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2 results for “Bitis arietans”
Data from: An ambusher's arsenal: chemical crypsis in the puff adder (Bitis arietans)
Ambush foragers use a hunting strategy that places them at risk of predation by both visual and olfaction-oriented predators. Resulting selective pressures have driven the evolution of impressive visual crypsis in many ambushing species, and may have led to the development of chemical crypsis. However, unlike visual crypsis, few studies have attempted to demonstrate chemical crypsis. Field observations of puff adders (Bitis arietans) going undetected by several scent-orientated predator and prey species lead us to investigate chemical crypsis in this ambushing species. We trained dogs (Canis familiaris) and meerkats (Suricata suricatta) to test whether a canid and a herpestid predator could detect B. arietans using olfaction. We also tested for chemical crypsis in five species of active foraging snakes, predicted to be easily detectable. Dogs and meerkats unambiguously indicated active foraging species, but failed to correctly indicate puff adder, confirming that B. arietans employs chemical crypsis. This is the first demonstration of chemical crypsis anti-predatory behavior, though the phenomenon may be widespread among ambushers, especially those that experience high mortality rates due to predation. Our study provides additional evidence for the existence of an ongoing chemically-mediated arms race between predator and prey species.
Data from: An ambusher’s arsenal: chemical crypsis in the puff adder (Bitis arietans)
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