Sentences with phrase «tundra ecotone»
The northern part of the North American boreal forest corresponds to the forest - tundra ecotone where trees and forests reach their northernmost distribution limits (Rowe 1972; Timoney et al. 1992; Payette et al. 2001).
http://rstb.royalsocietypublishing.org/
Left arrow indicates initial deforestation and inception of the boreal forest - tundra ecotone and right arrow corresponds to start - up of rapid deforestation after AD 1550.
Not exact matches
The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree - line or timberline.
Overview: Page 1 - 2: Introduction to Ecosystems Page 3 - 4: The Food Chain Page 5 - 6: Scales of Ecosystems Page 7 - 8: Tundra Page 9 - 10: Taiga Page 11 - 12: Temperate Forest Page 13 - 14: Rainforest Page 15 - 16: Grassland Page 17 - 18: Savanna Page 19 - 20: Desert Page 21 - 22: Marine Page 23 - 24: Freshwater Page 25 - 26: Reflection EXTRA: Compact version of the unit Keywords: Ecosystem, biome, ecotone, biosphere, biotic, herbivores, carnivores, trees, earth, nature, animals, plants, species, food chain, oceans, tundra, taiga, temperate forest, rainforest, grassland, savanna, desert, marine, fresTundra Page 9 - 10: Taiga Page 11 - 12: Temperate Forest Page 13 - 14: Rainforest Page 15 - 16: Grassland Page 17 - 18: Savanna Page 19 - 20: Desert Page 21 - 22: Marine Page 23 - 24: Freshwater Page 25 - 26: Reflection EXTRA: Compact version of the unit Keywords: Ecosystem, biome, ecotone, biosphere, biotic, herbivores, carnivores, trees, earth, nature, animals, plants, species, food chain, oceans, tundra, taiga, temperate forest, rainforest, grassland, savanna, desert, marine, frestundra, taiga, temperate forest, rainforest, grassland, savanna, desert, marine, freshwater
This rather common spatial pattern of tundra and forest communities across the ecotone is the result of long - term interactions between fire disturbance and climate (Payette & Gagnon 1985; Asselin & Payette 2006).
In other words, tree vegetation has not yet expanded to the climatic limit because of insufficient supply of larch seeds to tundra areas in the upper part of the treeline ecotone, although it is already close to this limit on some slopes.