Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines
Trichoptera emergences were cumulatively collected from two rivers in central Palawan over 11 months by use of specially modified emergence traps. The quantitative samples were identified at species level. Fifty morphospecies, of which fifteen have been recently newly described, are recognized. The...
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2020
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ph-ateneo-arc.biology-faculty-pubs-10722021-02-18T07:21:33Z Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines Freitag, Hendrik Mey, Wolfram Trichoptera emergences were cumulatively collected from two rivers in central Palawan over 11 months by use of specially modified emergence traps. The quantitative samples were identified at species level. Fifty morphospecies, of which fifteen have been recently newly described, are recognized. The highest species diversity was found in pristine headwater streams. Leptoceridae were most speciose with eleven Oecetis spp., four Leptocerus spp., two Adicella spp., and one species each of Tagalopsyche, Triaenodes, and Triplectides. Highest abundances were observed for Ecnomus cabayugani (Ecnomidae), Dipseudopsis digitata, and Hyalopsyche winkleri (Dipseudopsidae) which contributed alone 34% of the annual emergence. A mid-stream site where mayflies were mainly absent had the highest Trichoptera emergence, brackish water sites the lowest. Many species in Palawan (44% of the taxa) were recorded at a single locality, suggesting that they are stenoecious and that the real number of species on the island might be distinctly higher. This is the first study ever covering quantitative and species-level Trichoptera emergence data for a longitudinal river course. 2020-06-12T07:00:00Z text application/pdf https://archium.ateneo.edu/biology-faculty-pubs/70 https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1072&context=biology-faculty-pubs Biology Faculty Publications Archīum Ateneo Trichoptera insect emergence longitudinal zonation river ecology Palawan Philippines Animal Sciences Biology |
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Trichoptera insect emergence longitudinal zonation river ecology Palawan Philippines Animal Sciences Biology Freitag, Hendrik Mey, Wolfram Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
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Trichoptera emergences were cumulatively collected from two rivers in central Palawan over 11 months by use of specially modified emergence traps. The quantitative samples were identified at species level. Fifty morphospecies, of which fifteen have been recently newly described, are recognized. The highest species diversity was found in pristine headwater streams. Leptoceridae were most speciose with eleven Oecetis spp., four Leptocerus spp., two Adicella spp., and one species each of Tagalopsyche, Triaenodes, and Triplectides. Highest abundances were observed for Ecnomus cabayugani (Ecnomidae), Dipseudopsis digitata, and Hyalopsyche winkleri (Dipseudopsidae) which contributed alone 34% of the annual emergence. A mid-stream site where mayflies were mainly absent had the highest Trichoptera emergence, brackish water sites the lowest. Many species in Palawan (44% of the taxa) were recorded at a single locality, suggesting that they are stenoecious and that the real number of species on the island might be distinctly higher. This is the first study ever covering quantitative and species-level Trichoptera emergence data for a longitudinal river course. |
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Freitag, Hendrik Mey, Wolfram |
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Freitag, Hendrik Mey, Wolfram |
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Freitag, Hendrik |
title |
Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
title_short |
Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
title_full |
Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
title_fullStr |
Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
title_full_unstemmed |
Diversity of Trichoptera emergence and their longitudinal distribution along streams in central Palawan, the Philippines |
title_sort |
diversity of trichoptera emergence and their longitudinal distribution along streams in central palawan, the philippines |
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Archīum Ateneo |
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2020 |
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https://archium.ateneo.edu/biology-faculty-pubs/70 https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1072&context=biology-faculty-pubs |
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