Hierarchical Metapopulation Dynamics of Two Aphid Species on a Shared Host Plant

Zheng, Kaikai; Weisser,; Harri,; Ovaskainen,

doi:10.2307/40306062

Cited by 5 publications

(8 citation statements)

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“…We showed that plants that are closer to other plants with a higher number of aphids are more likely to become occupied (i.e. Zheng et al (2009), for instance, were able to show that colonisation events by M. fuscoviride at the very local scale, i.e. arrival of rescuers: rescue effect; Gotelli, 1991).…”

Section: Aphid Dispersalmentioning

confidence: 79%

Habitat variation, mutualism and predation shape the spatio‐temporal dynamics of tansy aphids

Senft

Weisser

Zytynska

2017

Ecological Entomology

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1. Spatially distributed resources can lead to the formation of metapopulations, where individual subpopulations are often small and can experience frequent local extinction events followed by recolonisation. An example of terrestrial metapopulations are specialised phytophagous insects on their patchily distributed host plants.2. The present study investigated the population dynamics of a specialised aphid (Metopeurum fuscoviride) on its patchily distributed host plant (Tanacetum vulgare) and associated community of mutualistic ants and predators in a small-scale field site. Furthermore, aphid habitat differences (plant size, C/N ratio, location and surrounding vegetation) were quantified, and seasonal timing and precipitation were considered.3. Seasonal timing and precipitation both had effects on aphid colonisation, extinction events and aphid colony persistence. Towards the end of the season, and after higher precipitation, aphid colonisation events decreased and extinction events increased. Plant size and location as well as aphid within-field dispersal determined the spatio-temporal distribution of aphid colonies.4. Mutualistic ants (Lasius niger and Myrmica rubra) increased the chance of establishment of aphid colonies. However, when M. rubra was tending, aphid colony persistence was reduced. Aphid persistence and extinction were dependent on aphid abundance, as a higher colony size reduced the probability of extinction by predation.5. The results emphasise the importance of dispersal limitation, population growth and the presence of mutualists when studying the spatio-temporal dynamics of tansy aphids, particularly in a small-scale field site.

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Section: Aphid Dispersalmentioning

confidence: 79%

Habitat variation, mutualism and predation shape the spatio‐temporal dynamics of tansy aphids

Senft

Weisser

Zytynska

2017

Ecological Entomology

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“…Harrington et al, 1999;Van Asch et al, 2007;Valtonen et al, 2011;McPeek, 2012), not only because of their explosive population growth potential and relatively short generation times, but also because many insects have substantial social and ecological importance, which may be amplified by climatic uncertainty (Waring et al, 2009). Zheng et al, 2009). As a result, significant interest has re-emerged around evaluating both endogenous and exogenous drivers of insect population dynamics (e.g.…”

Section: Cereal Aphid Population Dynamics 567mentioning

confidence: 99%

Differing contributions of density dependence and climate to the population dynamics of three eruptive herbivores

Davis

Abatzoglou

Bosque‐Pérez

et al. 2014

Ecological Entomology

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1. Although both endogenous and exogenous processes regulate populations, the current understanding of the contributions from density dependence and climate to the population dynamics of eruptive herbivores remains limited.2. Using a 17-year time series of three cereal aphid species [Rhopalosiphum padi L., Metopolophium dirhodum (Walker), and Diuraphis noxia (Kurdumov)] compiled from a trapping network spanning the northwestern U.S.A., temporal and spatial patterns associated with population fluctuations, and modelled density dependence in aphid abundances were tested. These models were used to analyse correlations between climate and aphid abundances in the presence and absence of residual variance as a result of density-dependent effects.3. The temporal dynamics of aphid population fluctuations indicated periodicity, with no clear evidence for a spatial pattern underlying population fluctuations.4. Aphid abundances oscillated in a manner consistent with delayed density dependence for all three aphid species, although the strength of these feedbacks differed among species.5. Diuraphis noxia abundances were negatively correlated with increasing temperatures in the absence of density-dependent effects, whereas M. dirhodum abundances were positively correlated with increasing cumulative precipitation in the presence of density-dependent effects; yet, R. padi abundances were unrelated to climate variables irrespective of population feedbacks.6. Our analysis suggests that endogenous feedbacks differentially regulate aphid populations in the northwestern U.S.A., and these feedbacks may operate at an expansive spatial scale. It is concluded that the contributions of density dependence and climate to aphid population dynamics are species-specific in spite of similar ecological niches, with implications for assessing species responses to climate variability.

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“…The host-parasitoid system comprising the specialist wasp parasitoid, Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae: Aphidiinae) attacking the specialist aphid, Metopeurum fuscoviride Stroyan (Hemiptera: Aphididae), which feeds exclusively on tansy, Tanacetum vulgare L. (family Asteracae), has a classic metapopulation structure (Weisser, 2000;Zheng et al, 2009). In a field study, Weisser (2000) reported frequent extinction events for the aphid, M. fuscoviride, and as a direct consequence, of the parasitoid L. hirticornis, at the level of tansy plants ( ¼ genets) and shoots ( ¼ ramets).…”

Section: Introductionmentioning

confidence: 99%

Spatial population dynamics of a specialist aphid parasitoid, Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae: Aphidiinae): evidence for philopatry and restricted dispersal

et al. 2010

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Within insect communities, the population ecology of organisms representing higher trophic levels, for example, hymenopterous parasitoids, may be influenced by the structure of their insect hosts. Using microsatellite markers and ecological data, we investigated the population structure of the specialist braconid wasp parasitoid, Lysiphlebus hirticornis Mackauer attacking Metopeurum fuscoviride, a specialist aphid feeding on tansy, Tanacetum vulgare. Previous studies revealed that M. fuscoviride has a classic metapopulation structure with high subpopulation turnover. In this study, up to 100% of ramets within a host plant genet colonized by aphids were colonized by the parasitoid, yet plants with aphids but no parasitoids were also observed. Genetic differentiation measured by F ST , actual differentiation (D) and relative differentiation (G ST ) indicated highly structured parasitoid population demes, with restricted gene flow among and between parasitoid subpopulations at the various sites. Interestingly, both field data and population assignment analysis showed that the parasitoid is highly philopatric. Thus, despite the frequent local extinctions of the aphid host, the parasitoid continuously exploits its aphid host and contributes to the demise of local aphid subpopulations, rather than spreading its genes over many aphid populations. F ST values for the haplodiploid parasitoid were similar to those found in an independent study of the diploid aphid host, M. fuscoviride, hence supporting the view that an insect herbivore's population structure directly influences the ecology and genetics of the higher trophic level, in this case the wasp parasitoid.

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Hierarchical Metapopulation Dynamics of Two Aphid Species on a Shared Host Plant

Cited by 5 publications

References 0 publications

Habitat variation, mutualism and predation shape the spatio‐temporal dynamics of tansy aphids

Habitat variation, mutualism and predation shape the spatio‐temporal dynamics of tansy aphids

Differing contributions of density dependence and climate to the population dynamics of three eruptive herbivores

Spatial population dynamics of a specialist aphid parasitoid, Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae: Aphidiinae): evidence for philopatry and restricted dispersal

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