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It is a theory of biological evolution that seeks to explain aspects of organisms' anatomy and behavior by reference to the way that their life histories—including their reproductive development and behaviors, post-reproductive behaviors, and life span (length of time alive)—have been shaped by natural selection.
- 6.1 What are life history traits? - Biology LibreTexts
A species' life history is the pattern of life cycle...
- 9.2: Life Histories and Natural Selection - Biology LibreTexts
Life history theory draws on an evolutionary foundation, and...
- 6.1 What are life history traits? - Biology LibreTexts
30 Σεπ 2013 · The life history of an organism is its pattern of survival and reproduction, along with the traits that directly affect survival and the timing or amount of reproduction. Rates of survival and reproduction can be estimated across age classes, or across different stages in organisms with complex life cycles.
An organism’s life history can be represented by its survival, growth, and reproduction through time. However, a life history is actually a composite of many individual traits (such as initial size) and is influenced by multiple life-history tradeoffs (such as between offspring size and number).
A species' life history is the pattern of life cycle processes, including growth, development, reproduction, and death. Life history traits, therefore, are traits that relate to the timing and occurrence of each of these stages.
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.
10 Οκτ 2022 · Life history theory draws on an evolutionary foundation, and studies the effects of natural selection on organisms, both throughout their lifetime and across generations.
15 Σεπ 2021 · Life histories are solutions that selection has produced to solve the problem of how to persist in a given environment. These solutions differ tremendously within and among species.
