Remote sensing snowmelt and habitat mapping (Sciuridae)

Knowledge graph centered on Remote sensing snowmelt and habitat mapping (Sciuridae) with 67 nodes and 172 connections. Top connected: Rocky Mountain Biological Laboratory, Gothic, Marmota, Yellow-bellied Marmot, Crested Butte.

Method synopsis

Use of remote sensing data to determine snowmelt timing and map marmot colony boundaries. Combines satellite imagery analysis with ground-truthed colony locations to quantify seasonal and habitat variables.

Synthesized from method descriptions across 3 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Is early life adversity associated with adult stress in a wild rodent? (2025), Ecology and Evolution. Implementations in other papers (listed below) may differ.

1. Quantify growing season start using NDVI
   Hand-drawn polygons of colony areas were used to obtain colony-specific measures for each year from 2002 to 2020 using NDVI satellite imagery data from the USGS eMODIS database to detect timing and duration of green-up.
   Quantities: Colony-specific measures for each year 2002-2020Duration: Annual measurements across study periodConditions: Satellite imagery analysis
   Equipment: USGS eMODIS database, NDVI satellite imagery

Typical Equipment

• RMBL Spatial Data Platform
• remote sensing imagery

Output Measurements

• snowmelt date
• colony boundaries
• growing season start

Papers Using This Protocol (3)

Species Studied With This Protocol

Places Where Used