Barbara Kus
Biography
Dr. Barbara Kus designs and conducts original field research on avian ecology and conservation to support science-based natural resource management in national and international contexts. Dr. Kus interacts closely with federal, state, and local resource managers and regulatory agencies to prioritize research needs, and design and conduct investigations to meet those needs. As a scientist broadly trained in ecology and evolutionary biology, she focuses her research on integrating management, which is typically short-term and threats-driven, with an evolutionary perspective that seeks longer-term sustainability of species and ecosystems through maintenance of evolutionary processes required for persistence. A theme of her research is that it is strategically long-term, yielding unique datasets that incorporate spatial and temporal patterns of response to environmental variability needed for this evolutionary perspective.
RESEARCH INTERESTS
- Ecology and Conservation of Endangered Riparian Birds
- Response of Riparian Bird Communities to Habitat Restoration
- Ecology and Population Trends of Neotropical Migratory Birds
- Population Genetic Structure of Endangered Birds
- Post-wildfire Recovery of Riparian and Coastal Sage Scrub Bird Communities and Habitats
EDUCATION
- Ph.D., Ecology, University of California, Davis, CA 1985
- M.S., Ecology, University of California, Davis, CA 1980
- B.S., Anthropology, University of California, Davis, CA 1977
- B.A., Zoology, University of California, Davis, CA 1977
Science and Products
Decision-support tool for managing endangered species in the face of uncertainty
Along the Santa Clara River in California, populations of the federally and state-listed Least Bell's Vireo (Vireo bellii pusillus) are recovering from near extirpation. Habitat protection and restoration, as well as reducing brood parasitism by Brown-headed Cowbirds (...
WERC Fire Science
WERC scientists are defining the past, present, and future of wildfires for wildlife and human communities. Explore this webpage to learn about specific, ongoing projects across California and parts of Nevada.
Population Structure and Demography of the Least Bell’s Vireo and Southwestern Willow Flycatcher and Use of Restored Riparian Habitat
Riparian woodlands are highly productive ecosystems that support a disproportionately high fraction of regional biodiversity. They are also one of the most endangered terrestrial systems in temperate North America, and have been reduced to just 5% of their former extent in California and throughout the American southwest. These losses have been accompanied by steep declines in numerous plant...
Distribution, Population Genetic Structure and Demography of Coastal Cactus Wrens in Southern California
Dr. Barbara Kus studies the demography and genetic structure of remaining populations of the coastal Cactus Wren to help managers develop strategies to increase the stability of wren populations.
Distribution, Occupancy and Population Genetic Structure of California Gnatcatchers in Southern California
The coastal California Gnatcatcher (Polioptila californica californica), a federally threatened species, is considered a flagship species for southern California conservation planning. Dr. Barbara Kus collaborates with Dr. Amy Vandergast and local agencies to provide information to managers that can be used to conserve this species and its habitat.
Monitoring Avian Productivity and Survivorship (MAPS)
Dr. Barbara Kus is a partner in an international bird-monitoring program to provide long-term data throughout North America. MAPS or “Monitoring Avian Productivity and Survivorship”, uses capture and banding data to compile basic demographic parameters of migratory species, many of which are imperiled regionally and even globally. Age- and sex-specific data on annual survival, reproduction,...
San Diego Field Station
The San Diego Field Station is the site of research on golden eagles, endangered amphibians and reptiles, and more. Click on the "Science" tab for a comprehensive summary of this study site's projects.
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, southern California—2019 data summary
We surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2019, and we surveyed and conducted nest monitoring for Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) in a...
Allen, Lisa D.; Kus, Barbara E.
Recovery planning in a dynamic system: Integrating uncertainty into a decision support tool for an endangered songbird
Along the Santa Clara River in California, populations of the federally and state-listed Least Bell's Vireo (Vireo bellii pusillus) are recovering from near extirpation. Habitat protection and restoration, as well as controlling rates of brood parasitism, are thought to be the primary drivers of this recovery. Continuing successful management of...
Stanton, J.C.; Marek, Jenny; Hall, Linnea S.; Kus, Barbara E.; Alvarado, Allison; Orr, Bruce K.; Morrissette, Eric; Riege, Laura; Thogmartin, Wayne E. Recovery planning in a dynamic system: Integrating uncertainty into a decision support tool for an endangered songbird
Along the Santa Clara River in California, populations of the federally and state-listed Least Bell's Vireo (Vireo bellii pusillus) are recovering from near extirpation. Habitat protection and restoration, as well as controlling rates of brood parasitism, are thought to be the primary drivers of this recovery. Continuing successful management of...
Stanton, Jessica; Marek, Jenny; Hall, Linnea S.; Kus, Barbara E.; Alvarado, Allison; Orr, Bruce K.; Morrissette, Eric; Riege, Laura; Thogmartin, Wayne E.
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, Southern California—2018 data summary
We surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2018. Surveys were conducted from...
Allen, Lisa D.; Kus, Barbara E.
Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys in the Sepulveda Dam Basin, Los Angeles County, California—2018 data summary
Executive SummaryWe surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) in cooperation with the U.S. Army Corps of Engineers along Bull Creek, Haskell Creek, and the Los Angeles River (Sepulveda Dam project area) in Los Angeles County,...
Pottinger, Ryan E.; Kus, Barbara E.
Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys in the Hansen Dam Basin, Los Angeles County, California—2018 data summary
Executive SummaryWe surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) in cooperation with the U.S. Army Corps of Engineers along Big Tujunga Creek in the Hansen Dam Basin in Los Angeles County, California, in 2018. Four vireo surveys were conducted between...
Pottinger, Ryan E.; Kus, Barbara E. Distinguishing recent dispersal from historical genetic connectivity in the coastal California gnatcatcher
Habitat loss and fragmentation are primary threats to biodiversity worldwide. We studied the impacts of habitat loss and fragmentation on genetic connectivity and diversity among local aggregations of the California gnatcatcher (Polioptila californica californica) across its U.S. range. With a dataset of 268 individuals genotyped at 19...
Vandergast, Amy G.; Kus, Barbara E.; Preston, Kristine L.; Barr, Kelly R.
Monitoring breeding and migration of neotropical migratory birds at Naval Base Coronado, Remote Training Site, Warner Springs, San Diego County, California, 5-year summary, 2013–17
We operated a bird banding station on the Naval Base Coronado, Remote Training Site, Warner Springs (RTSWS), in northeastern San Diego County, California, during the bird breeding season (spring/summer) from 2013 to 2017 and during migration (fall) from 2013 to 2016. The station was established in spring 2013 as part of the Monitoring Avian...
Lynn, Suellen; Hall, Katie A.; Madden, Melanie C.; Kus, Barbara E.
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, southern California—2017 data summary
We surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2017. Surveys were conducted from April 13 to July 11 (LBVI) and...
Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego, southern California—2016 data summary
Executive SummaryWe surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2016. Surveys were done from March 30 to July 11...
Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.
Monitoring breeding and migration of neotropical migratory birds at Point Loma, San Diego County, California, 5-year summary, 2011–15
Executive SummaryWe operated a bird banding station on the Point Loma peninsula in western San Diego County, California, during spring and summer from 2011 to 2015. The station was established in 2010 as part of a long-term monitoring program for neotropical migratory birds during spring migration and for breeding birds as part of the Monitoring...
Lynn, Suellen; Madden, Melanie C.; Kus, Barbara E. Female-biased sex ratio, polygyny, and persistence in the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus)
Demographic changes in populations, such as skewed sex ratios, are of concern to conservationists, especially in small populations in which stochastic and other events can produce declines leading to extirpation. We documented a decline in one of the few remaining populations of Southwestern Willow Flycatcher (Empidonax traillii extimus) in...
Kus, Barbara E.; Howell, Scarlett; Wood, Dustin A.
Rare Southwestern Willow Flycatcher Banded by USGS Spotted on Nicaragua Wintering Grounds
An endangered Southwestern Willow Flycatcher banded by USGS ecologists in San Diego in July 2017 was recently spotted 3000+ miles away on its wintering grounds in Nicaragua.
Genetics Study Reveals Good News for the Southern California Population of the California Gnatcatcher
Results of a recent study by WERC scientists are providing helpful information to resource managers as they work to protect important habitat.
WERC Scientists Receive Prestigious Awards for Research on Songbirds, Mountain Ecosystems
This month, we recognize two WERC scientists for their decades of research on endangered songbirds, and the geology and hydrology of mountain ecosystems.
Declining Male Offspring Further Imperil Endangered Flycatchers in Southern California
A new study in The Condor: Ornithological Applications documents the steep decline of a population of endangered Southwestern Willow Flycatchers over 16 years—and the change in the sex ratio that has left the birds’ future hanging on a dwindling number of males.