USGS Aquatic Entomologist Joe Giersch stands at the outlet of Grinnell Glacier in Glacier National park, the main locality the western glacier stonefly (Zapada glacier).
Joe Giersch (Former Employee)
Science and Products
Climate change links fate of glaciers and rare alpine stream invertebrates in Glacier National Park
The extensive loss of glaciers in Glacier National Park (GNP) is iconic of the global impacts of climate warming in mountain ecosystems. However, little is known about how climate change may threaten alpine stream species, especially invertebrates, persisting below disappearing snow and ice masses in GNP. Two alpine stream invertebrates – the meltwater stonefly and the glacier stonefly – are...
Integrated bioassessment of imperiled alpine aquatic ecosystems using NPS vital signs and USGS research data: Implications for conservation under a warming climate
Climate warming in the mid- to high-latitudes and high-elevation mountainous regions is occurring more rapidly than anywhere else on Earth, causing extensive loss of glaciers and snowpack. The loss of glaciers in Glacier National Park (GNP) is iconic of the combined impacts of global warming and reduced snowpack−all remaining 25 glaciers are predicted to disappear by 2030. These changes will...
At the Glacier's Mouth
USGS Aquatic Entomologist Joe Giersch stands at the outlet of Grinnell Glacier in Glacier National park, the main locality the western glacier stonefly (Zapada glacier).
High Alpine Retreat
A spring fed stream in the Two-Medicine drainage of Glacier National Park is one of 2 new locations for the western glacier stonefly (Zapada glacier).
A spring fed stream in the Two-Medicine drainage of Glacier National Park is one of 2 new locations for the western glacier stonefly (Zapada glacier).
Western Glacier Stonefly
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
Western Glacier Stonefly
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The Meltwater Stonefly
A Meltwater stonefly rests on a rock in Reynolds Creek spring on Logan Pass in Glacier National Park.
A Meltwater stonefly rests on a rock in Reynolds Creek spring on Logan Pass in Glacier National Park.
Science and Products
Climate change links fate of glaciers and rare alpine stream invertebrates in Glacier National Park
The extensive loss of glaciers in Glacier National Park (GNP) is iconic of the global impacts of climate warming in mountain ecosystems. However, little is known about how climate change may threaten alpine stream species, especially invertebrates, persisting below disappearing snow and ice masses in GNP. Two alpine stream invertebrates – the meltwater stonefly and the glacier stonefly – are...
Integrated bioassessment of imperiled alpine aquatic ecosystems using NPS vital signs and USGS research data: Implications for conservation under a warming climate
Climate warming in the mid- to high-latitudes and high-elevation mountainous regions is occurring more rapidly than anywhere else on Earth, causing extensive loss of glaciers and snowpack. The loss of glaciers in Glacier National Park (GNP) is iconic of the combined impacts of global warming and reduced snowpack−all remaining 25 glaciers are predicted to disappear by 2030. These changes will...
At the Glacier's Mouth
USGS Aquatic Entomologist Joe Giersch stands at the outlet of Grinnell Glacier in Glacier National park, the main locality the western glacier stonefly (Zapada glacier).
USGS Aquatic Entomologist Joe Giersch stands at the outlet of Grinnell Glacier in Glacier National park, the main locality the western glacier stonefly (Zapada glacier).
High Alpine Retreat
A spring fed stream in the Two-Medicine drainage of Glacier National Park is one of 2 new locations for the western glacier stonefly (Zapada glacier).
A spring fed stream in the Two-Medicine drainage of Glacier National Park is one of 2 new locations for the western glacier stonefly (Zapada glacier).
Western Glacier Stonefly
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
Western Glacier Stonefly
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The rare western glacier stonefly (Zapada glacier) is native to Glacier National Park and is seeking habitat at higher elevations due to warming stream temperature and glacier loss due to climate warming.
The Meltwater Stonefly
A Meltwater stonefly rests on a rock in Reynolds Creek spring on Logan Pass in Glacier National Park.
A Meltwater stonefly rests on a rock in Reynolds Creek spring on Logan Pass in Glacier National Park.