Interactions with Succinea sp. B may be having a significant impact on Novisuccinea chittenangoensis, as both species may be competing for food, breeding or wintering habitat. Hubricht (1985) reported that Succinea putris (Succinea sp. B of Hoagland and Davis) is a "very common species within its range. I found no other Succineidae with it. It appears to crowd out all other species." It does not appear that the other sympatric snail species (e.g., Oxyloma spp.) occurring at the Falls are having a significant impact on Novisuccinea chittenangoensis, as they are thought to be native species. There are no reports of disease or parasites threatening Novisuccinea chittenangoensis.
