episodic

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R/V Roger Revelle at sea, one of the research vessels CCE uses to investigate primary production, carbon export,
and plankton food web structure. SIO Ship Operations

iron supply

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Sampling with a Trace Metal-clean rosette. K. Barbeau lab

el niño and warm

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Pleuronocodes planipes, the pelagic red crab, which increases markedly in abundance in the CCE region during most El Niños. M. Stukel

double integration

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The Integrated Pacific Decadal Oscillation index (PDO, red) nicely predicts the variation in an important species of krill (Nyctiphanes simplex, blue) in the CCE site. Di Lorenzo & Ohman, 2013

optimized satellite

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Satellite-estimated Carbon Export Flux (mg C m-2 d-1) from the new CCE-LTER MERGED product. M. Kahru

browsing by vertebrate herbivores

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Browsing by snowshoe hares and moose have dramatic top-down influences on vegetation composition, successional dynamics, and ecosystem function throughout interior Alaska. Knut Kielland

longer snow free season

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Recent models indicate that lengthening of the snow-free season and associated declines in surface albedo constitutes the largest positive feedback to climate warming in the boreal forest. Roger Ruess

thawing permafrost

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Increases in air temperatures and depth of insulating snow cover during winter are accelerating the rate of permafrost thaw. In areas of ice-rich permafrost, widespread thermokarst is having significant consequences for biogeochemical cycling and surface hydrology. Ted Schuur

severe fires shifts

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A recent shift in the Alaska fire regime has increased the frequency and size of high-severity fires that combust deep organic layers, exposing mineral soil and favoring the invasion of hardwoods. Within the BNZ LTER Regional Site Network, many sites that were dominated by black spruce prior to burning in 2004 have now converted to dense birch stands with very different vegetation and ecosystem characteristics (BD1 site). Roger Ruess