Despite augmentation stocking efforts, wild populations of razorback suckers (Xyrauchen texanus) continue to decline. Endangered razorback suckers are commonly raised in off-channel ponds until maturity (approximately 300 mm TL) and then stocked into the Colorado River or its tributaries. After fish are stocked, they commonly move large distances downstream. We […]
Fire activity is changing dramatically across the globe, with uncertain effects on ecosystem processes, especially below-ground. Fire-driven losses of soil carbon (C) are often assumed to occur primarily in the upper soil layers because the repeated combustion of above-ground biomass limits organic matter inputs into surface soil. However, C losses […]
Piling and burning is widely used to dispose of unmerchantable debris resulting from thinning in forests throughout the western United States. Quite often more piles are created than are burned in a given year, however, causing piles to persist, accumulate, and age on the landscape. The effects of burning piles […]
Snow is important for local to global climate and surface hydrology, but spatial and temporal heterogeneity in the extent of snow cover make accurate, fine-scale mapping and monitoring of snow an enormous challenge. We took 184,453 daily near-surface images acquired by 133 automated cameras and processed them using crowdsourcing and […]
The Tundra Trait Team (TTT) database includes field-based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical questions about plant strategy and trade-offs, trait?environment relationships and environmental filtering, and trait variation across spatial scales, […]
Partitioning of evapotranspiration (ET) into biological component transpiration (T) and non-biological component evaporation (E) is crucial in understanding the impact of environmental change on ecosystems and water resources. However, direct measurement of transpiration is still challenging. In this paper, an optimality-based ecohydrological model named Vegetation Optimality Model (VOM) is applied […]
A mini-symposium and short training course on ‘New Advances in Land Carbon Cycle Modeling’ was held May 20-26, 2018 at Northern Arizona University in Flagstaff, USA. The mini-symposium and short training course were organized by ECOSS professor Yiqi Luo and Research Associate Lifen Jiang and focused on new theory on […]
Nitrogen isotopes in tree rings record the history of the nitrogen cycle—the critical nutrient that limits growth in many US forests. ECOSS faculty member Michelle Mack, along with colleagues from seven other institutions, recently published a paper that shows nitrogen availability in US forests declining over the past century, with […]
Tonight at 6:30 PM, please join us at The Green Room for “Accurate Passion: Metaphor and Meaning in Scientific Art” with Victor Leshyk and Dr. Bruce Hungate. In this image-heavy presentation which shares a multiyear portfolio of his artwork, Scientific Illustrator Victor Leshyk discusses the challenges and goals of modern science communication. […]
Dams impound the majority of rivers and provide important societal benefits, especially daily water releases that enable on-peak hydroelectricity generation. Such “hydropeaking” is common worldwide, but its downstream impacts remain unclear. We evaluated the response of aquatic insects, a cornerstone of river food webs, to hydropeaking using a life history–hydrodynamic […]