Skip to main content
Advanced Search

Filters: partyWithName: Ducks Unlimited (X) > partyWithName: Central Valley Joint Venture (X)

Folders: ROOT > ScienceBase Catalog > LC MAP - Landscape Conservation Management and Analysis Portal ( Show direct descendants )

12 results (33ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
This website offers results from the project “Impacts of climate change on ecology and habitats of waterbirds”, which evaluates projected impacts of climate, urbanization, and water management scenarios on ecology and habitats of waterfowl and other waterbirds in the Central Valley of California.The Central Valley (CVCA) of California contains some of the most important habitats for waterfowl, shorebirds, and other waterbirds in North America. Most waterbird habitats in the CVCA which include wetlands, flooded rice fields, and other agricultural lands, rely on managed surface water supplies stored in reservoirs and delivered via a complex, interconnected system to a wide array of competing water users. Downscaled...
Ducks Unlimited, Inc Introduction In addition to working with the USGS Western Ecological Research Center team led by Joe Fleskes on defining the feasibility and strategies for tracking a variety of key avian habitats in the Central Valley. Ducks Unlimited focused on mapping Central Valley rice habitats that provide large bioenergetic inputs to overwintering waterfowl and shorebirds in the region. The first year of the project characterized rice fields and their winter- flooded state in the Sacramento Valley. This report summarizes our findings and reviews our future plans to quantify foraging habitats in the Central Valley .
CVJV Implementation Plan chapter and/or chapter sections incorporating results of scenario modeling and description of method to follow to evaluate potential impacts to water supplies and habitats of future proposed changes to water supply management.
This update describes the project’s background and summarizes progress and data produced.Most waterfowl habitats in the Central Valley of California rely on managed surface water supplies stored in reservoirs and delivered via a complex system to a wide array of competing water users. Water supplies vary with snow pack, temperature, and precipitation, all of which are projected to change substantially under some global climate models; land use and water management decisions also greatly impact water supplies. Led by USGS - Western Ecological Research Center , this multi - partner project ( California Landscape Conservation Cooperative, USFWS, CVJV, California Dept. of Fish and Game, Ducks Unlimited, Delta Waterfowl,...
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 amount and quality of natural resources available for terrestrial and aquatic wildlife habitats are expected to decrease throughout the world in areas that are intensively managed for urban and agricultural uses. Changes in climate and management of increasingly limited water supplies may further impact water resources essential for sustaining habitats. In this report, we document adapting a Water Evaluation and Planning (WEAP) system model for the Central Valley of California. We demonstrate using this adapted model (WEAP-CVwh) to evaluate impacts produced from plausible future scenarios on agricultural and wetland habitats used by waterbirds and other wildlife. Processed output from WEAP-CVwh indicated varying...
Metrics used to evaluate scenario impacts and success of proposed conservation actions were provided in datasets for specific Central Valley basins. Metrics included the amount of projected available habitat area (and loss of area) across years, and resulting impacts of habitat reduction on goal waterbird populations. Metrics evaluating success of proposed habitat conservation actions primarily focused on adequacy of food supplies to support wintering waterfowl at CVJV-goal population levels. Metrics were provided for each scenario evaluated in WEAP-CVwh.
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...
Birds of the order Anseriformes, commonly referred to as waterfowl, are frequently infected by Haemosporidia of the genera Haemoproteus, Plasmodium, and Leucocytozoon via dipteran vectors. We analyzed nucleotide sequences of the Cytochrome b (Cytb) gene from parasites of these genera detected in six species of ducks from Alaska and California, USA to characterize the genetic diversity of Haemosporidia infecting waterfowl at two ends of the Pacific Americas Flyway. In addition, parasite Cytb sequences were compared to those available on a public database to investigate specificity of genetic lineages to hosts of the order Anseriformes. Haplotype and nucleotide diversity of Haemoproteus Cytb sequences was lower than...
Empirical evidence supports wild birds as playing a role in the interhemispheric exchange of bacteriaand viruses; however, data supporting the redistribution of parasites among continents are limited. Inthis study, the hypothesis that migratory birds contribute to the redistribution of parasites between continentswas tested by sampling northern pintails (Anas acuta) at locations throughout the North PacificBasin in North America and East Asia for haemosporidian infections and assessing the genetic evidencefor parasite exchange. Of 878 samples collected from birds in Alaska (USA), California (USA), and Hokkaido(Japan) during August 2011–May 2012 and screened for parasitic infections using moleculartechniques, Leucocytozoon,...
This project helps the Central Valley Joint Venture (CVJV) track gains and losses of key bird and waterfowl habitats at a landscape scale. This will allow the CVJV to effectively monitor and evaluate habitats essential to conservation planning for wildlife species. This work is important for identifying, assembling, and analyzing data for key habitats of concern and will provide a foundation for future monitoring.
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...