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Tao X, Li Z, Kan X, Qiao T, Ye C, Sun E. Genetic diversity and differentiation analysis reveals geographical structure characteristics of Dermatophagoides farinae (Acari: Pyroglyphidae). EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:351-367. [PMID: 38433162 DOI: 10.1007/s10493-023-00889-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/29/2023] [Indexed: 03/05/2024]
Abstract
Dermatophagoides farinae (Acari: Pyroglyphidae) has been reported as one of the major sources of indoor allergens that trigger allergic disease in humans. In this study, the genetic diversity and differentiation of nine geographic populations of D. farinae were investigated by analyzing mitochondrial and nuclear genes (COI, Cytb, COI+Cytb, and ITS). The results showed high genetic diversity across the D. farinae populations. The BX (Benxi) population showed the lowest genetic diversity, possibly due to climatic causes. Significant genetic differentiation was observed among D. farinae populations based on mitochondrial genes. The analysis of molecular variance (AMOVA) results elucidated that the contribution to the rate of variation was primarily from among populations. Phylogenetic analysis and haplotype network based on mitochondrial genes both indicated significant geographic structure among D. farinae populations. The nine geographic populations of D. farinae were divided into two groups with the Qinling Mountains-Huai River Line serving as the boundary for spatial analysis of molecular variance analysis (SAMOVA). However, the Mantel test analysis showed no association between genetic differentiation and geographic distance because of the high level of gene flow among some populations through the transportation of stored food. Overall, these results indicate both significant genetic differentiation among D. farinae populations, but also significant gene exchange between them. Results from the analysis of the nuclear gene ITS differed from the mitochondrial genes due to differences in molecular markers between mitochondrial genes and nuclear genes. These observations improve our understanding of the genetic diversity and structure of D. farinae populations.
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Affiliation(s)
- Xianglin Tao
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China
| | - Zheng Li
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China
| | - Xinrui Kan
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China
| | - Tingting Qiao
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China
| | - Changjiang Ye
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China.
| | - Entao Sun
- School of Laboratory Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China.
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Solarz K, Obuchowicz A, Asman M, Nowak W, Witecka J, Pietrzak J, Marek M, Łonak A, Stadnicka I, Hajduga-Staśko B. Abundance of domestic mites in dwellings of children and adolescents with asthma in relation to environmental factors and allergy symptoms. Sci Rep 2021; 11:18453. [PMID: 34531458 PMCID: PMC8446054 DOI: 10.1038/s41598-021-97936-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/20/2021] [Indexed: 11/19/2022] Open
Abstract
Exposure to house dust allergens, mainly from domestic mites, is an important cause of allergic reactions in sensitized asthmatic patients. A total of 63 dust samples were collected from 16 flats in Bytom (south Poland); in each flat a person (age 4-17 years) suffering from bronchial asthma lived with his/her family. Mite density was calculated as the number of specimens per g of dust. The results were compared with household features and the data were statistically analyzed. In total 566 mite specimens were isolated, including 526 members of the family Pyroglyphidae (93%). The dominant species were Dermatophagoides pteronyssinus (60% of the total count) and Dermatophagoides farinae (32%). Pyroglyphids were found in all mite positive samples (68%) of which 35% also contained non-pyroglyphids, including glycyphagids, cheyletids and gamasids. The results suggest associations between the density of some mite taxa (per g of dust) and the following indoor environmental factors: presence of pets, number of inhabitants, coal-stoves as a type of heating, cleaning frequency, higher relative humidity, presence of flowers and PVC windows. The severity of asthma seems to be associated with the numbers of D. farinae, total domestic mites and live mites per g of dust.
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Affiliation(s)
- Krzysztof Solarz
- Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland
| | - Anna Obuchowicz
- Department of Pediatrics in Bytom, Faculty of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Marek Asman
- Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland.
| | - Wacław Nowak
- Department of Pediatrics in Bytom, Faculty of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Joanna Witecka
- Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland
| | - Jolanta Pietrzak
- Department of Pediatrics in Bytom, Faculty of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Marta Marek
- Department of Pediatrics in Bytom, Faculty of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Aldona Łonak
- Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland
| | - Izabela Stadnicka
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland
| | - Bernadeta Hajduga-Staśko
- Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland
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Gamasina Mites (Acari: Mesostigmata) Associated with Animal Remains in the Mediterranean Region of Navarra (Northern Spain). INSECTS 2019; 10:insects10010005. [PMID: 30621255 PMCID: PMC6359140 DOI: 10.3390/insects10010005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/10/2018] [Accepted: 12/19/2018] [Indexed: 11/24/2022]
Abstract
Mites should not be overlooked as a forensic tool, as many are commonly associated with decomposing animal matter and are closely associated with specific insect carriers and habitats. It is necessary to increase our understanding of the diversity of mites that are found in human and animal remains, their geographical distribution, and their population dynamics. This work is the first study of the role of mites in forensic science in the Mediterranean region of Navarra (northern Spain). Samples were taken using three types of traps (96 modified McPhail, 96 modified pitfall, and 32 carrion on surface) baited with pig carrion during the period between 11 April and 24 June, 2017. Insects were collected in 100% of the traps and only 27% of them contained mites. Information on 26 species of mites belonging to seven families, their ontogenetic phoretic stage/s, their abundance, and presence/absence during the spring season of the study is given. The most abundant species collected were Macrocheles merdarius, Poecilochirus austroasiaticus, and Poecilochirus subterraneus. We are contributing 16 new records for the Iberian Peninsula: seven species of Parasitidae, three species of Macrochelidae, four species of Eviphididae, one species of Halolaelapidae, and one species of Laelapidae.
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Hani M, Thieven U, Perotti MA. Soil bulb mites as trace evidence for the location of buried money. Forensic Sci Int 2018; 292:e25-e30. [PMID: 30340894 DOI: 10.1016/j.forsciint.2018.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/07/2018] [Accepted: 09/17/2018] [Indexed: 10/28/2022]
Abstract
This study reports for the first time the use of soil micro-invertebrates, mites, as trace evidence to localise buried objects such as money. The case relates to a crime in Germany, where a large sum of banknotes had been hidden in an unknown location, likely abroad. In 2016, part of the money (approx. €500,000 in €500 value notes) was confiscated by the police. After analysis in the forensic lab, it was discovered that the notes were covered with small particles of a sort of debris, later identified as specimens of Rhizoglyphus howensis Manson, a non-European, nor Mediterranean species of root or bulb mites (Acaridae: Rhizoglyphinae). The restricted biogeographic distribution of R. howensis, originated in unspoiled forest soil in the Australasian region, limited the search for the money to the areas visited by the perpetrators during their trips to the region. Rhizoglyphus howensis biology provided further clues on the whereabouts of the banknotes, as they are specialist plant feeders, exclusively feeding on seeds of palm trees and on roots of Quercus patula in the Australasian region. This report aims to highlight the importance of the correct identification of the microscopic organisms associated with a crime scene and the immediate retrieval of micro-invertebrate trace evidence. This is the first record of R. howensis from Europe, and from banknotes.
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Affiliation(s)
- Medjedline Hani
- Ecology and Evolutionary Biology Section, School of Biological Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AS, United Kingdom.
| | - Ursula Thieven
- FG 51.2, LKA Niedersachsen, Kriminaltechnisches Institut, Schützenstr. 25, D-30161 Hannover, Germany.
| | - M Alejandra Perotti
- Ecology and Evolutionary Biology Section, School of Biological Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AS, United Kingdom.
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Aykut M, Erman OK, Doğan S. Variability in Population Density of House Dust Mites of Bitlis and Muş, Turkey. JOURNAL OF MEDICAL ENTOMOLOGY 2016; 53:513-518. [PMID: 26921859 DOI: 10.1093/jme/tjw009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
This study was conducted to investigate the relationship between the number of house dust mites/g dust and different physical and environmental variables. A total of 1,040 house dust samples were collected from houses in Bitlis and Muş Provinces, Turkey, between May 2010 and February 2012. Overall, 751 (72.2%) of dust samples were mite positive. The number of mites/g dust varied between 20 and 1,840 in mite-positive houses. A significant correlation was detected between mean number of mites and altitude of houses, frequency of monthly vacuum cleaning, number of individuals in the household, and relative humidity. No association was found between the number of mites and temperature, type of heating, existence of allergic diseases, age and structure of houses. A maximum number of mites were detected in summer and a minimum number was detected in autumn.
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Affiliation(s)
- M Aykut
- Science and Technology Application and Research Center, Dicle University, Diyarbakır, Turkey ,
| | - O K Erman
- Department of Biology, Science Faculty, Atatürk University, Erzurum, Turkey , and
| | - S Doğan
- Department of Biology, Arts & Sciences Faculty, Erzincan University, Erzincan, Turkey
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Zeytun E, Doğan S, Özçiçek F, Ünver E, Dilkaraoğlu S. Comparison of Living and Bedrooms in Terms of House Dust Mites in the Province of Erzincan, Turkey. JOURNAL OF MEDICAL ENTOMOLOGY 2016; 53:26-30. [PMID: 26586534 DOI: 10.1093/jme/tjv186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The most important factors in development of symptoms such as allergic asthma, rhinitis, conjunctivitis, and dermatitis in atopic persons are the allergens of house dust mites. The objective of this study was to compare living rooms and bedrooms, and woolen and spring mattresses in terms of the number and species of mites in houses in the province of Erzincan, Turkey. In total, 74 dust samples were collected from living rooms and bedrooms of 37 randomly selected houses from various districts of the city. All examined houses were positive for house dust mites. In total, 5,210 mites were isolated, 1,058 from the living rooms and 4,152 from the bedrooms, and the differences were statistically significant (P < 0.05). Of 4,152 mites detected in bedrooms, 1,330 (32%) were isolated from 31 spring mattresses and 2,822 (68%) from 6 woolen mattresses (P < 0.001). The study identified 14 families, 17 genera, and 16 species belonging to Astigmata, Prostigmata, and Oribatida. Of these, Dermatophagoides pteronyssinus (Trouessart) was the dominant species: living rooms, 63.3%; bedrooms, 74.4%; woolen mattresses, 84.6%; and spring mattresses, 52.8%. This was followed by Lepidoglyphus destructor (Schrank) (9.8%), Dermatophagoides farinae Hughes (5.1%), Tyrophagus putrescentiae (Schrank) (4.3%), and Acarus siro L. (2.5%) in living rooms; L. destructor (11.2%), Euroglyphus maynei (Cooreman) (4.2%), D. farinae (3.8%), and T. putrescentiae (1.0%) in bedrooms; L. destructor (11.8%), D. farinae (2.1%), E. maynei (0.3%), and T. putrescentiae (0.2%) in woolen mattresses; and E. maynei (12.5%), L. destructor (9.9%), D. farinae (7.5%), and T. putrescentiae (2.7%) in spring mattresses.
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Yu JM, Luo QH, Sun JL, Shi CL, Yin J, Zhou YL, Tang R, Zhang H, Yu Z, Chen M. Diversity of House Dust Mite Species in Xishuangbanna Dai, a Tropical Rainforest Region in Southwest China. BIOMED RESEARCH INTERNATIONAL 2015; 2015:421716. [PMID: 26064909 PMCID: PMC4434167 DOI: 10.1155/2015/421716] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 08/18/2014] [Accepted: 08/19/2014] [Indexed: 12/31/2022]
Abstract
PURPOSE To survey the species diversity of home dust mites (HDM) in Xishuangbanna, a tropical rainforest region in Southwest China. METHODS From August 2010 to January 2011, mite-allergic patients and healthy controls were invited to participate. Dust samples from the patients' homes were collected, and mites in the samples were isolated. Permanent slides were prepared for morphologically based species determination. RESULTS In total, 6316 mite specimens of morphologically identifiable species were found in 233 dust samples taken from 41 homes. The result shows that the mite family of Pyroglyphidae occupied the highest percentage of the total amount of mites collected, followed by Cheyletidae family. The most common adult Pyroglyphidae mites were Dermatophagoides (D.) farinae, D. pteronyssinus, and D. siboney. The most common mites found from other families were Blomia tropicalis, Tyrophagus putrescentiae, and Aleuroglyphus ovatus. Four main allergenic dust mite species D. farinae, D. pteronyssinus, D. siboney, and Blomia tropicalis were found to be coinhabiting in 6/41 homes. CONCLUSION The HDM population in homes in Xishuangbanna, a tropical rainforest region in Southwest China, has its own characteristics. It has rich dust mite species and the dust mite densities do not show significant variation across seasons.
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Affiliation(s)
- Jing-Miao Yu
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Qing-Hua Luo
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
| | - Jin-Lu Sun
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Cun-Lian Shi
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yu-Ling Zhou
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
| | - Rui Tang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Hui Zhang
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
| | - Zhang Yu
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
| | - Meng Chen
- Department of Dermatology and Venereology, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Yunnan 666100, China
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Fereidouni M, Fereidouni F, Hadian M, Nourani Hasankiadeh S, Mazandarani M, Ziaee M. Evaluation of the level of house dust mite allergens, Der p 1 and Der f 1 in Iranian homes, a nationwide study. Allergol Immunopathol (Madr) 2013; 41:381-6. [PMID: 23485047 DOI: 10.1016/j.aller.2012.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Revised: 10/28/2012] [Accepted: 10/30/2012] [Indexed: 11/20/2022]
Abstract
BACKGROUND Exposure to house dust mites (HDMs) is a major risk factor for the development of allergic symptoms. HDMs are worldwide in distribution. Assessing these allergens in each area is a critical step in evaluating the risk of sensitisation and controlling allergic symptoms. The aim of the present study was to evaluate the level of major HDMs, Der p 1 and Der f 1, in various parts of Iran. METHODS In 2009, 257 dust samples were obtained from living rooms' carpets in seven cities throughout Iran with different geoclimatic conditions. The level of Der p 1 and Der f 1 was measured by commercial ELISA. RESULTS Detectable level of Der p 1 and Der f 1 levels were only found in Gorgan and Sari, two cities near the Caspian Sea with moderate temperatures and high relative humidity. In both of these cities, Der f 1 was more frequent than Der p 1 (100% vs. 85%) and was found to be at a higher level than Der p 1 (geometric mean 3128 vs. 439ng/g dust, P<0.001). CONCLUSION The results of this study confirm that house dust mites in Iran are restricted to the Caspian Sea coastal areas, and in other parts, due to seasonal variations of temperature and humidity mites are not able to grow well and therefore are not an important risk factor for sensitisation and respiratory allergies.
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Affiliation(s)
- M Fereidouni
- Asthma, Allergy and Immunology Research Center, Birjand University of Medical Sciences, Birjand, Iran.
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Oconnor BM. Astigmatid mites (Acari: Sarcoptiformes) of forensic interest. EXPERIMENTAL & APPLIED ACAROLOGY 2009; 49:125-133. [PMID: 19609687 DOI: 10.1007/s10493-009-9270-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Accepted: 05/18/2009] [Indexed: 05/28/2023]
Abstract
This paper reviews the occurrence of mites of the infraorder Astigmata in situations involving the legal system, particularly in the area of medicocriminal entomology. Species in the families Acaridae, Lardoglyphidae and Histiostomatidae are encountered in stored food products and in vertebrate carrion, including human remains. Some of these species are incidentals, whereas others are obligate necrophages. Phoretic associations between these mites and insects allows for rapid dispersal and colonization of such patchy resources.
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Affiliation(s)
- Barry M Oconnor
- Museum of Zoology & Department of Ecology & Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109-1079, USA.
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Braig HR, Perotti MA. Carcases and mites. EXPERIMENTAL & APPLIED ACAROLOGY 2009; 49:45-84. [PMID: 19629724 DOI: 10.1007/s10493-009-9287-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 06/16/2009] [Indexed: 05/28/2023]
Abstract
Mites are involved in the decomposition of animal carcases and human corpses at every stage. From initial decay at the fresh stage until dry decomposition at the skeletal stage, a huge diversity of Acari, including members of the Mesostigmata, Prostigmata, Astigmata, Endeostigmata, Oribatida and Ixodida, are an integral part of the constantly changing food webs on, in and beneath the carrion. During the desiccation stage in wave 6 of Mégnin's system, mites can become the dominant fauna on the decomposing body. Under conditions unfavourable for the colonisation of insects, such as concealment, low temperature or mummification, mites might become the most important or even the only arthropods on a dead body. Some mite species will be represented by a few specimens, whereas others might build up in numbers to several million individuals. Astigmata are most prominent in numbers and Mesostigmata in diversity. More than 100 mite species and over 60 mite families were collected from animal carcases, and around 75 species and over 20 families from human corpses.
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Affiliation(s)
- Henk R Braig
- School of Biological Sciences, Bangor University, Deiniol Road, Bangor, Wales, LL57 2UW, UK.
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Alejandra Perotti M, Lee Goff M, Baker AS, Turner BD, Braig HR. Forensic acarology: an introduction. EXPERIMENTAL & APPLIED ACAROLOGY 2009; 49:3-13. [PMID: 19609686 DOI: 10.1007/s10493-009-9285-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 06/07/2009] [Indexed: 05/28/2023]
Abstract
Mites can be found in all imaginable terrestrial habitats, in freshwater, and in salt water. Mites can be found in our houses and furnishings, on our clothes, and even in the pores of our skin-almost every single person carries mites. Most of the time, we are unaware of them because they are small and easily overlooked, and-most of the time-they do not cause trouble. In fact, they may even proof useful, for instance in forensics. The first arthropod scavengers colonising a dead body will be flies with phoretic mites. The flies will complete their life cycle in and around the corpse, while the mites may feed on the immature stages of the flies. The mites will reproduce much faster than their carriers, offering themselves as valuable timeline markers. There are environments where insects are absent or rare or the environmental conditions impede their access to the corpse. Here, mites that are already present and mites that arrive walking, through air currents or material transfer become important. At the end of the ninetieth century, the work of Jean Pierre Mégnin became the starting point of forensic acarology. Mégnin documented his observations in 'La Faune des Cadavres' [The Fauna of Carcasses]. He was the first to list eight distinct waves of arthropods colonising human carcasses. The first wave included flies and mites, the sixth wave was composed of mites exclusively. The scope of forensic acarology goes further than mites as indicators of time of death. Mites are micro-habitat specific and might provide evidential data on movement or relocation of bodies, or locating a suspect at the scene of a crime. Because of their high diversity, wide occurrence, and abundance, mites may be of great value in the analysis of trace evidence.
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Affiliation(s)
- M Alejandra Perotti
- School of Biological Sciences, University of Reading, Whiteknights, Reading, Berkshire, RG6 6AS, UK.
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