Effects of Tree Genotypic Diversity and Species Diversity on the Arthropod Community Associated with Big‐leaf Mahogany

Campos‐Navarrete, María José; Munguía-Rosas, Miguel A.; Abdala‐Roberts, Luis; Quinto, Javier; Parra‐Tabla, Víctor

doi:10.1111/btp.12250

Cited by 25 publications

(24 citation statements)

References 34 publications

(104 reference statements)

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“…The former could have mediated the observed tree diversity effects on spiders, as previous work in this plantation reported that mahogany plants in polycultures have higher species richness of insect herbivores relative to mahogany monocultures (Campos‐Navarrete et al . ). Future work is necessary to determine the influence of prey availability relative to other abiotic factors ( e.g., canopy openness and temperature; Gunnarsson , Wise ) and habitat complexity (Uetz ) affecting spider recruitment to tree stands.…”

Section: Discussionmentioning

confidence: 97%

Effects of tree species diversity on a community of weaver spiders in a tropical forest plantation

et al. 2016

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The effects of producer diversity on predators have received little attention in arboreal plant communities, particularly in the tropics. This is particularly true in the case of tree diversity effects on web‐building spiders, one of the most important groups of invertebrate predators in terrestrial plant communities. We evaluated the effects of tree species diversity on the community of weaver spiders associated with big‐leaf mahogany (Swietenia macrophylla) in 19, 21 × 21‐m plots (64 plants/plot) of a tropical forest plantation which were either mahogany monocultures (12 plots) or polycultures (seven plots) that included mahogany and three other tree species. We conducted two surveys of weaver spiders on mahogany trees to evaluate the effects of tree diversity on spider abundance, species richness, diversity, and species composition associated with mahogany. Our results indicated that tree species mixtures exhibited significantly greater spider abundance, species richness, and diversity, as well as differences in spider species composition relative to monocultures. These results could be due to species polycultures providing a broader range of microhabitat conditions favoring spider species with different habitat requirements, a greater availability of web‐building sites, or due to increased diversity or abundance of prey. Accordingly, these results emphasize the importance of mixed forest plantations for boosting predator abundance and diversity and potentially enhancing herbivore pest suppression. Future work is necessary to determine the specific mechanisms underlying these patterns as well as the top‐down effects of increased spider abundance and species richness on herbivore abundance and damage.

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Section: Discussionmentioning

confidence: 97%

Effects of tree species diversity on a community of weaver spiders in a tropical forest plantation

et al. 2016

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“…While we compared the magnitude of plant species and genetic diversity effects on arthropods when these effects were explored within the same study, we were not able to explore potential interactions between plant species and genetic diversity effects because only a handful of studies had incorporated such interactive effects within the experimental design by manipulating plant genetic diversity at different levels of plant species diversity and vice versa (Campos‐Navarrete, Munguia‐Rosas, Abdala‐Roberts, Quinto, & Parra‐Tabla, ; Crawford & Rudgers, ; Hahn et al., ). These results from the above studies suggest that the species richness of plant communities can modify the effects of plant genetic diversity on arthropods.…”

Section: Discussionmentioning

confidence: 99%

The relative importance of plant intraspecific diversity in structuring arthropod communities: A meta‐analysis

Koricheva

Hayes

2018

Functional Ecology

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Abstract1. Understanding how plant diversity influences higher trophic levels is important for predicting the consequences of global biodiversity loss. While early studies have focused on the effects of plant species richness, more recently a growing number of experiments have explored the effects of plant intraspecific diversity by manipulating the genotypic richness of plant communities.2. By combining 162 estimates of effect size from 60 experimental studies, we examined the effects of plant genotypic richness on arthropods, one of the most diverse and abundant taxa which play a crucial role in many ecosystem processes and services. We have also compared the effects of plant genetic and species diversity on arthropods when both were manipulated within the same study.3. Species richness and abundance of most trophic groups of arthropods were higher in genetically diverse plant stands. Interestingly, the effects of plant genetic diversity on natural enemies of herbivores were stronger than the effects of plant genetic diversity on herbivores, suggesting that plant genetic diversity effects on predators might be driven by mechanisms independent of herbivores.4. Herbivore and predator abundance increased with plant genetic diversity in studies using wild plants whereas predator abundance was unaffected and herbivore abundance was reduced by crop genetic diversity. Damage by generalist herbivores was reduced by plant genetic diversity whereas damage by specialist herbivores was not affected.5. When the effects of plant genetic and species diversity on arthropods were compared within the same study, the magnitude of plant genetic diversity effects was comparable to that of plant species diversity. 6. Our results suggest that plant genetic diversity has significant effects on the diversity of arthropods across several trophic levels, thus highlighting the importance of maintaining high levels of both plant species and genetic diversity for arthropod conservation. However, the potential of using crop genetic mixtures in agriculture for pest control appears to be limited as even though herbivore abundance was reduced in genetically diverse plots, herbivore damage and predator abundance were not affected by crop genotypic richness. K E Y W O R D Sassociational resistance, biodiversity, community genetics, genetic diversity, herbivory, natural enemies, plant-insect interactions, tritrophic interactionsThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…; Campos‐Navarrete et al . ). It is unknown, however, whether such genetic differences warrant differential niche occupation and resource use among genetic individuals within the same species – a prerequisite for true complementarity effects (Tilman, Isbell & Cowles ).…”

Section: Introductionmentioning

confidence: 97%

“…Recent research has also repeatedly demonstrated that genotypes within the same species are ecologically differentiated (see Whitham et al 2012;Fischer et al 2014), and this diversity has predictable effects on ecological communities (e.g. Wimp et al 2005;Cook-Patton et al 2011;Zytynska et al 2011;Bangert et al 2013;Busby et al 2013;McArt & Thaler 2013;Abdala-Roberts & Mooney 2014;Barton et al 2015;Campos-Navarrete et al 2015). It is unknown, however, whether such genetic differences warrant differential niche occupation and resource use among genetic individuals within the same speciesa prerequisite for true complementarity effects (Tilman, Isbell & Cowles 2014).…”

Section: Introductionmentioning

confidence: 99%

Tree genetics strongly affect forest productivity, but intraspecific diversity–productivity relationships do not

et al. 2016

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Summary Numerous studies have demonstrated biodiversity–productivity relationships in plant communities, and analogous genetic diversity–productivity studies using genotype mixtures of single species may show similar patterns. Alternatively, competing individuals among genotypes within a species are less likely to exhibit resource‐use complementarity, even when they exhibit large differences in their effects on ecosystem function. In this study, we test the impact of genotype diversity and genetic identity on ecosystem function using an ecosystem‐scale common garden experiment. Distinct tree genotypes were collected across the entire natural range of the riparian tree Populus fremontii in the USA, and grown in 1–16 genotype combination forest stands. Due to the warm climate and irrigation of the planting location along the Colorado River (AZ, USA), mature forest physiognomy with trees up to 19 m tall was achieved in just five years. Several key patterns emerged: (i) genotype richness did not predict forest productivity, suggesting a lack of net biodiversity effects; (ii) we found differences among genotype monoculture stands comparable to differences in average productivity across all forest biomes on Earth; (iii) productivity was predicted based on genetic marker similarity in trees; (iv) genetic‐based differences in leaf phenology (early leaf‐on and late leaf‐fall timing) were correlated with >80% of the variation in tree and forest productivity irrespective of home‐site conditions. Large differences in productivity among genotypes can result in dramatic differences in forest productivity without resulting in diversity–productivity relationships that are present in species‐scale biodiversity studies.

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Effects of Tree Genotypic Diversity and Species Diversity on the Arthropod Community Associated with Big‐leaf Mahogany

Cited by 25 publications

References 34 publications

Effects of tree species diversity on a community of weaver spiders in a tropical forest plantation

Effects of tree species diversity on a community of weaver spiders in a tropical forest plantation

The relative importance of plant intraspecific diversity in structuring arthropod communities: A meta‐analysis

Tree genetics strongly affect forest productivity, but intraspecific diversity–productivity relationships do not

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