Related Experiment Video
Updated: Jun 17, 2025
07:15
Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice
Published on: March 15, 2024
1.4K
Sex-specific social aging in wild African lions
Lauren F Rudd1, Craig Packer2, Dora Biro3
1Department of Biology, University of Oxford, Oxford OX1 3SZ, UK.
Current Biology : CB
|August 7, 2024
Summary
Social aging in African lions (Panthera leo) differs significantly between sexes. Female longevity depends on network connectivity, while male survival is linked to the number of associates.
Area of Science:
- Animal behavior
- Ecology
- Social network analysis
Background:
- Social behavior changes with age, impacting longevity, but knowledge is limited, especially in carnivores.
- African lions (Panthera leo) offer a unique model due to their egalitarian social structure and known reproductive senescence.
Purpose of the Study:
- To investigate social aging patterns and their effects on longevity in a wild African lion population.
- To determine how social dynamics and network structures change with age in male and female lions.
Main Methods:
- Spatial-social network analyses were applied to 30 years of data from the Serengeti lion population.
- Examined changes in group size, associate numbers (degree), intra-sex connectivity (strength), and bond strength (mean strength) with age for both sexes.
Main Results:
- Group size increased with age in both sexes. Male associate numbers peaked in mid-life and then declined.
- Aging females showed decreased intra-sex connectivity but increased strength with males in mid-life.
- Male social strength within groups dipped in mid-life, while inter-sex strength peaked.
Conclusions:
- Sex significantly modulates social aging patterns and longevity in African lions.
- Female longevity is linked to overall network connectivity, whereas male survival depends on the number of associates.
- Social aging effects in wild carnivores can diverge significantly between sexes.
Related Concept Videos
02:04Conservation of Small Populations
13.1K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.1K
02:12Relationship Formation
40.0K
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,...
40.0K
01:23Criticisms of the Evolutionary Perspective
92
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...
92
01:06Natural Selection and Mating Preferences
100
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,...
Females, due to their biological roles in conception, pregnancy, and nursing,...
100