由于种内互助作用的存在及食植者采食速率、食植者密度等因子的影响，牧草植物种群存在多个稳定平衡点。
There are multiplicity of stable states in herbage populations owing to the influences of intraspecific mutualism, feeding rate and density of herbivores.
根据其他化石证据显示，绮纹阔头蜥必须在恐龙、翼龙、巨大而状似鳄鱼的植龙，以及早期哺乳类等掠食者的夹缝间求生存。
Other fossils show that it lived alongside predators like dinosaurs, pterosaurs, massive crocodile-like reptiles called phytosaurs, and early mammals.
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