Robert N Fisher
Dr. Robert Fisher is a conservation biologist with the U.S. Geological Survey’s Western Ecological Research Center and works as part of a large integrated team.
His focus has been on how natural systems are responding to the Anthropocene, and what types of resiliency they have or lack as it relates to maintaining ecological integrity and biodiversity. Additionally, through understanding individual species and community responses to perturbations through modern monitoring techniques, he and his team can determine appropriate management experiments or options to possibly recover resiliency. Geographically they have two foci, the first is southern California where urbanization and conservation planning bring various direct and indirect drivers of ecological change, and climate variability is currently extreme and drives landscape level drought and wildfires. Their second foci are the tropical islands of the Pacific Basin, from Palau and Papua New Guinea east to Hawai’i. These islands have also been driven by human change and are on the front line as extreme recent weather variability in the cyclone belt impact terrestrial ecosystems. Understanding how biodiversity was generated in this ecoregion is critical to managing its loss, and their team focuses across time and space (biogeography) to understand these processes utilizing molecular tools tied to expeditions of discovery in this poorly studied ecoregion.
RESEARCH INTERESTS
- Conservation biology
- Biogeography
- Modelling
- Natural history
- Speciation
- Invasive species
- Climate variability
- Anthropocene
Education and Certifications
Ph.D., Population Biology, University of California, Davis, CA 1995
M.S., Zoology, University of California, Davis, CA 1991
B.S., Biology, University of California, Irvine, CA 1988
Science and Products
Sampling design optimization and establishment of baselines for herpetofauna arrays at the Point Loma Ecological Reserve
Landscape-level connectivity in coastal southern California, USA, as assessed through carnivore habitat suitability
Microparasite assemblages of conspecific shrew populations in Southern California
Factors influencing the variation in capture rates of shrews in southern California, USA
Bat inventory of the San Diego County Multiple Species Conservation Program Area
MCB Camp Pendleton Arroyo Toad Monitoring Protocol: 1. Summary of results from a workshop on August 27, 2002; 2. Monitoring protocol and targeted studies
Bat inventory of the Point Loma Peninsula Including the Cabrillo National Monument
Parasite Analysis of Native and Non-native Fish in the Angeles National Forest
Spatial patterns in the abundance of the coastal horned lizard
Angeles and San Bernardino National Forest, Mountain Yellow-Legged Frog (Rana muscosa) Surveys, 2001
Bat inventory of Descanso district of Cleveland National Forest
The Status and Distribution of Unarmored Threespine Stickleback in the Angeles National Forest. 2001 Final Report
Science and Products
- Science
- Data
Filter Total Items: 13No Result Found
- Multimedia
- Publications
Filter Total Items: 279
Sampling design optimization and establishment of baselines for herpetofauna arrays at the Point Loma Ecological Reserve
No abstract available at this timeAuthorsA.J. Atkinson, Robert N. Fisher, C.J. Rochester, C.W. BrownLandscape-level connectivity in coastal southern California, USA, as assessed through carnivore habitat suitability
Although the fragmentation of the natural landscape of coastal southern California, USA, is accelerating, large-scale assessments of regional connectivity are lacking. Because of their large area requirements and long dispersal movements, mammalian carnivores can be effective focal species to use when evaluating landscape-level connectivity. Our goal was to make an initial assessment of the extentAuthorsRichard D. Hunter, Robert N. Fisher, Kevin R. CrooksMicroparasite assemblages of conspecific shrew populations in Southern California
The microparasite component communities of 2 species of shrews, Notiosorex crawfordi and Sorex ornatus, were investigated for the first time in 2 isolated and 3 continuous landscapes in southern California. With microscopical examination, a total of 6 parasite species was found in N. crawfordi and 8 species in S. ornatus. The highest number (5) of parasite species was detected in the lungs. The coAuthorsJ. Laakkonen, Robert N. Fisher, T. J. CaseFactors influencing the variation in capture rates of shrews in southern California, USA
We examined the temporal variation in capture rates of shrewsNotiosorex crawfordi (Coues, 1877) and Sorex ornatus (Merriam, 1895) in 20 sites representing fragmented and continuous habitats in southern California, USA. InN. crawfordi, the temporal variation was significantly correlated with the mean capture rates. Of the 6 landscape variables analyzed (size of the landscape, size of the sample areAuthorsJuha Laakkonen, Robert N. Fisher, Ted J. CaseBat inventory of the San Diego County Multiple Species Conservation Program Area
No abstract available at this timeAuthorsD.C. Stokes, C.S. Brehme, Robert N. FisherMCB Camp Pendleton Arroyo Toad Monitoring Protocol: 1. Summary of results from a workshop on August 27, 2002; 2. Monitoring protocol and targeted studies
No abstract available at this timeAuthorsA.J. Atkinson, B.S. Yang, Robert N. Fisher, E. Ervin, T. J. Case, N. Scott, H.B. ShafferBat inventory of the Point Loma Peninsula Including the Cabrillo National Monument
No abstract available at this timeAuthorsD.C. Stokes, C.S. Brehme, Robert N. FisherParasite Analysis of Native and Non-native Fish in the Angeles National Forest
No abstract available at this timeAuthorsM. Warburton, B. Kuperman, V. Matey, Robert N. FisherSpatial patterns in the abundance of the coastal horned lizard
Coastal horned lizards ( Phrynosoma coronatum) have undergone severe declines in southern California and are a candidate species for state and federal listing under the Endangered Species Act. Quantitative data on their habitat use, abundance, and distribution are lacking, however. We investigated the determinants of abundance for coastal horned lizards at multiple spatial scales throughout soutAuthorsRobert N. Fisher, Andrew V. Suarez, Ted J. CaseAngeles and San Bernardino National Forest, Mountain Yellow-Legged Frog (Rana muscosa) Surveys, 2001
No abstract available at this timeAuthorsA. Backlin, C. Haas, Robert N. FisherBat inventory of Descanso district of Cleveland National Forest
No abstract available at this timeAuthorsD.C. Stokes, Robert N. FisherThe Status and Distribution of Unarmored Threespine Stickleback in the Angeles National Forest. 2001 Final Report
No abstract available at this timeAuthorsM. Warburton, Robert N. Fisher - News
Filter Total Items: 19