Using remote sensing to assess the impact of beaver damming on riparian evapotranspiration in an arid landscape

  title={Using remote sensing to assess the impact of beaver damming on riparian evapotranspiration in an arid landscape},
  author={Emily Fairfax and Eric E. Small},
Ecohydrology. 2018;11:e1993. Abstract Beaver damming creates and maintains riparian ecosystems in arid regions, which are often afflicted by seasonal and multi‐year droughts. We hypothesize that beaver ponds act as buffers against the effects of drought on nearby riparian vegetation via the following mechanism: Beaver ponds formed upstream of each dam retain water during wetter parts of the year, then during drier parts of the year, they gradually release that… 
Drought Sensitivity and Trends of Riparian Vegetation Vigor in Nevada, USA (1985-2018)
A 34-year archive of Landsat satellite data is utilized to quantify the strength and timescales of vegetation responses to interannual variability in drought status and isolate and remove this influence to assess resultant trends in vegetation vigor for riparian areas across the state of Nevada, the driest state in the USA.
Smokey the Beaver: beaver-dammed riparian corridors stay green during wildfire throughout the western USA.
  • E. Fairfax, A. Whittle
  • Geography, Medicine
    Ecological applications : a publication of the Ecological Society of America
  • 2020
It is concluded that while beaver activity does not necessarily play a role in riparian vegetation post-fire resilience, it does play a significant role in Riparian vegetation fire resistance and refugia creation.
Dam builders and their works: Beaver influences on the structure and function of river corridor hydrology, geomorphology, biogeochemistry and ecosystems
Abstract Beavers (Castor fiber, Castor canadensis) are one of the most influential mammalian ecosystem engineers, heavily modifying river corridor hydrology, geomorphology, nutrient cycling, and
20 years MODIS-NDVI monitoring suggests that vegetation has increased significantly around Tehri Dam reservoir, Uttarakhand, India
  • Pulak Das
  • Environmental Science
    Remote Sensing Applications: Society and Environment
  • 2021
Abstract Large dams have immediate impact on surrounding riparian vegetation due to inundation by reservoir. The effect however may vary beyond impoundment region in an undulating topography. Present
Dam busy: beavers and their influence on the structure and function of river corridor hydrology, geomorphology, biogeochemistry and ecosystems
Beavers (castor fiber, castor canadensis) are the most influential mammalian ecosystem engineer, heavily modifying river corridors and influencing hydrology, geomorphology, nutrient cycling, and
Beaver dams attenuate flow: A multi‐site study
The effect of beaver in reducing peak flows persists for the largest storms monitored, showing that even in wet conditions, beaver dams can attenuate average flood flows by up to ca.
Beaver dam capacity of Canada’s boreal plain in response to environmental change
The results show that the potential for beaver to offset some expected climatic-induced changes to the boreal water cycle is more complex than previously thought, as there is a feedback wherein dam capacity can be reduced by changing environmental conditions.
Legacy effects of loss of beavers in the continental United States
Through their modifications of channels and floodplains, beavers are a premier example of ecosystem engineers. Historical and stratigraphic records suggest that hundreds of millions of beavers once
Can large carnivores change streams via a trophic cascade?
Ecohydrology. 2019;12:e2048. Abstract Large carnivores were persecuted in Yellowstone National Park, WY, USA, during the late 1800s and early 1900s, leading to
Beaver as agents of plant disturbance
Abstract Beaver are important agents of plant disturbance in wetland and riparian environments. They have two roles as a plant disturbance agent. They have earned the title of ecosystem engineers as


Reduced evapotranspiration from leaf beetle induced tamarisk defoliation in the Lower Virgin River using satellite‐based energy balance
Tamarisk (Tamarix spp.) is an invasive shrubby tree native to Eurasia. Since its introduction to the United States, it has established itself along Southwestern American riparian systems. Control
Vulnerability of riparian ecosystems to elevated CO2 and climate change in arid and semiarid western North America.
Riparian ecosystems, already greatly altered by water management, land development, and biological invasion, are being further altered by increasing atmospheric CO2 concentrations ([CO2]) and climate
Ecosystem Alteation of Boreal Forest Streams by Beaver (Castor Canadensis)
Beaver (Castor canadensis) alter the structure and dynamics of aquatic ecosystems with a minimum of direct energy or nutrient transfer. Through dam building and feeding activities, beaver act as a
Interannual variation of evapotranspiration from forest and grassland ecosystems in western canada in relation to drought
Abstract Climate models predict rising temperatures and more frequent and prolonged droughts, particularly in the northern hemisphere and in the Canadian Prairies. However, few studies have examined
Modeling the capacity of riverscapes to support beaver dams
Abstract The construction of beaver dams facilitates a suite of hydrologic, hydraulic, geomorphic, and ecological feedbacks that increase stream complexity and channel–floodplain connectivity that
Beaver dams and overbank floods influence groundwater–surface water interactions of a Rocky Mountain riparian area
[1] Overbank flooding is recognized by hydrologists as a key process that drives hydrogeomorphic and ecological dynamics in mountain valleys. Beaver create dams that some ecologists have assumed may
Assessing the role of climate and resource management on groundwater dependent ecosystem changes in arid environments with the Landsat archive
Abstract Groundwater dependent ecosystems (GDEs) rely on near-surface groundwater. These systems are receiving more attention with rising air temperature, prolonged drought, and where groundwater
Remote sensing of evapotranspiration over cotton using the TSEB and METRIC energy balance models
Abstract Remote sensing of evapotranspiration (ET) can help detect, map and provide guidance for crop water needs in irrigated lands. Two remote sensing ET models based on thermal infrared (TIR), the
Drought stress and recovery of riparian cottonwoods due to water table alteration along Willow Creek, Alberta
A 5-m-deep gravel pit was excavated from 1996 to 1998 in the floodplain between Willow Creek, Alberta, and a grove of balsam poplars ('cottonwoods', Populus balsamifera L.) and water level at the pit
Riparian vegetation as an indicator of riparian condition: Detecting departures from historic condition across the North American West.
An index to assess reach-scale (500 m segment) riparian vegetation condition across entire drainage networks within large, physiographically-diverse regions is presented and assessments yielded riparian condition maps that will help resource managers better prioritize sites and treatments for reach- scale conservation and restoration activities.