Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of or relating to an ecological sere.
from The Century Dictionary.
- noun In geology, according to the nomenclature proposed by H. D. Rogers for the Paleozoic series in Pennsylvania, same as the Pottsville Conglomerate or Millstone-grit; No. XII. of the numerical designation of these rocks by the Pennsylvania Survey.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or pertaining to a
sere .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Kotagama says wetlands are under constant 'seral' stage change.
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Several areas of ecological importance were proposed for salvage logging, including old-growth forests with live trees greater than 2 meters (m) in diameter breast height; late-seral reserves and key watersheds previously protected under the President's Northwest forest plan; habitat previously protected because of concerns over listed or candidate species; areas abutting wilderness; sacred Native American sites; Wild and Scenic Rivers; roadless areas; and steep slopes previously removed under forest plans.
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The threatened northern spotted owl has been used as an indicator species in environmental impact assessments because its range overlaps with 39 listed or proposed species (10 of which are late-seral associates) and 1,116 total species associated with late-seral forests.
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Habitat loss within late-seral forests and aquatic areas have been extensive throughout this ecoregion.
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In addition, mid-seral subalpine forests have experienced a 35 percent decrease while late-seral montane multi-story forests have increased by 35 percent.
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This active disturbance regime has resulted in a larger proportion of younger seral stages than in areas west of the Cascade Mountains.
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At higher elevations, it is seral to subalpine fir and Engelmann spruce.
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Extensive logging and fire suppression have substantially altered natural disturbance regimes, shifting regional landscapes from those with a full range of seral stages to highly fragmented landscapes where late-seral stages are rapidly being replaced by monocultural tree plantations.
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Potential natural vegetation includes subalpine fir and Engelmann spruce, with lodgepole pine as a seral species.
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Late-seral forests in general are of national and global importance because they provide some of the last refugia for dependent species, and perform vital ecological services, including sequestration of carbon, cleansing of atmospheric pollutants, and maintenance of hydrological regimes.
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