SUMBER BELAJAR EKOLOGI : POLA KONSUMSI TIKUS SAWAH (Ratlus argentiventer Rob. Kloss)PADA PERSAWAHAN TANAM TIDAK SEREMPAKudECOLOGICAL LEARNING MATERIAL: (THE DIET OF RICE-FIELD RATS (Rattus argentiventer Rob. Kloss) TOWARD UNSYNCHRONIZED PLANTING SYSTEM OF PADDY FIELD)

摘要

This is the reseqrch about the diet of rice-field rats lived in unsynchronized planting system ofudpaddy field, a condition when paddy field are heterogenous in term of stages. At that kind of field,udcarbohydrate supplies, in a.form of booting to harvesting of paddy are available at all the time. Thatudcondition gives benefit to the rats, since those stages supply the most preference diet and also supply audtot food that act as the main factor supporl its reproduction . The prefference of that best supporting-udfood for reproduction were proved by the presence of it and the prevalence of reproductionudrespectively. The results of thi,t research can be use as an ecological learning material for he whoudwants to study about eco-physiologt.udThis research was caruied out qt all stages of rice plant toward unsynchronized plantingudsystem of paddy field of Sukoharjo. Some systemalic steps of this research were catching the rat byudusing the linear trap batier system (LTBS)and by using the fumigation, delermine its reproductiveudstate which was according to Allen (1920), identify the diet by ventriculus analysis and then giveudanalyze to the data .udVentriculus analysis showed that rice-field rat prefers to consume the energt-rich food in audform of booting to harvesting paddy stages in every stage, of rice. That pattern offood consumptionudwill trigger its reproduction respectively, thus, the reproduction occur continuously. At that case,udcarbohydrate can be guess as proximate and ultimate limiting factors that lead the reproduction toudoccur. That eco-physiologt phenomenon showed the effect of environment toward the physiologt andudbehavior of organism. That's the ecological material to learn.udKey words: Rice-field rats, diet, unsynchronized planting system, ecological learning material