Roundup: Mountain Glaciers, Biodiversity Threats, and Organic Carbon Fluxes

Mountain Glacier History in Greenland

From Quaternary Science Reviews: “Mountain glaciers and ice caps (GIC) independent of the Greenland Ice Sheet respond rapidly to climate variations and records of their past extent provide information on the natural envelope of climate variability.”

Read more about Sukkertoppen Iskappe, Greenland, here.

Sukkertoppen Iskappe, Greenland (Source: Long B. Nguyen/Flickr).


Declining Glacier Cover Threatens Diatoms

From Global Change Biology: “Most recent research has demonstrated the severe vulnerability of river invertebrates to glacier retreat but effects upon other aquatic groups remain poorly quantified. Using new data sets from the European Alps, we show significant responses to declining glacier cover for diatoms, which play a critical functional role as freshwater primary producers.”

Read more about effects of glacial retreat on diatoms here.

Diatomee / Diatom (fossil) – Thalassiosira sp. – 400x
(Source: Picturepest/Flickr).


Organic Carbon Fluxes at the Surface of Foxfonna Glacier

From Earth Surface Processes and Landforms: “Arctic glaciers are rapidly responding to global warming by releasing organic carbon (OC) to downstream ecosystems. The glacier surface is arguably the most biologically active and biodiverse glacial habitat and therefore the site of important OC transformation and storage.”

Read more about Foxfonna Glacier here.

Foxfonna Glacier, Svalbard (Source: James Douglas/Flickr).