The turfgrass ecosystem supports a diverse community of nonpest invertebrates that includes which of the following?

The turfgrass ecosystem supports a diverse community of nonpest invertebrates that includes which of the following?

• A. Nematodes
• B. Annelids
• C. Gastropods
• D. Arthropods

Answer: (A)

In turfgrass soils, a huge, unseen workforce sustains soil health and nutrient cycling, and nematodes stand out as a major and widely distributed part of the nonpest invertebrate community. These tiny roundworms inhabit the soil’s pore spaces and come in many feeding types: some graze on bacteria or fungi, some prey on other small soil organisms, and some are entomopathogenic nematodes that help control insect larvae. Their sheer abundance and variety mean they play central roles in decomposing organic matter, regulating microbial communities, and providing natural pest suppression, all of which support a healthy turf ecosystem. While earthworms (annelids) and various arthropods or gastropods can also be present and some are beneficial, nematodes are the most representative and characteristic nonpest soil fauna highlighted in turf contexts for their ubiquity and ecological contributions.