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Monarch butterfly and other pollinators are in trouble. Monarch butterfly habitat— including milkweed host plants and nectar food sources—has declined drastically throughout most of the United States. Observed overwinter population levels have also exhibited a long-term downward trend, suggesting a strong relationship between habitat loss and monarch population declines. Preliminary research results from a U.S. Geological Survey led effort indicate that we need a comprehensive conservation strategy that includes all land types in order to stabilize monarch populations at levels necessary to adequately minimize extinction risk—urban areas will likely play a critical role. A Landscape Conservation Design (LCD) tool...
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Monarch butterfly and other pollinators are in trouble. Monarch butterfly habitat— including milkweed host plants and nectar food sources—has declined drastically throughout most of the United States. Observed overwinter population levels have also exhibited a long-term downward trend, suggesting a strong relationship between habitat loss and monarch population declines. Preliminary research results from a U.S. Geological Survey led effort indicate that we need a comprehensive conservation strategy that includes all land types in order to stabilize monarch populations at levels necessary to adequately minimize extinction risk—urban areas will likely play a critical role. A Landscape Conservation Design (LCD) tool...
Tidal marsh habitat is at high risk of severe loss and degradation as a result of human uses, sea-level rise, changes in salinity, and more frequent and extreme storms projected by climate models. Availability of habitat is a prerequisite for long-term viability of marsh bird populations and this has been modeled in a companion California Landscape Conservation Cooperative project (Veloz et al. 2011). However, habitat alone will ensure neither resilience nor recovery of depleted and threatened populations. To provide management guidance to reduce species’ vulnerability and recover depleted populations, we developed interactive population dynamic models for four key marsh species: Black Rail, Clapper Rail, Common...
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2015_Analysis_Compare2010&2015.xlsx is an Excel file created by MBM-AK to test statistical differences between the 2010 and 2015 Alaska Trumpeter Swan Survey results.
The objective of this preliminary modeling effort was to prepare a single HexSimPLE model for the Northern Basin Pygmy rabbit population within the geographic extent of the Northwest Basin and Range landscape (Figure 1, https://www.fws.gov/science/catalog range). Population parameters derived from the literature and reviewed by the U.S. Fish and Wildlife Service (USFWS) refuges team were used to populate a simplified individual- based model (IBM) platform to develop a reasonable yet simplistic representation of pygmy rabbit movement, habitat use, and population dynamics in this landscape. This preliminary modeling effort was used to make qualitative comparisons among hypothetical land management scenarios. Results...
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Estimates of nutrient loading to the Gulf of Mexico indicate that nine states within the Mississippi River Basin are responsible for approximately 75% of all nitrogen and phosphorus delivered to the Gulf. The Mississippi Basin supports a rich assemblage of fish species; at least 25% of all species in the conterminous United States are found in the Basin. These assemblages reflect their habitats, human landscape disturbances, and fragmentation of the river network by dams. Climate also has close associations with aquatic habitat conditions and ultimately fish community composition. Climate change is anticipated to lead to additional changes in stream habitats, including changing thermal properties and flow regimes....
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Monarch butterfly and other pollinators are in trouble. Monarch butterfly habitat— including milkweed host plants and nectar food sources—has declined drastically throughout most of the United States. Observed overwinter population levels have also exhibited a long-term downward trend, suggesting a strong relationship between habitat loss and monarch population declines. Preliminary research results from a U.S. Geological Survey led effort indicate that we need a comprehensive conservation strategy that includes all land types in order to stabilize monarch populations at levels necessary to adequately minimize extinction risk—urban areas will likely play a critical role. A Landscape Conservation Design (LCD) tool...
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2010_Analysis_Trends.xlsx is an Excel file created by MBM-AK to analyze data from the 1968-2010 Alaska Trumpeter Swan Surveys to assess trends in the numbers of adult (i.e., white) swans, total swans (i.e., adults and cygnets), and broods, and the percentage of cygnets in the total swan population.
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Monarch butterfly and other pollinators are in trouble. Monarch butterfly habitat— including milkweed host plants and nectar food sources—has declined drastically throughout most of the United States. Observed overwinter population levels have also exhibited a long-term downward trend, suggesting a strong relationship between habitat loss and monarch population declines. Preliminary research results from a U.S. Geological Survey led effort indicate that we need a comprehensive conservation strategy that includes all land types in order to stabilize monarch populations at levels necessary to adequately minimize extinction risk—urban areas will likely play a critical role. A Landscape Conservation Design (LCD) tool...
Salt marsh elevation and geomorphic stability depends on mineral sedimentation. Many Mediterranean-climate salt marshes along southern California, USA coast import sediment during El Niño storm events, but sediment fluxes and mechanisms during dry weather are potentially important for marsh stability. We calculated tidal creek sediment fluxes within a highly modified, sediment-starved, 1.5-km2 salt marsh (Seal Beach) and a less modified 1-km2 marsh (Mugu) with fluvial sediment supply. We measured salt marsh plain suspended sediment concentration and vertical accretion using single stage samplers and marker horizons. At Seal Beach, a 2014 storm yielded 39 and 28 g/s mean sediment fluxes and imported 12,000 and 8800...
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A high spatial resolution storm surge model was developed for the YK Delta area to assess biological impacts of storm surges under current and future climates. Storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme.The model was assessed with respect to measured water level data at the coast and, where available, spatial extent of inundation, for 6 storms from the period 1992 to 2011. In total, inundation projections from 9 historical storms (5 from the assessment + 4 others) were developed. For each storm, an spatial inundation index (time-integral of water...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ARCHAEOLOGICAL AREAS, ARCHAEOLOGICAL AREAS, Academics & scientific researchers, COASTAL AREAS, COASTAL AREAS, All tags...
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Monarch butterfly and other pollinators are in trouble. Monarch butterfly habitat— including milkweed host plants and nectar food sources—has declined drastically throughout most of the United States. Observed overwinter population levels have also exhibited a long-term downward trend, suggesting a strong relationship between habitat loss and monarch population declines. Preliminary research results from a U.S. Geological Survey led effort indicate that we need a comprehensive conservation strategy that includes all land types in order to stabilize monarch populations at levels necessary to adequately minimize extinction risk—urban areas will likely play a critical role. A Landscape Conservation Design (LCD) tool...
The Central Valley of California is one of the most important regions for wintering waterbirds in North America despite extensive anthropogenic landscape modification and decline of historical wetlands there. Like many other mediterranean-climate ecosystems across the globe, the Central Valley has been subject to a burgeoning human population and expansion and intensification of agricultural and urban development that have impacted wildlife habitats. Future effects of urban development, changes in water supply management, and precipitation and air temperature related to global climate change on area of waterbird habitat in the Central Valley are uncertain, yet potentially substantial. Therefore, we modeled area...
The Deltares Delft3D FM (flexible mesh) model of the Bay-Delta that provides boundary conditions for the South San Francisco Bay geomorphic model, which is now a 1D model that is spatially extrapolated to 2D, was released at the Bay-Delta Conference in October 2014. The San Francisco Bay-Delta Community Model is an open source Delft3D FM model and allows for continuous development of a process-based, hydrodynamic surface water flow model of the San Francisco Bay-Delta system. The domain covers an area from Point Reyes up to the tidal limits near Sacramento and Vernalis and includes the entire Bay. A high-resolution mesh ultimately allows for detailed computations of flow (including salinity and temperature), sediment...
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As part of a suite of aquatic habitat assessments and tools designed to support conservation efforts in the Northeast region, the environmental consulting firm Downstream Strategies developed predictive models for estuarine habitat in Narragansett Bay and Long Island Sound, using winter flounder as the focal species to pilot the approach. This study describes the development of a flexible modeling process that can help scientists better understand the distribution, status, threats, and relative abundance of resources in dynamic aquatic habitats.The winter flounder results are built into the Fish Habitat Decision Support Tool website. The website also includes tutorial videos and additional help.
This tool allows users to view aquatic barriers (dams, road-stream crossings) by the relative gain in ecological value if they were removed. Users start with a consensus map of anadromous fish priorities, which was developed based on stakeholder input as part of the North Atlantic Aquatic Connectivity Collaborative (NAACC). Beyond the consensus results, interested users can create their own scenarios by filtering input barriers to limit the analysis to a given state or watershed, changing the weights of metrics according to their importance to the analysis objectives (e.g. length of upstream network connected, number of diadromous fish present, etc.) and by modeling the removal of up to 10 barriers.The link address...
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2015_Analysis_Trends.xlsx is an Excel file created by MBM-AK to analyze data from the 1968-2015 Alaska Trumpeter Swan Surveys to assess trends in the number of adult (i.e., white) swans.


map background search result map search result map Urban Monarch Austin Tools Urban Monarch Minneapolis/St Paul Tools Urban Monarch Chicago Tools Urban Monarch Kansas City Tools FishTail Future Conditions narrative Model outputs Estuarine Fish Habitat Assessment and Winter Flounder Pilot Study Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates Alaska Trumpeter Swan Survey 2015 Analysis - Compare 2010 & 2015 Alaska Trumpeter Swan Survey 2015 Analysis - Abundance Estimates Alaska Trumpeter Swan Survey 2010 Analysis - Trends Alaska Trumpeter Swan Survey 2015 Analysis - Trends Urban Monarch Austin Tools Urban Monarch Kansas City Tools Urban Monarch Minneapolis/St Paul Tools Urban Monarch Chicago Tools Model outputs Estuarine Fish Habitat Assessment and Winter Flounder Pilot Study Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates Alaska Trumpeter Swan Survey 2015 Analysis - Compare 2010 & 2015 Alaska Trumpeter Swan Survey 2015 Analysis - Abundance Estimates Alaska Trumpeter Swan Survey 2010 Analysis - Trends Alaska Trumpeter Swan Survey 2015 Analysis - Trends FishTail Future Conditions narrative