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Germination of fruits eaten by the maned wolf Chrysocyon brachyurus (Illiger, 1815) (Carnivora, Canidae)

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BIOTA NEOTROPICA
卷 23, 期 3, 页码 -

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REVISTA BIOTA NEOTROPICA
DOI: 10.1590/1676-0611-BN-2022-1413

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Frugivory; germination; maned wolf; seed dispersal; zoochory

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This study investigated the role of the maned wolf in seed dispersal and found that the seeds consumed by the wolf had a high germination rate. This suggests that the maned wolf may play an important role in the restoration of ecosystems in the contact zone between the Cerrado and Atlantic Forest.
Zoochory is a fundamental process that can be the main mechanism for seed and plant dispersal for many species. Mammals of the Carnivora order are among the most important dispersing agents; however, little is known regarding the role of canids as seed dispersers. Although the maned wolf (Chrysocyon brachyurus) has a potentially important role in seed dispersal, given its relatively high consumption of fruits, few studies have investigated the germination rate of ingested seeds. Here, we used seeds removed from the feces of two captive specimens (maned wolf treatment) and those directly collected from unconsumed fruits (control) in germination essays to evaluate the germination rate and emergence velocity index (IVE). We used mature fruits from five species of trees in the Cerrado and Atlantic Forest in a 5 (species) x 2 (method of seed collection) factorial arrangement. The passage of seeds through the digestive tract of the maned wolf favored the germination of Genipa americana and Psidium guajava, delayed germination of Psidium cattleianum, and maintained the germination of Plinia cauliflora and Ficus obtusifolia. Our results revealed that germination occurred for all tested plant species consumed by the maned wolf; therefore, this canid species has high dispersal potential and can be an important ally in the restoration of the Cerrado and Atlantic Forest-Cerrado contact zone ecosystems.

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