Emergence Trap Collections of Trichoptera From an Oregon Stream

Anderson, Norman H.; Wold, Janet L.

doi:10.4039/ent104189-2

Cited by 32 publications

(22 citation statements)

References 9 publications

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“…That our traps continued to collect large numbers of caddisflies throughout the study period, indicates that they did not effect a deleterious change in the substrate they covered. Anderson & Wold (1972), using emergence traps placed on only the riffle sections of an Oregon stream over a period of almost 3 years, collected 1638 specimens of caddisflies representing 39 species in 11 I families. Masteller & Flint (1980) operated a tent-like emergence trap over a stream in Pennsylvania for 3 years and obtained 1782 specimens comprising 17 species in 6 families.…”

Section: Discussionmentioning

confidence: 99%

“…ed aspect, especially in Ontario. Anderson & Wold (1972) investigated the emergence patterns of some caddisflies in an Oregon stream, and Masteller & Flint (1979 studied the emergence phenology, with light and emergence traps, of caddisflies in Pennsylvania. Although Gledhill (1960) studied the emergence of major groups (Ephemeroptera, Plecoptera and Trichoptera) of aquatic insects, he dealt with only a few aspects of trichopteran emergence patterns.…”

Section: Introductionmentioning

confidence: 99%

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Emergence of some caddisflies (Trichoptera) from a wooded stream in southern Ontario

1984

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Twenty-eight species of nine families of caddisflies (Trichoptera) were identified in 170 samples taken over an 8-month period from five emergence traps placed on a second-order, forested, cold-stenothermal stream on the Niagara Escarpment, Ontario, Canada.A mean of 980.9 caddisflies m 2 of streambed was obtained over the entire sampling period. Eleven common species accounted for 92.8% of the total emergence with specific proportions ranging from 23.8% ( Wormaldia moesta) to 0.1 1% (Rhyacophila sp.). The use of various kinds of traps in other studies and their effects on the detection of species composition and abundance are discussed and compared with the present study.Although the distributions of all the common species were invariant over time, four species showed low to high degrees of patchiness in the streambed; the other seven common species were uniformly distributed. However, a large residual variance suggested a subtle mechanism of microhabitat selection by the larvae and (or) pupae, not detectable by even the small emergence traps used.Both sexes of 15 species, only males of 4 and only females of 9 species were collected. Eight of the eleven common species showed significant departures from a balanced sex ratio and five exhibited a protandry of from 1 to 3 weeks. Neither this study nor others have been able to establish a predictable pattern of sex ratios in Trichoptera.The emergence periods and patterns of the eleven common species are described and compared with other studies. Of these common species, one emerged in the spring, seven during the summer and three during the late summer or early fall. Ten species had a short emergence period with a distinct peak and a significantly skewed pattern. One species, Parapsyche apicalis, exhibited a prolonged emergence period, no distinct peak and a significantly platykurtotic 2 pattern. With the exception of Lepidostoma sp. A, the emergence patterns of the common species were unimodal.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Emergence of some caddisflies (Trichoptera) from a wooded stream in southern Ontario

1984

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“…Large traps were needed to enclose the range of microhabitats that are found in cobble-boulder substrates. Further details of the sites and trapping procedures are given in Anderson et al (1984).…”

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confidence: 99%

“…Data on the Trichoptera community at Quartz Creek in 1986 were analyzed in detail for comparison with emergence trap results for 1982-83 (Anderson et al, 1984). The number of species recorded in the debris-torrent area (39) was similar to that for 1982-83 (38) ( lections.…”

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confidence: 99%

Influence of disturbance on insect communities in Pacific Northwest streams

Anderson

1992

Hydrobiologia

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Coniferous forests of the Pacific Northwest provide a unique setting for stream ecology research because of the great age of the forests and the important role of wood debris in structuring aquatic systems. The composition and diversity of the insect community in Mack Creek, a stream in a 450 yr conifer forest, was compared with that in Grasshopper Creek where it flowed through a recent cleat-cut, and at Quartz Creek, which had a 40 yr deciduous canopy. Of the 256 taxa identified, Mack Creek had the highest species richness (196) and evenness. The open site had 191 taxa but high dominance of a few grazer taxa. The deciduous-canopy site had 165 taxa with abundant detritivores. Despite differences in density, the biomass of emergence was similar at the three sites, ranging from 1.53 to 1.65 g rnp2 yr-'.The importance of disturbance in structuring stream communities was demonstrated in phenomenological studies after a debris torrent at Quartz Creek, and by monitoring stream recovery following the eruption of Mt. St. Helens in 1980. At Quartz Creek, the debris torrent eliminated the fauna from a 300 m reach, but there was rapid recovery. Emergence density in the same year was similar to that of the control site. The major shift in populations was a decrease in detritivores and moss associates and an increase in grazers, especially Baetis mayflies.At Ape Creek on Mt. St. Helens, over 200 taxa were recorded by 1987 but most occurred in very low densities. This site is reset by winter freshets and by infilling with glacial fines in the summer so the fauna continues to be dominated by weedy, or early successional species. At Clearwater Creek, the presence of wood debris as a stable substrate and limited inputs of fine sediment after 1980 have hastened population recovery. A decade after the eruption this site can be characterized as being in the mid-stages of succession with high insect productivity from an algal-based food web. With further growth of the riparian vegetation I predict a shift towards a detritus-based food web and fauna more similar to Mack Creek than it is at present. IntroductionTeam) developed as a group of researchers studying factors affecting the structure and function of Interdisciplinary ecological research in the Conifstream ecosystems. With biologists, hydrologists, erous Forest biome received a major boost from geomorphologists, and foresters involved, there the IBP funding in the early 1970's. The Stream was a broad perspective on the watershed level, Team at Oregon State University (OSU Stream echoing the approach advocated by Hynes (1975)

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“…8). The species has been reported from the following states and provinces: CANADA: British Columbia (Williams & Williams 1987; and as P. guppyi by Schmid 1951;Schmid & Guppy 1952;, USA: Washington (Banks 1936;Ross 1944;Ruiter et al 2005), Oregon (Anderson & Wold 1972;Anderson 1976;; and as P. guppyi by Anderson 1976;, and California (Denning 1956;.…”

Section: Methodsmentioning

confidence: 99%

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America

Ito¹,

Wisseman

Morse

et al. 2014

Zootaxa

979

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The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) is revised in North America. Descriptions of the western species, P. nearcticus Banks 1938, are provided with the first descriptions of the female, pupa, larva, egg and case and with notes on food, habitat and annual life cycle. The male and female of the eastern species, P. celsus Ross 1936, are described or redescribed with some ecological notes. Distributions of the two species are summarized.

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Emergence Trap Collections of Trichoptera From an Oregon Stream

Cited by 32 publications

References 9 publications

Emergence of some caddisflies (Trichoptera) from a wooded stream in southern Ontario

Emergence of some caddisflies (Trichoptera) from a wooded stream in southern Ontario

Influence of disturbance on insect communities in Pacific Northwest streams

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America

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