A5000898868- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Freshwater macroinvertebrate diversity and ecology
- Species Distribution and Climate Change
- Lepidoptera: Biology and Taxonomy
- Ecology and Vegetation Dynamics Studies
- Fish Ecology and Management Studies
- Forest Insect Ecology and Management
- Animal Behavior and Reproduction
- Coleoptera Taxonomy and Distribution
- Aquatic Invertebrate Ecology and Behavior
- Advanced Image and Video Retrieval Techniques
- Forest Management and Policy
- Animal and Plant Science Education
- Conservation, Biodiversity, and Resource Management
- Environmental DNA in Biodiversity Studies
- Amphibian and Reptile Biology
- Forest Ecology and Biodiversity Studies
- Epigenetics and DNA Methylation
- Hedgehog Signaling Pathway Studies
- Evolution and Genetic Dynamics
San Francisco State University
1981-2021
University of California, Santa Cruz
2009
Honey bee colonies are subject to numerous pathogens and parasites. Interaction among multiple parasites is the proposed cause for Colony Collapse Disorder (CCD), a syndrome characterized by worker bees abandoning their hive. Here we provide first documentation that phorid fly Apocephalus borealis, previously known parasitize bumble bees, also infects eventually kills honey may pose an emerging threat North American apiculture. Parasitized show hive abandonment behavior, leaving hives at...
Sexual-selection theory makes two predictions. (1) Males usually vary more in mating success than do females (the Bateman principle), and this difference should be pronounced sexually dimorphic, polygamous species non-dimorphic, monogamous ones. (2) Brightly colored males trade an increased risk of predation for greater experience higher mortality cryptically females. We tested these predictions by comparing lifetime rates between Ischnura gemina, a damselfly. Contrary to prediction, we...
Abstract 1. Understanding species‐specific habitat requirements is important in insect ecology. Co‐occurrence of closely related species can provide insight into microhabitat segregation. Tiger beetles are well suited for such studies, as they occur multi‐species assemblages, exhibit requirements, and sensitive to anthropogenic modifications the environment. 2. This study investigated ovipositional choice two sympatric tiger at Point Reyes National Seashore, California, U.S.A., evaluates how...
Journal Article Hybridization between Two Damselfly Species (Odonata: Coenagrionidae): Morphometric and Genitalic Differentiation Get access Joan M. Leong, Leong 1Department of Biology, San Francisco State University, Francisco, CA 94132.; Ecology Graduate Group Department Entomology, University California, Davis, 95616. Search for other works by this author on: Oxford Academic Google Scholar John E. Hafernik, Jr. Annals the Entomological Society America, Volume 85, Issue 6, 1 November 1992,...
The biology, taxonomy and distribution of the two species Smi- craulax Pierce are reviewed, with some new data being incorporated into each these areas. Diagnostic characters discussed illustrated. pupa S. tuberculatus is described illustrated for first time. Both Smicraulax known to be associated Phoradendron. INTRODUCTION. In an attempt by one us (H. R. Burke) establish limits genus Anthonomus Germar, it has been necessary review all available supra-specific groups in tribe Anthonomini....
Abstract Apocephalus borealis is a parasitoid of hymenopterans native to North America that also attacks introduced honey bees ( Apis mellifera ). Parasitism by this species has been associated with infested absconding the hive and dying outside. The flies can harbour viral infections nosematosis. Recently, nucleotide sequences identical A. were reported from bulk screenings Belgium South Korea, although no adult have collected. To predict potential invasion risk across world, we constructed...
Insect Conservation. A. J. Stewart, T. R. New, and O. Lewis , editors . 2007 CABI Wallingford, Oxfordshire United Kingdom 470 xiii+457 pp. $190 (hardcover) ISBN 978-1-84593-254-1 It is exciting to have a new, comprehensive book on insect conservation biology that brings together 55 leading researchers in the field covers broad range of topics. Over 2 decades ago E. Wilson pointed out importance “the little things run world” first volume Conservation Biology (Wilson 1987). Nevertheless, most...
The long-term goals of the recently started Biomedia project at SFSU are to provide multimedia information systems and applications for research education needs several projects in Biology Department. These involve a considerable amount images image sequence data, addition traditional text, genomic, experimental measurement data. Our will allow biology researchers students store, index, annotate, search, visualize, analyze, collaborate, share large heterogeneous biomedical initial focus...