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Desert Seeds: Wolves and Foxes as Sahara's Gardeners
14 Oct
Summary
- Carnivore droppings in the Sahara revealed intact seeds from eight plant species.
- Wolves favored Ziziphus lotus, while foxes preferred berries from other shrubs.
- Most seeds were deposited in optimal germination spots like dry riverbeds.
In the hyper-arid Sahara Desert, carnivores like wolves and foxes may be crucial for spreading plant life. A 2026 study analyzed 597 fecal samples from North African golden wolves, red foxes, Rüppell's foxes, and honey badgers.
Researchers discovered intact seeds from eight distinct plant species, including Ziziphus lotus, date palm, and Ephedra alata, within the droppings. These seeds, which averaged 12.9 intact seeds per dropping, are vital for propagation as they retain their ability to grow.
Distinct feeding preferences were observed: wolves favored Ziziphus lotus drupes, while foxes opted for berries from Lycium shawii and Asparagus altissimus. These carnivores are adept at consuming fallen fruits and their extensive territories make them effective long-distance seed dispersers.
Remarkably, 72.4 percent of the intact seeds were found in optimal germination sites like dry riverbeds and ravines. This strategic deposition by canids is considered essential for colonizing new areas and conserving fragile desert ecosystems.
