A5042412441- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Species Distribution and Climate Change
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Animal Ecology and Behavior Studies
- Advanced Thermodynamics and Statistical Mechanics
- Animal Behavior and Reproduction
- Ecosystem dynamics and resilience
- Data Mining Algorithms and Applications
- Service-Oriented Architecture and Web Services
- Aquatic Invertebrate Ecology and Behavior
- Vehicle License Plate Recognition
- Aquatic Ecosystems and Biodiversity
- Ecology and Vegetation Dynamics Studies
- Freshwater macroinvertebrate diversity and ecology
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Environmental Toxicology and Ecotoxicology
- Wildlife Ecology and Conservation
- Evolution and Genetic Dynamics
- Marine Toxins and Detection Methods
- Biomedical and Engineering Education
- Peatlands and Wetlands Ecology
Reed College
2018-2024
National Research and Innovation Agency
2022
National Research, Development and Innovation Office
2022
Yale University
2015-2018
Dartmouth College
2010-2015
Dartmouth Hospital
2015
Compared to the well‐studied open water of “growing” season, under‐ice conditions in lakes are characterized by low and rather constant temperature, slow movements, limited light availability, reduced exchange with surrounding landscape. These interact ice‐cover duration shape microbial processes temperate ultimately influence phenology community ecosystem processes. We review current knowledge on microorganisms seasonally frozen lakes. Specifically, we highlight how alter lake physics ways...
Laboratory measurements of physiological and demographic tolerances are important in understanding the impact climate change on species diversity; however, it has been recognized that forecasts based solely these laboratory estimates overestimate risk by omitting capacity for to utilize microclimatic variation via behavioral adjustments activity patterns or habitat choice. The complex, often context-dependent nature, microclimate utilization an impediment advancement general predictive...
Abstract Heterogeneity is increasingly recognized as a foundational characteristic of ecological systems. Under global change, understanding temporal community heterogeneity necessary for predicting the stability ecosystem functions and services. Indeed, spatial commonly used in alternative stable state theory predictor therefore an early indicator regime shifts. To evaluate whether species composition predictive communities, we analyzed 68 data sets spanning freshwater terrestrial systems...
Environmental variability is ubiquitous, but its effects on populations are not fully understood or predictable. Recent attention has focused how rapid evolution can impact ecological dynamics via adaptive trait change. However, the of change arising from plastic responses received less attention, and often assumed to optimize performance unfold a separate, faster timescale than dynamics. Challenging these assumptions, we propose that gradual plasticity important for dynamics, present study...
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 Recent increases of animal mass mortality events have coincided with substantial changes in global climate. Yet, tractable approaches that predict how climate change will accentuate occurrences these ecological catastrophes remain nascent. We compiled one the most comprehensive datasets lentic fish events, thermal tolerances affected families, and 1.2 million air water temperature profiles across 8891 north temperate lakes North America. Temperature extremes within were strongly...
Abstract Phenotypic adjustments following environmental change are ubiquitous, and trait changes arising through phenotypic plasticity often lag behind their stimuli. Evolutionary biologists seeking to understand how adaptive can evolve have extensively studied this phenomenon. However, the ecological consequences of common features plastic responses variability, including gradual (i.e., slower than pace change), underappreciated. We present a framework based on unifying concept phenotype ×...
Abstract Synchrony is broadly important to population and community dynamics due its ubiquity implications for extinction dynamics, system stability, species diversity. Investigations of synchrony in ecology have tended focus on covariance the abundances multiple a single location. Yet, importance regional environmental variation spatial processes suggests that properties, such as richness, could fluctuate synchronously across patches metacommunity, an analog synchrony. Here, we test...
"Enemy release" occurs when invading species suffer from interactions with pathogens, parasites, herbivores, or predators to a lesser degree than native due lack of shared evolutionary history. Here we provide strong support for the hypothesis that variable thermal sensitivities between consumer and its resources can generate temperature-dependent enemy release using both mathematical model field experiment. We identify three common scenarios where changes in temperature should alter based...
Many phytoplankton species have evolved induced defenses against herbivore grazers, but the effectiveness of, and costs associated with, these may depend on environmental conditions. For example, grazer chemical cues (kairomones) induce colony formation in many phytoplankton, temperature, light nutrient availability can also affect size. Little is know about how kairomones abiotic variables interact to algal defenses. Here, we investigate this interaction freshwater chlorophyte Scenedesmus...
Abstract Predicting the effects of dissolved organic matter (DOM) on pelagic food webs can be difficult because DOM modifies water column optics and have contrasting species across trophic levels. We combined large mesocosm, smaller‐scale experiments autoregressive modeling driven bu DOC concentration or optical quality (colored DOM, CDOM, measured as DOC‐specific absorbance at 320 nm, SUVA ) to assess how heterotrophic phototrophic microbial populations were altered in a temperate...
While climate change is likely to modify biological interactions between species, it not clear how altered biotic will influence specific processes such as community assembly. We show that small increases in water temperature can alter the establishment success of nonnative, tropical zooplankton Daphnia lumholtzi , and suggest a general framework for understanding species context change. compared D. native congener pulex mesocosm experiment manipulating temperature, food conditions, identity...
Mass mortality events (MMEs) are rapidly occurring, substantial population losses that transpire within a short time interval relative to the generation of affected organism. Previous work has established MMEs appear be increasing in frequency and magnitude; however, currently, there is little understanding consequences for biological communities. Here, we use theory empirical data from observed understand how impact structure dynamics To do so, build upon existing resource pulse trophic...
1. Warmer temperatures may increase cyanobacterial blooms in freshwater ecosystems, yet few ecological studies examine how increases temperature and will alter the performance of non-native species. We evaluated competitive interactions between these two drivers change influence species using native zooplankton Daphnia pulex lumholtzi as a model system. Based on literature, we hypothesised that D. would perform best warmer presence cyanobacteria. 2. Laboratory competition experiments showed...
The energy and materials that move across ecosystem boundaries influence food web structure key functions. Despite the acknowledged importance of such ecological subsidies, surprisingly little information is available regarding role environmental temperature in influencing subsidy quality response recipient ecosystem. We evaluated impacts temperature‐mediated changes leaves from deciduous trees, an important terrestrial to freshwater ecosystems, on both producer‐based detritivore‐based...
Thermal variation through space and time are prominent features of ecosystems that influence processes at multiple levels biological organization. Yet, it remains unclear how populations embedded within communities will respond to climate warming in thermally variable environments, particularly as change alters existing patterns thermal spatial temporal variability. As environmental temperatures increase above historical ranges, organisms may increasingly rely on extreme habitats effectively...
Abstract Environmental contamination of bisphenol A (BPA) is a widespread and multifaceted issue with vast ecological, social economic consequences. Thus, understanding how local environmental conditions, such as temperature, interact BPA to affect populations community dynamics remain important areas research. Here, we conduct laboratory experiments aimed at gradients both temperature concentration influence freshwater phytoplankton population growth structure. We exposed assemblages...
Abstract Inquiry‐based components of ecology curricula can be valuable, exposing students to what it means do science, from conceiving a meaningful question effectively disseminating results an audience. Here, we describe two approaches for implementing independent, remote research undergraduates enacted in the spring semester 2020 at Reed College Portland, OR, reporting case studies intermediate‐level course and interdisciplinary environmental science course. We report on both challenges as...
Abstract Understanding how altered temperature regimes affect harmful cyanobacterial bloom formation is essential for managing aquatic ecosystems amidst ongoing climate warming. This difficult because algal performance can depend on both current and past environments, as plastic physiological changes (acclimation) may lag behind environmental change. Here, we investigate variation sub‐weekly timescales affects population growth toxin production given acclimation. We studied four ecologically...