Julie Yee (Former Employee)
Science and Products
Filter Total Items: 63
Behavioural cues surpass habitat factors in explaining prebreeding resource selection by a migratory diving duck Behavioural cues surpass habitat factors in explaining prebreeding resource selection by a migratory diving duck
Prebreeding habitat selection in birds can often be explained in part by habitat characteristics. However, females may also select habitats on the basis of fidelity to areas of previous reproductive success or use by conspecifics. The relative influences of sociobehavioural attributes versus habitat characteristics in habitat selection has been primarily investigated in songbirds, while...
Authors
Shawn T. O’Neil, Jeffrey M. Warren, John Y. Takekawa, Susan E. W. De La Cruz, Kyle A. Cutting, Michael W. Parker, Julie L. Yee
Resource selection and space use by sea ducks during the non-breeding season: Implications for habitat conservation planning in urbanized estuaries Resource selection and space use by sea ducks during the non-breeding season: Implications for habitat conservation planning in urbanized estuaries
Wide-ranging marine birds rely on multiple habitats for wintering, breeding, and migrating, and their conservation may be dependent on protecting networks of key areas. Urbanized estuaries are critical wintering and stopover areas for many declining sea ducks in North America; however, conservation measures within estuaries are difficult to establish given lack of knowledge about habitat...
Authors
Susan E. W. De La Cruz, John M. Eadie, A. Keith Miles, Julie Yee, Kyle A. Spragens, Eric C. Palm, John Y. Takekawa
Protection benefits desert tortoise (Gopherus agassizii) abundance: the influence of three management strategies on a threatened species Protection benefits desert tortoise (Gopherus agassizii) abundance: the influence of three management strategies on a threatened species
We surveyed an area of ∼260 km2 in the western Mojave Desert to evaluate relationships between condition of Agassiz's Desert Tortoise populations (Gopherus agassizii) and habitat on lands that have experienced three different levels of management and protection. We established 240 1-ha plots using random sampling, with 80 plots on each of the three types of managed lands. We conducted...
Authors
Kristin H. Berry, Lisa M. Lyren, Julie L. Yee, Tracy Y. Bailey
Comparative microhabitat characteristics at oviposition sites of the California red-legged frog (Rana draytonii) Comparative microhabitat characteristics at oviposition sites of the California red-legged frog (Rana draytonii)
We studied the microhabitat characteristics of 747 egg masses of the federally-threatened Rana draytonii (California red-legged frog) at eight sites in California. our study showed that a broad range of aquatic habitats are utilized by ovipositing R. draytonii, including sites with perennial and ephemeral water sources, natural and constructed wetlands, lentic and lotic hydrology, and...
Authors
Jeff A. Alvarez, David G. Cook, Julie L. Yee, Michael G. van Hattem, Darren R. Fong, Robert N. Fisher
Net primary productivity of subalpine meadows in Yosemite National Park in relation to climate variability Net primary productivity of subalpine meadows in Yosemite National Park in relation to climate variability
Subalpine meadows are some of the most ecologically important components of mountain landscapes, and primary productivity is important to the maintenance of meadow functions. Understanding how changes in primary productivity are associated with variability in moisture and temperature will become increasingly important with current and anticipated changes in climate. Our objective was to...
Authors
Peggy E. Moore, Jan W. Van Wagtendonk, Julie L. Yee, Mitchel P. McClaran, David N. Cole, Neil K. McDougald, Matthew L. Brooks
Multiple factors affect a population of Agassiz's desert tortoise (Gopherus agassizii) in the Northwestern Mojave Desert Multiple factors affect a population of Agassiz's desert tortoise (Gopherus agassizii) in the Northwestern Mojave Desert
Numerous factors have contributed to declines in populations of the federally threatened Agassiz's Desert Tortoise (Gopherus agassizii) and continue to limit recovery. In 2010, we surveyed a low-density population on a military test facility in the northwestern Mojave Desert of California, USA, to evaluate population status and identify potential factors contributing to distribution and...
Authors
Kristin H. Berry, Julie L. Yee, Ashley A. Coble, William M. Perry, Timothy A. Shields
Science and Products
Filter Total Items: 63
Behavioural cues surpass habitat factors in explaining prebreeding resource selection by a migratory diving duck Behavioural cues surpass habitat factors in explaining prebreeding resource selection by a migratory diving duck
Prebreeding habitat selection in birds can often be explained in part by habitat characteristics. However, females may also select habitats on the basis of fidelity to areas of previous reproductive success or use by conspecifics. The relative influences of sociobehavioural attributes versus habitat characteristics in habitat selection has been primarily investigated in songbirds, while...
Authors
Shawn T. O’Neil, Jeffrey M. Warren, John Y. Takekawa, Susan E. W. De La Cruz, Kyle A. Cutting, Michael W. Parker, Julie L. Yee
Resource selection and space use by sea ducks during the non-breeding season: Implications for habitat conservation planning in urbanized estuaries Resource selection and space use by sea ducks during the non-breeding season: Implications for habitat conservation planning in urbanized estuaries
Wide-ranging marine birds rely on multiple habitats for wintering, breeding, and migrating, and their conservation may be dependent on protecting networks of key areas. Urbanized estuaries are critical wintering and stopover areas for many declining sea ducks in North America; however, conservation measures within estuaries are difficult to establish given lack of knowledge about habitat...
Authors
Susan E. W. De La Cruz, John M. Eadie, A. Keith Miles, Julie Yee, Kyle A. Spragens, Eric C. Palm, John Y. Takekawa
Protection benefits desert tortoise (Gopherus agassizii) abundance: the influence of three management strategies on a threatened species Protection benefits desert tortoise (Gopherus agassizii) abundance: the influence of three management strategies on a threatened species
We surveyed an area of ∼260 km2 in the western Mojave Desert to evaluate relationships between condition of Agassiz's Desert Tortoise populations (Gopherus agassizii) and habitat on lands that have experienced three different levels of management and protection. We established 240 1-ha plots using random sampling, with 80 plots on each of the three types of managed lands. We conducted...
Authors
Kristin H. Berry, Lisa M. Lyren, Julie L. Yee, Tracy Y. Bailey
Comparative microhabitat characteristics at oviposition sites of the California red-legged frog (Rana draytonii) Comparative microhabitat characteristics at oviposition sites of the California red-legged frog (Rana draytonii)
We studied the microhabitat characteristics of 747 egg masses of the federally-threatened Rana draytonii (California red-legged frog) at eight sites in California. our study showed that a broad range of aquatic habitats are utilized by ovipositing R. draytonii, including sites with perennial and ephemeral water sources, natural and constructed wetlands, lentic and lotic hydrology, and...
Authors
Jeff A. Alvarez, David G. Cook, Julie L. Yee, Michael G. van Hattem, Darren R. Fong, Robert N. Fisher
Net primary productivity of subalpine meadows in Yosemite National Park in relation to climate variability Net primary productivity of subalpine meadows in Yosemite National Park in relation to climate variability
Subalpine meadows are some of the most ecologically important components of mountain landscapes, and primary productivity is important to the maintenance of meadow functions. Understanding how changes in primary productivity are associated with variability in moisture and temperature will become increasingly important with current and anticipated changes in climate. Our objective was to...
Authors
Peggy E. Moore, Jan W. Van Wagtendonk, Julie L. Yee, Mitchel P. McClaran, David N. Cole, Neil K. McDougald, Matthew L. Brooks
Multiple factors affect a population of Agassiz's desert tortoise (Gopherus agassizii) in the Northwestern Mojave Desert Multiple factors affect a population of Agassiz's desert tortoise (Gopherus agassizii) in the Northwestern Mojave Desert
Numerous factors have contributed to declines in populations of the federally threatened Agassiz's Desert Tortoise (Gopherus agassizii) and continue to limit recovery. In 2010, we surveyed a low-density population on a military test facility in the northwestern Mojave Desert of California, USA, to evaluate population status and identify potential factors contributing to distribution and...
Authors
Kristin H. Berry, Julie L. Yee, Ashley A. Coble, William M. Perry, Timothy A. Shields