New records of Chironomidae (Diptera: Insecta) from the Azores, Macaronesia

Murray, D. A.; Hughes, Samantha Jane; Furse, M.T.; Murray, W. A.

doi:10.1051/limn/2004004

Cited by 14 publications

(20 citation statements)

References 8 publications

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“…For example, 71 taxa were recorded at Aude River (Gendron and Laville, 1995) in France, 107 taxa at Pang River (Ruse and Wilson, 1995), in United Kingdom, 54 taxa in Tenerife Island (Armitage et al, 1995b) and 46 taxa on the island of Madeira (Hughes, 2003). Similar to findings from Madeira (Hughes, 2003) and Tenerife (Armitage et al, 1994), the Orthocladiinae and Chironominae were the most frequently observed subfamilies in Azorean streams (Murray et al, 2004;. Similar to Tenerife (Armitage et al, 1994), Thienemaniella clavicornis is the most dominant species in Azorean streams, but appears to be far rarer on Madeira (Hughes, 2003).…”

Section: Discussionsupporting

confidence: 71%

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Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Raposeiro

Costa

Hughes

2011

Ann. Limnol. - Int. J. Lim.

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-Freshwater systems on volcanic oceanic islands have very particular characteristics as a result of their geological origins, relatively small size, distances from source areas for colonizers, and distinct catchment morphology. These factors result in freshwater communities that are clearly distinct from continental systems. Chironomid spatial and temporal distribution was investigated in chironomid assemblages at 21 sites across the Azores Archipelago. Results using PERMANOVA, a permutational multivariate analysis of variance, indicated significant longitudinal differences in assemblages but none between islands or over time.Links between hydromorphological and physicochemical variables and the community assemblage were assessed using DISTLM, a linear model for distance-based multivariate analysis. The percentage of variation explained by hydromorphological factors (31%) was slightly higher than that explained by physicochemical (28%) factors. Descriptors of land use (forest area, scrub area, natural area of catchment) and stream slope were found to be the best environmental predictors of chironomid assemblages in Azores. Physicochemical variables such as temperature, pH, nitrite, iron and conductivity were the principal drivers of change in chironomid composition in stream locations. Headwater sites, characterized by lower temperature, acid to neutral pH values, low conductivity, nutrient and metal concentrations were dominated by Rheocricotopus atripes. Mid-section sites, located in agricultural areas were dominated by Thienemanniella clavicornis. Urbanized lower reaches were characterized by higher temperature, pH, conductivity and nutrient levels and were dominated by Cricotopus sp. These results give essential information that allows us to predict the response of different chironomid species to hydromorphological and physicochemical gradients across the archipelago's streams contributing providing the basis for the development of tools for the implementation of the Water Frame Directive.

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Section: Discussionsupporting

confidence: 71%

“…Frey, 1945;Stora, 1945;Freeman, 1959). More recent records of Chironomidae were provided by Murray et al (2004) and who gave a total of 44 dipteran to the Azores and and Raposeiro et al (in press) who updated the list.…”

Section: Introductionmentioning

confidence: 99%

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Raposeiro

Costa

Hughes

2011

Ann. Limnol. - Int. J. Lim.

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“…Cobo et al (2002) applied current taxonomy to the Azorean records compiled by Kehlmaier (1998). More recent records of Chironomidae were provided by Murray et al (2004) from collections made during the summer of 1997 and the autumn of 1998. Murray et al (2004) in their review of Chironomidae from the Azores gave a total of 49 species, including species regarded as nomen dubium and genus level identification.…”

Section: Introductionmentioning

confidence: 99%

“…More recent records of Chironomidae were provided by Murray et al (2004) from collections made during the summer of 1997 and the autumn of 1998. Murray et al (2004) in their review of Chironomidae from the Azores gave a total of 49 species, including species regarded as nomen dubium and genus level identification. By excluding the genus level and nomen dubium Murray et al (2004) recorded 38 species for the Azores archipelago, the same number of species that Diaz et al (2005) gave in their compiled list.…”

Section: Introductionmentioning

confidence: 99%

“…Murray et al (2004) in their review of Chironomidae from the Azores gave a total of 49 species, including species regarded as nomen dubium and genus level identification. By excluding the genus level and nomen dubium Murray et al (2004) recorded 38 species for the Azores archipelago, the same number of species that Diaz et al (2005) gave in their compiled list. The number of species known from each island varies from 5 in Corvo to 30 in Sa˜o Miguel.…”

Section: Introductionmentioning

confidence: 99%

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Chironomidae (Diptera: Insecta) in oceanic islands: New records for the Azores and biogeographic notes

Raposeiro

Hughes

Costa

2009

Ann. Limnol. - Int. J. Lim.

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-Oceanic islands freshwater systems are unique due to their volcanic origin, oceanic situation, catchment morphology and the presence of distinct freshwater communities when compared with continental systems. This study provides an update of Azorean chironomid fauna records, distribution data and includes biogeographical comments, based on collections covering a range of freshwater habitats on several islands over 2005 to 2008. Island species area-relationships or ISAR was performed as a descriptive model for species accumulation patterns in each island in relation to their area. Six new chironimid species records are given for the Azores archipelago: Orthocladiinae: Orthocladius (Eudactylocladius) fuscimanus (Kieffer, 1908), Pseudorthocladius (Pseudorthocladius) curtistylus (Goetghebuer, 1921), Synorthocladius semivirens (Kieffer, 1909), Parachaetocladius abnobaeus (Wu¨lker, 1959); Chironominae: Chironomus (Chironomus) annularis (Meigen, 1818), Parachironomus tenuicaudatus (Malloch, 1915). As a result, the Azorean chironomid fauna has increased from 38 to 44 species, spread across 33 genera. Most recorded chironomids are primarily of western Palaearctic origin; Nearctic, Oriental and Neotropical regions are comparatively poorly represented. A checklist is provided, incorporating and updating previous records. Chirononidae distribution pattern among the islands is analyzed and island species area-relationship (ISAR) analyses, performed to provide a descriptive model for species accumulation patterns in each island, indicated a positive correlation between species richness (number of species) and the area of the Azorean islands, supporting MacArthur and Wilson 's equilibrium theory of island biogeography. Chironomidae could be promising for searching candidate bioindicators to answer the demand of Water Frame Directive.

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Insights into the fauna associated with Egeria densa at the upper section of the international Minho River estuary (NW Iberian Peninsula) 3 decades after its establishment

et al. 2023

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The macrophyte Egeria densa Planchon, 1849 is a freshwater plant native to the subtropical regions of South America. Fast vegetative reproduction and efficient dispersal allow this species to form extensive beds that produce high levels of oxygen in freshwater ecosystems, generating microhabitats that act as refuge and nursery for an array of organisms, increasing sedimentation and light availability. Despite its undisputable ecological role, it is considered invasive and is present on all continents except Antarctica with the first records in Europe occurring at the 20th century. At the international Minho River (NW Iberian Peninsula), the observation of its presence was noted in the 1990s and is now an established population in this ecosystem. This study is the first descriptive-taxonomical assessment of the associated fauna with the exotic macrophyte E. densa, using both morphological and molecular approaches, three decades after its establishment in the international Minho River. Results indicate the presence of a faunal assemblage, composed a total of 20 identified species, including platyhelminths, hydrozoans, bryozoans, molluscs (Gastropoda), annelids (Oligochaeta and Hirudinea), crustaceans (Ostracoda, Copepoda, Branchiopoda and Amphipoda), aquatic mites and insects. Paludicella aff. articulata (Ehrenberg, 1831), Girardia sinensis Chen & Wang, 2015, Lebertia insignis Neuman, 1880 and Ceriodaphnia rigaudi Richard 1894 are recorded for the first time in Portugal.

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New records of Chironomidae (Diptera: Insecta) from the Azores, Macaronesia

Cited by 14 publications

References 8 publications

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Chironomidae (Diptera: Insecta) in oceanic islands: New records for the Azores and biogeographic notes

Insights into the fauna associated with Egeria densa at the upper section of the international Minho River estuary (NW Iberian Peninsula) 3 decades after its establishment

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