Competitive interactions can be an important ecological factor in shaping species composition and abundance, with resulting implications for the conservation of inferior competitors. Endangered African wild dogs Lycaon pictus are known to suffer from interference competition with lions Panthera leo and spotted hyaenas Crocuta crocuta. Wild dogs have previously been shown to avoid areas frequented by superior intraguild competitors. Here, we tested the hypothesis that wild dogs also avoid lions and spotted hyaenas in time.To this end, daily activity patterns of sympatric social groups of the three species were recorded simultaneously by multiple observers in Hluhluwe-iMfolozi Park, South Africa. Wild dogs showed significantly different daily activity patterns compared to lions and spotted hyaenas, suggesting temporal niche separation. Our results raise the question whether conserving competing predators in small fenced conservation areas will lead to management-induced niche shifts.Saleni et al.
Interference competition in wild dogs2