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Keyword: lichens

Aerobiology and passive restoration of biological soil crusts

Publications Posted on: December 06, 2018
Biological soil crusts (BSCs) exist commonly on soil surfaces in many arid and semiarid areas, and disturbed soil surfaces in more mesic environments. BSCs perform many essential ecological functions. Substantial resources have been invested trying to restore or replace BSCs that have been damaged by anthropogenic disturbances, with various levels of success.

Pssst … pass the algae: Succession in lichen soil crusts

Publications Posted on: October 25, 2016
Recovery of ecological communities following disturbance is a central theme of ecology and may be mediated by priority effects, in which the species or individuals that first arrive at a site alter the biotic or abiotic environment in ways that affect the establishment and growth of species or individuals that arrive at a later time.

Lichens as bioindicators of air quality

Publications Posted on: July 05, 2016
This report is the result of a workshop held in Denver, Colorado on April 9-11, 1991. It summarizes the current literature and techniques for using lichens to monitor air quality.

Lichen communities indicator results from Idaho: baseline sampling

Publications Posted on: May 12, 2016
Epiphytic lichen communities are included in the national Forest Health Monitoring (FHM) program because they help us assess resource contamination, biodiversity, and sustainability in the context of forest health. In 1996, field crews collected lichen samples on 141 field plots systematically located across all forest ownership groups in Idaho. Results presented here are the baseline assessment of the statewide field survey.

Biological soil crust response to late season prescribed fire in a Great Basin juniper woodland

Publications Posted on: September 02, 2015
Expansion of juniper on U.S. rangelands is a significant environmental concern. Prescribed fire is often recommended to control juniper. To that end, a prescribed burn was conducted in a Great Basin juniper woodland. Conditions were suboptimal; fire did not encroach into mid- or late-seral stages and was patchy in the early-seral stage. This study evaluated the effects of the burn on biological soil crusts of early-seral juniper.

Composite Burn Index (CBI) data and field photos collected for the FIRESEV project, western United States

Datasets Posted on: March 27, 2015
This set of Composite Burn Index (CBI) data was collected from 2009 to 2011 and supports several products created during the FIRESEV project, which was funded by the Joint Fire Sciences Program. FIRESEV (FIRE SEVerity mapping tools) is a comprehensive set of tools and protocols to deliver, create, and evaluate fire severity maps for all phases of fire management. This CBI data describes fire effects for the western U.S.

Using epiphytic lichens to monitor nitrogen deposition near natural gas drilling operations in the Wind River Range, WY, USA

Publications Posted on: September 17, 2013
Rapid expansion of natural gas drilling in Sublette County, WY (1999-present), has raised concerns about the potential ecological effects of enhanced atmospheric nitrogen (N) deposition to the Wind River Range (WRR) including the Class I BridgerWilderness. We sampled annual throughfall (TF) N deposition and lichen thalli N concentrations under forest canopies in four different drainages of the WRR.

Flora of the Fraser Experimental Forest, Colorado

Publications Posted on: April 26, 2011
This report lists 441 vascular plant taxa in 228 genera and 63 families encountered on the 9,300-ha Fraser Experimental Forest in central Colorado. Synonyms appearing in previous publications and other works pertaining to the Fraser Experimental Forest, as well as appropriate Colorado floras and less-technical field guides, are included. Plant communities and habitats are discussed, and a list of 54 lichens is also presented.

Lichens, ozone, and forest health - exploring cross-indicator analyses with FIA data

Publications Posted on: July 20, 2009
Does air pollution risk represented by a lichen bioindicator of air pollution, an ozone bioindicator, or a combination of both, correlate with forest health as reflected by condition of tree crowns and other variables? We conducted pilot analyses to answer this question using Forest Inventory and Analysis (FIA) data from the Sierra Nevada region of California and the New England region; they have very different environments.

Lichen community change in response to succession in aspen forests of the southern Rocky Mountains

Publications Posted on: March 05, 2009
In western North America, quaking aspen (Populus tremuloides) is the most common hardwood in montane landscapes. Fire suppression, grazing and wildlife management practices, and climate patterns of the past century are all potential threats to aspen coverage in this region. If aspen-dependent species are losing habitat, this raises concerns about their long-term viability.