ORCID Profile
0000-0003-3043-7628
Current Organisations
Macquarie University
,
Universität Hamburg
,
Max-Planck-Institut fur chemische Okologie Abteilung für Molekulare Ökologie
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Publisher: Wiley
Date: 06-05-2018
DOI: 10.1111/ETH.12749
Publisher: American Arachnological Society
Date: 30-09-2020
Publisher: PeerJ
Date: 22-03-2022
DOI: 10.7717/PEERJ.12839
Abstract: Many ecological interactions of spiders with their potential prey and predators are affected by the visibility of their bodies and silk, especially in habitats with lower structural complexity that expose spiders. For instance, the surface of tree trunks harbours relatively limited structures to hide in and may expose residents to visual detection by prey and predators. Here we provide the first detailed description of the novel retreat building strategy of the tree trunk jumping spider Arasia mullion . Using fields surveys, we monitored and measured over 115 spiders and 554 silk retreats. These spiders build silk retreats on the exposed surface of tree trunks, where they remain as sedentary permanent residents. Furthermore, the spiders decorate the silk retreats with bark debris that they collect from the immediate surrounding. We discuss the role of silk decoration in the unusual sedentary behaviour of these spiders and the potential mechanisms that allow A. mullion to engineer their niche in a challenging habitat.
Publisher: Proceedings of the National Academy of Sciences
Date: 19-09-2022
Abstract: Spiders, the most specious taxon of predators, have evolved an astounding range of predatory strategies, including group hunting, specialized silk traps, pheromone-loaded bolas, and aggressive mimicry. Spiders that hunt prey defended with behavioral, mechanical, or chemical means are under additional selection pressure to avoid injury and death. Ants are considered dangerous because they can harm or kill their predators, but some groups of spiders, such as the Theridiidae, have a very high ersification of ant-hunting species and strategies [J. Liu et al., Mol. Phylogenet. Evol . 94, 658–675 (2016)]. Here, we provide detailed behavioral analyses of the highly acrobatic Australian ant-slayer spider, Euryopis umbilicata (Theridiidae), that captures much larger and defended C onotus ants on vertical tree trunks. The hunting sequence consists of ritualized steps performed within split seconds, resulting in an exceptionally high prey capture success rate.
Publisher: Elsevier BV
Date: 10-2014
DOI: 10.1016/J.BEPROC.2014.09.014
Abstract: Like many other nocturnal arthropods, the amblypygid Phrynus pseudoparvulus is capable of homing. The environment through which these predators navigate is a dense and heterogeneous tropical forest understory and the mechanism(s) underlying their putatively complex navigational abilities are presently unknown. This study explores the sensory inputs that might facilitate nocturnal navigation in the amblypygid P. pseudoparvulus. Specifically, we use sensory system manipulations in conjunction with field displacements to examine the potential involvement of multimodal - olfactory and visual - stimuli in P. pseudoparvulus' homing behavior. In a first experiment, we deprived in iduals of their olfactory capacity and displaced them to the opposite side of their home trees (<5m). We found that olfaction-intact in iduals were more likely to be re-sighted in their home refuges than olfaction-deprived in iduals. In a second experiment, we independently manipulated both olfactory and visual sensory capacities in conjunction with longer-distance displacements (8m) from home trees. We found that sensory-intact in iduals tended to be re-sighted on their home tree more often than sensory-deprived in iduals, with a stronger effect of olfactory deprivation than visual deprivation. Comparing across sensory modality manipulations, olfaction-manipulated in iduals took longer to return to their home trees than vision-manipulated in iduals. Together, our results indicate that olfaction is important in the nocturnal navigation of P. pseudoparvulus and suggest that vision may also play a more minor role.
Publisher: American Arachnological Society
Date: 11-2012
DOI: 10.1636/HI12-23.1
Location: Germany
No related grants have been discovered for Alfonso Aceves Aparicio.