INTRODUKSI BURUNG BENTET KELABU Laniusschach Linn. DARI YOGYAKARTA KE SULAWESI UTARA UNTUK PENGENDALIAN HAYATI HAMA Sexava nubila Stal. PADA PERTANAMAN KELAPA
| Main Authors: | , Fredy Lala, , Prof. Dr. Ir. Fransiscus Xaverius Wagiman, S.U. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2014
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/131055/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=71496 |
Daftar Isi:
- The coconutas acompetitive commoditiesin North Sulawesi was constrained by attack Sexava spp. The research aims to (1) Know characteristic habitat of Long-Tailed Shrike L. schach in Tanjungsari and Moronge, (2) Evaluate the establishment of Long-Tailed Shrike L. schach in destination habitat, (3) Evaluate the impact of the introduction of L. schach to population of S. nubila and damage intensity of coconut palm leaves. The observations on vegetation and insect were conducted using a combination of path sand terraced line methods. Vegetation and insect diversity was calculated by Shannon index (H'), the similarity of two habitats was measured through similarity index (IS). Populations, dispersal, and the emergence of a new progeny of Long-Tailed Shrike L. schach was observed directly by the transect. Populations of S. nubila and damage intensity on coconut leaves was observed at 120 coconut trees sampled one month before and 10 months consecutive after release of L. schach. The results showed the diversity of insects in the origin habitat 2,57 where as in the destination habitat 2,87. The similarity index of vegetation and insects between origin and destination habitats are 19-25% and 29%. Within three months after the release, 20 out of the 40 individuals of the Long tailed shrike were rediscovered, It has been dispersed as far as 6-15 km from the release site, and found two young L. schach. The average population of S. nubilaat 10 months after release (21.05 individuals/tree) was significantly lower than at one month before the release (23.65 individuals/tree). The moderate and severe damage intensity turned into light within three and five months after the release of L. schach.