Related Experiment Video
Updated: Jul 9, 2025
09:03
Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments
Published on: May 21, 2019
9.6K
Conspicuous stripes on prey capture attention and reduce attacks by foraging jumping spiders
Lauren Gawel1, Erin C Powell1,2, Michelle Brock1
1Entomology and Nematology Department, University of Florida, 1881 Natural Area Drive, Gainesville, FL 32611, USA.
Royal Society Open Science
|November 29, 2023
Summary
Predatory jumping spiders paid more attention to striped prey, but attacked them less, suggesting stripes signal danger. This indicates innate aversion to warning patterns in predators, aiding prey survival.
Area of Science:
- Behavioral Ecology
- Evolutionary Biology
- Predator-Prey Dynamics
Background:
- Aposematism, the warning signal of dangerous prey, often uses high-contrast patterns like stripes.
- Understanding predator decision-making is crucial to deciphering the efficacy of aposematic defenses.
Purpose of the Study:
- To investigate how visual predators (jumping spiders) respond to aposematic patterns.
- To determine if striped patterns elicit attention and/or aversion in jumping spiders.
Main Methods:
- Choice tests were conducted using two species of jumping spiders, *Phidippus regius* and *Habronattus trimaculatus*.
- Live termites were presented with manipulated dorsal patterns: solid white, solid black, or striped.
- Predator attention and attack rates were recorded and analyzed.
Main Results:
- *Phidippus regius* spiders showed increased attention to black and striped termites.
- Despite higher attention, striped termites were attacked less frequently than solid white or black ones.
- Qualitative trends in *Habronattus trimaculatus* suggested similar pattern aversion, though not statistically significant.
Conclusions:
- Background contrast attracts predator attention, while internal striped patterns may signal danger, reducing attacks.
- Evidence suggests an innate component to stripe aversion in jumping spiders.
- Jumping spiders serve as a valuable model for studying the evolution and function of aposematism.
Related Concept Videos
02:39Predator-Prey Interactions
16.3K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.3K
01:06Fixed Action Patterns
16.0K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
16.0K
00:48Optimal Foraging
12.1K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
12.1K
01:21Frequency-dependent Selection
22.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.0K
01:20Mate Choice
8.0K
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
8.0K
02:07Conservation of Declining Populations
9.6K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.6K