Pacific Science Volume 39, Number 4, 1985

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Pacific Science is a quarterly publication devoted to the biological and physical sciences of the Pacific Region.


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    39: Index - Pacific Science
    (University of Hawai'i Press, 1985)
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    39:4 Table of Contents - Pacific Science
    (University of Hawai'i Press, 1985-10)
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    The Common Occurrence of Oegopsid Squid Eggs in Near-Surface Oceanic Waters
    (University of Hawai'i Press, 1985-10) Young, Richard Edward ; Harman, Robert F. ; Mangold, Katharina M.
    A variety of egg types removed from near-surface plankton tows off Hawaii developed into young squids. Previously, the eggs of pelagic, oceanic squids were virtually unknown. Over 90% of these near-surface plankton tows taken with a l-m net contained squid eggs. About 90% of the eggs were collected in the upper 100m with most of these coming from the mixed layer. The eggs were separate rather than in masses. Two egg types have been identified. One belongs to the Enoploteuthinae, which are thought to spawn individual eggs. The other belongs to the Brachioteuthidae, whose spawning mode is unknown. Most squids are thought to deposit eggs in masses. Estimates, based on the abundance of the captured eggs, indicate that the chances of sampling an intact egg mass with a plankton net are small.
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    Role of Alien and Native Birds in the Dissemination of Firetree (Myricafaya Ait.-Myriacaceae) and Associated Plants in Hawaii
    (University of Hawai'i Press, 1985-10) LaRosa, Anne M. ; Smith, Clifford W. ; Gardner, Donald E.
    The food habits of several forest birds and their potential role in the dispersal of firetree (Myrica faya) were studied in two areas of Hawaii Volcanoes National Park. Observations were made during peak firetree fruiting (October-November 1983) in areas where 'ohi'a (Metrosideros polymorpha) and firetree are codominant. Both native and introduced birds foraged in firetree and 'ohi' a, but introduced birds were more common in firetree. Ofthe six bird species observed, 'oma'o (Phaeornis obscurus) and house finches (Carpodacus mexicanus) were the principal dispersal agents in the areas studied, while the common 'amakihi (Hemignathus virens) was secondarily important. Japanese white-eyes (Zosterops japonicus), though feeding on the fruit, rarely ingested the seed. 'Apapane (Himatione sanguinea) and Northern American cardinals (Cardinalis cardinalis) were not observed eating firetree fruit. Germination rates and successes of several native and alien species are generally unaffected by passage through the digestive tracts of captive Japanese white-eyes and common mynas (Acridotheres tristis).
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