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Keyword: phenology

Timing It Right: Maximizing Range Management Effectiveness with PhenoMap

Documents and Media Posted on: January 27, 2021
PhenoMap is a new Web-based tool that managers can use to assess the production and location of high-quality forage. It uses satellite imagery to address the need for near-real-time information about plant life cycle events over large spatial areas. Document Type: Other Documents

PhenoMap: Providing weekly vegetation development monitoring for effective management

Events Posted on: December 03, 2020
In this webinar, Jackie Ott joined the Pacific Northwest Research Station's Charlie Schrader-Patton and Nancy Grulke to discuss PhenoMap, an interactive tool for managers to view local and regional changes in phenology.


Tools Posted on: September 01, 2020
PhenoMap is a web browser mapping application that delivers weekly vegetation ‘greenness’ from satellite data across all lands in the conterminous United States. This information can be used by managers to support tactical management decisions and monitor areas ranging from 15 acres to the landscape level.

Monitoring weekly changes in phenology remotely across the western United States

Science Spotlights Posted on: August 31, 2020
PhenoMap monitors weekly changes in phenology (green-up and brown-down) across the western United States via satellite.  Weekly satellite values of “greenness” successfully tracked changes in phenology documented by phenology cameras in grasslands, shrublands, deciduous broadleaf, and mixed forests but demonstrated the difficulty of tracking changes in phenology of evergreen needleleaf forests.

Monitoring land surface phenology in near real time by using PhenoMap

Publications Posted on: February 21, 2020
Monitoring vegetation phenology is important for managers at several scales. Across decades, changes in the timing, pattern, and duration of significant life cycle events for plant groups can foreshadow shifts in species assemblages that can affect ecosystem services.

Sampling herbaceous native vegetation with an electronic capacitance instrument

Publications Posted on: January 22, 2020
Dry matter yields of herbaceous native vegetation were effectively estimated with electronic herbage meters. Yields were estimated on vegetation types varying from a low-elevation annual type to a high-elevation alpine type. Phenology, dead organic matter, plant stature, composition, and meter placement within the vegetation affected efficiency of yield estimates. Double sampling techniques are necessary.

Will climate warming be good or bad for mountain pine beetles?

Science Spotlights Posted on: August 21, 2019
Insects are expected to be favored by climate change as warm winters increase survival and warm summers speed up development. Many species, however, have adapted to seasonal aspects of their environment and warming that occurs too fast may disrupt their way of life. A research-based temperature-driven model suggests that within the next few decades mountain pine beetle range retraction may occur in the United States as its lifecycle is disrupted by excessive warming. 

Using expressed behaviour of coho salmon (Oncorhynchus kisutch) to evaluate the vulnerability of upriver migrants under future hydrological regimes: Management implications and conservation planning

Publications Posted on: July 29, 2019
1. Globally, river systems have been extensively modified through alterations in riverscapes and flow regimes, reducing their capacity to absorb geophysical and environmental changes.

Modeling mountain pine beetle (Dendroctonus ponderosae) oviposition

Publications Posted on: July 08, 2019
Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae, Scolytinae), is a significant forest disturbance agent with a widespread distribution in western North America. Population success is influenced by temperatures that drive phenology and ultimately the adult emergence synchrony required to mass attack and kill host trees during outbreaks.

Ips typographus and Dendroctonus ponderosae models project thermal suitability for intra- and inter-continental establishment in a changing climate

Publications Posted on: July 08, 2019
Climate change is altering legacies of native insect-caused disturbances and contributing to non-native invasions globally. Many insect fitness traits are temperature dependent and projected climatic changes are expected to cause continued alterations in insect-caused tree mortality, with uncertain consequences for forest ecosystems and their management.