From species distributions to climate change adaptation: Knowledge gaps in managing invertebrate pests in broad-acre grain crops

Macfadyen, Sarina; McDonald, G.; Hill, Matthew P.

doi:10.1016/j.agee.2016.08.029

Cited by 68 publications

(57 citation statements)

References 76 publications

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“…Invertebrates are especially sensitive to changing climatic conditions, and their response to temperature, rainfall, relative humidity, and soil moisture is important predictors of successful colonization (Chen, Xia, Fu, Wu, & Xue, ; Klapwijk, Ayres, Battisti, & Larsson, ; Macfadyen, McDonnald, & Hill,). As more information becames available, climate models are becoming increasingly more valuable to assist in the prediction of habitat suitability for invasive species.…”

Section: Determinants Of Invasivenessmentioning

confidence: 99%

“…Climate change like increased temperature will result in accelerated development and increased voltinism for many pest species (Ziter, Robinson, & Newman, ) and may mean species become active earlier in the season (Harrington, Fleming, & Woiwod,; Macfadyen et al, ). Close synchrony of insects with their host plants to successfully complete their lifecycles is hampering invasion to new areas.…”

Section: Determinants Of Invasivenessmentioning

confidence: 99%

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Defining biotechnological solutions for insect control in sub‐Saharan Africa

Botha

Kunert

Malinga

et al. 2019

Food and Energy Security

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Africa is burdened by food insecurity with nearly a billion people suffering from starvation, undernutrition, and malnutrition. Climate change prediction models forecast changes in rainfall patterns and rising temperature regimes, with impacts particularly on Southern and East Africa. These predictions are especially concerning for the production of major food crops, such as maize, sorghum, millet, and groundnut, because median temperature increases are associated with increased pest pressure and changes in migratory patterns. These factors will result in significantly more pest invasions and an increased need for innovative insect management practices. This review focuses on pest control strategies, highlighting important examples, their economic impact, and new alternative pest control strategies. African policymakers remain hesitant to move forward with establishing biosafety laws and commercializing GM crops, and it is often difficult to implement regulatory measures in smallholder agriculture to increase efficacy.

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Section: Determinants Of Invasivenessmentioning

confidence: 99%

Section: Determinants Of Invasivenessmentioning

confidence: 99%

Defining biotechnological solutions for insect control in sub‐Saharan Africa

Botha

Kunert

Malinga

et al. 2019

Food and Energy Security

View full text Add to dashboard Cite

show abstract

“…; Macfadyen et al . ). The impact of global warming on invertebrates, especially arthropods, is still poorly understood (Kiritani ; Johnson & Jones ), with a small number of these groups having been evaluated (e.g.…”

Section: Introductionmentioning

confidence: 97%

“…Among ectothermic organisms, many invertebrates are especially sensitive to climatic conditions, and parameters such as temperature, rainfall, relative humidity and soil moisture have all proved useful for predicting important demographic processes such as decreases in population size (e.g. Klapwijk et al 2012;Chen et al 2014;Macfadyen et al 2018). The impact of global warming on invertebrates, especially arthropods, is still poorly understood (Kiritani 2006;Johnson & Jones 2016), with a small number of these groups having been evaluated (e.g.…”

Section: Introductionmentioning

confidence: 99%

Potential distribution patterns of scorpions in north‐eastern Brazil under scenarios of future climate change

et al. 2019

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Current predictions about the responses of species to climate change strongly rely on projecting altered environmental conditions on their distributions. In this study, we investigated the effects of future climate change scenarios on the potential distribution of 10 species of scorpions in north‐eastern Brazil in the context of their degree of specialisation to closed (Atlantic and Amazon Forests) and open (Caatinga and Cerrado) habitats. Scorpion species were classified as habitat specialists or generalists according to the IndVal index, and present and future species distribution models were prepared using minimum volume ellipsoids. According to IndVal, four species were classified as closed‐forest specialists (Ananteris mauryi, Tityus brazilae, Tityus pusillus and Tityus neglectus), four as open‐forest specialists (Jaguajir agamemnon, Jaguajir rochae, Physoctonus debilis and Bothriurus rochai), and two as generalists (Tityus stigmurus and Bothriurus asper). All species presented a drastic reduction in potential distribution, ranging from 44% to 72%, when compared with their current distribution. In addition, we found a reduction in scorpion species richness under future climate change scenarios. This finding has implications for scorpion conservation. Further, the results show that climate change may impact the composition of scorpion assemblages in north‐eastern Brazil, revealing important implications for human–scorpion interactions.

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“…Temperature increase has been predicted to elevate by 3.4 o C by the end of twenty-first century (Barzman et al, 2015). With all these predictions, vegetable production in dryland areas will continue to be vulnerable to these temperature effects (Macfadyen et al, 2016). Policy makers can be able to make use of these predictions to make suitable policies for farmers on management strategies of mitigation and adaptation to pests impacting crop production (Sharma & Prabhakar, 2014).…”

Section: Impact Of Temperature On Insects and Diseasementioning

confidence: 99%

Constraints to Vegetable Production Resulting from Pest and Diseases Induced by Climate Change and Globalization: A Review

Phophi¹,

Mafongoya²

2017

JAS

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Vegetable production worldwide is constrained by pests and diseases which effects are exacerbated by climate change and variability. Greenhouse gas emissions are also increasing due to poor agricultural practices and other human activities. This will continue to have a negative impact on the prevalence of insect pests and diseases. This review focuses on the climatic factors that impact on insect pests and diseases of vegetable crops. High atmospheric temperatures and elevated carbon dioxide increases pest development, survival of pests and distribution of pest to new areas. The distribution of insect pests and diseases are not due to climate changes only but are also a result of globalisation and poor biosecurity measures at country borders. There is limited information on the distribution of pests and diseases due to globalisation in African countries. New exotic pests will continue to be introduced to countries if biosecurity measures are not improved. Future research must focus on how to manage emerging pests and diseases influenced by high temperatures and carbon dioxide and other climatic conditions which influence pest severity under smallholder farmers in the southern African regions.

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From species distributions to climate change adaptation: Knowledge gaps in managing invertebrate pests in broad-acre grain crops

Cited by 68 publications

References 76 publications

Defining biotechnological solutions for insect control in sub‐Saharan Africa

Defining biotechnological solutions for insect control in sub‐Saharan Africa

Potential distribution patterns of scorpions in north‐eastern Brazil under scenarios of future climate change

Constraints to Vegetable Production Resulting from Pest and Diseases Induced by Climate Change and Globalization: A Review

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