Assessing long-term changes in aquatic ecosystems near a small conventional oil and gas operation in the Cameron Hills, southern Northwest Territories, Canada

Coleman, Kristen A.; Palmer, Michael; Korosi, Jennifer B.; Thienpont, Joshua R.; Blais, Jules M.; Smol, John P.

doi:10.1127/fal/2019/1191

Cited by 1 publication

(1 citation statement)

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“…Many emerging changes in lake ecosystems are the result of complex interactions among a multitude of climatic factors, in addition to human activities and lake characteristics. The influence of climate remains persistently detectable, however, even across lakes also affected by factors such as oil and gas extraction 162 , forest harvest 163,164 and invasive species 164 . Human impacts on terrestrial nutrient cycles are among the most prevalent interacting factors, and the combination of increases in both nutrient inputs and temperature could be syner gistic, leading to hypoxic conditions and influencing community structure and biodiversity 165,166 and the fre quency, intensity, extent and duration of harmful algal blooms 138,167 .…”

Section: Implications For Lake Ecosystemsmentioning

confidence: 99%

Global lake responses to climate change

Woolway

Kraemer

Lenters

et al. 2020

Nat Rev Earth Environ

817

391

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| Climate change is one of the most severe threats to global lake ecosystems. Lake surface conditions, such as ice cover, surface temperature, evaporation and water level, respond dramatically to this threat, as observed in recent decades. In this Review, we discuss physical lake variables and their responses to climate change. Decreases in winter ice cover and increases in lake surface temperature modify lake mixing regimes and accelerate lake evaporation. Where not balanced by increased mean precipitation or inflow, higher evaporation rates will favour a decrease in lake level and surface water extent. Together with increases in extreme-precipitation events, these lake responses will impact lake ecosystems, changing water quantity and quality, food provisioning, recreational opportunities and transportation. Future research opportunities, including enhanced observation of lake variables from space (particularly for small water bodies), improved in situ lake monitoring and the development of advanced modelling techniques to predict lake processes, will improve our global understanding of lake responses to a changing climate.

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