Respons Fungsional Burung Pentet (Lanius sp.) terhadap Belalang Kembara (Locusta migratoria manilensis)

https://doi.org/10.22146/jpti.11771

Siti Astuti(1*), Kasumbogo Untung(2), F. X. Wagiman(3)

(1) Sekolah Tinggi Penyuuh Pertanian Yogyakarta
(2) Fakultas Pertanian Unersitas Gadjah Mada
(3) Fakultas Pertanian Unersitas Gadjah Mada
(*) Corresponding Author

Abstract


The functional response of predatory bird, Lanius sp. (Passeriformes: Laniidae) on migratory locust [Locusta migratoria manilensis (Orthoptera: Acrididae)] had been studied under restricted condition. The migratory locusts were reared in the green house. Second and fourth nymph instars along with adult stages of the migratory locust were used in this trial. Maximum feeding and functional response of the predatory bird against the migratory locust were determined. Research protocol used follows Holling’s model. Results showed that the maximum feeding of the predatory bird was very high i.e. against 2nd and 4th instars and adult of the locust were 2.75 preys/minute, 0.13 preys/minute, and 0.09 preys/minute; respectively. The relationship between predatory bird and migratory locust fitted with the Holling’ s type 2 functional response. The high feeding rate of the predatory bird revealed that the bird is a promising candidate of biological control agent on migratory locust.

 

Penelitian respons fungsional burung predator jenis pentet, Lanius sp. (Passeriformes: Laniidae) terhadap belalang kembara Locusta migratoria manilensis (Orthoptera: Acrididae) telah dilakukan secara terbatas di laboratorium. Belalang kembara dibiakkan secara massal di rumah kaca. Belalang kembara yang dipakai dalam penelitian adalah nimfa instar 2, 4, dan imago umur 1 hari setelah ganti kulit. Penelitian antara lain menentukan kemampuan memangsa maksimum dan analisis respons fungsional. Prosedur kerja penelitian mengikuti prosedur model Holling. Hasil pengujian menunjukkan bahwa kemampuan memangsa burung pentet terhadap belalang kembara sangat tinggi; terhadap instar 2 , 4 dan imago masing-masing 2,75 ekor/menit, 0,13 ekor/menit, dan 0,09 ekor/menit. Respons fungsional burung pentet terhadap belalang kembara mengikuti respons fungsional Holling tipe 2. Daya makan yang tinggi menunjukkan bahwa burung pentet berpotensi sebagai agens pengendalian hayati belalang kembara.


Keywords


functional response; Lanius sp.; Locusta migratoria manilensis; respons fungsional

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DOI: https://doi.org/10.22146/jpti.11771

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