Evidence map›Paper›PMID 34196845›Full record

ArticleDie Naturwissenschaften2021

Short-term plasticity and variation in acacia ant-rewards under different conditions of ant occupancy and herbivory.

Finote Gijsman, Yorlenis González, Maikol Guevara, Sabrina Amador-Vargas

Abstract read
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In one paragraph

Article in Die Naturwissenschaften, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Finote Gijsman *Department of Biology, Northwestern University, Evanston, IL, USA.ORCID http://orcid.org/0000-0001-6338-2542
Yorlenis GonzálezSmithsonian Tropical Research Institute, Ancón, Panamá.ORCID http://orcid.org/0000-0002-7622-0056
Maikol GuevaraSmithsonian Tropical Research Institute, Ancón, Panamá.ORCID http://orcid.org/0000-0001-8465-5968
Sabrina Amador-Vargas *Smithsonian Tropical Research Institute, Ancón, Panamá. amadors@si.edu.ORCID http://orcid.org/0000-0001-8738-4876

Funding

Smithsonian Tropical Research Institute InternshipSmithsonian Tropical Research Institute Research funds
6 · The paper itself

Abstract

In ant-plant defense mutualisms, plants known as myrmecophytes provide food and shelter to ant partners in exchange for defense against herbivores and pathogens. To ensure interaction pay-off, myrmecophytes must regulate their investment in ant-rewards depending on local conditions and herbivore pressure. We investigated how myrmecophyte investment in multiple ant-rewards relates to herbivory, ant defense, and ant occupancy over time. Specifically, we examined the plasticity of ant-rewards produced by swollen-thorn acacias (Vachellia collinsii) under different ant occupancy and herbivory conditions. We compared food rewards (number of extrafloral nectaries and pinnules as a proxy for food bodies) and housing rewards (domatia dimensions) of V. collinsii for three conditions: (1) occupied (defended by the obligate mutualist Pseudomyrmex spinicola) versus unoccupied trees, (2) occupied trees subject to an experimental herbivory manipulation versus control trees, and (3) trees occupied by different ant species varying in their level of defense (P. spinicola, P. simulans, Crematogaster crinosa). We found that food rewards were more likely to vary in time depending on ant occupancy and resident species. Conversely, housing rewards varied with the condition (occupancy or species of partner) and less through time. A one-time herbivory manipulation did not cause any changes to the ant-rewards produced. Our results reveal short-term plasticity in V. collinsii ant-rewards and demonstrate that myrmecophytes with constitutive rewards can adjust their investment in ant-rewards depending on the presence and identity of ant partners.

Indexed as

AcaciaAntsAnimalsHerbivoryRewardSymbiosisAnt–plant interactionMyrmecophytePseudomyrmexSwollen-thorn acaciaVachellia

Identifiers

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.