FACTORS IN CHOOSING A MATE

Mate Choice

- important cause of sexual selection = process through which males and females attempt to maximize their chances of reproductive success

- causes variations in individual fitness, speciation, and evolution of extreme traits

Mate Preference and Choosiness

2 Components of Mate Choices

Mate Preference

- ranking of prospective mates = collect as much information as possible on the identity and quality of available mate candidates

Choosiness

- effort invested in mate assessment = direct and indirect benefits, such as parental care, gene quality for the offspring, or access to a high-quality territory

• pass favorable genes

• build a stable, supportive partnerships conducive to survival and reproduction

How do humans choose a mate?

1. Assortative Mating

2. Non-assortative Mating

Types of Non-Random Mating

non-random process

= choose mates based on specific traits, behaviors, or preferences

Assortative Mating

• occurs when individuals with similar traits mate more frequently

• increases the frequency of certain traits

• it can lead to homogenous populations

Disassortative Mating

• individuals prefer mates with different traits

• increases genetic diversity

• avoid inbreeding

Men

drawn to signs of fertility and youth, such as physical attractiveness and reproductive potential = continuation of their genes into future generations

Women

prioritize resources, status, and stability in a mate, as these traits provide greater security and support for raising offspring → connected to parental investment theory = parent (usually the mother) who invests more in offspring will be more selective when choosing a mate

1. Initial Attraction

2. Assessment

3. Courtship

4. Commitment

5. Maintenance

STAGES OF CHOOSING A MATE:

Initial Attraction

sparked by physical appearance, shared interests, or social cues

Assessment

evaluate potential mates based on values, compatibility, and long-term potential

Courtship

engaging in activities designed to deepen the connection and assess compatibility

Commitment

making a conscious decision to enter into a long-term relationship

Maintenance

nurturing the relationship and adapting to changing circumstances