Novel ecosystems have emerged through human intervention and are rapidly expandingaround the world. Whether they can support animal wildlife has generated considerable controversy.Here we developed a new approach to evaluate the ability of a novel forest ecosystem,dominated by the exotic tree species Eucalyptus globulus, to support animal wildlife inthe medium and long term. To evaluate this ability, we took advantage of the fact that speciesterritory size decreases with increasing habitat quality, and we used territoriality of araptor guild composed of Northern Goshawk (Accipiter gentilis), Eurasian Sparrowhawk(A. nisus) and Common Buzzard (Buteo buteo) as indicator. We compared the territorialityof these species in the novel ecosystem with that in other ecosystems found in the literature.Average distances between con-specifics in the novel ecosystem were similar, or evenshorter, than those in other ecosystems. Average distances between Goshawk con-specificswere among the shortest described in the literature. All three species nested preferably
in mixed stands abundant in large exotic trees, with high structural complexity and abundance of native species within the stand. Key factors supporting this diverse and dense raptor community were the special forest management system implemented in the study area
and the agricultural matrix located close to forest plantations that complements the supply
of prey. Our results suggest that forest management that promotes a complex and suitable
forest structure can increase the ability of novel forest ecosystems to support wildlife biodiversity, particularly a diverse nesting community of forest-dwelling raptors and their preys.
The results further suggest the suitability of territoriality for assessing this potential of novel
ecosystemsMinisterio de Ciencia y TecnologíaUniversidad de AlcaláMinisterio de Educación y Cienci
