane patches along the Cordillera Central, beta-diversity is high between mountains and ranges, as well as along an elevational gradient.

Talamancan montane forests 2010

The southern linework follows the Cordillera Occidental and Cordillera Central where it abuts to montane forest on an elevational delineation, and this ecoregion extends up both the Cauca and Magdalena Valleys, where it abut to dry forest habitats.

Magdalena-Urabá moist forests 2008

The striking variety of vegetation types across steep elevational gradients and among the various mountain massifs in this ecoregion have produced very high regional plant biodiversity (high beta-diversity).

Talamancan montane forests 2010

The intact altitudinal transect contained within the ACG protects an entire elevational and east-west seasonal migratory route from the Pacific coast to 2,000 m above sea level, from dry forest to cloud forest and down to Atlantic rain forest, which is critical for the range and life histories of many species of animals.

Area de Conservación Guanacaste, Costa Rica 2008

The total elevational retreat of treeline was estimated to be 500 meters (m), corresponding to a temperature decrease of 6 to 8 °C.

Climate change and forest distribution in the Arctic 2009