Characterisation of larval habitats, species composition and factors associated with the seasonal abundance of mosquito fauna in Gezira, Sudan

The Species Composition and Seasonal Dynamics of Thrips (Thysanoptera) Populations on Maize (Zea MaysL.) in Southeastern PolandThrips species composition and seasonal abundance was studied on maize crops during two seasons (2006-2007), in southeastern Poland. Altogether 21 species have been identified, among themFrankliniella tenuicornis(Uzel 1895) andHaplothrips aculeatus(Fabricius 1803) which are a graminicolous species and were eudominants, comprising 96.8% in 2006 and 82.0% in 2007 of all collected specimens. Other species occurred only in low numbers. The frequent and numerous presence ofF. tenuicornisspecies in their immature stages in the samples, confirmed the role of the maize plant as the host.H. aculeatusprobably chose maize as a food source and substitute plant for breeding.

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Questing ixodid ticks on the vegetation of sable antelope and multi-herbivore enclosures in Thabazimbi

Journal of the South African Veterinary Association ◽

10.4102/jsava.v86i1.1243 ◽

2015 ◽

Vol 86 (1) ◽

Cited By ~ 2

Author(s):

André C. Uys ◽

Ivan G. Horak ◽

Alan Harrison

Keyword(s):

Species Composition ◽

Ixodid Tick ◽

Tick Control ◽

Ixodid Ticks ◽

Seasonal Abundance ◽

First Year ◽

Potential Vector ◽

The Face ◽

Tick Borne Disease ◽

Grassland Habitats

This survey of ixodid ticks was the first to compare the species composition and population dynamics of free-living ticks in intensive, sable antelope breeding enclosures, now commonplace in commercial wildlife ranching in South Africa, with those of multi-herbivore enclosures. The species composition, abundance and seasonal abundance of questing ixodid ticks on the vegetation in intensive breeding enclosures for sable antelope (Hippotragus niger), on which strategic tick control is practised, were compared with those of ticks in a multi-species herbivore enclosure surrounding the breeding enclosures in which no tick control is practised. A total of eight ixodid tick species were collected by drag-sampling the woodland and grassland habitats in each enclosure type monthly from July 2011 to July 2013. Rhipicephalus decoloratus, a potential vector of fatal tick-borne disease in sable antelopes, was the most abundant, accounting for 65.4% of the total number of ticks collected in the sable enclosures, whilst representing only 25.4% of number of ticks collected in the multi-species herbivore enclosure. Rhipicephalus decoloratus and R. evertsi evertsi were more abundant than R. appendiculatus (both p < 0.05) and Amblyomma hebraeum (p < 0.001 and p < 0.01, respectively). Rhipicephalus decoloratus larvae were collected throughout the year, with peak collections in November 2012 and October to December 2013 in the sable enclosures; and in April/May 2012 and February/April 2013 in the multi-species herbivore enclosure. More R. decoloratus were recovered in the second year than in the first year in the grassland habitat of the sable enclosures (V = 7.0, p < 0.05) possibly as a result of acaricide resistance. The apparent temporal over-abundance of R. decoloratus in sable antelope breeding enclosures, in the face of strategic tick control, is of concern and requires further investigation.

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Adult caddisflies (Trichoptera) attracted to artificial lights in the middle reaches of the Shinano River from 2005 to 2007

Zoosymposia ◽

10.11646/zoosymposia.5.1.12 ◽

2011 ◽

Vol 5 (1) ◽

pp. 143-146 ◽

Cited By ~ 2

Author(s):

KIMIO HIRABAYASHI ◽

GORO KIMURA ◽

EISO INOUE

Keyword(s):

Species Composition ◽

Air Temperature ◽

Large Scale ◽

Abundant Species ◽

The Other ◽

Seasonal Abundance ◽

Other Hand ◽

The Mean ◽

Summer Flood

The species composition and abundance of adult caddisflies attracted to the illuminated showcase of a vending machine set along the middle reaches of the Shinano River were investigated every Sunday night from April to November in 2005 to 2007. A total of 1,405 adult caddisflies was collected during the investigation periods. We identified a total of 13 species belonging to 11 genera of 8 families. The most abundant species was Psychomyia acutipennis (Ulmer 1908) each year. Psychomyia acutipennis adults were collected from mid-May to the beginning of October (the range of mean air temperature was 13.8 to 27.7°C), with its seasonal abundance divided into several peaks, i.e., the end of May, the beginning of June, and the end of August to the beginning of September in both 2006 and 2007. On the other hand, in 2005 when there was no large-scale summer flood and there were no marked abundance peaks. The present study suggests that the mean air temperature and summer floods impacted the seasonal abundance of P. acutipennis adults.

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Species Composition and Seasonal Abundance of Stink Bugs (Hemiptera: Pentatomidae) in Louisiana Soybean

Environmental Entomology ◽

10.1603/en11135 ◽

2013 ◽

Vol 42 (4) ◽

pp. 648-657 ◽

Cited By ~ 31

Author(s):

J. H. Temple ◽

J. A. Davis ◽

S. Micinski ◽

J. T. Hardke ◽

P. Price ◽

...

Keyword(s):

Species Composition ◽

Seasonal Abundance ◽

Stink Bugs

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Species composition and seasonal abundance of Chaetognatha in the subtropical coastal waters of Hong Kong

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2007.01.011 ◽

2007 ◽

Vol 73 (1-2) ◽

pp. 290-298 ◽

Cited By ~ 9

Author(s):

P. Tse ◽

S.Y. Hui ◽

C.K. Wong

Keyword(s):

Hong Kong ◽

Species Composition ◽

Coastal Waters ◽

Seasonal Abundance

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Anopheles species composition and some climatic factors that influence their survival and population abundance in Anambra East LGA, Anambra State, Nigeria

Nigerian Journal of Parasitology ◽

10.4314/njpar.v41i2.17 ◽

2020 ◽

Vol 41 (2) ◽

Author(s):

C.M Egbuche ◽

A.E Onyido ◽

P.U Umeanaeto ◽

E.N Nwankwo ◽

I.F Omah ◽

...

Keyword(s):

Relative Humidity ◽

Species Composition ◽

Climatic Factors ◽

Seasonal Abundance ◽

Human Landing Catch ◽

Morphological Identification ◽

Climatic Data ◽

Anopheles Species ◽

Anambra State ◽

Anopheles Mosquitoes

Malaria parasites are transmitted in nature through the bites of female Anopheles mosquitoes. However, the vector distribution varies in time and space. This study aimed to determine the species composition, abundance and climatic factors influencing Anopheles mosquitoes in Anambra East Local Government Area of Anambra State, Nigeria from October 2016 to September 2017. Adult Anopheles mosquitoes were collected from indoor and outdoor locations using Pyrethrum Knockdown Collection (PKC) and Human Landing Catch (HLC) Methods respectively. Anopheles mosquito larvae were collected using dipping method. Morphological identification of Anopheles species was carried out using standard identification keys. Climatic data was obtained from Nigerian Meteorological Agency Office in Anambra State. A total of 8181 female Anopheles mosquitoes which comprised 4127 (50.4%) larvae and 4054 (49.6%) adults were collected (P > 0.05) in the study. Four Anopheles species: An. gambiae s. l (70.1%), An. funestus group (18.2%), An. moucheti (6.3%) and An. nili (5.4%) were identified (P < 0.05). In the study area, 2608 (31.9%), 3025 (37.0%) and 2548 (31.1%) Anopheles mosquitoes were collected from Aguleri, Igbariam and Nsugbe respectively; with 100% species overlap. In each selected selected town, the Simpson’s index of diversity was ~2 and Shannon-wiener diversity was ~1. Only An. gambiaes l showed varied seasonal abundance with wet season contributing 67.9% and dry season 32.1% of the overall An. gambiaes. l collection (P < 0.05). The correlation between rainfall and An. gambiae s. l. abundance was significantly strong (r = 0.66; P < 0.05). No significant correlation was found between Anopheles species abundance and temperature as well as relative humidity. The study revealed the preponderance of four Anopheles species: An. gambiae s. l., An. funestus, An. moucheti and An. nili; and rainfall is the only climatic factor that causes temporal change in the abundance of one of the species, An. gambiaes. l. in the study area. Keywords: Anopheles mosquitoes, abundance, temperature, rainfall, relative humidity

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