scholarly journals Variability of Nocturnal Insects In Sant Gadge Baba Amravati University Campus, Amravati

2021 ◽  
pp. 157-193
Author(s):  
Dr. Y. D. Akhare. ◽  
Mohd. Khadim ◽  
H. A. Patharikar
Keyword(s):  
Species Diversity ◽  
Light Source ◽  
Light Trapping ◽  
Natural Habitat ◽  
Light Trap ◽  
Anthropogenic Activity ◽  
University Campus ◽  
Trapping Methods ◽  
White Sheet

The insects are known to be the most successful and diverse animals on earth. Variability of nocturnal insects in Sant Gadge Baba Amravati University campus was recorded by using the light trap method for collection of insect. This trap consists of the light source and a big white sheet. The sheet was hung on the pillars. Insects were attracted to the light source settled on the sheet. The second sheet was also spread on the ground to catch the insect that fall. Collected insect in the killing bottle by beating tray aspirator, and forceps. Lightning hours were set for seven hours. During this study, total 6 orders of species of insects are found are Coleoptera, Lepidoptera, Orthoptera, Hemiptera, Diptera, and Hymenoptera, insects belonging to different families was collected in university campus by using light trapping methods respectively and moderate species diversity were observed. The abundance of species of most night insect in the study area maybe due to the loss of their natural habitat. This may be the virtue of anthropogenic activity such as fragmentation of habitat, replacement of the habitat for humane purpose or may be other due reasons that eventually lead to the decline of species diversity.

scholarly journals Relative occurrence of the family Kalotermitidae (Isoptera) under different termite sampling methods

Sociobiology ◽  
2018 ◽  
Vol 65 (1) ◽  
pp. 88 ◽  
Author(s):  
Rudolf H Scheffrahn ◽  
James A Chase ◽  
John R. Mangold ◽  
Henry H Hochmair
Keyword(s):  
Sampling Methods ◽  
Light Trapping ◽  
Light Trap ◽  
Habitat Type ◽  
Geographical Location ◽  
Field Studies ◽  
Survey Method ◽  
Termite Species ◽  
Expert Survey ◽  
Abundance And Diversity

The termite family Kalotermitidae constitutes a wood-nesting termite family that accounts for about 15% of all extant termite species. In recent decades, field studies have been carried out to assess termite diversity in various wooded habitats and geographic locations. Three sampling methods have been favored expert, transect, and alate light-trap surveys. Expert collecting is not spatially quantifiable but relies on field personnel to recognize and sample termite niches. The transect method aims to standardize and quantify termite abundance and diversity. Light trapping is a passive method for sampling nocturnal alate flights. We compared our expert survey results and results of published sampling methods for their proportional yields of kalotermitid versus non-kalotermitid encounters. Using an odds ratio statistic, we found that worldwide, there is about a 50.6-fold greater likelihood of encountering a kalotermitid sample versus a non-kalotermitid using the expert survey method and a 15.3-fold greater likelihood using alate trapping than using the transect method. There is about a 3.3 -fold greater likelihood of collecting a kalotermitid specimen versus a non-kalotermitid sample using the expert survey method than using the alate trap method. Transect studies in which only termite species diversity was reported gave similar low Kalotermitidae yields. We propose that multiple biases in sampling methodology include tools, time constraints, habitat type, geographical location, topographical conditions, and human traits account for the divergent outcomes in sampling the abundance and diversity of Kalotermitidae compared to other termite families.

scholarly journals Potentiality of light source and predator for controlling brown planthopper

2020 ◽  
Vol 30 (3) ◽  
pp. 275-281
Author(s):  
M Sardar ◽  
MR Khatun ◽  
KS Islam ◽  
MT Haque ◽  
G Das
Keyword(s):  
Energy Saving ◽  
Light Source ◽  
Light Trapping ◽  
Brown Planthopper ◽  
Wolf Spider ◽  
Nilaparvata Lugens ◽  
Carabid Beetle ◽  
Maximum Effect ◽  
Light Sources ◽  
Ladybird Beetle

Experiments were conducted at the net house and laboratory of the Entomology Division of Bangladesh Institute of Nuclear Agriculture (BINA) to determine the effectiveness of four light sources for light trapping, and performance of three predators for controlling brown plant hopper, Nilaparvata lugens (Stal.).The light intensity and sources were 30-50 lux (candle light), 80-100 lux (kerosene lamp), 180-200 lux (bulb) and 380-400 lux (energy saving lamp). The predators, ladybird beetle, carabid beetle and wolf spider, Light traps of 380-400 lux from energy saving lamp showed maximum effect in reducing the pest brown planthopper. Other light sources had little effect on brown planthopper. Light source of 30-200 lux reduced only a few brown planthopper. The predator wolf spider, Lycosa pseudoannulata consumed all the prey individuals of Nilaparvata lugens in three days exposure period indicating its high predation potentiality. Performance of ladybird beetle, Micraspis discolor was moderate and the carabid beetle, Ophionea indica was poor in controlling brown planthopper. The findings of these experiments indicate that light trapping with a source of 380-400 lux, predation by Lycosa pseudoannulata are the promising options in reducing brown planthopper population successfully and it could be an important part of IPM that is essential for the sustainable management of this deleterious brown planthopper in rice cultivation. Progressive Agriculture 30 (3): 275-281, 2019

The Mechanisms of the Trapping Effect of Artificial Light Sources Upon Animals

1960 ◽  
Vol 13 (1) ◽  
pp. 1-107 ◽  
Author(s):  
F.J. Verheijen
Keyword(s):  
Light Source ◽  
Light Trap ◽  
Light Distribution ◽  
Artificial Light ◽  
Light Sources ◽  
Human Beings ◽  
Optical Illusions ◽  
Apallic Syndrome ◽  
Trapping Effect ◽  
Living Organisms

AbstractAttempts were made to find out why insects and fishes can be captured with the help of lamps, why birds fly against lighthouse lanterns, and why in the laboratory phototaxis is preponderantly positive phototaxis. An extensive review of the literature revealed that none of the numerous old and new theories on photic orientation can account for either of these phenomena. Analysis of the abundance of data on the trapping effect of an artificial light source upon insects, fishes and birds has led to the working hypothesis according to which the low illumination intensity of the environment around such a light source interferes with normal photic orientation resulting in a drift of the animal towards the light source. The observed concentration of animals in the vicinity of a lamp is thought to be the statistical result of this drift. Experiments with insects (bees) demonstrated that an adequate screening of the light scattered from the sky, together with the elimination of the reflection of light by the environment really result in a disorientated drift towards the light source, even when this is the natural light source (the sun). Fishes and birds were forced to move towards a lamp under similar illumination conditions. Photic orientation is assumed to be accomplished by the goal-directed functioning of a number of hierarchically coordinated centres. The animal's movements are controlled by optic feedback based upon the normal differences in the intensities of the light stimuli acting upon the respective photosensitive surfaces. During more detailed orientation, fixation mechanisms are put in circuit by higher coordinating centres in response to sign stimuli. The normal values of these stimuli are determined by the normal angular light distribution in the animal's habitat, which is caused by: i. the nature of the light sources (sun, moon, stars); 2. the scattering and absorbing capacities of the media (the atmosphere and the water) ; and 3. the reflecting capacity of the environment. The abnormal feedback resulting from the abnormal angular light distribution around a lamp-brought about by the elimination of the factors 2 and 3-makes the animal deviate from the intended position or direction of locomotion. Moreover, the servomechanisms of lower coordination levels controlling the fixation movements of the eyes become a play-thing of the stimuli from the lamp that are quantitatively supernormal as compared with the adequate sign stimuli which normally activate the higher coordination centres of the fixation mechanisms. In this way these higher centres are more or less eliminated from the orientation process. Under extreme laboratory illumination conditions this results in a forced drift of the animal towards the lamp irrespective of factors which are incompatible with survival. Similar phenomena in human beings suffering from disturbance of the centres mediating eye movements, and in patients with far advanced cerebral degenerations (apallic syndrome) are thought to favour this concept. The implications of the present concept of photic orientation and disorientation are discussed with regard to the current concepts of pho- totaxis and photokinesis, the light trap technique, some optical illusions, and glaring lights in traffic. The tendency among cyberneticians to overrate the performances of life-imitating-e.g. "phototropic"- machines, which trifle with the complexity of living organisms, is criticized.

The incidence and distribution of the armyworms Mythimna convecta (walker) and Persectania spp. (Lepidoptera: Noctuidae) and their parasitoids in major agricultural districts of Victoria, south-eastern australia

1986 ◽  
Vol 76 (2) ◽  
pp. 199-210 ◽  
Author(s):  
G. McDonald ◽  
A. M. Smith
Keyword(s):  
Light Trapping ◽  
Light Trap ◽  
Field Studies ◽  
Abundant Species ◽  
Crop Damage ◽  
Eastern Australia ◽  
Two Generations ◽  
Regular Sampling ◽  
Trap Catches ◽  
Lepidoptera Noctuidae

AbstractField studies of Mythimna convecta (Walker), Persectania ewingii (Westwood) and P. dyscrita Common, and their associated parasitoids, were conducted in cereals and pastures in Victoria, Australia, in 1980–83. The study included a survey of the armyworm fauna in the major agricultural districts, detailed phenological studies within five oat crops, and ultraviolet-light trapping of adults. M. convecta was the most abundant species in cereals and was found more commonly in the warmer months of spring and summer in all districts. Larval development in oat crops during spring was preceded by little moth activity in light traps. P. ewingii was common in the southern districts and in the cooler months from May to September. It was the most prevalent armyworm species in pastures and rarely occurred in barley. P. dyscrita was the least abundant species and occurred mostly in the drier inland areas, particularly in the west. Light-trap catches of P. ewingii and P. dyscrita suggested there were two generations, one in spring and one in the autumn. Regular sampling in oat crops showed that M. convecta developed faster and was usually more abundant than P. ewingii during seed development and ripening, and hence had the potential to inflict more crop damage. Of the 17 species of parasitoids reared from field-collected larvae, the wasp Campoletis sp. was the most abundant. In 1980–82, average parasitism ranged from 13 to 16% but fell to 2% after the drought of 1982.

Species diversity and seasonality of free-living ticks (Acari: Ixodidae) in the natural habitat of wild Marsh deer (Blastocerus dichotomus) in Southeastern Brazil

2007 ◽  
Vol 143 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Matias P.J. Szabó ◽  
Márcio B. Castro ◽  
Hernani G.C. Ramos ◽  
Marcos V. Garcia ◽  
Karina C. Castagnolli ◽  
...  
Keyword(s):  
Species Diversity ◽  
Natural Habitat ◽  
Southeastern Brazil ◽  
Free Living ◽  
Blastocerus Dichotomus

scholarly journals KEANEKARAGAMAN FENOTIPIK NGENGAT (Subordo Heterocera) BERDASARKAN KARAKTER MORFOLOGI DI KAWASAN UNIVERSITAS RIAU DAN DESA SIABU, PROVINSI RIAU

2019 ◽  
Vol 12 (1) ◽  
pp. 25-37
Author(s):  
Ennie Chahyadi ◽  
Nuryani Nuryani ◽  
Dewi Indriyani Roslim
Keyword(s):  
Genetic Diversity ◽  
Light Source ◽  
Genetic Similarity ◽  
Sampling Method ◽  
Secondary Forest ◽  
Light Trap ◽  
Morphological Characters ◽  
The Body ◽  
Science Faculty ◽  
Mathematics And Science

AbstrakPenelitian tentang ngengat masih sangat sedikit dilakukan di Indonesia terutama di kawasan Universitas Riau dan Desa Siabu Kampar belum ada datanya. Penelitian ini bertujuan untuk menganalisis keanekaragaman fenotip ngengat berdasarkan karakter morfologi untuk mengetahui jarak genetik ngengat di kawasan Universitas Riau dan Desa Siabu. Penelitian dilakukan pada bulan Desember 2016 hingga Mei 2017. Lokasi pengambilan sampel terdapat di dua kawasan dengan enam lokasi yang berbeda yaitu Universitas Riau (Arboretum, Kebun FMIPA, Rusunawa) dan Desa Siabu (perumahan warga, Bukit Tentado dan hutan sekunder). Metode sampling mengunakan perangkap layar (light trap) sebagai sumber cahaya digunakan lampu mercuri merk Philips 160 watt. Bagian tubuh ngengat yang diamati adalah kepala, torak, abdomen dan sayap, jumlah karakter morfologi yang diamati adalah 24 karakter. Setiap karakter morfologi diberi skor kemudian dianalisis menggunakan program NTSYS ps versi 2.02i. Hasil yang didapat yaitu 61 spesies dengan 414 individu dari 10 famili ngengat.  Keanekaragaman fenetik ngengat di Universitas Riau dan Desa Siabu berturut turut adalah 87% dan 78%. Ngengat dari kedua kawasan menunjukkan perbedaan pada karakter ukuran, namun tidak pada karakter morfologi dan warna. Terdapat adanya kemiripan sebesar 66% antara ngengat yang dikoleksi dari Universitas Riau (kebun FMIPA, rusunawa) dengan Desa Siabu (Bukit Tentado dan hutan sekunder).Abstract Research on moths is still very few in Indonesia. Especially in the area of Riau University and Siabu Kampar Village. There is no datum about moths. The objective of this research is to analyze the genetic diversity of moths in Riau University and Siabu Vilage, Riau Province based on morphological characters. The study was conducted from December 2016 to May 2017. The moths were collected from two areas with six different locations such as Riau University (arboretum of mathematics and science faculty) and Siabu Village (village residence, Tentado Hill, and secondary forest). The sampling method that used was the light trap, with 160 watts of mercury, was used as a light source. The parts of the body observed were head, thorax, abdomen, and wings with the number of morphological characters observed by 24 characters. Morphological characters were observed and scored and then analyzed using the NTSYSp c version 2.02i software. The results showed that there were 61 species with 414 individuals from 10 families of moths. The genetic diversity of moth in the Riau University and Siabu Village was 87% and 78%. Moths on both locations indicated no difference in the shape and color, but they were different in size. Moths from FMIPA garden and rusunawa had 66% genetic similarity to one from Tentado Hill and secondary forest.

scholarly journals A comparative assessment of adult mosquito trapping methods to estimate spatial patterns of abundance and community composition in southern Africa

2019 ◽  
Author(s):  
Erin E. Gorsich ◽  
Brianna R. Beechler ◽  
Peter M. van Bodegom ◽  
Danny Govender ◽  
Milehna M. Guarido ◽  
...  
Keyword(s):  
Community Composition ◽  
Southern Africa ◽  
Light Trap ◽  
Regional Distribution ◽  
Adult Mosquito ◽  
Sampling Effort ◽  
Regional Patterns ◽  
Mosquito Abundance ◽  
Trapping Methods ◽  
Surveillance Programs

AbstractBackgroundAssessing adult mosquito populations is an important component of disease surveillance programs and ecosystem health assessments. Inference from adult trapping datasets involves comparing populations across space and time, but comparisons based on different trapping methods may be biased if traps have different efficiencies or sample different subsets of the mosquito community.MethodsWe compared four widely-used trapping methods for adult mosquito data collection in Kruger National Park (KNP), South Africa: Centers for Disease Control miniature light trap (CDC), Biogents Sentinel trap (BG), Biogents gravid Aedes trap (GAT) and a net trap. We quantified how trap choice and sampling effort influence inferences on the regional distribution of mosquito abundance, richness and community composition.ResultsThe CDC and net traps together collected 96% (47% and 49% individually) of the 955 female mosquitoes sampled and 100% (85% and 78% individually) of the 40 species or species complexes identified. The CDC and net trap also identified similar regional patterns of community composition. However, inference on the regional patterns of abundance differed between these traps because mosquito abundance in the net trap was influenced by variation in weather conditions. The BG and GAT traps collected significantly fewer mosquitoes, limiting regional comparisons of abundance and community composition.ConclusionsThis study represents the first systematic assessment of trapping methods in natural savanna ecosystems in southern Africa. We recommend the CDC trap or the net trap for future monitoring and surveillance programs.

scholarly journals The demise of a wonder: Evolutionary history and conservation assessments of the Wonder Gecko Teratoscincus keyserlingii (Gekkota, Sphaerodactylidae) in Arabia

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244150
Author(s):  
Karin Tamar ◽  
Johannes Els ◽  
Panagiotis Kornilios ◽  
Pritpal Soorae ◽  
Pedro Tarroso ◽  
...  
Keyword(s):  
United Arab Emirates ◽  
Evolutionary History ◽  
Habitat Restoration ◽  
Natural Habitat ◽  
Intraspecific Variability ◽  
Anthropogenic Activity ◽  
Suitable Habitat ◽  
Conservation Implications ◽  
Abu Dhabi Emirate ◽  
Conservation Assessments

Effective biodiversity conservation planning starts with genetic characterization within and among focal populations, in order to understand the likely impact of threats for ensuring the long-term viability of a species. The Wonder Gecko, Teratoscincus keyserlingii, is one of nine members of the genus. This species is distributed in Iran, Afghanistan, and Pakistan, with a small isolated population in the United Arab Emirates (UAE), where it is classified nationally as Critically Endangered. Within its Arabian range, anthropogenic activity is directly linked to the species’ decline, with highly localised and severely fragmented populations. Here we describe the evolutionary history of Teratoscincus, by reconstructing its phylogenetic relationships and estimating its divergence times and ancestral biogeography. For conservation implications of T. keyserlingii we evaluate the genetic structure of the Arabian population using genomic data. This study supports the monophyly of most species and reveals considerable intraspecific variability in T. microlepis and T. keyserlingii, which necessitate broad systematic revisions. The UAE population of T. keyserlingii likely arrived from southern Iran during the Pleistocene and no internal structure was recovered within, implying a single population status. Regional conservation of T. keyserlingii requires improved land management and natural habitat restoration in the species’ present distribution, and expansion of current protected areas, or establishment of new areas with suitable habitat for the species, mostly in northern Abu Dhabi Emirate.

scholarly journals Oribatid mites of conventional and organic vineyards in the Valencian Community, Spain

Acarologia ◽  
2018 ◽  
Vol 58 (Suppl) ◽  
pp. 119-133
Author(s):  
Anna Seniczak ◽  
Stanisław Seniczak ◽  
Ivan García-Parra ◽  
Francisco Ferragut ◽  
Pilar Xamaní ◽  
...  
Keyword(s):  
Species Diversity ◽  
Natural Habitat ◽  
Oribatid Mite ◽  
Abundant Species ◽  
Oribatid Mites ◽  
Species Number ◽  
Organic Cultivation ◽  
D 20 ◽  
Mite Communities ◽  
Conventional Systems

In this study the oribatid mite communities of conventional and organic vineyards in theValencian Community (Spain) were compared. The soil samples were collected in El Poble Nou de Benitatxell in autumn 2014 and spring 2015 from four sites, treated as replicates, each including a conventional vineyard, an organic vineyard, and a control (natural habitat, i.e. in plots 1-3 an abandoned vineyard, in plot 4 an area never used in agriculture). Two parallel samples were collected in each vineyard from a zone between vine rows, driven by a tractor (Tr), a zone between vines (Vi), the border of the vineyard (Bo) and from a control, making a total of 112 samples. In total 3,225 oribatid mites were obtained represented by 59 species. No differences were found in density of Oribatida between the conventional, organic vineyards and the control, but the species diversity was higher in the control than in the vineyards. In the vineyards the density and species number of the oribatid mites were highest between vines (the average from all vineyards and both seasons was 4,400 individuals per 1 m2, 15 species), followed by the border of the vineyards (2,800 individuals per 1 m2, 14 species) and were lowest between vine rows (400 individuals per 1 m2, 6 species). The species diversity of Oribatida was higher in autumn than in spring, while the density followed this pattern only in the vineyards, but not in the control. In the vineyards Oribatula excavata dominated (D = 25), followed by Minunthozetes quadriareatus and Passalozetes africanus (D = 18 and 14, respectively), while in the control these species were not abundant. In the control the most abundant species was Oppiella subpectinata (D = 28), followed by Eremulus flagellifer (D = 20). Podoribates longipes and Steganacarus boulfekhari are reported for the first time in Spain. To conclude, the oribatid mites did not benefit from the organic cultivation of the vineyards, probably because they are tolerant to herbicides used in the conventional systems but sensitive to mechanical cultivation of soil, which was even more intense in organic vineyards than in the conventional ones.

This will be discussed later. Two species, Mansonia uniformis and Mansonia septempunctata, which breed in association with macrophytes such as water hyacinth Eichhornia crassipes, became less common from stage 1 to 2. The saltmarsh species Aedes vigilax was also collected in reasonable numbers at all localities around the reservoir. This species is known for its wide dispersal powers and was undoubtedly blown in from the extensive intertidal wetlands on the coast. Thus on the basis of abundance, two taxa – Culex annulirostris and Anopheles annulipes s.1. – warranted further consideration. The former species is considered to be the major vector of arboviruses in Australia (Russell 1995), transmitting Ross River, Barmah Forest, Kunjin, Kokobera, Alfuy and Edge Hill viruses and Murray Valley encephalitis, as well as dog heartworm. Of these, Ross River is by far the most common arbovirus in coastal northern Queensland, with morbidity approximating 400 cases per 100,000 population. Thus from first principles, this arbovirus and perhaps Barmah Forest, about which little is known, would constitute the greatest hazard to recreational use. Although Anopheles annulipes has previously been implicated in malaria transmission at Sellheim during the Second World War, this species group has returned isolated positives of Ross River and Barmah Forest viruses and Murray Valley encephalitis from other parts of Australia. However, no transmission studies have been done on the population from the reservoir. Thus on the evidence to date, it could not be regarded as a major concern at the Ross River dam. Both Culex annulirostris and Anopheles annulipes were shown to have seasonal peaks of abundance during the late post-wet season (March to May), with populations building up with the onset of spring (September to October). Spatially, the trapping programme was designed to compare mosquito numbers on the foreshore of the stage 1 lake with two localities expected to be on the margins of the stage 2A lake, with two remote localities (and therefore theoretically unaffected by any water resource project activity) as negative controls. Mosquito numbers (i.e. for those species known to breed at the dam) decreased with distance away from the Ross River dam. Both light trapping and human bait collections carried out twice per month were reasonable indicators of broad seasonal trends in mosquito abundance. However, the statistical analysis indicated that occasionally the light traps could miss short periods of high biting activity (Jones et al. 1991). If greater resolution was required, it was recommended that light traps could be supplemented with animal baited traps, although it is probable that this could be rectified by intensifying the light trapping regimen. Cluster analyses of dam breeding species in both 1984–85 and 1991–93 indicated that light trap catches along the northern (Big Bay, Ti-Tree Bay, Round Island) and western sides (Ross River) gave similar patterns, but the profile towards the east (Antill Creek, Toonpan, Oak Valley) was somewhat different (Barker-Hudson et al. 1993; Hearnden and Kay 1995). On this basis, adult mosquito surveillance would therefore need to be based on two localities at either end of the lake.

1998 ◽  
pp. 143-143
Keyword(s):  
Light Trapping ◽  
Light Trap ◽  
Species Group ◽  
Adult Mosquito ◽  
Light Traps ◽  
Wet Season ◽  
Mosquito Abundance ◽  
Culex Annulirostris ◽  
Transmission Studies ◽  
Stage 1
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