Seasonal Dynamics and Spatial Distribution of Aedes albopictus (Diptera: Culicidae) in a Temperate Region in Europe, Southern Portugal

Osório, Hugo Costa; Rocha, Jorge; Roquette, Rita; Guerreiro, Nélia M.; Zé-Zé, Líbia; Amaro, Fátima; Silva, Manuel; Alves, Maria João

doi:10.3390/ijerph17197083

“…As with most other insects, seasonal Diptera abundance cycles are associated with seasonal changes in temperature, day length, humidity, and other factors. Water levels and humidity regime have an effect on the seasonal activity of species breeding in water (Denlinger, 1980;Bogojevic et al, 2009;Nekrasova et al, 2016;Osório et al, 2020). Many parasitic dipterans depend on the seasonal activity of their hosts, which serve for the development of larvae (Shapiro, 1995;Paur & Gray, 2011).…”

Section: Discussionmentioning

confidence: 99%

Seasonal dynamics of Diptera in individual biotopes in the center of the European part of Russia

Ruchin¹,

Esin²

2021

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In a changing climate, phenological observations are gaining new importance. They can tell what changes are taking place in certain environmental conditions. The studies were conducted in 2019 within the territory of the Republic of Mordovia (the center of the European part of Russia). Beer traps (beer as a bait) were used to collect Diptera. The material was collected in the period from April to October in different forest biotopes (pine forest, lime forest, aspen forest, birch forest and oak forest) and the air temperature was recorded at the same time. In total, more than 14.000 specimens of Diptera were recorded. Overall, 29 families were recorded. The largest number of families was observed for birch (23 families) and pine (24 families) forests, the smallest number – in aspen forest (16 families). The families Muscidae, Drosophilidae, Calliphoridae had the largest number of captured individuals (44.5%, 35.2%, 7.6% of the total number of individuals respectively). The highest number of individuals was captured in oak forest. The dynamics of abundance in all biotopes were similar and were characterized by the same number of declines and rises. The first small significant peak in the number of Diptera occurred in the first half of summer. A slight increase in the number of specimenі occurred in mid-June. In the second half of September, there was a gradual increase in the number and the maximum peak was recorded in mid-October, then there was a decline. The autumn increase in the number of Diptera in all five biotopes exceeded the summer peak by several times. This dynamic was typical for most families. However, species from the family Lonchaeidae had the peak in July. For our better understanding of the changes in the seasonal dynamics of the number of Diptera, long-term observations in different climatic zones are needed.

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“…The annual temporal pattern in the relative abundance of Culicidae closely correlated with dynamics of water level in the Drava and Danube rivers, especially in 1999 and 2004 (Bogojevic et al, 2009). The peak population of Aedes albopictus in Portugal was observed from September to November (Osório et al, 2020). The seasonal activity of 10 Tabanidae species was studied in Turkey.…”

Section: Introductionmentioning

confidence: 87%

Seasonal dynamics of Diptera in individual biotopes in the center of the European part of Russia

Ruchin¹,

Esin²

2021

Biosys. divers.

0

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In a changing climate, phenological observations are gaining new importance. They can tell what changes are taking place in certain environmental conditions. The studies were conducted in 2019 within the territory of the Republic of Mordovia (the center of the European part of Russia). Beer traps (beer as a bait) were used to collect Diptera. The material was collected in the period from April to October in different forest biotopes (pine forest, lime forest, aspen forest, birch forest and oak forest) and the air temperature was recorded at the same time. In total, more than 14.000 specimens of Diptera were recorded. Overall, 29 families were recorded. The largest number of families was observed for birch (23 families) and pine (24 families) forests, the smallest number – in aspen forest (16 families). The families Muscidae, Drosophilidae, Calliphoridae had the largest number of captured individuals (44.5%, 35.2%, 7.6% of the total number of individuals respectively). The highest number of individuals was captured in oak forest. The dynamics of abundance in all biotopes were similar and were characterized by the same number of declines and rises. The first small significant peak in the number of Diptera occurred in the first half of summer. A slight increase in the number of specimenі occurred in mid-June. In the second half of September, there was a gradual increase in the number and the maximum peak was recorded in mid-October, then there was a decline. The autumn increase in the number of Diptera in all five biotopes exceeded the summer peak by several times. This dynamic was typical for most families. However, species from the family Lonchaeidae had the peak in July. For our better understanding of the changes in the seasonal dynamics of the number of Diptera, long-term observations in different climatic zones are needed.

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“…All the GT "entomological thresholds" and all except Ong et al [59] of GMs primarily relied on climate variables while none of the MTs reported the use of climate data. Thirty percent of all inclusions (30% [26/87]) [18][19][20]27,29,[32][33][34]37,39,42,[45][46][47] In addition, two inclusions discussed the use of a special index of several variables [63,97 (MT)], and another one used the number of dead birds [62 (MT)]. Geographic location was important in several GMs; Foley and Pecor [50] relied on geo-referencing US military facilities onto published vector and virus habitat suitability maps, while Lowes et al [52][53][54] compartmentalized risk to micro-region resolution in Brazil with environmental variables of biome and altitude.…”

Section: Variables Used In Action Thresholds/model Inputsmentioning

confidence: 99%

“…Two inclusions used yearly data (11.8% [2/17]) [38 (GT); 59 (GM)], one inclusion used only one-time data to generate action thresholds for two city parks (6% [1/17]) [22 (GT)], and there were two inclusions with no clear mention of the data frequency (11.8% [2/17]) [26,43 (GT)]. Inclusions that used climatic variables relied mostly on daily/weekly data (61.5% [16/26]) [18,19,27,33,34,42,[45][46][47]; 48,49,55-58,60 (GM)] over monthly data (38.5% [10/26]) [20,29,32,37,39 (GT); 50-54 (GM)]. Daily/weekly data frequency was the most used (50% [5/10]) [49,[55][56][57]60 (GM)] in GTs and GMs that used human case data.…”

Section: Surveillance and Implementation Characteristicsmentioning

confidence: 99%

A systematic review of published literature on mosquito control action thresholds across the world

Aryaprema

¹

,

Steck

²

,

Peper

³

et al. 2023

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Background Despite the use of numerous methods of control measures, mosquito populations and mosquito-borne diseases are still increasing globally. Evidence-based action thresholds to initiate or intensify control activities have been identified as essential in reducing mosquito populations to required levels at the correct/optimal time. This systematic review was conducted to identify different mosquito control action thresholds existing across the world and associated surveillance and implementation characteristics. Methodology/Principal findings Searches for literature published from 2010 up to 2021 were performed using two search engines, Google Scholar and PubMed Central, according to PRISMA guidelines. A set of inclusion/exclusion criteria were identified and of the 1,485 initial selections, only 87 were included in the final review. Thirty inclusions reported originally generated thresholds. Thirteen inclusions were with statistical models that seemed intended to be continuously utilized to test the exceedance of thresholds in a specific region. There was another set of 44 inclusions that solely mentioned previously generated thresholds. The inclusions with “epidemiological thresholds” outnumbered those with “entomological thresholds”. Most of the inclusions came from Asia and those thresholds were targeted toward Aedes and dengue control. Overall, mosquito counts (adult and larval) and climatic variables (temperature and rainfall) were the most used parameters in thresholds. The associated surveillance and implementation characteristics of the identified thresholds are discussed here. Conclusions/Significance The review identified 87 publications with different mosquito control thresholds developed across the world and published during the last decade. Associated surveillance and implementation characteristics will help organize surveillance systems targeting the development and implementation of action thresholds, as well as direct awareness towards already existing thresholds for those with programs lacking available resources for comprehensive surveillance systems. The findings of the review highlight data gaps and areas of focus to fill in the action threshold compartment of the IVM toolbox.

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Seasonal Dynamics and Spatial Distribution of Aedes albopictus (Diptera: Culicidae) in a Temperate Region in Europe, Southern Portugal

Cited by 9 publications

References 34 publications

Seasonal dynamics of Diptera in individual biotopes in the center of the European part of Russia

Seasonal dynamics of Diptera in individual biotopes in the center of the European part of Russia

Seasonal dynamics of Diptera in individual biotopes in the center of the European part of Russia

A systematic review of published literature on mosquito control action thresholds across the world

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