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The Dimensions and Units of the Population Interaction Coefficients
- Source :
- Frontiers in Ecology and Evolution, Frontiers in Ecology and Evolution, Frontiers Media S.A, 2021, 9, ⟨10.3389/fevo.2021.775754⟩, Frontiers in Ecology and Evolution, 2021, 9, ⟨10.3389/fevo.2021.775754⟩, Frontiers in Ecology and Evolution, Vol 9 (2021)
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- International audience; We discuss the interpretation and dimensions of the population dynamic parameters that are commonly used to quantify the strength of intraspecific and interspecific interactions. The concept of "interaction strength" is not unequivocal. Its theoretical formalization relies on the generalized Lotka-Volterra model. However, four different ways of parameterizing the model have been proposed in the literature, leading to four different definitions of the term "interaction strength." In particular, the dimensions of these four definitions are not identical, some of these incorporating explicitly the dimension used to measure the population size. Using an individual-based simulation model as an illustration, we show that, in the latter case, the interaction strength depends implicitly on the habitat size. As a consequence, it is of crucial importance to quantify the population as a density rather than an absolute population abundance. We insist that the dimension of the interaction strength coefficient should not be overlooked and any quantitative estimation must be given with explicit units.
- Subjects :
- 0106 biological sciences
Evolution
Population
Interaction strength
[SDV.BID]Life Sciences [q-bio]/Biodiversity
010603 evolutionary biology
01 natural sciences
Measure (mathematics)
generalized Lotka–Volterra model
Intraspecific competition
Interpretation (model theory)
QH359-425
population dynamics
Quantitative Biology::Populations and Evolution
Statistical physics
Dimension (data warehouse)
education
QH540-549.5
Ecology, Evolution, Behavior and Systematics
Mathematics
logistic model
education.field_of_study
species interactions
Ecology
Population size
interaction strength
Term (time)
010601 ecology
Subjects
Details
- Language :
- English
- ISSN :
- 2296701X
- Database :
- OpenAIRE
- Journal :
- Frontiers in Ecology and Evolution, Frontiers in Ecology and Evolution, Frontiers Media S.A, 2021, 9, ⟨10.3389/fevo.2021.775754⟩, Frontiers in Ecology and Evolution, 2021, 9, ⟨10.3389/fevo.2021.775754⟩, Frontiers in Ecology and Evolution, Vol 9 (2021)
- Accession number :
- edsair.doi.dedup.....e5e37752c6a11d5243ffc1ade38a942d