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Freshwater investigations on Apid Island, Inopacan, Leyte, Philippines: results of lithotelmic investigation

Volume 21 Special Issue 1999 / By

Hendrik Freitag1 , Erika Zahn2 and Friedhelm Goeltenboth2 ABSTRACT Preliminary investigations of some of the numerous lithotelmata found in the limestone area of Apid Island off the west coast of Leyte revealed the following factshow – The majority of these lithotelmata are semi-permanent. – They are partly used for human activities like washing, influencing both …

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Agricultural land use system on Apid Island, Inopacan, Leyte, Philippines

Volume 21 Special Issue 1999 / By

Ruth O. Escasinas1 and Joachim Sauerborn2 ABSTRACT Characterization of agricultural land use systems on Apid Island was done in order to understand the agroecosystem and its impact on the ecology of the Island. Of the total land area only a small portion is planted to cash crops. Pandanus sp. Seems to be the major cash …

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The terrestrial fauna of Apid Island, Inopacan, Leyte, Philippines

Volume 21 Special Issue 1999 / By

Christopher Allgaier1, Frank Schaefer1, Maria Juliet C. Ceniza2 and Konrad Martin1 ABSTRACT The terrestrial fauna of Apid Island in different types of habitat (mainly agricultural) was studied by sweep-netting of arthropods; hand sampling of species living on the ground and by visual observations. Results showed that the island is relatively species-poor compared to an area …

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Flora of Apid Island, Inocapan, Leyte, Philippines

Volume 21 Special Issue 1999 / By

Mylene Napiza1, Sibyll Eisenberger2, Jan Grenz3, Gerhard Langenberger4 and Joachim Sauerborn2 ABSTRACT The study was conducted to determine the floristic composition of Apid Island and describe the plants’ growth habits and life forms. Three ecological “sub-units” were identified and compared using the Index of Similarity. A total of 105 plant species representing 39 families was …

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Geomorphology and soils of Apid Island, Inopacan, Leyte, Philippines

Volume 21 Special Issue 1999 / By

Jan Grenz1, Sandra Zukunft2 and Victor B. Asio3 ABSTRACT The island of Apid was most probably formed during the Upper Pleistocene as a barrier reef resting on volcanic rock. Two main types of soil can be found there: Rendzic Leptosols in the rocky interior and Arenosols on the sandy beach. Soil sample taken on the …

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Ecology of Mosquitos in a Philippine Community

Volume 1 No. 1 July - Septermber 1979 / By

Paciencia P. Milan ABSTRACT The mosquito fauna of the Visayas State College of Agriculture, Baybay, Leyte was assessed in nine survey stations. In the eight-month survey, 25 species belonging to eight genera were identified. A total of 1,539 mosquitoes were collected; Aedes albopictus was the most abundant and prevalent species. Armigeres and Toxorhynchites were abundant …

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Biology and Feeding Preference of Tobacco Budworm, Helicoverpa assulta (Guenee)

Volume 1 No. 1 July - Septermber 1979 / By

L.B. de Pedro and B. Morallo-Rejesus ABSTRACT The mean life cycle of tobacco budwom, Helicoverpa assulta (Guenee), reared in the laboratory on artificial diet is 48 days. Copulation started three to four days after emergence. Oviposition started one day after mating with peaks on the fifth to seventh day. A female can lay an average …

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Survey and Identification of Plant Parasitic Nematodes Associated with Sweet Potato and Cassava

Volume 1 No. 1 July - Septermber 1979 / By

Ruben M. Gapasin ABSTRACT A survey of plant parasitic nematodes associated with sweet potato and cassava was conducted during the dry and rainy seasons of 1977 in 30 municipalities in two provinces of Leyte, Philippines. A total of 430 and 275 soil samples were gathered from sweet potato and cassava fields, respectively. Thirteen genera and …

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Effect of Defoliation, Runner Removal, and Fertilization on Tuber Yield of Taro

Volume 1 No. 1 July - Septermber 1979 / By

Sergio E. Abit and Arturo C. Alferez ABSTRACT Three degrees of defoliation (light, medium, and heavy), removal and non-removal of runners and three levels of complete fertilizers were studied on taro cv. Kalpao under lowland conditions. Light defoliation treatment did not affect the leaf area index but increased plant height at maturity, size of tubers, …

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Mass Media Habits of Rural People in a Philippine Municipality

Volume 1 No. 1 July - Septermber 1979 / By

G.T Sadsad ABSTRACT Two-hundred-fifty rural household members from Lucban, Quezon, Philippines were interviewed to determine their mass media habits, the relationship between selected demographic characteristics and their mass media habits, their attitudes towards the mass media and, on the basis of the findings, draw out guidelines for reaching rural people through the mass media more …

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