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5 results for “Ant–aphid mutualism”
Data from: Progressive sensitivity of trophic levels to warming underlies an elevational gradient in ant-aphid mutualism strength
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Data from: Introduced ants reduce interaction diversity in a multi-species, ant-aphid mutualism
Mutualisms contribute in fundamental ways to the origin, maintenance and organization of biological diversity. Introduced species commonly participate in mutualisms, but how this phenomenon affects patterns of interactions among native mutualists remains incompletely understood. Here we examine how networks of interactions among aphid-tending ants, ant-tended aphids, and aphid-attacking parasitoid wasps differ between 12 spatially paired riparian study sites with and without the introduced Argentine ant Linepithema humile in southern California. To resolve challenges in species identification, we used DNA barcoding to identify aphids and screen for parasitoid wasps (developing inside their aphid hosts) from 170 aphid aggregations sampled on arroyo willow Salix lasiolepis. Compared to uninvaded sites, invaded sites supported significantly fewer species of aphid-tending ants and ant-tended aphids. At invaded sites, for example, we found only two species of ant-tended aphids, which were exclusively tended by L. humile, whereas at uninvaded sites we found 20 unique ant–aphid interactions involving eight species of ant-tended aphids and nine species of aphid-tending ants. Ant–aphid linkage density was thus significantly lower at invaded sites compared to uninvaded sites. We detected aphid parasitoids in 14% (28/198) of all aphid aggregations. Although the level of parasitism did not differ between invaded and uninvaded sites, more species of wasps were detected within uninvaded sites compared to invaded sites. These results provide a striking example of how the assimilation of introduced species into multi-species mutualisms can reduce interaction diversity with potential consequences for species persistence.
A trail pheromone mediates the mutualism between ants and aphids
<p><span>Mutualisms, like the ones between ants and aphids, evolve and persist when benefits outweigh the costs from the interactions between the partners. We show here that the trail pheromone of the red imported fire ant, <i>Solenopsis invicta</i>, can enhance these benefits by suppressing aphid walking dispersal and stimulating their reproduction. The cotton aphid, <i>Aphis gossypii</i>, was found to readily perceive and respond to two specific trail pheromonal components. Both <i>Z</i>,<i>E</i>-<i>a</i>-farnesene and <i>E</i>,<i>E</i>-<i>a</i>-farnesene suppressed walking dispersal of apterous aphids, whereas only <i>Z</i>,<i>E</i>-<i>a</i>-farnesene also increased aphid reproduction rate. This inter-species function of the trail pheromone increases and prolongs the availability of honeydew as a key food source for the ants. The aphid colony, meanwhile, benefits from faster population growth and continuous ant-provided protection. These findings reveal a novel mechanism by which ants and aphids both increase the benefits that they provide to each other, thereby likely enhancing the stability of their mutualistic relationship.</span></p>
A trail pheromone mediates the mutualism between ants and aphids
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Data from: Introduced ants reduce interaction diversity in a multi-species, ant-aphid mutualism
Open the record for dataset details and reuse information.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.