A5041460964- Fish Ecology and Management Studies
- Freshwater macroinvertebrate diversity and ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Isotope Analysis in Ecology
- Aquatic Invertebrate Ecology and Behavior
- Hydrology and Sediment Transport Processes
- Ecology and Vegetation Dynamics Studies
- Marine and fisheries research
- Soil and Water Nutrient Dynamics
- Species Distribution and Climate Change
- Microbial Community Ecology and Physiology
- Plant and animal studies
- Hydrology and Watershed Management Studies
- Marine and coastal ecosystems
- Wildlife Ecology and Conservation
- Bacteriophages and microbial interactions
- Fish biology, ecology, and behavior
- Marine and coastal plant biology
- Animal Ecology and Behavior Studies
- Land Use and Ecosystem Services
- Environmental DNA in Biodiversity Studies
- Fish Biology and Ecology Studies
- Diatoms and Algae Research
- Geology and Paleoclimatology Research
- Environmental and Cultural Studies in Latin America and Beyond
University of California, Berkeley
2016-2025
Integra (United States)
2001-2021
Ecological Society of America
2020
University of Regina
2019-2020
University of New Mexico
1972-2019
University of Montana
2019
Duke University
2019
Griffith University
2019
Colorado State University
2019
University of North Carolina at Greensboro
2019
Mary E. Power is a professor in the Department of Integrative Biology, University California, Berkeley, CA 94720. David Tilman Ecology, Evolution, and Behavior, Minnesota, St. Paul, MN 55108. James A. Estes wildlife biologist National Biological Service, Institute Marine Science, Santa Cruz, 95064. Bruce Menge Zoology, Oregon State University, Corvallis, OR 97331. William J. Bond doctor Botany, Cape Town, Rondebosch 7700 South Africa. L. Scott Mills an assistant Wildlife Biology Program,...
Predictions of ecological response to climate change are based largely on direct climatic effects species. We show that, in a California grassland, species interactions strongly influence responses changing climate, overturning within 5 years. manipulated the seasonality and intensity rainfall over large, replicate plots accordance with projections leading models examined across several trophic levels. Changes seasonal water availability had pronounced individual species, but as...
Experimental manipulations of fish in a Northern California river during summer base flow reveal that they have large effects on predators, herbivores, and plants food webs. roach juvenile steelhead consume predatory insects fry, which feed algivorous chironomid larvae. In the presence fish, filamentous green algae are reduced to low, prostrate webs, infested with chironomids. When absence releases smaller predators suppress chironomids, algal biomass is higher, tall upright turfs become...
Striking differences in pool—to—pool distributions of an algae—grazing minnow (Campostoma anomalum), attached algae (predominantly Spirogyra sp. and Rhizoclonium sp.), bass (Micropterus salmoides M. punctulatus) are known to occur some small Oklahoma streams. This study evaluates the complementarity bass, Campostoma, at different seasons, uses in—stream experimental manipulations Campostoma determine if patterns resulted from strong interactions between predators, herbivores, algae. In a...
Damage to ecosystems and threats human health the lack of effective mitigation require new approaches mining regulation.
Bacteriophages typically have small genomes
Four species of armored catfish (Loricariidae) have size—specific depth distributions in a Panamanian stream, with larger fish deeper water. Depth do not change from the dry to rainy season, despite two— three—fold increase habitat area for loricariids. Throughout year, standing crops loricariids' attached algal food are relatively high shallow water, but decrease rapidly depth. Over 2.1 yr, large Ancistrus spinosus, most common pool—dwelling loricarriid, showed significant seasonal changes...
Lotic ecologists share a major goal of explaining the distribution and abundance biota in world's rivers streams, predicting how this will respond to change fluvial ecosystems. We discuss five areas research that would contribute our pursuit goal. For mechanistic understanding lotic community dynamics, we need more information on: 1. Physical conditions impinging on biota, measured temporal spatial scales relevant organisms. 2. Responses discharge fluctuations, including processes mediate...
A multitrophic model integrating the effects of flooding disturbance and food web interactions in rivers predicted that removing floods would cause increases predator-resistant grazing insects, which divert energy away from chain leading to predatory fish. Experimental manipulations grazers top predators, large-scale comparisons regulated unregulated rivers, verified predictions. Thus, models can successfully synthesize a variety ecological processes, conservation programs may benefit by...
Abstract Many freshwater systems receive substantial inputs of terrestrial organic matter. Terrestrially derived dissolved carbon (t‐DOC) can modify light availability, the spatial distribution primary production, heat, and oxygen in aquatic systems, as well inorganic nutrient bioavailability. It is also well‐established that some (such invertebrates fruits) provide high‐quality food resources for consumers systems. In small to moderate‐sized streams, leaf litter average approximately three...
The fundamental properties of organisms—what they are, how and where live, the biotic abiotic interactions that link them to communities ecosystems—are domain natural history. We provide examples illustrating vital importance history knowledge many disciplines, from human health food security conservation, management, recreation. then present several lines evidence showing traditional approaches support for in developed economies has declined significantly over past 40 years. Finally, we...
Eighteen years of field observations and five summer experiments in a coastal California river suggest that hydrologic regimes influence algal blooms the impacts fish on algae, cyanobacteria, invertebrates, small vertebrates. In this Mediterranean climate, rainy winters precede biologically active low‐flow season. Cladophora glomerata , filamentous green alga dominates primary producer biomass during summer, reaches peak late spring or early summer. are larger if floods preceding winter...
To develop and conduct feasibility testing of an evidence-based theory-informed model for facilitating performance feedback physicians so as to enhance their acceptance use the feedback.To (2011-2013), authors drew on earlier research which highlights not only factors that influence giving, receiving, accepting, using but also theoretical perspectives enable understanding these influences. The undertook iterative, multistage, qualitative study guided by two recognized frameworks: UK Medical...
A microchip solid-phase extraction method for purification of DNA from biological samples, such as blood, is demonstrated. Silica beads were packed into glass microchips and the immobilized with sol-gel to provide a stable reproducible solid phase onto which could be adsorbed. Optimization loading conditions established higher recovery at pH 6.1 than 7.6. This lower also allowed flow rate increased, resulting in decrease time 25 min less 15 min. Using this procedure, template genomic human...
Soils are differentiated vertically by coupled chemical, mechanical, and biological transport processes. Soil properties vary with depth, depending on the subsurface stresses, extent of mixing, balance between mass removal in solution or suspension accumulation near surface. Channels left decayed roots burrowing animals allow organic inorganic detritus precipitates to move through soil from above. Accumulation occurs at depths where small pores restrict further passage. Consecutive phases...
Journal Article Hydraulic Food-Chain Models: An approach to the study of food-web dynamics in large rivers Get access Mary E. Power, Power Search for other works by this author on: Oxford Academic Google Scholar Adrian Sun, Sun Gary Parker, Parker William Dietrich, Dietrich J. Timothy Wootton BioScience, Volume 45, Issue 3, March 1995, Pages 159–167, https://doi.org/10.2307/1312555 Published: 01 1995