Predicting the effect of habitat modification on networks of interacting species

Staniczenko, Phillip P. A.; Lewis, Owen T.; Tylianakis, Jason M.; Albrecht, Matthias; Coudrain, Valérie; Klein, Alexandra‐Maria; Reed‐Tsochas, Felix

doi:10.1038/s41467-017-00913-w

Cited by 35 publications

(51 citation statements)

References 34 publications

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“…Using mean values for each species could miss details regarding the distribution of interactions over the landscape; however, complementary analysis using linear mixed models shows broadly similar trends (see Appendix ). Insects are likely to have uneven preferences for resources/hosts (Staniczenko et al ), which may depend on the habitat where the interactions occur (Staniczenko et al ; see Appendices and ). For instance, parasitising behaviour translates into variable interaction frequencies depending on the habitat type (Staniczenko et al ).…”

Section: Discussionmentioning

confidence: 99%

“…Insects are likely to have uneven preferences for resources/hosts (Staniczenko et al ), which may depend on the habitat where the interactions occur (Staniczenko et al ; see Appendices and ). For instance, parasitising behaviour translates into variable interaction frequencies depending on the habitat type (Staniczenko et al ). Similarly, other insect species may swap resources between habitats, because of changes in competitors rather than in interaction partners (Poisot et al ).…”

Section: Discussionmentioning

confidence: 99%

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Reshaping our understanding of species’ roles in landscape‐scale networks

et al. 2019

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In network ecology, landscape‐scale processes are often overlooked, yet there is increasing evidence that species and interactions spill over between habitats, calling for further study of interhabitat dependencies. Here, we investigate how species connect a mosaic of habitats based on the spatial variation of their mutualistic and antagonistic interactions using two multilayer networks, combining pollination, herbivory and parasitism in the UK and New Zealand. Developing novel methods of network analysis for landscape‐scale ecological networks, we discovered that few plant and pollinator species acted as connectors or hubs, both within and among habitats, whereas herbivores and parasitoids typically have more peripheral network roles. Insect species’ roles depend on factors other than just the abundance of taxa in the lower trophic level, exemplified by larger Hymenoptera connecting networks of different habitats and insects relying on different resources across different habitats. Our findings provide a broader perspective for landscape‐scale management and ecological community conservation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Reshaping our understanding of species’ roles in landscape‐scale networks

et al. 2019

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“…However, because insect herbivory and parasitism rate are edge‐dependent (Maron & Crone, ; Reeve & Cronin, ), our results might nevertheless be indicative of the direction of change for plant and animal populations and communities at larger spatial scales as a result of climate warming, although more research is necessary. Although all simulated climate warming methods have limitations (de Sassi et al., ), they are nevertheless one of the few tools available in empirically testing how ecosystems response to climate change and provide much‐needed data for predictive network models (Staniczenko et al., ). In the future, complementary approaches including large‐scale field experiments and small‐scale mesocosms or laboratory experiments (see Romo & Tylianakis, ) might give a more comprehensive view of the ecosystem response to climate change.…”

Section: Discussionmentioning

confidence: 99%

Climate warming alters the structure of farmland tritrophic ecological networks and reduces crop yield

et al. 2018

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It is unclear how sustained increases in temperature and changes in precipitation, as a result of climate change, will affect crops and their interactions with agricultural weeds, insect pests and predators, due to the difficulties in quantifying changes in such complex relationships. We simulated the combined effects of increasing temperature (by an average of 1.4°C over a growing season) and applying additional rainwater (10% of the monthly mean added weekly, 40% total) using a replicated, randomized block experiment within a wheat crop. We examined how this affected the structure of 24 quantitative replicate plant–aphid–parasitoid networks constructed using DNA‐based methods. Simulated climate warming affected species richness, significantly altered consumer–resource asymmetries and reduced network complexity. Increased temperature induced an aphid outbreak, but the parasitism rates of aphids by parasitoid wasps remained unchanged. It also drove changes in the crop, altering in particular the phenology of the wheat as well as its quality (i.e., fewer, lighter seeds). We discuss the importance of considering the wider impacts of climate change on interacting species across trophic levels in agroecosystems.

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“…Models aimed at predicting how networks of interactions will respond to environmental changes and global warming are being developed (Staniczenko et al, 2017). Multiple types of interactions (e.g.…”

Section: Future Directionsmentioning

confidence: 99%

Mechanisms structuring host–parasitoid networks in a global warming context: a review

Thierry

Hrček

Lewis

2019

Ecological Entomology

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1. In natural communities, multiple host and parasitoid species are linked to form complex networks of trophic and non-trophic interactions. Understanding how these networks will respond to global warming is of wide relevance for agriculture and conservation.2. This study synthesises the emerging evidence surrounding host-parasitoid networks in the context of global warming. The suite of direct and indirect interaction types within host-parasitoid networks is summarised, as well as their sensitivity to temperature changes. The study also compiles and reviews studies investigating the responses of whole host-parasitoid networks to increasing temperatures or proxy variables. The findings reveal there is limited evidence overall for the prediction that parasitism will be reduced under global warming: approximately equal numbers of studies show elevated and reduced parasitism.3. Increasingly, endosymbiotic bacteria are recognised as influential mediators of host-parasitoid interactions. These endosymbionts can change how individual species respond to global warming, and their effects can cascade to affect whole host-parasitoid networks. The evidence that symbiotic bacteria are likely to affect the response of host-parasitoid networks to global warming is reviewed. Symbionts can protect hosts from their parasitoids or influence thermal tolerance of their host species. Furthermore, the symbionts themselves can be impacted by global warming.4. Finally, the study considers the most promising avenues for future research into the mechanisms structuring host-parasitoid networks in the context of global warming. Alongside the increasing availability of modern molecular methods to document the structure of real, species-rich host-parasitoid networks, the study highlights the utility of manipulative experiments and mathematical models.

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Predicting the effect of habitat modification on networks of interacting species

Cited by 35 publications

References 34 publications

Reshaping our understanding of species’ roles in landscape‐scale networks

Reshaping our understanding of species’ roles in landscape‐scale networks

Climate warming alters the structure of farmland tritrophic ecological networks and reduces crop yield

Mechanisms structuring host–parasitoid networks in a global warming context: a review

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