A5005250575- Fish Ecology and Management Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Species Distribution and Climate Change
- Isotope Analysis in Ecology
- Freshwater macroinvertebrate diversity and ecology
- Physiological and biochemical adaptations
- Marine and coastal ecosystems
- Plant and animal studies
- Animal Behavior and Reproduction
- Atmospheric and Environmental Gas Dynamics
- Fire effects on ecosystems
- Coastal wetland ecosystem dynamics
- Evolutionary Game Theory and Cooperation
- Microbial Community Ecology and Physiology
- Land Use and Ecosystem Services
- Ecosystem dynamics and resilience
- Ecology and Vegetation Dynamics Studies
- Evolution and Genetic Dynamics
- Soil and Water Nutrient Dynamics
- Smart Materials for Construction
- Environmental Toxicology and Ecotoxicology
- Biomedical and Engineering Education
- Marine Biology and Ecology Research
- Interdisciplinary Research and Collaboration
- Aquatic Invertebrate Ecology and Behavior
University of California, Irvine
2019-2025
Health First
2022
University of California, Santa Cruz
2017-2021
University of California, San Diego
2018-2020
Google (United States)
2016
Queen's University
2011-2014
Significance The salinity of freshwater ecosystems is increasing worldwide. Given that most organisms have no recent evolutionary history with high salinity, we expect them to a low tolerance elevated caused by road deicing salts, agricultural practices, mining operations, and climate change. Leveraging the results from network experiments conducted across North America Europe, showed salt pollution triggers massive loss important zooplankton taxa, which led increased phytoplankton biomass...
Abstract Human‐induced salinization increasingly threatens inland waters; yet we know little about the multifaceted response of lake communities to salt contamination. By conducting a coordinated mesocosm experiment across 16 sites in North America and Europe, quantified zooplankton abundance (taxonomic functional) community structure broad gradient environmentally relevant chloride concentrations, ranging from 4 ca. 1400 mg Cl − L −1 . We found that crustaceans were distinctly more...
Abstract Theory suggests that communities should be more open to the establishment of regional species following disturbance because may make resources available dispersers. However, after an initial period high invasibility, growth resident community lead monopolization local and decreased probability successful colonist establishment. During press disturbances (i.e., directional environmental change), it remains unclear what effect dispersal will have on structure if later arriving is...
Abstract The relevance of considering environmental variability for understanding and predicting biological responses to changes has resulted in a recent surge variability‐focused ecological research. However, integration findings that emerge across studies identification remaining knowledge gaps aquatic ecosystems remain critical. Here, we address these aspects by: (1) summarizing relevant terms research including the components (characteristics) key interactions when multiple factors; (2)...
Abstract As the extent and intensity of human impacts on ecosystems increase capacity to absorb these dwindles, unanticipated behavior in ecological systems—or surprises—is likely become more common. The concept surprise is broadly applied but seldom explicitly developed literature, ecologists can employ diverging language, frameworks, interpretations surprise. Here, we synthesize what has meant studying events review development use ecology. We define as a situation where expectations or...
Fluxes of matter, energy and information over space time contribute to ecosystems' functioning stability. The meta‐ecosystem framework addresses the dynamics ecosystems linked by these fluxes but, date, has focused solely on matter. Here, we synthesize existing knowledge information's effects local connected demonstrate how new hypotheses emerge from integration ecological into theory. We begin defining reviewing it flows among affect connectivity, ecosystem function dynamics. focus role...
Abstract Changing environmental conditions are affecting diversity and ecosystem function globally. Theory suggests that dispersal from a regional species pool may buffer against changes in local community after disturbance through the establishment of functionally redundant tolerant species. The spatial insurance provided by decrease time change as monopolizes resources reduces invasibility. To test for evidence hypothesis to determine role timing plays this response we conducted field...
Abstract Runoff containing road salt (sodium chloride, NaCl) causes the salinization of inland freshwaters, with potentially severe impacts on aquatic species. We performed a mesocosm experiment to test effects plankton community structure in an oligotrophic mountain lake limited history elevated concentrations. exposed communities gradient 30 concentrations ranging from 1 2900 Cl − mg L −1 for 6 weeks. Adding increased zooplankton biomass at < 500 while reducing phytoplankton biomass....
ABSTRACT To understand the impacts of climate change, we must consequences multiple and interacting timescales temperature change. While much is known about rising mean temperatures, less understood influence projected thermal variability extreme events like heatwaves on biological communities. This study investigates interaction short‐term (experimental) long‐term (historic) with zooplankton communities physiological traits. We performed a fully factorial mesocosm experiment three factors:...
Abstract The salinization of freshwaters is a global threat to aquatic biodiversity. We quantified variation in chloride (Cl − ) tolerance 19 freshwater zooplankton species four countries answer three questions: (1) How much Cl present among populations? (2) What factors predict intraspecific tolerance? (3) Must we account for accurately community conducted field mesocosm experiments at 16 sites and compiled acute LC 50 s from published laboratory studies. found high multiple species, which,...
Abstract Wildfire activity is increasing globally. The resulting smoke plumes can travel hundreds to thousands of kilometers, reflecting or scattering sunlight and depositing particles within ecosystems. Several key physical, chemical, biological processes in lakes are controlled by factors affected smoke. spatial temporal scales lake exposure extensive under‐recognized. We introduce the concept smoke‐day, number days any given exposed fire season, quantify total smoke‐day North America from...
'Ecological stoichiometry', a framework that focuses explicitly on the balances and flows of chemical elements within between organisms ecosystems, has provided crucial insights into many biological patterns processes. Despite proliferation stoichiometrically-focused studies in recent decades recognition potential for rapid evolution stoichiometric traits, prevalence genetic variation traits species remains unclear. We compiled data from 30 published common garden broad range taxa (including...
Abstract Warming, eutrophication (nutrient fertilization) and brownification (increased loading of allochthonous organic matter) are three global trends impacting lake ecosystems. However, the independent synergistic effects resource addition warming on autotrophic heterotrophic microorganisms largely unknown. In this study, we investigate interactive temperature, dissolved carbon (DOC, both autochthonous) nitrogen (N) supply, in to effect spatial variables, composition, richness, evenness...
Human activities have resulted in rising temperatures and the introduction or extirpation of top predators worldwide. Both processes generate cascading impacts throughout food webs can jeopardize important ecosystem services. We examined impact fish stocking on communities ecosystems California mountain lakes across an elevation (temperature dissolved organic carbon) gradient to determine how trophic cascades function vary with climate. Here, we show that pelagic consumer-to-producer biomass...
Northern regions are expected to experience large environmental change over the next few decades. The response of biota will depend on changes in local environment, regional processes that influence lake connectivity, and species interactions. In 2008, we surveyed 92 lakes ponds across Wapusk National Park, located southwestern shore Hudson Bay. At each site assessed water chemistry zooplankton community composition. an effort understand how aquatic ecosystems respond future change,...
Abstract Drier and hotter conditions linked with anthropogenic climate change can increase wildfire frequency severity, influencing terrestrial aquatic carbon cycles at broad spatial temporal scales. The impacts of are complex dependent on several factors that may deposition the influx dissolved organic matter (DOM) from plants into nearby systems, resulting in darkening water color. We tested effects plant biomass quantity its interaction fire (burned vs. unburned biomass) (DOC)...
Abstract Fire can lead to transitions between forest and grassland ecosystems trigger positive feedbacks climate warming by releasing CO 2 into the atmosphere. Climate change is projected increase prevalence severity of wildfires. However, fire effects on fate impact terrestrial organic matter (i.e., subsidies) in aquatic are unclear. Here, we performed a gradient design experiment freshwater pond mesocosms adding 15 different amounts burned or unburned plant detritus tracking chronology at...
Complex socio-environmental challenges require interdisciplinary, team-based research capacity. Graduate students are fundamental to building such capacity, yet formal opportunities for graduate develop these capacities and skills uncommon. This paper presents an assessment of the Pursuit (GP) program, a interdisciplinary team science training program administered by National Socio-Environmental Synthesis Center (SESYNC). Quantitative qualitative program's first cohort revealed that...
Abstract A key challenge facing ecologists and ecosystem managers is understanding what drives unexpected shifts in ecosystems limits the effectiveness of human interventions. Research that integrates analyses data from natural social systems can provide important insight for unravelling complexity these dynamics. It is, therefore, a critical step towards development evidence‐based, whole‐system management approaches. To examine our ability to influence are behaving ways, we explore three...