The potential impact of climate change on non-target risks from imported generalist natural enemies and on biological control

Nechols, James R.

doi:10.1007/s10526-020-10032-z

Cited by 9 publications

(9 citation statements)

References 40 publications

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“…It was also projected that as climate change intensifies, the suitable areas for both species in Taiwan will contract, and the climate may become less suitable for them in the future. To address the challenges posed by climate change, future work could focus on long-term monitoring at the community level, 15 utilizing accurate and rapid identification. 45 The findings of this study can serve as a reference for developing future CBC programs worldwide, taking into consideration to meet the challenges of climate change.…”

Section: Discussionmentioning

confidence: 99%

Reassessing the presence of alien predatory mites and their prospects in the face of future climate change

Liao

Chiu

Kuo

2023

Pest Management Science

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BACKGROUNDClimate change poses uncertainties in the effectiveness of classical biological control (CBC), and there is a lack of information on the establishment of natural enemy populations under present and future climatic conditions. The objective is to explore current traces of two alien predators (Neoseiulus californicus and N. fallacis; introduced for the CBC program in the 1980s) and their future expansion under climate change in Taiwan.RESULTSThe results indicated that N. californicus was present in alpine orchards (e.g., Lishan and Meifeng) but N. fallacis was not found. Under current climate condition, most areas in Taiwan were deemed highly suitable for N. californicus, but not for N. fallacis, which may explain the outcomes of the CBC program. With intensifying climate change, the ranges of both species are projected to contract to varying extents in Taiwan but expand in some countries.CONCLUSIONThe findings from this study can provide insights for evaluating and developing future CBC programs worldwide, and can help predict the implications of climate change on biological control efforts.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Reassessing the presence of alien predatory mites and their prospects in the face of future climate change

Liao

Chiu

Kuo

2023

Pest Management Science

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“…Climate change is expected to alter the strength and stability of biological control e.g., by affecting BCA fitness, geographical distributions and phenological mismatches (Furlong and Zalucki, 2017;Nechols, 2021). Mountain ecosystems provide a unique and prescient opportunity to view and examine the consequences of a warmer future, but mountain ecology science has made scant progress in gauging community assembly dynamics, defining explanatory models or assessing ecosystem functioning (Dangles et al, 2008;Peters et al, 2016;Steinbauer et al, 2018).…”

Section: Prisms For Gauging Impacts Of Global Warmingmentioning

confidence: 99%

“…To complicate matters further, many of the above patterns are plastic and adaptive over time (Le Lann et al, 2021). Hence, anticipating the above (direct, indirect) impacts is challenging and existing studies only detect few consistencies across crop × pest systems and farming contexts (Nechols, 2021). Evidently, few observations over space and time make it impossible to make wide-ranging predictions regarding the fate of biological control.…”

Section: Prisms For Gauging Impacts Of Global Warmingmentioning

confidence: 99%

Island and Mountain Ecosystems as Testbeds for Biological Control in the Anthropocene

et al. 2022

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For centuries, islands and mountains have incited the interest of naturalists, evolutionary biologists and ecologists. Islands have been the cradle for biogeography and speciation theories, while mountain ranges have informed how population adaptation to thermal floors shapes the distribution of species globally. Islands of varying size and mountains’ altitudinal ranges constitute unique “natural laboratories” where one can investigate the effects of species loss or global warming on ecosystem service delivery. Although invertebrate pollination or seed dispersal processes are steadily being examined, biological control research is lagging. While observations of a wider niche breadth among insect pollinators in small (i.e., species-poor) islands or at high (i.e., colder) altitudes likely also hold for biological control agents, such remains to be examined. In this Perspective piece, we draw on published datasets to show that island size alone does not explain biological control outcomes. Instead, one needs to account for species’ functional traits, habitat heterogeneity, host community make-up, phenology, site history or even anthropogenic forces. Meanwhile, data from mountain ranges show how parasitism rates of Noctuid moths and Tephritid fruit flies exhibit species- and context-dependent shifts with altitude. Nevertheless, future empirical work in mountain settings could clarify the thermal niche space of individual natural enemy taxa and overall thermal resilience of biological control. We further discuss how global databases can be screened, while ecological theories can be tested, and simulation models defined based upon observational or manipulative assays in either system. Doing so can yield unprecedented insights into the fate of biological control in the Anthropocene and inform ways to reinforce this vital ecosystem service under global environmental change scenarios.

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“…In recent decades, a variety of human and animal diseases transmitted by mosquitoes and ticks ( Zellner and Huntley, 2019 ; Gao et al., 2020 ), together with notorious crop pathogen outbreaks vectored by destructive agricultural pests such as psyllids, thrips, and whiteflies ( Navas-Castillo et al., 2011 ; He et al., 2020 ; Moreno et al., 2021 ), have increased the demand for advanced vector control technologies and strategies. Due to the environmental risks of excessive use of chemical pesticides and vector insecticidal resistance, sympatric natural enemies of vectors, including parasitoids, predatory arthropods, and entomopathogenic microbes, were explored in their distribution areas at cross-latitudinal scales ( Garcia et al., 2020 ; Nechols, 2021 ), some of which have been newly discovered and developed as effective, safe, and economically acceptable alternatives to chemical control ( Wang et al., 2019 ; Islam et al., 2021 ). Compared to other biocontrol agents, features, such as easy multiplication, host specificity, and high survival in varied environments, of natural and gene-engineered entomopathogenic fungi are more favorably adopted to supplement the arsenal of biological control to manage medical and agricultural insect vectors ( Leger and Wang, 2010 ; Fang et al., 2012 ; Javed et al., 2019 ; Lovett et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Discovery of entomopathogenic fungi across geographical regions in southern China on pine sawyer beetle Monochamus alternatus and implication for multi-pathogen vectoring potential of this beetle

Shengxin

Wu²,

Wang

et al. 2022

Front. Plant Sci.

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Entomopathogen-based biocontrol is crucial for blocking the transmission of vector-borne diseases; however, few cross-latitudinal investigations of entomopathogens have been reported for vectors transmitting woody plant diseases in forest ecosystems. The pine sawyer beetle Monochamus alternatus is an important wood borer and a major vector transmitting pine wilt disease, facilitating invasion of the pinewood nematode Bursaphelenchus xylophilus (PWN) in China. Due to the limited geographical breadth of sampling regions, species diversity of fungal associates (especially entomopathogenic fungi) on M. alternatus adults and their potential ecological functions have been markedly underestimated. In this study, through traditional fungal isolation with morphological and molecular identification, 640 fungal strains (affiliated with 15 genera and 39 species) were isolated from 81 beetle cadavers covered by mycelia or those symptomatically alive across five regional populations of this pest in southern China. Multivariate analyses revealed significant differences in the fungal community composition among geographical populations of M. alternatus, presenting regionalized characteristics, whereas no significant differences were found in fungal composition between beetle genders or among body positions. Four region-representative fungi, namely, Lecanicillium attenuatum (Zhejiang), Aspergillus austwickii (Sichuan), Scopulariopsis alboflavescens (Fujian), and A. ruber (Guangxi), as well as the three fungal species Beauveria bassiana, Penicillium citrinum, and Trichoderma dorotheae, showed significantly stronger entomopathogenic activities than other fungi. Additionally, insect-parasitic entomopathogenic fungi (A. austwickii, B. bassiana, L. attenuatum, and S. alboflavescens) exhibited less to no obvious phytopathogenic activities on the host pine Pinus massoniana, whereas P. citrinum, Purpureocillium lilacinum, and certain species of Fusarium spp.—isolated from M. alternatus body surfaces—exhibited remarkably higher phytopathogenicity. Our results provide a broader view of the entomopathogenic fungal community on the vector beetle M. alternatus, some of which are reported for the first time on Monochamus spp. in China. Moreover, this beetle might be more highly-risk in pine forests than previously considered, as a potential multi-pathogen vector of both PWN and phytopathogenic fungi.

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The potential impact of climate change on non-target risks from imported generalist natural enemies and on biological control

Cited by 9 publications

References 40 publications

Reassessing the presence of alien predatory mites and their prospects in the face of future climate change

Reassessing the presence of alien predatory mites and their prospects in the face of future climate change

Island and Mountain Ecosystems as Testbeds for Biological Control in the Anthropocene

Discovery of entomopathogenic fungi across geographical regions in southern China on pine sawyer beetle Monochamus alternatus and implication for multi-pathogen vectoring potential of this beetle

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