I think the highlighted sentence implies "all the members of the community (including Homo sapiens and all the other creatures) and the whole community that they constitute together, must be respected equally". What is your impression?
Context:
the land ethic changes the role of Homo sapiens from conqueror of the land-community to plain member and citizen of it. It implies respect for his fellow members, and also respect for the community as such (https://books.google.com/books?id=R___rHZceUsC&pg=PA83&lpg=PA83&dq=%22It+implies+respect+for+his+fellow+members%22&source=bl&ots=GSzKg0eihG&sig=vYq5TSr74HyNXlQ7Gz-cHFmmr54&hl=en&sa=X&ved=0ahUKEwjtoaK6zKfYAhWNh7QKHVi9C-kQ6AEILDAB#v=onepage&q=%22It%20implies%20respect%20for%20his%20fellow%20members%22&f=false).
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