Podcast
Questions and Answers
What is the basis for kin selection models?
What is the basis for kin selection models?
- The concept of kin selection and altruism (correct)
- The concept of resource-accumulation
- The concept of trade-based reciprocal altruism
- The concept of altruism
What do reciprocal models generate?
What do reciprocal models generate?
- Expectations of when and how a recipient of food from a donor will not share food in a future interaction with that donor
- Expectations of when and how a recipient of food from a donor will share food in a future interaction with that donor (correct)
- Expectations of when and how a donor will not share food in a future interaction with a recipient
- Expectations of when and how a donor will share food in a future interaction with a recipient
What do tolerated theft models seek to explain?
What do tolerated theft models seek to explain?
- Why in some hunter-gatherer societies, scrounging behavior is not tolerated by other members of a group
- Why in some hunter-gatherer societies, scrounging behavior is tolerated by other members of a group (correct)
- Why in some agricultural societies, scrounging behavior is tolerated by other members of a group
- Why in some agricultural societies, scrounging behavior is not tolerated by other members of a group
What do costly signaling models explain?
What do costly signaling models explain?
What do group cooperation models suggest?
What do group cooperation models suggest?
What is food-sharing?
What is food-sharing?
What is a benefit of sharing, according to the text?
What is a benefit of sharing, according to the text?
Which animals exhibit reciprocal sharing behaviors?
Which animals exhibit reciprocal sharing behaviors?
What has food-sharing been theorized as in early human evolution?
What has food-sharing been theorized as in early human evolution?
Flashcards
Kin Selection
Kin Selection
The theory that explains how altruism towards relatives can evolve, based on the idea that individuals share genes with their relatives.
Reciprocal Models
Reciprocal Models
Models predicting when individuals are likely to share food based on past interactions and expectations of future reciprocity.
Tolerated Theft Models
Tolerated Theft Models
Models that explore why some societies tolerate individuals foraging for food that others have already acquired, even if it appears like theft.
Costly Signaling Models
Costly Signaling Models
Signup and view all the flashcards
Group Cooperation Models
Group Cooperation Models
Signup and view all the flashcards
Food-Sharing
Food-Sharing
Signup and view all the flashcards
Reducing risk
Reducing risk
Signup and view all the flashcards
Reciprocal Sharing in Primates
Reciprocal Sharing in Primates
Signup and view all the flashcards
Food-Sharing in Early Human Evolution
Food-Sharing in Early Human Evolution
Signup and view all the flashcards
Study Notes
Evolutionary biologists have developed various theoretical models to explain the evolution of food-sharing behavior among humans and other animals.
Kin selection models are based on the concept of kin selection and altruism, which assumes that greater resource-accumulation increases reproductive fitness.
Reciprocal models expand on kin-selection models and generate expectations of when and how a recipient of food from a donor will share food in a future interaction with that donor.
Tolerated theft models seek to explain why in some hunter-gatherer societies, scrounging behavior is tolerated by other members of a group.
Costly signaling models explain why certain individuals tend to target difficult-to-acquire foods that sometimes produce less optimal yields.
Group cooperation models suggest that groups often target foods that pose some level of difficulty in their acquisition.
Food-sharing is a form of trade-based reciprocal altruism where privately owned food is used to reward labor.
Sharing seems to be better at reducing risk than changing the diet breadth.
Chimpanzees and other nonhuman primates exhibit reciprocal sharing behaviors.
Food-sharing has been theorized as an important development in early human evolution.
Natural selection will also favor the development of ways of determining kin from non-kin and close kin from distant kin.
Greater imbalances in the quantities shared between close kin are expected than those shared with non-kin or distantly related individuals.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of the evolution of food-sharing behavior in humans and animals with this informative quiz! From kin selection models to costly signaling models, this quiz covers the theoretical models that evolutionary biologists have developed to explain food-sharing behavior. Learn about the benefits of food-sharing, its role in early human evolution, and the different types of food-sharing observed in nonhuman primates. Whether you're a biology student or just curious about animal behavior, this quiz is sure to challenge and inform.
