Science in New Guinea, Volumes 11-12University of Papua New Guinea., 1985 - Natural history |
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The snails were classified as either not damaged , dainaged but not killed ( shell broken but animal not harmed ) ... If a particular crab failed to damage any shells for several consecutive days , a juvenile Strombus gibberulus L. was ...
The snails were classified as either not damaged , dainaged but not killed ( shell broken but animal not harmed ) ... If a particular crab failed to damage any shells for several consecutive days , a juvenile Strombus gibberulus L. was ...
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On seven occasions ( 1 , 8 , 22 March , 26 April , 31 May ) jassid damage to plants recorded according to the following scale : 0 = total defoliation due to jassid attack 1 = more than 50 % of leaves with jassid burn 2 = 25-50 % of ...
On seven occasions ( 1 , 8 , 22 March , 26 April , 31 May ) jassid damage to plants recorded according to the following scale : 0 = total defoliation due to jassid attack 1 = more than 50 % of leaves with jassid burn 2 = 25-50 % of ...
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then support more jassids than badly damaged plants . This disturbs a basic assumption of the sampling method , that all plants have an equal number of ' medium sized ' leaves for adults to feed on . Once this happens , the counting of ...
then support more jassids than badly damaged plants . This disturbs a basic assumption of the sampling method , that all plants have an equal number of ' medium sized ' leaves for adults to feed on . Once this happens , the counting of ...
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Contents
Ascorbic acid content of some Papua New Guinean | 1 |
The potential use of modern geodetic methods for geophysical | 19 |
A short note on yields of forty one varieties of aibika | 39 |
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Common terms and phrases
acid analysis animals Australian base Chemical chemistry collected Common concentrations coral course damage Department depth described detail determined distribution East Education effect end of island examination Family Figure fish Fly River forest formal fronds fruit garden given Grade habitats High School hospital important indicate infection intertidal Journal leaf leaves length Linnaeus mangrove material mean measured mercury methods natural noted observed occur operations Papua New Guinea parasite period plants possible present problems Province published range Rare recorded reef REFERENCES region Research River rock sample sand seagrass shallow subtidal shell showed side of island significant South species specimens survey Table Teachers teaching Technology terraces topics transects trees Uncommon University of Papua UPNG varieties vegetables west side yield zone