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이은옥,김영건,Shoei Sugita 한국조류학회II 2019 한국조류학회지 Vol.26 No.2
Fruit damage by magpies (Pica pica) is increasing in Korea. We focused on the relationship between oil droplets in magpie retinas and ultraviolet wavelength (UV) reflection from the surface of fruits (pears, apples, grapes, blueberries and persimmons). Birds have colored oil droplets that filter the light, five types of oil droplets (red, orange, yellow-greenish, clear, and transparent) were found in magpie retinas (n=6) and UV wavelengths passed through the transparent oil droplets. We measured the reflection from the surface of fruits based on whether they had blooms (white, waxy and powdery substance on the fruit surface) on their surfaces. The reflection was higher in fruits with blooms than in fruit without blooms. We suggest that we first understand the reflection of the fruits and then control the visual abilities of the magpies, it could be it could be helpful to manage fruit damage.
Species Identification Key of Korean Mammal Hair
LEE, Eunok,CHOI, Tae-Young,WOO, Donggul,MIN, Mi-Sook,SUGITA, Shoei,LEE, Hang The Japanese Society of Veterinary Science 2014 The Journal of veterinary medical science Vol.76 No.5
<P><B>ABSTRACT</B></P><P>The hair microstructures of Korean terrestrial mammals from 23 species (22 wild and one domestic) were analyzed using light and scanning electron microscopy (SEM) to construct a hair identification key. The hairs were examined using the medulla structures and cuticular scales of guard hairs from the dorsal regions of mature adult animals. All cuticular scale structures in the hair of Rodentia, Lagomorpha, Carnivora and Insectivora showed the petal pattern, and those of Artiodactyla and Chiroptera showed the wave pattern and coronal pattern, respectively. Rodentia, Lagomorpha and Carnivora showed multicellular, and Insectivora and Artiodactyla showed unicellular regular, mesh or columnar in the medulla structures, respectively. Chiroptera did not show the medulla structures in their hair. We found that it is possible to distinguish between species and order based on general appearance, medulla structures and cuticular scales. Thus, we constructed a hair identification key with morphological characteristics from each species. This study suggests that hair identification keys could be useful in fields, such as forensic science, food safety and foraging ecology.</P>