A preliminary study on the effects of line and selective thinning on bird communities in Hokkaido, northern Japan

Abstract

In Japan, selective thinning is a common thinning method, though line thinning receives much attention because of its economic merits. In this study, we examined effects of the two thinning methods on bird communities in Todo fir (Abies sachalinensis) plantations in Hokkaido, Japan. We surveyed bird species in forests under four different management types — unthinned, selectively thinned, line-thinned plantation, and naturally regenerated forest (here after referred to as natural forest) stands — using a line-transect method. We also investigated vegetation structure (canopy tree and understory) of these stands. Bird species richness did not differ between natural forests and plantations, while bird total abundance was greater in plantations than in natural forests. Bird species richness and total abundance were comparable among the three management types for plantations. Abundances of 10 bird species were different among the four management types, and five species were more abundant in line-thinned plantations. However, two species were more abundant in selectively thinned stands than in line-thinned stands, and they frequently appeared in natural forests. There were no distinct differences in vegetation structure among the management types for plantations. Our results suggest that line thinning could be beneficial for some bird species in plantations.

Keywords

line thinning / selective thinning / Todo fir (Abies sachalinensis) plantation / improved indicator species analysis / bird community

References

[1] Alldredge MW, Simons TR, Pollock KH. Factors affecting aural detections of songbirds. Ecol Appl, 2007, 17: 948-955.

[2] Bibby CJ, Burgess ND, Hill DA, Mustoe SH. Bird census techniques, 2000 Second ed. London: Academic Press, 302.

[3] De Ćaceres M, Jansen F. Indicspecies R package. Ver. 1.5.1, 2010

[4] De Ćaceres M, Legendre P, Moretti M. Improving indicator species analysis by combining group of sites. Oikos, 2010, 119: 1674-1684.

[5] Dufrêne M, Legendre P. Species assemblages and indicator species: The need for a flexible asymmetrical approach. Ecol Monogr, 1997, 67: 345-366.

[6] Forestry Agency of Japan. Existing forest resource as of 31ths March, 2007, 2007

[7] Forestry Agency of Japan. Annual Report on Trends in Forests and Forestry. 2010, Tokyo: Association of Agriculture & Forestry Statistics, 145.

[8] Forsman JT, Reunanen P, Jokimaki J, Monkkonen M. The effects of small-scale disturbance on forest birds: a meta-analysis. Can J For Res, 2010, 40: 1833-1842.

[9] Fujimaki Y. Examination of census period for shrub-grassland bird census during the breeding season in Hokkaido. Strix, 2011, 27: 1-5.

[10] Gibson L, Lee TM, Koh LP, Brook BW, Gardner TA, Barlow J, Peres CA, Bradshaw CJA, Laurance WF, Lovejoy TE, Sodhi NS. Primary forests are irreplaceable for sustaining tropical biodiversity. Nature, 2011, 478: 378-381.

[11] Hausner VH, Yoccoz NG, Ims RA. Selecting indicator traits for monitoring land use impacts: birds in northern coastal birch forests. Ecol Appl, 2003, 13: 999-1012.

[12] Hayes JP, Weikel JM, Huso MM. Response of birds to thinning young douglas-fir forests. Ecol Appl, 2003, 13: 1222-1232.

[13] Ishii HT, Maleque MA, Taniguchi S. Line thinning promotes stand growth and understory diversity in Japanese ceder (Cryptomeria japonica D.Don) plantations. J For Res, 2008, 13: 73-78.

[14] Kon H, Watanabe I, Yasaka M. Effect of thinning on the natural regeneration of broad-leaved trees in Abies sachalinensis plantations. J Jpn For Soc, 2007, 89: 395-400.

[15] Land D, Marion WR, O’meara TE. Snag availability and cavity nesting birds in slash pine plantations. J Wildl Manage, 1989, 53: 1165-1171.

[16] Larson AJ, Lutz JA, Gersonde RF, Franklin JF, Hietpas FF. Potential site productivity influences the rate of forest structural development. Ecol Appl, 2008, 18: 899-910.

[17] Lindenmayer DB, Hobbs RJ. Fauna conservation in Australian plantation forests: a review. Biol Conserv, 2004, 119: 151-168.

[18] MacArthur RH, MacArthur JW. On bird species diversity. Ecology, 1961, 42: 594-598.

[19] Mäkinen H, Isomäki A, Hongisto T. Effect of half-systematic and systematic thinning on the increment of Scots pine and Norway spruce in Finland. Forestry, 2006, 79: 103-121.

[20] Maleque MA, Ishii HT, Maeto K, Taniguchi S. Line thinning fosters the abundance and diversity of understory Hymenoptera (Insecta) in Japanese ceder (Cryptomeria japonica D. Don) plantations. J For Res, 2007, 12: 14-23.

[21] Murakami M, Hirao T, Iwamoto J, Oguma H. Effects of windthrow disturbance on a forest bird community depend on spatial scale. Basic Appl Ecol, 2008, 9: 762-770.

[22] Nájera A, Simonetti JA. Enhancing avifauna in commercial plantations. Conserv Biol, 2009, 24: 319-324.

[23] Nyland RD. Silviculture: concepts and applications, 2002 Second edition Boston: McGraw-Hill, 682.

[24] Ohsawa M. Species richness of Cerambycidae in larch plantations and natural broad-leaved forests of the central mountainous region of Japan. For Ecol Manage, 2004, 189: 375-385.

[25] Phillips DL, Shure DJ. Patch-size effects on early succession in southern Appalachian forests. Ecology, 1990, 71: 204-212.

[26] Robinson WD, Robinson SK. Effects of selective logging on forest bird populations in a fragmented landscape. Conserv Biol, 1999, 13: 58-66.

[27] Schieck J. Biased detection of bird vocalizations affects comparisons of bird abundance among forested hibitats. The Condor, 1997, 99: 179-190.

[28] Taki H, Inoue T, Tanaka H, Makihara H, Sueyoshi M, Isono M, Okabe K. Response of community structure, diversity, and abundance of understory plants and insect assemblages to thinning in plantations. For Ecol Manage, 2010, 259: 607-613.

[29] Tamada K. Relationship between census efforts and the number of species encountered in line transect censuses of breeding bird populations in woodland and grassland habitats of eastern Hokkaido. Ornithological Science, 2010, 9: 55-65.

[30] Tubelis DP, Lindenmayer DB, Cowling A. Novel patch matrix interactions: patch width influences matrix use by birds. Oikos, 2004, 107: 634-644.

[31] Wang G, Liu F. The influence of gap creation on the regeneration of Pinus tabuliformis planted forest and its role in the near-natural cultivation strategy for planted forest management. For Ecol Manage, 2011, 262: 413-423.

[32] Wiens JA. The ecology of bird communities. Volume 1. Foundations and patterns. 1989, Cambridge: Cambridge University Press, 539.

[33] Yamaura Y, Amano T, Katoh K. Ecological traits determine the affinity of birds to a larch plantation matrix, in montane Nagano, central Japan. Ecol Res, 2008, 23: 317-327.

[34] Yamaura Y, Ikeno S, Sano M, Okabe K, Ozaki K. Bird responses to broad-leaved forest patch area in a plantation landscape across seasons. Biol Conserv, 2009, 142: 2155-2165.

[35] Yamaura Y, Katoh K, Fujita G, Higuchi H. The effects of landscape contexts on wintering bird communities in rural Japan. For Ecol Manage, 2005, 216: 187-200.

[36] Yamaura Y, Katoh K, Takahashi T. Effects of stand, landscape, and spatial variables on bird communities in larch plantations and deciduous forests in central Japan. Can J For Res, 2008, 38: 1223-1243.