1
|
Fortuna TM, Le Gall P, Mezdour S, Calatayud PA. Impact of invasive insects on native insect communities. CURRENT OPINION IN INSECT SCIENCE 2022; 51:100904. [PMID: 35304314 DOI: 10.1016/j.cois.2022.100904] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
Several biophysical factors are leading to the loss of biodiversity, among them the dominance of exotic invasive species on native communities is important. Their dominance can lead to changes in the structure of insect communities, by competing and displacing native species to other crops or habitats. These changes can impact the herbivore's natural enemies in invaded areas by diverging them from suitable herbivores and altering their biological control process. The development of edible insects and derived products at an industrial scale can also have an impact on the local fauna by the risks of spillover and accidental release in nature. Several area-wide integrated pest management programs are also using the sterile insect technique to control insect pests and disease' vectors. This technique is becoming largely used; however, its application as 'non-intrusive to the environment' is controversial particularly when eradication is concerning species that are at the basis of food webs.
Collapse
Affiliation(s)
- Taiadjana M Fortuna
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France.
| | - Philippe Le Gall
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France
| | | | - Paul-André Calatayud
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France; International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| |
Collapse
|
2
|
de Beer CJ, Dicko AH, Ntshangase J, Moyaba P, Taioe MO, Mulandane FC, Neves L, Mdluli S, Guerrini L, Bouyer J, Vreysen MJB, Venter GJ. A distribution model for Glossina brevipalpis and Glossina austeni in Southern Mozambique, Eswatini and South Africa for enhanced area-wide integrated pest management approaches. PLoS Negl Trop Dis 2021; 15:e0009989. [PMID: 34843478 PMCID: PMC8659649 DOI: 10.1371/journal.pntd.0009989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 12/09/2021] [Accepted: 11/09/2021] [Indexed: 11/30/2022] Open
Abstract
Background Glossina austeni and Glossina brevipalpis (Diptera: Glossinidae) are the sole cyclical vectors of African trypanosomes in South Africa, Eswatini and southern Mozambique. These populations represent the southernmost distribution of tsetse flies on the African continent. Accurate knowledge of infested areas is a prerequisite to develop and implement efficient and cost-effective control strategies, and distribution models may reduce large-scale, extensive entomological surveys that are time consuming and expensive. The objective was to develop a MaxEnt species distribution model and habitat suitability maps for the southern tsetse belt of South Africa, Eswatini and southern Mozambique. Methodology/Principal findings The present study used existing entomological survey data of G. austeni and G. brevipalpis to develop a MaxEnt species distribution model and habitat suitability maps. Distribution models and a checkerboard analysis indicated an overlapping presence of the two species and the most suitable habitat for both species were protected areas and the coastal strip in KwaZulu-Natal Province, South Africa and Maputo Province, Mozambique. The predicted presence extents, to a small degree, into communal farming areas adjacent to the protected areas and coastline, especially in the Matutuíne District of Mozambique. The quality of the MaxEnt model was assessed using an independent data set and indicated good performance with high predictive power (AUC > 0.80 for both species). Conclusions/Significance The models indicated that cattle density, land surface temperature and protected areas, in relation with vegetation are the main factors contributing to the distribution of the two tsetse species in the area. Changes in the climate, agricultural practices and land-use have had a significant and rapid impact on tsetse abundance in the area. The model predicted low habitat suitability in the Gaza and Inhambane Provinces of Mozambique, i.e., the area north of the Matutuíne District. This might indicate that the southern tsetse population is isolated from the main tsetse belt in the north of Mozambique. The updated distribution models will be useful for planning tsetse and trypanosomosis interventions in the area. The two tsetse species transmitting nagana in South Africa, Eswatini and southern Mozambique represent the southernmost distribution of this genus on the African continent. Distribution models were developed to support tsetse control. These models indicated that the main factors contributing to tsetse distribution in the area are the presence of host animals, variation in climate and vegetation mostly observed in protected areas, agricultural practises and land-use also had a significant and rapid impact on tsetse abundance in the area. Application of the model to areas north of the southern distribution predict a low presence of suitable habitats in the Gaza and Inhambane Provinces of Mozambique, thereby indicating that this southern population is geographically isolated from the main tsetse belt starting in the north of Mozambique.
Collapse
Affiliation(s)
- Chantel J. de Beer
- Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Insect Pest Control Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
- Epidemiology, Parasites & Vectors, Agricultural Research Council—Onderstepoort Veterinary Research (ARC-OVR), Onderstepoort, South Africa
- * E-mail:
| | | | - Jerome Ntshangase
- Epidemiology, Parasites & Vectors, Agricultural Research Council—Onderstepoort Veterinary Research (ARC-OVR), Onderstepoort, South Africa
| | - Percy Moyaba
- Epidemiology, Parasites & Vectors, Agricultural Research Council—Onderstepoort Veterinary Research (ARC-OVR), Onderstepoort, South Africa
| | - Moeti O. Taioe
- Epidemiology, Parasites & Vectors, Agricultural Research Council—Onderstepoort Veterinary Research (ARC-OVR), Onderstepoort, South Africa
| | | | - Luis Neves
- Biotechnology Centre, Eduardo Mondlane University, Maputo, Mozambique
- Vectors and Vector Borne Diseases Research Program, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Sihle Mdluli
- Epidemiology Unit, Department of Veterinary Services, Manzini, Eswatini
| | - Laure Guerrini
- UMR ASTRE (Animal, Health, Territories, Risks and Ecosystems), CIRAD, INRA, Université de Montpellier, Montpellier, France
- RP-PCP, UMR ASTRE, Harare, Zimbabwe
| | - Jérémy Bouyer
- Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Insect Pest Control Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
- UMR ASTRE (Animal, Health, Territories, Risks and Ecosystems), CIRAD, INRA, Université de Montpellier, Montpellier, France
- UMR INTERTRYP, Univ Montpellier, CIRAD, IRD, Montpellier, France
| | - Marc J. B. Vreysen
- Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Insect Pest Control Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Gert J. Venter
- Epidemiology, Parasites & Vectors, Agricultural Research Council—Onderstepoort Veterinary Research (ARC-OVR), Onderstepoort, South Africa
- Vectors and Vector Borne Diseases Research Program, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| |
Collapse
|
3
|
Haines LR, Vale GA, Barreaux AMG, Ellstrand NC, Hargrove JW, English S. Big Baby, Little Mother: Tsetse Flies Are Exceptions to the Juvenile Small Size Principle. Bioessays 2020; 42:e2000049. [DOI: 10.1002/bies.202000049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 08/20/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Lee R. Haines
- Vector Biology Department Liverpool School of Tropical Medicine Liverpool L3 5QA UK
| | - Glyn A. Vale
- DSI‐NRF Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA) University of Stellenbosch Stellenbosch 7602 South Africa
- Natural Resources Institute University of Greenwich Chatham ME4 4TB UK
| | | | - Norman C. Ellstrand
- Department of Botany and Plant Sciences University of California Riverside CA 92521 USA
| | - John W. Hargrove
- DSI‐NRF Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA) University of Stellenbosch Stellenbosch 7602 South Africa
| | - Sinead English
- School of Biological Sciences University of Bristol Bristol BS8 1TQ UK
| |
Collapse
|
4
|
Vale G, Hargrove J. Comment on Bioscience Forum article by Bouyer and colleagues (2018). Bioscience 2019. [DOI: 10.1093/biosci/biz035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Glyn Vale
- SACEMA, at the University of Stellenbosch, South Africa
| | - John Hargrove
- SACEMA, at the University of Stellenbosch, South Africa
| |
Collapse
|
5
|
Alderton S, Macleod ET, Anderson NE, Palmer G, Machila N, Simuunza M, Welburn SC, Atkinson PM. An agent-based model of tsetse fly response to seasonal climatic drivers: Assessing the impact on sleeping sickness transmission rates. PLoS Negl Trop Dis 2018; 12:e0006188. [PMID: 29425200 PMCID: PMC5806852 DOI: 10.1371/journal.pntd.0006188] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 12/22/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND This paper presents the development of an agent-based model (ABM) to incorporate climatic drivers which affect tsetse fly (G. m. morsitans) population dynamics, and ultimately disease transmission. The model was used to gain a greater understanding of how tsetse populations fluctuate seasonally, and investigate any response observed in Trypanosoma brucei rhodesiense human African trypanosomiasis (rHAT) disease transmission, with a view to gaining a greater understanding of disease dynamics. Such an understanding is essential for the development of appropriate, well-targeted mitigation strategies in the future. METHODS The ABM was developed to model rHAT incidence at a fine spatial scale along a 75 km transect in the Luangwa Valley, Zambia. The model incorporates climatic factors that affect pupal mortality, pupal development, birth rate, and death rate. In combination with fine scale demographic data such as ethnicity, age and gender for the human population in the region, as well as an animal census and a sample of daily routines, we create a detailed, plausible simulation model to explore tsetse population and disease transmission dynamics. RESULTS The seasonally-driven model suggests that the number of infections reported annually in the simulation is likely to be a reasonable representation of reality, taking into account the high levels of under-detection observed. Similar infection rates were observed in human (0.355 per 1000 person-years (SE = 0.013)), and cattle (0.281 per 1000 cattle-years (SE = 0.025)) populations, likely due to the sparsity of cattle close to the tsetse interface. The model suggests that immigrant tribes and school children are at greatest risk of infection, a result that derives from the bottom-up nature of the ABM and conditioning on multiple constraints. This result could not be inferred using alternative population-level modelling approaches. CONCLUSIONS In producing a model which models the tsetse population at a very fine resolution, we were able to analyse and evaluate specific elements of the output, such as pupal development and the progression of the teneral population, allowing the development of our understanding of the tsetse population as a whole. This is an important step in the production of a more accurate transmission model for rHAT which can, in turn, help us to gain a greater understanding of the transmission system as a whole.
Collapse
Affiliation(s)
- Simon Alderton
- Geography and Environment, Faculty of Social and Human Sciences, University of Southampton, Southampton, United Kingdom
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
- Centre for Health Informatics, Computing and Statistics (CHICAS), Lancaster Medical School, Lancaster University, Lancaster, United Kingdom
- * E-mail:
| | - Ewan T. Macleod
- Division of Infection and Pathway Medicine, Biomedical Sciences, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, United Kingdom
| | - Neil E. Anderson
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Roslin, United Kingdom
| | - Gwen Palmer
- Independent Researcher, Leyland, Lancashire, United Kingdom
| | - Noreen Machila
- Division of Infection and Pathway Medicine, Biomedical Sciences, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, United Kingdom
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Martin Simuunza
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Susan C. Welburn
- Division of Infection and Pathway Medicine, Biomedical Sciences, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, United Kingdom
| | - Peter M. Atkinson
- Geography and Environment, Faculty of Social and Human Sciences, University of Southampton, Southampton, United Kingdom
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
- Centre for Health Informatics, Computing and Statistics (CHICAS), Lancaster Medical School, Lancaster University, Lancaster, United Kingdom
- School of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Northern Ireland, United Kingdom
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|