What are life history strategies?
A life history strategy is the “age- and stage-specific patterns” and timing of events that make up an organism’s life, such as birth, weaning, maturation, death, etc.
What are examples of life history traits?
Life history traits includes such factors as the number, size and sex ratio of offspring, the timing of reproduction, age and size at maturity and growth pattern, longevity, and so on. All of these are heritable to some degree and thus subject to natural selection.
What are life history variables?
The participants were also asked to provide information concerning the following seven (independent) life-history variables: sex, age, birth order, number of siblings, parental status, reproductive goal (the minimum and maximum number of biological offspring participants wanted to have), and subjective life expectancy.
Is clutch size a life history trait?
Variation in life history traits includes timing of reproduction, size and number of offspring, number of clutches, and individual growth rates.
What is fast life history strategy?
Life history theories predict that organisms adopt a faster life history strategy, i.e. a higher investment in current as opposed to future reproduction, in response to several environmental factors.
What is life history strategy psychology?
Life history theory posits that behavioral adaptation to various environmental (ecological and/or social) conditions encountered during childhood is regulated by a wide variety of different traits resulting in various behavioral strategies.
What is a life history pattern?
The life history of a species is the pattern of survival and reproduction events typical for a member of the species (essentially, its lifecycle). Life history patterns evolve by natural selection, and they represent an “optimization” of tradeoffs between growth, survival, and reproduction.
What is life history of a person?
countable noun. The life history of a person is all the things that happen to them during their life. Some people give you their life history without much prompting.
What is meant by life history?
Definition of life history 1 : a history of the changes through which an organism passes in its development from the primary stage to its natural death. 2 : the history of an individual or thing.
What are three variables that affect life history?
The schedules of growth, reproduction, and mortality together determine the life history of a species.
What is a slow life history strategy?
Conversely, a slower life history strategy generally develops in a resource abundant, predictable environment, associated with minimal risk to life. People with a slower life history strategy generally experience slower development with delayed maturation, and are more future orientated (Del Giudice et al., 2015).
What is a slow life strategy?
A slow Life History Strategy or “speed” (LHS), also known as a high-K strategy (Figueredo et al., 2005) prioritizes somatic effort (i.e. investment in future reproduction) over reproductive effort, parental effort over mating effort, and quality of offspring over quantity of offspring, whereas a fast LHS prioritizes …
What is life history history strategy in biology?
Life history strategy is correlated with many aspects of an organism’s reproductive strategy and life history, as well as with demographic variables such as generation time and life span, and population parameters such as population density and population dynamics .
What is the major tradeoff in life history strategies?
One major tradeoff in life history strategies is between number of offspring and a parent’s investment in the individual offspring.
What are the characteristics of life history?
For humans, life history involves a late start to reproduction, few offspring, and the ability to reproduce multiple times. We can define the life history of a species as its lifecycle, and in particular, the lifecycle features related to survival and reproduction.
Is there a continuum in life history strategies?
Among biological organisms, there is a continuum in life history strategies between what are referred to as r -selected species and k -selected species.