./ +*.*,**0 / +* We surveyed the utilization of nest boxes by birds and small mammals in a windbreak forest

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1 --,**2 * * A 1+ B / +* *,**0 / +*, / * A B A B Summary Use of nest boxes by birds and small mammals in a windbreak forest in the Tokachi area of Hokkaido, Japan Rie TOJO and Hisashi YANAGAWA (Laboratory of Wildlife Ecology, Obihiro University of Agriculture and Veterinary Medicine ; HY : Corresponding auther) J Jpn Wildl Res Soc -- : + 0 (,**2) We surveyed the utilization of nest boxes by birds and small mammals in a windbreak forest in Tokachi, Hokkaido We set up * boxes at two test sites with di# erent types of trees : Site A had 1+ -year-old oaks ( Quercus dentata) and Site B had /-year-old white birches ( Betula papyrifera) We put,* boxes at each test site : +* in the trees along the outer edge of the strip-shaped site and +* in the trees along the inner edge of the site The test was conducted from May to October,**0 Four bird species ( Passer rutilans, Parus ater, Parus major and Dendrocopos major) and two mammals ( Pteromys volans orii and Plecotus auritus) used the boxes mostly from May to June, in the breeding season Dendrocopos major used the boxes as a roost throughout the test period, with the most frequent use in July The mammals used the boxes only during the daytime, as dens There was increased use in August by P volans orii and use in September and October by Plecotusan auritus Parus ater and P major, which used only the boxes at Site A, while P rutilans mostly used the boxes at site B that were not used by P ater and P major Pteromys volans orii used the boxes at Site A more often than those at Site B Key words : Nest box, Dendrocopos major, Parus ater, Passer rutilans, Plecotus auritus, Pteromys volans orii,** +333 Konno Hinsley,***,**,,**,**0,**0,** * 1

2 J Jpn Wildl Res Soc --,**2 -/ m,,* m, / m +, cm, + cm, +2 cm cm cm McComb and Nable ,**0 /,**0 +*,**/ / + 0 Panasonic DMC-FX-* -/,, N +-3E ; - : 0- *+, - 1* m,,,* m, A B + A Larix leptolepis, +** Quercus dentate B Vespa spp, Vespula spp Betula platyphylla var japonica / 1+, Pearson c DBH A -*- +* + cm, B,+/ 1 A B cm B A Mann-Whitney U : U11 * P* **+, Pearson c A B,, A 13 / m ha, B -2* m ha A +** ha A B +*, *,**0 + Passer rutilans, + 2

3 --,**2 + Parus ater, Parus major, Dendrocopos major Pteromys volans orii, Plecotus auritus +, / ,, / 0,, - A B 2 + ; p****+ ; p**, B A p**/ p**+ A -, 3 +* + + A B AB - p* */

4 J Jpn Wildl Res Soc --,**2 Sitta europaea, Murina hilgendorfi, Nyctalus avitator, Apodemus argenteus, Sciurus vulgaris orientis +,** Mori,**/ A B 1 + A AB B B 0,**- DBH 1 +* * A ++,**- +33,** ,** 1 / 0, / 3 +/ / +2 A,/ Glaucomys volans A Taulman +333 G sabrinus +33- DBH Parus varius Carey et al +331 B DBH A, 4

5 --,**2 C : +1/2*,+* +323,3 : -1 2,**/ / : +0/ +10,**0 / : /10 Carey, AB, Wilson, TM, Maguire, CC and Biswell, BL, +331, Dens of northern flying squirrels in the Pacific north- west J Wildl Manage 0+ : ,/ pp : +/ Strix + : 3/ +*/ Hinsley, SA,*** The costs of multiple patch use by birds Landscape Ecology +/ : 10/ 11/ Konno, Y,,**,, Present status of remnant forest in Obihiro, eastern Hokkaido, Japan Global perspective in forest conservation and sustainable agriculture The organizing com- mittee of OASERD : -3 0,**- Pteromys volans orii, : /30, McComb, WC and Nable, RE, +32+, Nest-box and naturalcavity use in three mid-south forest habitats J Wildl Manage / : 3- +*+ Mori, S,,**/, Foraging habitat use by the Great Spotted Woodpecker Dendrocopos major in a fragmented forest landscape Ornithological Science : , Taulman, JF, +333, Selection of nest trees by southern flying squirrels (Sciuridae : Glaucomys volans) in Arkansas J Zool, Lond,2 : ,** GIS 1, : -1 *,** : /3,**0 +* : 031+,**- 3 pp +33- Strix +, : ,+ :,*,, : ,**0 0 -, : /+* 5

6 J Jpn Wildl Res Soc --,**2 + 6