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| Untangling the mechanisms of cryptic species coexistence in a nematode community through individual-based modelling Daly, A.J.; De Meester, N.; Baetens, J.M.; Moens, T.; De Baets, B. (2021). Untangling the mechanisms of cryptic species coexistence in a nematode community through individual-based modelling. Oikos (Kbh.) 130(4): 587-600. https://hdl.handle.net/10.1111/oik.07989
In: Oikos (København). Munksgaard: Copenhagen. ISSN 0030-1299; e-ISSN 1600-0706, meer
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| Abstract |
The model incorporates individuals' reproduction, competition, dispersal and resource use. Data characterizing the cryptic species (growth rates, dispersal ability, competitive interactions and responses to changing environmental conditions) were obtained from laboratory experiments involving both mono- and multispecific nematode cultures, and are used to parameterize the model. Simulation studies are used to investigate which individual-level mechanisms of dispersal and interaction lead to the characteristic population-level patterns observed experimentally. Our results highlight the key role of intraspecific competition in mediating dispersal and therefore co-occurrence of the cryptic species. The differences in dispersal also influence the response of the cryptic species to competition, a combination of factors that provides an explanation for their co-occurrence. These results provide insights into how changes in individual-level processes can be amplified to affect population-level co-occurrence. |
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