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Background: Yellow-cedar (Callitropsis nootkatensis) is an economically and culturally important tree of the North Pacific coastal rainforest, ranging from northern California through Southeast Alaska. The species has been in decline for many decades, particularly in the northern portion of its range (Southeast Alaska and coastal British Columbia), and is currently under consideration for listing as Threatened or Endangered. Previous work has delineated locations of yellow-cedar stands across the species range, and modeled geophysical features associated with presence of the tree.Purpose: The purpose of this project is to support refinement of a range-wide analysis of bioclimatic factors that support healthy vs....
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK-1, Academics & scientific researchers, Alaska, BIOSPHERICINDICATORS, British Columbia, All tags...
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FY2017This study addresses the need to develop treatments, soil amendments, and other site-preparation techniques that enhance germination, establishment, and development of healthy sagebrush communities. This study addressed the following objectives: (1) Determine whether seeded sagebrush established more frequently in fertile islands compared to burned shrub interspaces and locations where sagebrush was absent prior to the fire; (2) Determine whether the soil characteristics of sites and fertile islands within those sites influence sagebrush establishment patterns; and (3) Consider whether fertile island soil characteristics could be reporduced by manipulation post-fire soils in areas that had no pre-fire sagebrush....
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Rocky Mountain Research Station scientists initiated a study in the 1990s on avian distribution and habitat associations within the Sky Islands. By re-measuring vegetation and bird populations following wildfires and applying climate change models, they will assess the singular and synergistic effects of climate change and wildfire and provide strategies for managing resilient forests and conserving the avian community structure. They will also continue and expand citizen science efforts to develop a long term avian monitoring plan, as well as simulation studies to provide optimal monitoring designs for avian species to detect changes from large-scale stressors.
Wind erosion and aeolian transport processes are under studied compared to rainfall-induced erosion and sediment transport on burned landscapes. Post-fire wind erosion studies have predominantly focused on near-surface sediment transport and associated impacts such as on-site soil loss and site fertility. Downwind impacts, including air quality degradation and deposition of dust or contaminants, are also likely post-fire effects; however, quantitative field measurements of post-fire dust emissions are needed for assessment of these downwind risks. A wind erosion monitoring system was installed immediately following a desert sagebrush and grass wildfire in southeastern Idaho, USA to measure wind erosion from the burned...
Phases 1-3 (2010-2012): This project developed landscape change scenarios based upon water availability and precipitation and temperature patterns projected from downscaled models and investigated impacts of these changes on habitats and ecology of waterfowl, shorebirds, and other waterbirds in the Central Valley. This project provides critical information and support to understand and incorporate likely impacts of climatic change in conservation planning. Science Delivery Phase (2013): The goal of this work is to work with the Central Valley Joint Ventures (CVJV) to adapt the scenario modeling project results and modeling tool so they can be used by the CVJV to incorporate climate, urbanization, and water supply...
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FY2017There is an increasing concern and need for the conservation of springsnails and other endemic mollusks and for conservation of the unique spring and springbrook habitats on which they depend (Hershler et al 2014; Abele 2011). Nationwide, several of these species have been listed as endangered or threatened under provisions of the ESA; others are candidates for federal listing or are undergoing review by USFWS for possible future listing actions. These species can be particularly susceptible to localized threats and specific knowledge necessary for effective site-based conservation is often limited or lacking.Springsnail are particularly susceptible to extinction because the entire population of any single...
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The primary objective of this project is to develop a short synthesis report assessing 11 habitats, using a variety of ecological indicators. The report will be one tool that the South Atlantic LCC can use to inform decision-makers, stakeholders, and the general public about the health of South Atlantic habitats. To achieve this project, six discrete project tasks have been identified and are outlined in the next section.1) Project start-up and pre-workshop preparation: IAN will carefully review the Conservation Blueprint habitats and the indicators used to assess the health of these habitats. We will become familiar with the thresholds and data analysis that the South Atlantic LCC is using for their project. This...
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This report is published as one of a series of technical inputs to the National Climate Assessment (NCA) 2013 report. The NCA is being conducted under the auspices of the Global Change Research Act of 1990, which requires a report to the President and Congress every four years on the status of climate change science and impacts. The NCA informs the nation about already observed changes, the current status of the climate, and anticipated trends for the future. The NCA report process integrates scientific information from multiple sources and sectors to highlight key findings and significant gaps in our knowledge. Findings from the NCA provide input to federal science priorities and are used by U.S. citizens, communities,...
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Coral reefs are seriously threatened by ocean acidification and climate change impacts like coral bleaching. Importantly though, the degree of threat varies for different coral reef areas due to differences in local and regional climate drivers. Climate models are based on the scientific community’s understanding of climate drivers and were used during this project to look forward or ‘project’ conditions in coral reef areas. The projections are global maps that depict changes in acidification and the frequency and severity of the temperature stress events that cause coral bleaching. The project team found that the date by which really severe bleaching is projected to occur annually varies with latitude. Beyond this...
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Pelagic seabirds (albatrosses and petrels) find food by relying on distinct oceanographic features like transition zones, upwelling, and large eddies. These oceanographic features change intensity, distribution, and duration during El Niño/La Niña events resulting in poor breeding performance in seabirds. Climate models predict that these perturbations will last longer, be more variable, and in some cases, cause major shifts in oceanographic regimes. We analyzed our decade-­‐long dataset of tracked Laysan and black-­‐footed albatrosses (N = 192 individual trips) the breed in the Northwest Hawaiian Islands to investigate the mechanistic role that oceanography plays in affecting the foraging distributions and its...
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This study focused on sensitivity of high-elevation ecosystems in Hawai‘i to climate change. These Hawaiian ecosystems are becoming warmer and drier, and are relevant because they house many rare species, represent the last remaining stretches of uninvaded landscapes, and include wao akua – the small-statured cloud forests of great cultural significance that are the ‘realm of the gods’. Rapid climate change here presents a disproportionately high climate change impact risk. We provided models that relate current, past, and future distribution of plant species from 6000 – 7500’ feet in elevation on Haleakalā, to mean climate, extreme drought events, and soil properties. We constructed 24 models of current vegetation...
map background search result map search result map Assessing Large-Scale Effects of Wildfire and Climate Change on Avian Communities and Habitats in the Sky Islands, Arizona Future Distribution of Cloud Forests and Associated Species in Hawaii Responses of Hawaiian Albatrosses to Environmental Change Pacific Islands Regional Climate Assessment Integrating detailed assessments of climate threats on Pacific coral reefs and responses of traditional Hawaiian communities into management planning Synthesis of South Atlantic ecosystem health indicators Yellow-cedar decline and recovery: Climate modeling and data assimilation Microsite Soil Characteristics Influence Sagebrush Restoration Success Development of a Regional Springsnail Conservation Strategy Assessing Large-Scale Effects of Wildfire and Climate Change on Avian Communities and Habitats in the Sky Islands, Arizona Yellow-cedar decline and recovery: Climate modeling and data assimilation Future Distribution of Cloud Forests and Associated Species in Hawaii Development of a Regional Springsnail Conservation Strategy Microsite Soil Characteristics Influence Sagebrush Restoration Success Synthesis of South Atlantic ecosystem health indicators Responses of Hawaiian Albatrosses to Environmental Change Pacific Islands Regional Climate Assessment Integrating detailed assessments of climate threats on Pacific coral reefs and responses of traditional Hawaiian communities into management planning