Spider Webs Behavior, Function, and Evolution.

Spider Webs Behavior, Function, and Evolution.

Bibliographic Details
Main Author: Eberhard, William G.
Format: eBook
Language:English
Published: Chicago University of Chicago Press, 2020.
Subjects:
Spider webs.
Spiders > Behavior.
EBSCO eBooks
Online Access:https://www.lib.tsu.ru/mminfo/2023/EBSCO/2657487.pdf
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Table of Contents:
  • Intro
  • Contents
  • Chapter 1. Introduction
  • 1.1 Introduction
  • 1.2 A foreign world: life tied to silk lines
  • 1.3 A brief history of spider web studies
  • 1.4 Emphasis on behavior
  • 1.5 The scope of this book and tactics in presentation
  • 1.6 Evolutionary history and phylogeny
  • 1.7 Terminology and other procedural matters
  • 1.8 Acknowledgments
  • Chapter 2. The "hardware" of web-building spiders: morphology, silk, and behavior
  • 2.1. Introduction
  • 2.2 Silk glands and silk
  • 2.2.1 Origins
  • 2.2.2 Mechanical properties and how they are determined
  • 2.2.3 Major ampullate glands
  • 2.2.4 Minor ampullate glands
  • 2.2.5 Aciniform glands
  • 2.2.6 Flagelliform glands
  • 2.2.7 Pseudoflagelliform glands
  • 2.2.8 Sticky silk
  • 2.2.8.1 Cribellum glands
  • 2.2.8.2 Aggregate glands
  • 2.2.8.3 Venom glands that produce contractile sticky "webs" in Scytodidae
  • 2.2.8.4 Ampullate glands in Loxosceles
  • 2.2.9 Piriform glands
  • 2.2.9.1 Spinneret morphology
  • 2.2.9.2 Morphology of attachment discs
  • 2.2.9.3 Different attachment disc morphologies result from spinneret behavior and morphology
  • 2.2.9.4 The "piriform queen"-Cyrtophora citricola
  • 2.2.10 Epiandrous glands
  • 2.2.11 Other products associated with silk
  • 2.2.12 Control of rates of silk secretion in glands
  • 2.2.13 Forming bridge lines
  • 2.3 Spinnerets as high-precision instruments
  • 2.3.1 Ancestral morphology and behavior
  • 2.3.2 Strategic placements of spigots on the spinnerets of araneomorphs
  • 2.3.2.1 General considerations
  • 2.3.2.2 Special cases involving web designs
  • 2.3.2.3 Additional complications
  • 2.3.3 Phylogenetic inertia?
  • 2.3.4 Behavior of the spinnerets
  • 2.3.5 How are lines terminated?
  • 2.4 Leg morphology and behavior: grasping lines precisely and securely
  • 2.4.1 Grasping lines in a web
  • tarsal morphology and leg movements
  • 2.4.2 Complementary searching and grasping behavior
  • 2.4.2.1 The blind man's cane and the art of following
  • 2.4.2.2 Asymmetric searching movements that match asymmetric tarsal morphology
  • 2.4.2.3 An additional detail: rotating legs to grasp lines
  • 2.4.3 Grasping a line prior to attaching the dragline
  • 2.5 Cutting lines and recycling silk
  • 2.5.1 Cutting lines
  • 2.5.2 Recycling silk
  • 2.6 How spiders avoid adhering to their own webs: a mystery partly solved
  • 2.7 Central nervous system basis for web construction
  • 2.8 Summary
  • Chapter 3. Functions of orb web designs
  • 3.1 Introduction
  • 3.2 Correcting common misconceptions about orb webs
  • 3.2.1 Orbs are neither sieves nor sound detectors
  • 3.2.2 Orb webs are not the pinacle of web evolution
  • 3.2.3 Orbs have never been demonstrated to be "optimum" structures
  • 3.2.4 The trajectories, diameters, and velocities of prey are diverse and poorly known
  • 3.2.5 Most differences in orb designs are probably not specializations for particular prey
  • 3.2.5.1 Long lists of prey captured argue against strong specialization
  • 3.2.5.2 Strong habitat effects

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