An evaluation of seed number as a measure of fitness: a review and experimental study

It appears your Web browser is not configured to display PDF files. Download adobe Acrobat or click here to download the PDF file.

Click here to download the PDF file.

Creator: 

Wen, Lina

Date: 

2019

Abstract: 

Seed number is often used as a measure of fitness; however, situations exist where there is a discrepancy in the relationship between seed number and fitness In Chapter 1, I identify eight main scenarios in nature where fitness is not well represented by seed count, and review existing empirical research that have used seed count under these specific scenarios. Results suggest that the validity of seed number as a measure of fitness is largely under studied and should be supplemented with alternative metrics to appropriately quantify fitness. In Chapter 2, I use the monocarpic herbaceous plant Lobelia inflata to assess whether variable seasonal constraints can disrupt the relationship between seed count and fitness under controlled growth chamber conditions. Interestingly, the relative per-seed fitness is 0.774±0.034 under constrained season length conditions; higher total fitness is observed under a constrained season using simple seed count, but not after accounting for seedling viability.

Subject: 

Botany
Ecology

Language: 

English

Publisher: 

Carleton University

Thesis Degree Name: 

Master of Science: 
M.Sc.

Thesis Degree Level: 

Master's

Thesis Degree Discipline: 

Biology

Parent Collection: 

Theses and Dissertations

Items in CURVE are protected by copyright, with all rights reserved, unless otherwise indicated. They are made available with permission from the author(s).