Results of the point-frame (PF) method and the frequency (FR) method were compared by use of 340 fecal samples of the raccoon dog (Nyctereutes orocyonoides) collected in the western suburb of Tokyo, Japan. The fecal contents were categorized into 63 food categories. Proportion of each food category to the fecal composition (P%) and frequency (F%) were determined. Twelve food categories whose P% were >2% were selected as “important food categories”. Their annual F% ranged from 5.9% (potato) to 64.8% (monocot leaves). The high F% and great P% type included monocot leaves and insects. The high F% and small P% type included forb leaves and browse leaves which are frequently available but not preferably utilized by the raccoon dog. The low F% and great P% type included mushroom and gingko nut. These foods are seasonal and preferably utilized by the raccoon dog. Other 6 categories had low F% and small P%. The PF method is advantageous in that it is precise, time-saving, and provides FR as well. Synthetic use of both F% and P% by the PF method is recommended, because the combination of P% and F% provides the ecological significance of the characters of foods and F% evaluation without P% or based on a small sample size is imprecise or less informative.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.