Natural History and General Behavior of the Ephemeridae Nymphs Heptagenia Interpunctata (Say)

Wodsedalek, J. E.

doi:10.1093/aesa/5.1.31

Cited by 13 publications

(12 citation statements)

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“…Because R. pellucida and S. interpunctatum are both flatheaded mayflies of the subfamily Heptageniinae, and can be found coexisting in the same general area of streams, it is interesting to compare their morphology, microhabitat, and feeding movements. Stenacron interpunctatum is found in slow-current areas, on the bottom of stones, away from the current (Flowers and Hilsenhoff 1978, McShaffrey and McCafferty 1986, Wiley and Kohler 1980, Wodsedalek 1912. We observed R. pellucida living on the tops of stones in high-current areas; Flowers and Hilsenhoff (1978) also found this species in high-current microhabitats.…”

Section: Discussionmentioning

confidence: 52%

Feeding Behavior of Rhithrogena pellucida (Ephemeroptera:Heptageniidae)

McShaffrey¹,

McCafferty²

1988

Journal of the North American Benthological Society

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Larvae of Rhithrogena pellucida (Ephemer0ptera:Heptageniidae) were observed feeding in observation flow cells using macroscopic video techniques. The stereotypic feeding behavior is described as cycles delineated by specific movements of the labial palps and consisting of stages of coordinated movement of the entire suite of mandibulate mouthparts. When employing the Labial Brushing Cycle, larvae used the labial palps to brush loosely accreted material from the substrate. When employing the Maxillary Scraping Cycle, larvae used special pectinate setae of the maxillary palps to remove material more tightly bound to the substrate. In both cycles, the legs of the larvae also removed material from the substrate. Larvae did not perform gathering cycles or feed on deposits of detritus. Food processing by successive fields of setae on various mouthparts to the point of ingestion is described in detail. Feeding observations combined with field and laboratory data on gut content and microhabitat distribution suggest that R. pellucida feeds primarily on periphyton. Comparisons are drawn between the primary scraping function of R. pellucida and the primary brushing function of Stenacron interpunctatum. A spectrum of adaptational strategies for obtaining food materials along a gradient of substrate association from seston to the most tightly attached materials is suggested and may be used to describe the feeding roles of many macroinvertebrates.

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Section: Discussionmentioning

confidence: 52%

Feeding Behavior of Rhithrogena pellucida (Ephemeroptera:Heptageniidae)

McShaffrey¹,

McCafferty²

1988

Journal of the North American Benthological Society

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“…Among heptageniids it seems to have an unmore numerous in a pool directly upstream . As in the usually high tolerance for silty environments and slow case of Stenacron at this station, there was a drastic reduccurrents ; it also occurs in lakes (Wodsedalek, 1912) . tion in numbers of nymphs during the winter of 1973 .…”

Section: Life Historiesmentioning

confidence: 75%

Life cycles and habitats of wisconsin heptageniidae (ephemeroptera)

Flowers

Hilsenhoff

1978

Hydrobiologia

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MethodsDetailed studies were made of the life cycles of Heptageniidae known to occur in Wisconsin . 19 species had univoltine cycles while two and possibly a third had bivoltine cycles. Three univoltine species developed in late spring and early summer while the other univoltine species developed in fall, winter and early spring. For three of the univoltine species, eggs hatched both in fall and the following spring . Diagrams of the life cycles of 15 Wisconsin heptageniids are presented, illustrating the different types of life cycles . Also presented are observations on the food and habitats of the nymphs and flight periods of the adults .

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“…A low level of passive drift as a result of mechanical erosion of the stream bed is expected, but the nocturnal peak observed in drift is generally the result of a behavioral change in activity of the benthos, which increases the propensity for detachment and transport by the current. Wodsedalek ( 1912) observed a positive thigmotaxis and a negative phototaxis in the nymphs of H eptagenia interpunctata, and subsequently many authors (see Hughes 1966 andElliott 1967a) have shown negative phototaxis in various genera, mostly Ephemeroptera. Scherer (1962), Hughes (1966), andElliott (1967a) have demonstrated positive phototaxis particularly in the Diptera, but all described species continue to exhibit positive thigmotaxis as long as lotic conditions prevail ( cf.…”

mentioning

confidence: 94%

Light Control of Aquatic Insect Activity and Drift

Bishop

1969

Ecology

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Investigations on aquatic insect activity, measured as drift in an artificial stream system with rigid light and temperature conditions, demonstrated a light—controlled, labile, exogenously—mediated activity rhythm. A threshold value for light, incident at the water surface, which when decreased led to high drift rates, and when increased suppressed activity, was determined to lie between 10—3 and 10—4 ft—c (10—2 and 10—3 lux). Preliminary experiments showed variations in wavelength to have little effect on the activity patterns of the insects.

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Natural History and General Behavior of the Ephemeridae Nymphs Heptagenia Interpunctata (Say)

Cited by 13 publications

References 0 publications

Feeding Behavior of Rhithrogena pellucida (Ephemeroptera:Heptageniidae)

Feeding Behavior of Rhithrogena pellucida (Ephemeroptera:Heptageniidae)

Life cycles and habitats of wisconsin heptageniidae (ephemeroptera)

Light Control of Aquatic Insect Activity and Drift

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