Ohio Journal of Science: Volume 78, Issue 6 (November, 1978)

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Front Matter
pp. 0
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Medical Ecology
Vaughn, Charles M. pp. 290-296
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Brief Note Report of a Pennsylvanian Sponge New to Ohio: Heliospongia Ramosa Girty (Demospongea: Heliospongiidae)
Hoare, Richard D. pp. 296-297
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Brief Note Some Aspects of Life History and Ecology of the Isopod Asellus R. Racovitzai in Western and Central Lake Erie
Kerr, Jeff R. pp. 298-300
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Seasonal Rates of Vocalizations in Eastern Chipmunks
Yahner, Richard H. pp. 301-303
Article description | Article Full Text PDF (248KB)

Life History of Acropteroxys Gracilis (Coleoptera: Languriidae) on Common Ragweed in Northeastern Ohio
Piper, Gary L. pp. 304-309
Article description | Article Full Text PDF (1233KB)

Lack of an Interchromosomal Effect Associated with Spontaneous Recombination in Males of Drosophila Melanogaster
Woodruff, R. C.; Slatko, Barton; Thompson, James N., Jr. pp. 310-317
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Incidence of Black Spot Disease in Fishes in Cedar Fork Creek, Ohio
Berra, Tim M.; Au, Ray-Jean pp. 318-322
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Inter and Intraspecific Interactions Between Red-Tailed Hawks and Great Horned Owls in Central Ohio
Springer, Mark Andrew; Kirkley, John Stephen pp. 323-328
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Index to Volume 78-1978
pp. 329-331
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Back Matter
pp. 999
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    Back Matter
    (1978-11)
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    Index to Volume 78-1978
    (1978-11)
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    Inter and Intraspecific Interactions Between Red-Tailed Hawks and Great Horned Owls in Central Ohio
    (1978-11) Springer, Mark Andrew; Kirkley, John Stephen
    Interspecific relationships between Red-tailed hawks and Great horned owls reveal distinct chronological activities that facilitate their inter-related nesting patterns. The hawk to owl ratio in the study area in 1976 was approximately 1.3 : 1. This proximal nesting may have had some effect upon Red-tailed Hawk success, in that Great Horned Owl predation on Red-tailed Hawks was related to their interspecific nesting distances. Although Great Horned Owls partially depend upon Redtailed Hawks for their nest sites (59%) and the diet of these two raptors do overlap in some prey selected, direct competition for these resources is minimized by the temporal segregation of their breeding chronologies and their daily activity patterns.
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    Incidence of Black Spot Disease in Fishes in Cedar Fork Creek, Ohio
    (1978-11) Berra, Tim M.; Au, Ray-Jean
    A total of 4175 fishes belonging to 29 taxa in 6 families was examined for black spot disease. Of that total, 89% were infected with one or more metacercariae of the strigeid fluke, Uvulifer ambloplitis. Rhinichthys atratulus, Semotilus atromaculatus and Campostoma anomalum had the highest incidence of infection and the greatest number of individual parasites. Other pool-dwelling minnows such as Notropis cornutus and Pimephales notatus were also heavily infected, whereas Noiropis photogenus, which prefers deep, swift riffles, had very few cysts. The only non-minnows to approach the high totals of the pool-dwelling cyprinids were Catostomus commersoni and Etheostoma nigrum. Hypentelium nigricanz, which prefers faster water than Catostomus and three species of Etheostoma, which, unlike E. nigrum, are rime dwelling forms, also had lower incidences of infection and fewer cysts. Coitus bairdi, another rapid water species, did not develop black spot disease. Only 1 specimen of 225 Ericymba buccata, which occur over shifting, sandy bottoms, had a single cyst. Our data suggest that the species which inhabit the slower flowing waters of a stream are likely to be more heavily infected than their relatives which prefer faster water because snail hosts are absent and any cercariae present are more likely to be swept away in rapid water and thus have less of a chance to penetrate a host.
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    Lack of an Interchromosomal Effect Associated with Spontaneous Recombination in Males of Drosophila Melanogaster
    (1978-11) Woodruff, R. C.; Slatko, Barton; Thompson, James N., Jr.
    It is shown that the frequency of spontaneous male recombination in two different lines of Drosophila melanogaster (OKI and T-007) are not subject to an interchromosomal effect. Second-chromosome male recombination in these lines was not affected by heterozygosity for the multiple third-chromosome inversions In(3LR)TM3 or In(3LR)Ubxm, which do affect recombination in females. It seems, therefore, that a large fraction of spontaneous recombination in males of D. melanogaster occurs by some mechanism other than that in females. We discuss the possibility that the mechanism is chromosome breakage and reunion, and that these breakage events may be caused by a microorganism.
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    Life History of Acropteroxys Gracilis (Coleoptera: Languriidae) on Common Ragweed in Northeastern Ohio
    (1978-11) Piper, Gary L.
    The life cycle of Acropteroxys gracilis (Newman), a languriid associate of common ragweed, Ambrosia artemisiifolia L., was studied. Adults began appearing in late May and were most abundant during mid-June. A single egg was deposited per stem, usually in the basal third of the stem and the larva tunneled and fed upon the pith. The fully-grown larva overwintered in a state of temperature-induced quiescence within the stem. Pupation usually occurred during early May in the excavated stem. The beetle is univoltine in northeastern Ohio. The egg, larvae, and pupa of A. gracilis are described and/or illustrated for the first time.
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    Seasonal Rates of Vocalizations in Eastern Chipmunks
    (1978-11) Yahner, Richard H.
    Vocalizations in a population of eastern chipmunk, Tamias striatus, were studied from October 1973 to November 1976. Mean rates of vocalizations in the population peaked in late spring (May and June) and in autumn (October and November) coinciding with the dispersal and the recruitment of spring-born and summerborn juveniles, respectively, into the population. High rates in the spring peak were also attributed to the resumption of regular, post-torpor surface activity by all members of the population. High rates in the autumn peak resulted also from a pronounced increase in above-ground activity which was associated with larder hoarding.
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    Medical Ecology
    (1978-11) Vaughn, Charles M.
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    Front Matter
    (1978-11)