In natural ecosystems, species often compete with multiple species to survive and acquire resources. These species can be characterized by their different growth profile and life history strategies, namely r and K selected species (Williams, 2013). In this paper, we examine the role of different life-history strategies on the stability of the competitive community along with network complexity. We obtain that the r-selected species enhance community stability and resilience; on the other hand, K-selected species show the opposite trend. Network connectance shows a consistent trend of increasing stability; on the other side, the number of species shows a context-dependent effect on stability. Stability decreases with species number when the proportion of r-selected species is low or moderate and shows precisely the opposite trend when the ratio of r-selected species is high. We also show that our result is robust irrespective of network structure.
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