Size but not relatedness drives the spatial distribution of males within an urban population ofAnolis carolinensislizards
| Autor: | Simon P. Lailvaux, Nicola M. Anthony, William David Weber |
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| Rok vydání: | 2021 |
| Předmět: |
relatedness
0106 biological sciences Species complex Anolis carolinensis Home range Population Territoriality Spatial distribution 010603 evolutionary biology 01 natural sciences Anolis 03 medical and health sciences territoriality lcsh:QH540-549.5 education Ecology Evolution Behavior and Systematics Original Research 030304 developmental biology Nature and Landscape Conservation 0303 health sciences education.field_of_study spatial distribution Ecology biology pedigree Mating system biology.organism_classification Evolutionary biology Biological dispersal lcsh:Ecology |
| Zdroj: | Ecology and Evolution, Vol 11, Iss 6, Pp 2886-2898 (2021) Ecology and Evolution |
| ISSN: | 2045-7758 |
| Popis: | The way that individuals are spatially organized in their environment is a fundamental population characteristic affecting social structure, mating system, and reproductive ecology. However, for many small or cryptic species, the factors driving the spatial distribution of individuals within a population are poorly understood and difficult to quantify. We combined microsatellite data, remote sensing, and mark–recapture techniques to test the relative importance of body size and relatedness in determining the spatial distribution of male Anolis carolinensis individuals within a focal population over a five‐year period. We found that males maintain smaller home ranges than females. We found no relationship between male body size and home range size, nor any substantial impact of relatedness on the geographic proximity. Instead, the main driver of male spatial distribution in this population was differences in body size. We also found no evidence for offspring inheritance of their parent's territories. Males were never sampled within their father's territory providing strong support for male‐biased dispersal. This study introduces a novel approach by combining standard mark release capture data with measures of pairwise relatedness, body size, and GPS locations to better understand the factors that drive the spatial distribution of individuals within a population. We have examined an isolated population of Anolis carolinensis over a five‐year period in order to answer the question of how individuals in that population positioned themselves from one another. Using combined methodology, our study shows that females A. carolinensis hold larger home ranges than males and that a male intrasexual size dimorphism may be the primary driver of how males position themselves. |
| Databáze: | OpenAIRE |
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