【摘 要】
：
The diet of Common Kestrels Falco tinnunculus was studied during the breeding seasons from 2004 to 2008 in Northeast China. Diet was determined by direct observ
【机 构】
：
School of Life Sciences,Institute of Zoology
论文部分内容阅读
The diet of Common Kestrels Falco tinnunculus was studied during the breeding seasons from 2004 to 2008 in Northeast China. Diet was determined by direct observation of the prey brought to nests, and analysis of prey remains collected from nests. Fifteen vertebrate species from three classes, and two groups of insects were identified as prey items. Rodents were the main prey items, comprising 93.9% of the total prey items (TPI) and 97.0% of total prey biomass (TPB). Birds, frogs and insects were also eaten. The kestrels preferred to prey on small rodents (mean weight 20-40 g) and displayed density-dependent prey selection. Daily prey consumption of an adult and a nestling was 2.6 individual rodents or 87.6 g, and 1.7 individual vertebrates or 48.2 g, respectively. The estimated prey consumption of a breeding pair (adults and nestlings) during the breeding season was 520.1 individual vertebrates or 19.7 kg.
其他文献
关于高中政治的教学方法多种多样，不仅仅只是参与性教学这一种，只有多种教学方法齐头并进发挥各自优势，才能给学生呈现精彩的课堂氛围。但是也要清楚知道，教学过程永远是实质大于
This paper is concerned with the problem of robust H_∞ filtering for discrete-time switched linear systems with polytopic uncertainties in the finite frequency
The Upper Cretaceous dinosaur egg-beating deposits in Henan Province, central China are divided into three formations in ascending order: Gaogou, Majiacun and S
The amphiphilic peptide is becoming attractive as a potential drug carder to improve the dissolvability of hydrophobic drugs in an aqueous system; thus, facilit
Biomarker identification and cancer classification are two important procedures in microarray data analysis. We propose a novel uni-fied method to carry out bot
Iron deficiency can induce cyanobacteria to synthesize siderophore receptor proteins on the outer membrane to enhance the uptake of iron. In this study, an oute
Part of the C-terminal of rice phytochrome B was used as bait to screen a cDNA library constructed from young rice panicles in a yeast two-hybrid screening. A p
The relative changes between shear and compressional velocities (R_(SP)=(e)ln V_S/(e)ln V_P), bulk sound and shear velocities (R_(CS)=(e)ln V_C/(e)ln V_S), and