Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems
The aim of this paper was to analyze the distribution of chironomids (Diptera, Chironomidae), and determine their substrate preferences, from two hydrosystems located in northeastern Algeria: the Kebir-East and the Seybouse wadis. Sixty-five species were recorded in 49 sampling sites distributed alo...
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| Format: | Article |
| Language: | English |
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PAGEPress Publications
2013-04-01
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| Series: | Journal of Entomological and Acarological Research |
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| Online Access: | http://www.pagepressjournals.org/index.php/jear/article/view/626 |
| _version_ | 1818203389861822464 |
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| author | N. Chaib A. Fouzari Z. Bouhala B. Samraoui B. Rossaro |
| author_facet | N. Chaib A. Fouzari Z. Bouhala B. Samraoui B. Rossaro |
| author_sort | N. Chaib |
| collection | DOAJ |
| description | The aim of this paper was to analyze the distribution of chironomids (Diptera, Chironomidae), and determine their substrate preferences, from two hydrosystems located in northeastern Algeria: the Kebir-East and the Seybouse wadis. Sixty-five species were recorded in 49 sampling sites distributed along the main courses of the two hydrographic nets and their tributaries. The majority of taxa comprised cosmopolitan species widely distributed along these two hydrosystems. <em>Cricotopus</em> (<em>Cricotopus</em>) <em>bicinctus</em> showed the highest abundance and frequency of occurrence (29.52%) and was widespread in almost all the sampling sites. Species richness ranged from 4 to 23, Shannon diversity between 0.15 and 0.90, Evenness from 0.23 to 1. A cluster analysis was carried out to represent the different groups of sites sharing similar species composition. Agglomerative cluster analysis grouped the sampling sites into four clusters according to the community data. An Indval analysis was then carried out to detect indicator species for each group of the sampling sites. <em>Cricotopus</em> (<em>Isocladius</em>) <em>sylvestris</em> was indicator of the first group of the sampling sites. <em>Orthocladius pedestris</em>, <em>Rheocricotopus chalybeatus</em> and <em>C. bicinctus</em> were indicators of the second group, and <em>Polypedilum cultellatum</em> of the third group. The fourth group was not characterized by any species. Indval analysis allowed also to determine species preferences for substrate size: <em>Corynoneura scutellata</em> and <em>Dicrotendipes nervosus</em> emphasized a preference to fine gravel, and <em>Glyptotendipes pallens</em> to fine sand. |
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| id | doaj.art-1826f79bfd1246e989c34c6bdea5f678 |
| institution | Directory Open Access Journal |
| issn | 2038-324X 2279-7084 |
| language | English |
| last_indexed | 2024-12-12T03:24:34Z |
| publishDate | 2013-04-01 |
| publisher | PAGEPress Publications |
| record_format | Article |
| series | Journal of Entomological and Acarological Research |
| spelling | doaj.art-1826f79bfd1246e989c34c6bdea5f6782022-12-22T00:40:04ZengPAGEPress PublicationsJournal of Entomological and Acarological Research2038-324X2279-70842013-04-01451e2e210.4081/jear.2013.e21080Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystemsN. Chaib0A. Fouzari1Z. Bouhala2B. Samraoui3B. Rossaro4Département de Génie des Procédés, Faculté de Technologie, Université du 20 Août 1955, Skikda; Laboratoire de Recherche et de Conservation des Zones Humides, Université du 8 Mai 1945 GuelmaLaboratoire de Recherche et de Conservation des Zones Humides, Université du 8 Mai 1945 GuelmaLaboratoire de Recherche et de Conservation des Zones Humides, Université du 8 Mai 1945 GuelmaLaboratoire de Recherche et de Conservation des Zones Humides, Université du 8 Mai 1945 Guelma, Algeria; Center of Excellence for Research in Biodiversity, King Saud University, Riyadh, Saudi ArabiaDepartment of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, MilanoThe aim of this paper was to analyze the distribution of chironomids (Diptera, Chironomidae), and determine their substrate preferences, from two hydrosystems located in northeastern Algeria: the Kebir-East and the Seybouse wadis. Sixty-five species were recorded in 49 sampling sites distributed along the main courses of the two hydrographic nets and their tributaries. The majority of taxa comprised cosmopolitan species widely distributed along these two hydrosystems. <em>Cricotopus</em> (<em>Cricotopus</em>) <em>bicinctus</em> showed the highest abundance and frequency of occurrence (29.52%) and was widespread in almost all the sampling sites. Species richness ranged from 4 to 23, Shannon diversity between 0.15 and 0.90, Evenness from 0.23 to 1. A cluster analysis was carried out to represent the different groups of sites sharing similar species composition. Agglomerative cluster analysis grouped the sampling sites into four clusters according to the community data. An Indval analysis was then carried out to detect indicator species for each group of the sampling sites. <em>Cricotopus</em> (<em>Isocladius</em>) <em>sylvestris</em> was indicator of the first group of the sampling sites. <em>Orthocladius pedestris</em>, <em>Rheocricotopus chalybeatus</em> and <em>C. bicinctus</em> were indicators of the second group, and <em>Polypedilum cultellatum</em> of the third group. The fourth group was not characterized by any species. Indval analysis allowed also to determine species preferences for substrate size: <em>Corynoneura scutellata</em> and <em>Dicrotendipes nervosus</em> emphasized a preference to fine gravel, and <em>Glyptotendipes pallens</em> to fine sand.http://www.pagepressjournals.org/index.php/jear/article/view/626Algeria, Chironomidae, spatial distribution, substrate-type, Indval analysis, cluster analysis. |
| spellingShingle | N. Chaib A. Fouzari Z. Bouhala B. Samraoui B. Rossaro Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems Journal of Entomological and Acarological Research Algeria, Chironomidae, spatial distribution, substrate-type, Indval analysis, cluster analysis. |
| title | Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems |
| title_full | Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems |
| title_fullStr | Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems |
| title_full_unstemmed | Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems |
| title_short | Chironomid (Diptera, Chironomidae) species assemblages in northeastern Algerian hydrosystems |
| title_sort | chironomid diptera chironomidae species assemblages in northeastern algerian hydrosystems |
| topic | Algeria, Chironomidae, spatial distribution, substrate-type, Indval analysis, cluster analysis. |
| url | http://www.pagepressjournals.org/index.php/jear/article/view/626 |
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