Related Experiment Video
Updated: May 14, 2026
06:24
Individual Culturing of Tigriopus Copepods and Quantitative Analysis of Their Mate-guarding Behavior
Published on: September 26, 2018
Functions, diversity, and evolution of traumatic mating.
Rolanda Lange1, Klaus Reinhardt, Nico K Michiels
1Animal Evolutionary Ecology Group, Faculty of Sciences, University of Tuebingen, Auf der Morgenstelle 28, D-72076, Tuebingen, Germany. rolanda.lange@uni-tuebingen.de
Biological Reviews of the Cambridge Philosophical Society
|January 26, 2013
Summary
Traumatic mating, involving partner wounding during copulation, is widespread across taxa and evolves through various pathways. This reproductive strategy offers advantages like paternity assurance and fertilization efficiency.
Area of Science:
- Evolutionary Biology
- Reproductive Biology
- Zoology
Background:
- Copulation can involve partner wounding, termed traumatic mating, previously considered exceptional.
- The prevalence, functions, and evolutionary pathways of traumatic mating have not been comprehensively studied or categorized.
- A lack of systematic classification has hindered understanding of this mating strategy.
Purpose of the Study:
- To investigate the prevalence and diversity of traumatic mating across taxa.
- To categorize and elucidate the functions and evolutionary origins of traumatic mating.
- To quantitatively assess the evolutionary pressures and fitness implications of traumatic mating.
Main Methods:
- Comparative analysis of traumatic mating across diverse taxa.
- Review and synthesis of existing literature on traumatic mating functions and evolution.
- Quantitative corroboration of hypotheses regarding the evolution of traumatic mating in hermaphroditic versus gonochoric taxa.
Main Results:
- Traumatic mating is a widespread and diverse phenomenon, evolving through multiple pathways.
- Identified functions include anchorage, stimulation of reproductive investment, paternity advantage, and enhanced fertilization efficiency.
- Parallel evolution of specialized traumatic intromittent organs observed in distantly related taxa.
- Traumatic mating evolved more frequently in hermaphroditic than gonochoric taxa.
Conclusions:
- Traumatic mating is a significant reproductive strategy with diverse evolutionary origins and functions.
- Natural and sexual selection likely drive the parallel evolution of traumatic mating adaptations.
- Further research is needed on target sites, secretions, and comprehensive fitness impacts for both sexes.
Related Concept Videos
01:20Mate Choice
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.
01:06Natural Selection and Mating Preferences
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing, inherently...
Females, due to their biological roles in conception, pregnancy, and nursing, inherently...
01:23Criticisms of the Evolutionary Perspective
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
Evolutionary psychology provides one explanation for these findings, suggesting...
01:20Evolutionary Psychology
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
02:12Relationship Formation
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
01:24Evolution of New Traits in Microbes
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...