What are the two life history patterns?

What are the two life history patterns?

Long life patterns: (1) Common among organisms that live in stable environments. (2) These organisms typically reproduce and mature slowly, and are long lives. (3) They are large species environments.

What are examples of life history traits?

Life history traits include growth rate; age and size at sexual maturity; the temporal pattern or schedule of reproduction; the number, size, and sex ratio of offspring; the distribution of intrinsic or extrinsic mortality rates (e.g., patterns of senescence); and patterns of dormancy and dispersal.

How many types of life history are there?

Strategies. Combinations of these life history traits and life events create the life history strategies. As an example, Winemiller and Rose, as cited by Lartillot & Delsuc, propose three types of life history strategies in the fish they study: opportunistic, periodic, and equilibrium.

What is the key ideas of life history strategies?

Life-history strategies are based on the characteristics of organisms that affect their fitness. Two environmental factors important in determining the life-history strategy of organisms, including sea urchins, are stress, conditions that reduce production and disturbance, partial or total destruction of biomass.

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 is rapid life history pattern?

Rapid life-history organisms have a small body size, mature rapidly, reproduce early, and have a short life span, and a short gestation period.

What are the two types of life history strategies?

Single vs. multiple reproductive events

• Those that can reproduce only once (semelparity)
• Those that can reproduce multiple times over their lifetime (iteroparity)

What is life history method?

The life-history method of qualitative research is an alternative to empirical methods for identifying and documenting health patterns of individuals and groups. It allows the nurse researcher to explore a person’s microhistorical (individual) experiences within a macrohistorical (history of the time) framework.

What are the main principles of life history theory?

Life history theory explains the general features of life cycle, i.e., how fast the organism grows, at what age it matures, how long it lives, and how often it reproduces. The theory is central to evolutionary ecology, as it directly deals with natural selection, fitness, adaptation, and constraint.

What is a 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 are life history trade-offs?

A trade-off exists when an increase in one life history trait (improving fitness) is coupled to a decrease in another life history trait (reducing fitness), so that the fitness benefit through increasing trait 1 is balanced against a fitness cost through decreasing trait 2 (Figure 2A).

What is historical life?

1a : a history of the changes through which an organism passes in its development from the primary stage to its natural death. b : one series of the changes in a life history. 2 : the history of an individual’s development in his or her social environment.

What are the 3 basic forms of life history method?

Making another set of distinctions, Allport (1942) suggested three main forms of life history writing: the comprehensive, the topical, and the edited.

What are two types of life history strategies?

What is life history called?

Medical Definition of life history 1a : a history of the changes through which an organism passes in its development from the primary stage to its natural death. b : one series of the changes in a life history.

What is the process of life history method?

What is life history?

Life history refers to the pattern of survival and reproduction events during the life of an organism. Life history traits include maximum body size, longevity, age at maturity, and fecundity.