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In the Toolik Lake region of arctic Alaska, ponds contain one of two distinct zooplankton communities. Small ponds are typically dominated by Daphnia pulex and medium and large ponds are typically dominated by the larger daphnid, Daphnia middendorffiana. An invertebrate predator, Heterocope septentr...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.632.5484 2023-05-15T15:02:40+02:00 Approved by Predator Heterocope Septentrionalis Melinda E. Burris The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.632.5484 http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.632.5484 http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf text 2006 ftciteseerx 2016-01-08T15:33:00Z In the Toolik Lake region of arctic Alaska, ponds contain one of two distinct zooplankton communities. Small ponds are typically dominated by Daphnia pulex and medium and large ponds are typically dominated by the larger daphnid, Daphnia middendorffiana. An invertebrate predator, Heterocope septentrionalis, exists in the medium and large ponds with D. middendorffiana. D. pulex were exposed to Heterocope kairomone in laboratory and in situ experiments in an effort to explain why these two species do not coexist in nature. An increase in average egg number per brood was observed when D. pulex were exposed to predator kairomone both in laboratory and in situ studies. In laboratory studies, D. pulex increased size at 24 hours old in response to Heterocope kairomone. Behavioral changes, such as an alternation in vertical position, were not observed when D. pulex and D. middendorffiana were exposed to predator kairomones. Text Arctic Zooplankton Alaska Unknown Arctic |
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English |
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In the Toolik Lake region of arctic Alaska, ponds contain one of two distinct zooplankton communities. Small ponds are typically dominated by Daphnia pulex and medium and large ponds are typically dominated by the larger daphnid, Daphnia middendorffiana. An invertebrate predator, Heterocope septentrionalis, exists in the medium and large ponds with D. middendorffiana. D. pulex were exposed to Heterocope kairomone in laboratory and in situ experiments in an effort to explain why these two species do not coexist in nature. An increase in average egg number per brood was observed when D. pulex were exposed to predator kairomone both in laboratory and in situ studies. In laboratory studies, D. pulex increased size at 24 hours old in response to Heterocope kairomone. Behavioral changes, such as an alternation in vertical position, were not observed when D. pulex and D. middendorffiana were exposed to predator kairomones. |
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The Pennsylvania State University CiteSeerX Archives |
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Text |
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Predator Heterocope Septentrionalis Melinda E. Burris |
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Predator Heterocope Septentrionalis Melinda E. Burris Approved by |
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Predator Heterocope Septentrionalis Melinda E. Burris |
author_sort |
Predator Heterocope Septentrionalis |
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Approved by |
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publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.632.5484 http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf |
geographic |
Arctic |
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Arctic |
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Arctic Zooplankton Alaska |
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Arctic Zooplankton Alaska |
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http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.632.5484 http://libres.uncg.edu/edocs/etd/1252/umi-uncg-1252.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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