The Food Habits of Stoneflies (Plecoptera) in the Upper Gunnison River, Colorado
1

Fuller, Randall L.; Stewart, Kenneth W.

doi:10.1093/ee/6.2.293

Cited by 69 publications

(49 citation statements)

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“…However, our 4th order upstream site (1) was sufficiently far from the source that we failed to characterize the headwater stonefly community. On the other hand, all species taken by Fuller and Stewart (1977) several years earlier near our Site 3 were present in our samples.…”

Section: Resultsmentioning

confidence: 74%

Serial discontinuities in a Rocky mountain river. I. Distribution and abundance of plecoptera

Stanford

Ward

1989

Regul. Rivers: Res. Mgmt.

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Samples were taken year-round at eleven sites along the altitudinal profile (2900-1400m a.s.1.) of the Gunnison River, a 329 km tributary of the Colorado River, to document the distribution of the Plecoptera and to evaluate responses to hypolimnial-release dams in the headwaters and middle reaches. Twenty-two species were present, with the greatest species richness occurring in an unregulated segment upstream of the middle reach dams; average nymphal biomass over the study period (I75 organisms, 395 mg dry mass m-*) was also greatest in this segment. Only four species (58 organisms, 4Rmg m-*) were present in the tailwaters of the headwater dam and values were greatly reduced (nine species; 35 organisms, 180mg m-2) below the middle reach dams. The stonefly community recovered ca. 80 km downstream from the last dam (15 species; 244 organisms, 250 mg m-2), apparently in response to natural resetting of environmental conditions corresponding to those above the middle reach dams. At the most downstream site (1 1) only four species (four organisms, 16 mg m-') were present. The observed distributional pattern is a classic serial discontinuity in response to hypolimnial stream regulation in a temperate latitude river.

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Section: Resultsmentioning

confidence: 74%

Serial discontinuities in a Rocky mountain river. I. Distribution and abundance of plecoptera

Stanford

Ward

1989

Regul. Rivers: Res. Mgmt.

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“…Hesperoperla occurs alone in warmer streams and in various habitats in the Great Basin where it is the only perlid on some isolated mountain ranges. In Montana Acroneuria abnormis oc- .5 I southern Rockies (Fuller & Stewart, 1977). Calineuria and Hesperoperla co-occur in streams draining lowland lakes in Montana (Sheldon & Oswood, 1977).…”

Section: Resultsmentioning

confidence: 99%

“…Common features of the family include medium to large size, predominantly carnivorous feeding habits (Siegfried & Knight, 1976), and, in most temperate forms, life cycles of two or more years (Hitchcock, 1974). Little information on ecological differentiation is available for the family (Fuller & Stewart, 1977). Temporal segregation, a common tactic for ecological differentiation in stream insects (Grant & Mackay,969), is less available to perlids than other taxa since several year classes are present simultaneously and size variation within year classes is large.…”

Section: Introductionmentioning

confidence: 99%

Coexistence of perlid stoneflies (plecoptera): Predictions from multivariate morphometrics

Sheldon

1980

Hydrobiologia

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Ecological compatibility of the nymphs of 5 stonefly genera (Plecoptera : Perlidae) was predicted from a principal components ordination of metric data on 22 trophic and locomotor structures. Nymphs of these taxa follow different allometry relationships and are more similar at some sizes than others. Coexistence probabilities (o, ., .5o) were estimated from proximity in morphological space, assumed independent, and multiplied to obtain assemblage probabilities of multispecies sets. Combinations with Pc = I occur in western U.S.A. but only of 20 sets with Pc < o.5 is known to exist.

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“…Values of C > 0.60 are considered as biologically significant overlap (Fuller & Stewart, 1977;Wallace, 1981). Overlap coefficients were calculated based on major food types and diatom genera.…”

Section: Methodsmentioning

confidence: 99%

Feeding habits and dietary overlap of Naididae (Oligochaeta) from a bog stream

Smith

Kaster

1986

Hydrobiologia

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Feeding habits and dietary overlap of three species of naidid oligochaetes (Chaetogaster diastrophus, Dero digitata, Dero nivea) were studied during June 1982-December 1983 from a bog stream in Wisconsin, USA. Chaetogaster diastrophus primarily ingested diatoms, while D digitata and D. nivea primarily ingested detritus. Dietary overlap was substantial (97-98%) between D. digitata and D. nivea using the dietary overlap coefficient. Dietary overlap between C. diastrophus and D. digitata was 58-62% and that between C. diastrophus and D. nivea was 51-55%. Dietary differences existed between the three species in the percentage of each major food type and diatom genera ingested, selective ingestion or avoidance of diatom genera and in the size classes (length and/or volume) of diatoms consumed. These data suggest temporal coexistence of these species may possibly be due to complex food resource partitioning, although in this habitat, C diastrophus, D digitata, and D. nivea did not exhibit concurrent peak abundances; thus, interspecific competition for food was minimized.

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The Food Habits of Stoneflies (Plecoptera) in the Upper Gunnison River, Colorado 1

Cited by 69 publications

References 0 publications

Serial discontinuities in a Rocky mountain river. I. Distribution and abundance of plecoptera

Serial discontinuities in a Rocky mountain river. I. Distribution and abundance of plecoptera

Coexistence of perlid stoneflies (plecoptera): Predictions from multivariate morphometrics

Feeding habits and dietary overlap of Naididae (Oligochaeta) from a bog stream

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