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Yi J, Wan J, Tielbörger K, Tao Z, Siemann E, Huang W. Specialist reassociation and residence time modulate the evolution of defense in invasive plants: A meta-analysis. Ecology 2024; 105:e4253. [PMID: 38272490 DOI: 10.1002/ecy.4253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 11/11/2023] [Accepted: 12/22/2023] [Indexed: 01/27/2024]
Abstract
Invasive plants typically escape specialist herbivores but are often attacked by generalist herbivores in their introduced ranges. The shifting defense hypothesis suggests that this will cause invasive plants to evolve lower resistance against specialists, higher resistance against generalists, and greater tolerance to herbivore damage. However, the duration and direction of selective pressures can shape the evolutionary responses of resistance and tolerance for invasive plants. Two critical factors are (1) residence time (length of time that an invasive species has been in its introduced range) and (2) specialist herbivore reassociation (attack by purposely or accidentally introduced specialists). Yet, these two factors have not been considered simultaneously in previous quantitative syntheses. Here, we performed a meta-analysis with 367 effect sizes from 70 studies of 35 invasive plant species from native and invasive populations. We tested how the residence time of invasive plant species and specialist reassociation in their introduced ranges affected evolutionary responses of defenses against specialists and generalists, including herbivore resistance traits (physical barriers, digestibility reducers and toxins), resistance effects (performance of and damage caused by specialists or generalists) and tolerance to damage (from specialists or generalists). We found that residence time and specialist reassociation each significantly altered digestibility reducers, specialist performance, generalist damage, and tolerance to specialist damage. Furthermore, residence time and specialist reassociation strongly altered toxins and generalist performance, respectively. When we restricted consideration to invasive plant species with both longer residence times and no reassociation with specialists, invasive populations had lower resistance to specialists, similar resistance to generalists, and higher tolerance to damage from both herbivore types, compared with native populations. We conclude that the duration and direction of selective pressure shape the evolutionary responses of invasive plants. Under long-term (long residence time) and stable (no specialist reassociation) selective pressure, invasive plants generally decrease resistance to specialists and increase tolerance to generalist damage that provides mixed support for the shifting defense hypothesis.
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Affiliation(s)
- Jiahui Yi
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jinlong Wan
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Department of Evolution and Ecology, University of Tübingen, Tübingen, Germany
| | - Katja Tielbörger
- Department of Evolution and Ecology, University of Tübingen, Tübingen, Germany
| | - Zhibin Tao
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Evan Siemann
- Department of Biosciences, Rice University, Houston, Texas, USA
| | - Wei Huang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
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Bucharova A, Bossdorf O, Hölzel N, Kollmann J, Prasse R, Durka W. Mix and match: regional admixture provenancing strikes a balance among different seed-sourcing strategies for ecological restoration. CONSERV GENET 2018. [DOI: 10.1007/s10592-018-1067-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Hogg BN, Moran PJ, Smith L. Impacts of the Psyllid Arytinnis hakani (Homoptera: Psyllidae) on Invasive French Broom in Relation to Plant Size and Psyllid Density. ENVIRONMENTAL ENTOMOLOGY 2017; 46:552-558. [PMID: 28402389 DOI: 10.1093/ee/nvx074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Indexed: 06/07/2023]
Abstract
The impacts of weed biological control agents may vary with plant ontogeny. As plants grow, structural and chemical changes can alter plant resistance, which may reduce herbivory via chemical or structural defenses, and plant tolerance, which may enable plants to maintain fitness despite attack. Resistance and tolerance generally increase as plants grow. Nonetheless, prerelease tests of agent efficacy often overlook plant ontogeny. Here, we assess the performance and impacts of a candidate biocontrol agent, the psyllid Arytinnis hakani (Loginova), in relation to the age of its host plant, the invasive shrub French broom, Genista monspessulana. We also examined whether the psyllid can consistently kill plants when its densities are sufficiently high. Survival of psyllids to adulthood and the timing of adult emergence did not differ between plant sizes, indicating that performance of nymphs was not influenced by plant size. However, adult psyllid survival was reduced on small plants, suggesting that nymphs and adults responded differently to ontogenetic changes in plant quality. Psyllids affected the growth of small and large plants similarly; all measured plant growth parameters were lower in the presence of psyllids regardless of plant size. In a separate experiment, effects on plant survival depended on psyllid density, as higher realized densities of ∼9 psyllids per cm stem length were necessary to consistently kill plants. Thus, results suggest that the psyllid would be equally effective on a range of plant sizes, particularly at high densities, and show the potential of the psyllid to help control French broom in California.
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Affiliation(s)
- Brian N Hogg
- USDA-ARS, Exotic and Invasive Weeds Research Unit, 800 Buchanan St., Albany, CA (; ; )
| | - Patrick J Moran
- USDA-ARS, Exotic and Invasive Weeds Research Unit, 800 Buchanan St., Albany, CA (; ; )
| | - Lincoln Smith
- USDA-ARS, Exotic and Invasive Weeds Research Unit, 800 Buchanan St., Albany, CA (; ; )
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Bucharova A. Assisted migration within species range ignores biotic interactions and lacks evidence. Restor Ecol 2016. [DOI: 10.1111/rec.12457] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Anna Bucharova
- Department of Plant Evolutionary Ecology, Institute of Evolution and Ecology; Karl Eberhard University; Tübingen 72076 Germany
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Smith L. Prediction of the geographic distribution of the psyllid, Arytinnis hakani (Homoptera: Psyllidae), a prospective biological control agent of Genista monspessulana, based on the effect of temperature on development, fecundity, and survival. ENVIRONMENTAL ENTOMOLOGY 2014; 43:1389-1398. [PMID: 25199116 DOI: 10.1603/en14086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The psyllid, Arytinnis hakani (Loginova), is a prospective biological control agent of Genista monspessulana (French broom), an invasive shrub originating from western Europe. It is a multivoltine species that is not known to diapause. The insect is established in Australia, where it appears to cause heavy defoliation and mortality of the target weed, except at warm sunny sites. This suggests that bright light or high temperatures may hamper the agent. We measured the effect of temperature on development rate, survival, and fecundity of the psyllid to determine its suitable temperature range. Intrinsic rate of increase was highest near 22°C, and there was no population growth at the extremes of 5°C and 26°C. Net reproductive rate was highest at 16.5°C. Fecundity was highest at 22°C, and decreased to half at 16°C and at 27°C. Adult female longevity decreased with increasing temperature over the range studied. Nymphal survivorship was highest at 16°C and dropped to 0% at 5°C and 26°C. Eggs were able to complete development in 83 d at 5°C, but with only 20% survivorship versus 78-95% survivorship at higher temperatures. For populations with a stable age distribution, only 2-3% of the population is in the adult stage. Climate modeling using CLIMEX indicated that the geographic distribution of the psyllid is constrained by high temperature stress in Australia. The psyllid is predicted to be suitable in coastal California but not in the Sierra foothills.
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Affiliation(s)
- Lincoln Smith
- Exotic and Invasive Weeds Research Unit, USDA Agricultural Research Service, 800 Buchanan Street, Albany, CA 94710, USA
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Bezemer TM, Harvey JA, Cronin JT. Response of native insect communities to invasive plants. ANNUAL REVIEW OF ENTOMOLOGY 2013; 59:119-141. [PMID: 24160425 DOI: 10.1146/annurev-ento-011613-162104] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Invasive plants can disrupt a range of trophic interactions in native communities. As a novel resource they can affect the performance of native insect herbivores and their natural enemies such as parasitoids and predators, and this can lead to host shifts of these herbivores and natural enemies. Through the release of volatile compounds, and by changing the chemical complexity of the habitat, invasive plants can also affect the behavior of native insects such as herbivores, parasitoids, and pollinators. Studies that compare insects on related native and invasive plants in invaded habitats show that the abundance of insect herbivores is often lower on invasive plants, but that damage levels are similar. The impact of invasive plants on the population dynamics of resident insect species has been rarely examined, but invasive plants can influence the spatial and temporal dynamics of native insect (meta)populations and communities, ultimately leading to changes at the landscape level.
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Affiliation(s)
- T Martijn Bezemer
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708 PB Wageningen, The Netherlands; ,
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