Elevational gradient phenotypic survey of Thlaspi arvense (Brassicaceae)

Knowledge graph centered on Elevational gradient phenotypic survey of Thlaspi arvense (Brassicaceae) with 73 nodes and 142 connections. Top connected: Rocky Mountain Biological Laboratory, Gothic, Scarlet Gilia, Slender-tube Skyrocket, Crested Butte.

Method synopsis

Weekly monitoring of plant phenology, morphological traits, and density across an elevational gradient to assess phenotypic plasticity in response to environmental conditions. Uses standardized phenological staging and morphometric measurements.

Synthesized from method descriptions across 9 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 — Resource availability alters fitness trade-offs: implications for evolution in stressful environments (2020), American Journal of Botany. The protocol was originally introduced by The effects of hemiparasitism by <i> Castilleja</i> spp on community structure in alpine ecosystems (2011). Implementations in other papers (listed below) may differ.

1. Seed collection from natural populations
   Seeds collected from natural populations spanning a broad elevational gradient from 2499-3530 m a.s.l. around the Rocky Mountain Biological Laboratory in Gothic, Colorado, United States. One family per source population was collected to capture genetic variation in resource acquisition and allocation strategies.
   Quantities: 35 families collected, one family per source population across 800+ meter elevation gradientDuration: Single collection periodConditions: Natural field conditions at various elevations in Rocky Mountains
   Equipment: seed collection containers

Typical Equipment

• GeoXT GPS device
• 1m² quadrat frames
• measuring tools for diameter and height

Output Measurements

• phenological stage
• plant density
• rosette diameter
• stem height
• branch counts
• fruit number

Papers Using This Protocol (9)

Species Studied With This Protocol

Places Where Used