Macquarie University
Browse
01whole.pdf (20.03 MB)

Effect of Miniaturisation on Jump Kinematics and Take-off Strategies in Jumping Spiders

Download (20.03 MB)
thesis
posted on 2024-02-05, 03:12 authored by Pranav Milind Joshi
Size affects the design of morphological and physiological characteristics along with the information processing capacity of animals. A reduction in size or miniaturisation is a biological phenomenon where animals within a single lineage have evolved extremely small body size where tissues and organs reach limits imposed by the physical world. Jumps, a common mode of locomotion in animals can be used as a benchmark information processing task. Jumping spiders of the family Salticidae frequently jump to avoid predators, capture prey and for locomotion. They also exhibit dramatic variation in body size both between and within species. Here, we investigated the effects of miniaturisation on the jumping kinematics and energetics in Australian spiders. We filmed the take-off locomotory jumps of 8 species of spiders that exhibited more than 50-fold differences in body mass. We carried out a frame-by-frame analyses and quantified their jump kinematics and energetics. While heavier spiders had higher take-off acceleration, we found ‘species’ explained most of the variation in acceleration. Variation in the energetics and jumping forces was best explained by body mass. We discuss here the variation in morphologies between species and how this affects jump take-off strategies in spiders in the context of miniaturisation.

History

Table of Contents

Chapter 1. Introduction to Jumping in Arthropods -- Chapter 2. Effect of Miniaturisation on Jump Kinematics and Take-off Strategies in Jumping Spiders

Notes

Additional Supervisor 3: Dinesh Rao

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

Master of Research

Department, Centre or School

School of Natural Sciences

Year of Award

2023

Principal Supervisor

Ajay Narendra

Additional Supervisor 1

Fleur Ponton

Additional Supervisor 2

Luis Robledo-Ospina

Rights

Copyright: The Author Copyright disclaimer: https://www.mq.edu.au/copyright-disclaimer

Language

English

Extent

43 pages

Former Identifiers

AMIS ID: 298855

Usage metrics

    Macquarie University Theses

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC