Boechera-Lythrum phenological evolution model (Brassicaceae)

Knowledge graph centered on Boechera-Lythrum phenological evolution model (Brassicaceae) with 32 nodes and 111 connections. Top connected: Rocky Mountain Biological Laboratory, Gothic, Marmota, Yellow-bellied Marmot, Beetles.

Method synopsis

A resource allocation model combining growth rate, flowering time, and optimal control theory to predict phenological shifts under climate change. The model incorporates species-specific climate thresholds, genetic constraints, and ecological factors to predict evolutionary responses.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Phenological shifts of native and invasive species under climate change: insights from the <i>Boechera Lythrum</i> model (2017), Philosophical Transactions of the Royal Society B: Biological Sciences. Implementations in other papers (listed below) may differ.

1. Define growing season parameters
   The growing season is defined as the period when air temperature and soil moisture are above minimum thresholds necessary for growth, differing for each species. For Boechera stricta: 8°C temperature and 10% volumetric water content thresholds. For Lythrum salicaria: 12°C temperature and 18% volumetric water content thresholds.
   Quantities: Temperature thresholds: B. stricta 8°C, L. salicaria 12°C; Moisture thresholds: B. stricta 10% VWC, L. salicaria 18% VWCDuration: Growing season length varies by climate scenario and altitudeConditions: Temperature and moisture modeled separately for each habitat using sine functions to account for seasonal fluctuations
   Equipment: Climate modeling functions
2. Model exponential vegetative growth
   Growth follows an exponential curve with base vegetative growth rate (r) from initial seed size until threshold size at reproduction. The time until reproductive maturity determines vegetative size, with size remaining constant after reproduction begins and seed production increasing following a saturation curve with upper limit θ.
   Quantities: Growth rate r varies by species, initial seed size V₀, threshold size at reproduction variesDuration: From germination until threshold reproductive size reachedConditions: Growth only occurs when temperature and moisture above species thresholds
   Equipment: Mathematical growth models

Typical Equipment

• Climate modeling functions
• Mathematical growth models
• Climate scenario models
• Herbivory impact models

Output Measurements

• predicted flowering time shifts
• reproductive fitness
• growing season timing
• Julian day of first flower

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used