Where Do Dung Beetles Live? From Rainforests to Deserts
Where do dung beetles live? On every continent except Antarctica, wherever there’s a steady supply of animal droppings to feed on. There are several thousand described species in the subfamily Scarabaeinae alone, and their range stretches from Amazonian rainforest floors to the Kalahari and Australian outback, tracking the herds and herbivores that supply their food.
What Counts as a Dung Beetle
Dung beetles belong to the superfamily Scarabaeoidea, mostly in the subfamilies Scarabaeinae and Aphodiinae within the family Scarabaeidae. Nearly all of them are detritivores that use dung both as food and as a nursery: adults feed on the liquid fraction of manure, and females pack the solid fraction into balls or underground chambers to provision their larvae. The San Diego Zoo notes that dung beetles are found on every continent except Antarctica, with species ranging from a few millimeters up to the fist-sized Heliocopris of Africa and Asia.
Global Range
Dung beetle distribution tracks two things: climate and the presence of dung-producing mammals. Species diversity peaks in warm, wet regions with large herbivore populations and drops off toward the poles and the driest deserts.
Tropical Forests
The tropics hold the bulk of known dung beetle diversity. In Central and South America, Brazil, Colombia, and Ecuador support hundreds of species living off the droppings of tapirs, peccaries, and monkeys. Southeast Asian rainforests in Indonesia and Malaysia hold comparably rich faunas tied to elephants, deer, and primates. Large-bodied mammals matter here: a single elephant produces a large volume of dung daily, enough to draw many beetle species to a single pile soon after it’s deposited.
Temperate Grasslands and Pastures
Temperate zones carry far fewer species than the tropics but still support working populations. In North America, cattle pastures across the Great Plains and the Southeast host species such as Onthophagus taurus, a beetle of European origin that Cornell’s Integrated Pest Management program notes was introduced in the 1970s and has since expanded its range across eastern North America. European pastures support their own native fauna feeding on cattle, horse, and deer droppings. Beetle activity in these regions is strongly seasonal, peaking in the warmer months when herbivore grazing and dung output rise.
Arid and Semi-Arid Regions
Dry landscapes are not empty of dung beetles, though the mix of species narrows. African savannas, despite low rainfall, support large herds of antelope and other grazers, while the ball-rolling Scarabaeus sacer is native to the drier parts of southern Europe, North Africa, and West Asia rather than sub-Saharan grassland. Australia’s arid interior beetles rely on the sporadic dung pulses that follow rain and the seasonal movement of kangaroos and other native grazers. Many of these species conserve water by processing dung quickly and retreating underground during the hottest hours.
Habitat Types Beyond Climate
Within any climate band, dung beetles sort further by habitat structure and dung source.
Open Grassland
Grasslands give beetles direct, low-competition access to dung from grazing herds, which is why open pasture and savanna carry some of the highest beetle densities per dung pile.
Forest Floor
Forest species work in shade and leaf litter, often relying on scattered dung from smaller, dispersed mammals rather than herd animals, and some nest inside rotting logs.
Farmland
Cattle, hog, and poultry operations created a new large-scale dung source over the last few centuries. Beetles that colonize manure on working farms speed up decomposition, which cuts breeding habitat for pest flies and reduces nutrient runoff.
Urban Parks
A handful of adaptable species persist in city parks and green spaces, feeding on dog waste and other small deposits where wild herbivore dung is scarce.
Ecological Role
Dung beetle behavior falls into three functional groups: rollers, which shape dung into a ball and roll it away before burying it; tunnelers, which dig straight down beneath a dung pat and pack side chambers with brood balls; and dwellers, which simply live and breed inside the pile itself without moving it. The San Diego Zoo reports that dung beetles can move dung balls weighing up to 50 times their own body weight. All three groups drive the same broad benefits:
- Nutrient cycling: burying dung returns nitrogen and other nutrients to the soil instead of letting them volatilize or wash away.
- Soil structure: tunneling loosens compacted soil and improves water infiltration around plant roots.
- Fly and parasite suppression: removing dung quickly cuts the breeding window for pest flies and interrupts the life cycle of livestock parasites.
- Ecosystem monitoring: because beetle communities respond fast to changes in land use and grazing pressure, researchers use them as an indicator group for habitat health.
Pressures on Dung Beetle Populations
Three pressures show up repeatedly in the research on declining populations:
- Habitat conversion: converting grassland and forest to cropland or urban development removes both the dung supply and the ground the beetles need for burrows.
- Shifting rainfall and temperature: changes in seasonal rainfall alter when dung is available and when beetles can breed.
- Livestock deworming drugs: residues from ivermectin and related parasiticides pass through cattle into their dung and are toxic to the beetles and larvae that feed on it.
Why Range Matters
A beetle species’ range is set almost entirely by where its preferred dung source lives and how much moisture the local climate offers. That link is also why dung beetles make useful proxies for tracking the health of grazing land: where the beetles disappear, the mammals or the habitat structure they depend on are usually already in trouble.
