Does the whistling thorn acacia (Acacia drepanolobium) use auditory aposematism to deter mammalian herbivores?

Plant Signal Behav

a Department of Biology & Environment, Faculty of Natural Sciences , University of Haifa - Oranim, Israel.

Published: August 2016

Auditory signaling including aposematism characterizes many terrestrial animals. Auditory aposematism by which certain animals use auditory aposematic signals to fend off enemies is well known for instance in rattlesnakes. Auditory signaling by plants toward animals and other plants is an emerging area of plant biology that still suffers from limited amount of solid data. Here I propose that auditory aposematism operates in the African whistling thorn acacia (Acacia drepanolobium = Vachellia drepanolobium). In this tree, the large and hollow thorn bases whistle when wind blows. This type of aposematism compliments the well-known conspicuous thorn and mutualistic ant based aposematism during day and may operate during night when the conspicuous thorns are invisible.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5022412PMC
http://dx.doi.org/10.1080/15592324.2016.1207035DOI Listing

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Does the whistling thorn acacia (Acacia drepanolobium) use auditory aposematism to deter mammalian herbivores?

Plant Signal Behav

August 2016

a Department of Biology & Environment, Faculty of Natural Sciences , University of Haifa - Oranim, Israel.

Auditory signaling including aposematism characterizes many terrestrial animals. Auditory aposematism by which certain animals use auditory aposematic signals to fend off enemies is well known for instance in rattlesnakes. Auditory signaling by plants toward animals and other plants is an emerging area of plant biology that still suffers from limited amount of solid data.

View Article and Find Full Text PDF

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