What things do you humans do in the garden to alter the biotic elements of the ecosystem?

Humans alter the biotic elements of the garden ecosystem through practices such as planting a variety of flora, which can support diverse fauna and promote biodiversity. They may also introduce beneficial species, like pollinators and natural pest controllers, while removing invasive species that threaten native plants. Additionally, practices such as composting and using organic fertilizers enhance soil health and microbial activity, further impacting the ecosystem. Through these actions, humans can create balanced environments that support both plants and animals.