The importance of plant relatedness for host utilization among phytophagous insects

Ødegaard, Frode; Diserud, Ola Håvard; Østbye, Kjartan

doi:10.1111/j.1461-0248.2005.00758.x

Cited by 122 publications

(183 citation statements)

References 30 publications

(63 reference statements)

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“…This correlation explained an astonishingly high 25% of the variance in faunal similarity. In a similar analysis, Ødegaard et al (112) explained an even higher proportion (35%) of the variance in faunal similarity of beetles on Panamanian plant species by phylogenetic distance.…”

Section: Consequences Of Macroevolution For Ecological Communitiesmentioning

confidence: 84%

Macroevolution and the biological diversity of plants and herbivores

Futuyma

Agrawal

2009

Proc. Natl. Acad. Sci. U.S.A.

518

456

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Terrestrial biodiversity is dominated by plants and the herbivores that consume them, and they are one of the major conduits of energy flow up to higher trophic levels. Here, we address the processes that have generated the spectacular diversity of flowering plants (>300,000 species) and insect herbivores (likely >1 million species). Long-standing macroevolutionary hypotheses have postulated that reciprocal evolution of adaptations and subsequent bursts of speciation have given rise to much of this biodiversity. We critically evaluate various predictions based on this coevolutionary theory. Phylogenetic reconstruction of ancestral states has revealed evidence for escalation in the potency or variety of plant lineages' chemical defenses; however, escalation of defense has been moderated by tradeoffs and alternative strategies (e.g., tolerance or defense by biotic agents). There is still surprisingly scant evidence that novel defense traits reduce herbivory and that such evolutionary novelty spurs diversification. Consistent with the coevolutionary hypothesis, there is some evidence that diversification of herbivores has lagged behind, but has nevertheless been temporally correlated with that of their host-plant clades, indicating colonization and radiation of insects on diversifying plants. However, there is still limited support for the role of host-plant shifts in insect diversification. Finally, a frontier area of research, and a general conclusion of our review, is that community ecology and the long-term evolutionary history of plant and insect diversification are inexorably intertwined.coevolution ͉ herbivory ͉ insect host range ͉ phylogenetic analyses ͉ plant defense theory

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Section: Consequences Of Macroevolution For Ecological Communitiesmentioning

confidence: 84%

Macroevolution and the biological diversity of plants and herbivores

Futuyma

Agrawal

2009

Proc. Natl. Acad. Sci. U.S.A.

518

456

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“…Th e most abundant plant species (i.e., those with most biomass or cover) tend to be related to a greater number of herbivore species ( Basset, 1991 ;Marques et al, 2000 ;Whitfeld et al, 2012 ) simply by having a greater probability of being found, that is, a greater apparency ( Feeny, 1976 ). However, in the particular case of tropical systems, where herbivorous insects are highly specialized to their host plants ( Novotny et al, 2002 ;Novotny and Basset, 2005 ;Ødegaard et al, 2005 ;Weiblen et al, 2006 ;Forister et al, 2012Forister et al, , 2015, it is likely that species strength is independent from the host plants biomass or abundance. In this case, plant resistance traits play an important role infl uencing herbivore preferences ( Coley and Barone, 1996 ;Stamp, 2003 ;Agrawal, 2005 ;Poelman et al, 2008 ) and thus their species strength, or their relative importance as food for herbivores.…”

Section: Study Site -Fieldwork Was Done At the Centro De Investigacionesmentioning

confidence: 94%

“…Th is discrepancy could be the result of diff erences in the degree of generalization between these types of networks; whereas networks of mutualistic interactions tend toward generalization ( Bascompte et al, 2006 ), plant-herbivore networks are highly specialized ( Prado and Lewinsohn, 2004 ;Cagnolo et al, 2011 ;López-Carretero et al, 2014 ). Th is specialization has developed from a complex set of ecological, biochemical and historical factors ( Ehrlich and Raven, 1964 ;Novotny et al, 2002 ;Novotny and Basset, 2005 ;Ødegaard et al, 2005 ;Weiblen et al, 2006 ;Gómez-Zurita et al, 2007 ) that, in general, have promoted interactions within subgroups of available plant species regardless of their coverage or density.…”

Section: Discussionmentioning

confidence: 99%

“…Given the reduced number of lianas and herbaceous plant species included in our analysis, these life forms did not predict the variation in species strength and selectiveness of the species in the network, as was the case with the tree and shrub hosts. Th e defenses and counterdefenses involved in the coevolutionary processes of the lianas and their herbivores depends on very specifi c types of chemical defense rather than the generalized defenses such as the leaf phenolics compounds and sclerophyllous tissues common in tropical tree species ( Gentry, 1985 ;Ødegaard et al, 2005 ).…”

Section: Discussionmentioning

confidence: 99%

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Influence of plant resistance traits in selectiveness and species strength in a tropical plant‐herbivore network

López-Carretero

Boege

Díaz‐Castelazo

et al. 2016

American J of Botany

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PREMISE OF THE STUDY:Plant-herbivore networks are highly specialized in their interactions, yet they are highly variable with regard to the relative importance of specifi c host species for herbivores. How host species traits determine specialization and species strength in this antagonistic network is still an unanswered question that we addressed in this study. METHODS:We assessed plant cover and antiherbivore resistance traits to assess the extent to which they accounted for the variation in specialization and strength of interactions among species in a plant-herbivore network. We studied a tropical antagonistic network including a diverse herbivore-host plant assemblages in diff erent habitat types and climatic seasons, including host plants with diff erent life histories.KEY RESULTS: Particular combinations of leaf toughness, trichome density, and phenolic compounds infl uenced herbivore specialization and host species strength, but with a signifi cant spatiotemporal variation among plant life histories. Conversely, plant-herbivore network parameters were not infl uenced by plant cover. CONCLUSIONS:Our study highlights the importance of species-specifi c resistance traits of plants to understand the ecological and evolutionary consequences of plant-herbivore interaction networks. The novelty of our research lies in the use of a trait-based approach to understand the variation observed in diverse plant-herbivore networks.

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“…Generally, the successful colonization of a novel host by an herbivorous insect is affected by a number of factors, including phylogenetic relatedness of the novel plant to its original host plant (e.g., Odegaard et al, 2005;Ness et al, 2011;Karolewski et al, 2014), the duration of con-cographella has two generations per year. First-generation larvae are usually active in July, whereas the second, overwintering generation is observed from the end of August until April.…”

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confidence: 99%

Maladaptive host choice by an alien leaf miner Phyllonorycter leucographella (Lepidoptera: Gracillariidae) has the potential to limit its invasiveness

Walczak¹,

Bogdziewicz²,

Żytkowiak³

et al. 2018

Eur. J. Entomol.

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Abstract. Alien phytophagous insects are often introduced along with their host plants, creating opportunities for troublesome invasions. Yet, not all of them are able to successfully colonize novel host plants. In this study, we investigated host selection by the alien leaf miner Phyllonorycter leucographella (Zeller, 1850) on both its original host and novel host plants in the insect's alien range. We predicted that this insect's percentage infestation of the original host would be positively related to its specifi c leaf area (SLA), because high-SLA leaves are nutritious and have thin cuticles, traits related to high offspring developmental success. We further hypothesized that this host selection process would apply in the selection of novel host plants. Our results show that this leaf miner selects leaves of its original host plant, Pyracantha coccinea, according to their SLA values. The SLA value was also positively related to the probability of P. leucographella infesting and successfully developing on novel host plants. The selection of high-SLA plants by the moth leads to a high developmental success on novel host plants in the fi rst (summer) generation, but it is likely to be maladaptive in the second (overwintering) generation, because in temperate Europe, high SLA values are associated with deciduous plants that shed their leaves in autumn. It is likely that the apparent maladaptive selection of novel host plants by P. leucographella reduces the invasiveness of this pest by preventing its establishment on native plants.

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The importance of plant relatedness for host utilization among phytophagous insects

Cited by 122 publications

References 30 publications

Macroevolution and the biological diversity of plants and herbivores

Macroevolution and the biological diversity of plants and herbivores

Influence of plant resistance traits in selectiveness and species strength in a tropical plant‐herbivore network

Maladaptive host choice by an alien leaf miner Phyllonorycter leucographella (Lepidoptera: Gracillariidae) has the potential to limit its invasiveness

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