Rose gardens are a good habitat for insects. Aphids are tiny insects that eat roses and produce a sticky substance called honeydew. Honeydew is a favorite food of ants, so ants often live with aphids. The ants protect the aphids against predators such as ladybugs. Another way that ants help aphids is by removing dead aphids. This way, an aphid that died from a fungus infection will not infect the rest of the aphids. Is this a population, community or a ecosystem