- Insect-Plant Interactions and Control
- Aquatic Ecosystems and Phytoplankton Dynamics
- Biological Control of Invasive Species
- Plant Parasitism and Resistance
- Plant and animal studies
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Parasite Biology and Host Interactions
- Study of Mite Species
- Insect and Pesticide Research
- Crustacean biology and ecology
- Protist diversity and phylogeny
- Constructed Wetlands for Wastewater Treatment
- Identification and Quantification in Food
- Parasites and Host Interactions
- Weed Control and Herbicide Applications
- Marine Ecology and Invasive Species
- Wildlife Ecology and Conservation
- Forensic and Genetic Research
- Insect symbiosis and bacterial influences
- Insect behavior and control techniques
- Turtle Biology and Conservation
- Insect Resistance and Genetics
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
University of Southern California
2018-2023
University of California, Davis
2016-2018
University of California, Berkeley
2011-2016
University of Otago
2008
Abstract Aim To improve our understanding of how parasitism interacts with geographical range expansions by quantifying diversity and abundance parasites in 25 populations a large marine snail, Kellet's whelk ( Kelletia kelletii ), throughout its historical recently expanded range, which are separated well‐known biogeographical boundary. Location California coast (western North America). Methods Parasitological examinations were conducted on 199 whelks from subtidal reefs ranges. We...
Abstract The intentional introduction of exotic species through classical biological control programs provides unique opportunities to examine the consequences population movement and ecological processes for genetic diversity structure introduced species. weevils Neochetina bruchi N. eichhorniae (Coleoptera: Curculionidae) have been globally invasive floating aquatic weed, Eichhornia crassipes , with variable outcomes. Here, we use importation history data from polymorphic microsatellite...
Abstract Protistan algae (phytoplankton) dominate coastal upwelling ecosystems where they form massive blooms that support the world's most important fisheries and constitute an sink for atmospheric CO 2 . Bloom initiation is well understood, but biotic abiotic forces shape short‐term dynamics in community composition are still poorly characterized. Here, high‐frequency (daily) changes relative abundance of metabolically active protistan were followed via expressed 18S V4 rRNA genes (RNA)...
1. In this laboratory study, the clutch size and handling time of Goniozus jacintae were investigated, a comparison its life‐history performance between primary secondary (laid after infanticide events) broods was carried out, lipid protein concentrations in haemolymph non‐parasitised parasitised hosts estimated. 2. It found that G. temporarily paralysed host larvae for 66 min briefly guarded brood min. The increased from two to seven with increasing larval fresh weight host, both ovicide...
Algal blooms on the Southern California coast are typically dominated by diatom and dinoflagellate taxa, governed their physiological responses to environmental cues; however, we lack a predictive understanding of controls underlying establishment persistence these distinct bloom events. In this study, examined gene expression among numerically dominant taxa during spring upwelling events compare underpinnings vs. dynamics. Diatoms, which bloomed following events, expressed genes related...