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13 October 2020 A subterranean ecosystem-engineering rodent influences plant emergence and reproductive strategy in a high-altitude cold desert
Carlos E. Borghi, Alicia Rodríguez Navas, Natalia Andino
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Abstract

Plant emergence from seed banks and from asexual reproduction could be strongly influenced by environmental and biological factors. Among environmental factors, animal disturbances deserve special consideration. In this study we test the hypothesis that disturbances resulting from the burrowing activity of Ctenomys affect plant emergence (sexual and asexual) in the south of the cold Puna desert. Richness and abundance of seedlings and sprouts growing in areas disturbed or undisturbed by Ctenomys were recorded at the beginning and at the end of the vegetative season. In general terms, the activity of Ctenomys does not affect richness of emerging species, but does have a significant influence on the type of emergence. Analyses between areas revealed that seedling emergence was significantly higher than sprout emergence in areas showing Ctenomys activity, whereas no significant differences were found between types of emergence in undisturbed areas. Although vegetative emergence was important, plant emergence from seeds appears to be relevant to the recolonization of areas disturbed by Ctenomys.

© The Author(s) 2020. Published by Oxford University Press on behalf of the American Society of Mammalogists, www.mammalogy.org.
Carlos E. Borghi, Alicia Rodríguez Navas, and Natalia Andino "A subterranean ecosystem-engineering rodent influences plant emergence and reproductive strategy in a high-altitude cold desert," Journal of Mammalogy 101(6), 1601-1608, (13 October 2020). https://doi.org/10.1093/jmammal/gyaa118
Received: 26 December 2019; Accepted: 3 September 2020; Published: 13 October 2020
KEYWORDS
disturbance
puna
seedlings
sprouts
subterranean mammals
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