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Volumn 19, Issue 5, 2008, Pages 633-644

Observer bias and random variation in vegetation monitoring data

Author keywords

Forest; Observer error; Permanent plot; Statistical power; Sweden

Indexed keywords

ABUNDANCE; BOREAL FOREST; DETECTION METHOD; ENVIRONMENTAL MONITORING; QUALITATIVE ANALYSIS; SPECIES OCCURRENCE; VEGETATION COVER; VISUAL ANALYSIS;

EID: 59649117006     PISSN: 11009233     EISSN: None     Source Type: Journal    
DOI: 10.3170/2008-8-18423     Document Type: Article
Times cited : (97)

References (48)
  • 1
    • 59649128500 scopus 로고
    • accessed October 2007, Anon
    • Anon. 1983-2002. Ståndortskarteringens databas, SKBAS. http://www-sml.slu.se/sk/skbas.pdf (accessed October 2007).
    • (1983) Ståndortskarteringens databas, SKBAS
  • 3
    • 59649086926 scopus 로고    scopus 로고
    • Swedish Forest Soil Inventory, accessed October 2007, Anon
    • Anon. 2007. Markinventeringen, RIS-MI. Swedish Forest Soil Inventory, http://www-markinventeringen.slu.se. (accessed October 2007).
    • (2007) Markinventeringen, RIS-MI
  • 4
    • 33746922358 scopus 로고    scopus 로고
    • Effects of sampling time, species richness and observer on the exhaustiveness of plant censuses
    • Archaux, F., Gosselin, F., Berges, L. & Chevalier, R. 2006. Effects of sampling time, species richness and observer on the exhaustiveness of plant censuses. Journal of Vegetation Science 17: 299-306.
    • (2006) Journal of Vegetation Science , vol.17 , pp. 299-306
    • Archaux, F.1    Gosselin, F.2    Berges, L.3    Chevalier, R.4
  • 5
    • 1542685174 scopus 로고    scopus 로고
    • Phenological changes within a growth season in two semi-natural pastures in southern Sweden
    • Bergfur, J., Carlsson, A.L.M. & Milberg, P. 2004. Phenological changes within a growth season in two semi-natural pastures in southern Sweden. Annales Botanici Fennici 41: 15-25.
    • (2004) Annales Botanici Fennici , vol.41 , pp. 15-25
    • Bergfur, J.1    Carlsson, A.L.M.2    Milberg, P.3
  • 6
    • 0028811739 scopus 로고
    • Comparison of field methods in vegetation monitoring
    • Bråkenhielm, S. & Liu, Q. 1995. Comparison of field methods in vegetation monitoring. Water, Air and Soil Pollution 79: 75-87.
    • (1995) Water, Air and Soil Pollution , vol.79 , pp. 75-87
    • Bråkenhielm, S.1    Liu, Q.2
  • 8
    • 18444372628 scopus 로고    scopus 로고
    • Comparison of data from two vegetation monitoring methods in semi-natural grasslands
    • Carlsson, A.L.M., Bergfur, J. & Milberg, P. 2005. Comparison of data from two vegetation monitoring methods in semi-natural grasslands. Environmental Monitoring and Assessment 100: 235-248.
    • (2005) Environmental Monitoring and Assessment , vol.100 , pp. 235-248
    • Carlsson, A.L.M.1    Bergfur, J.2    Milberg, P.3
  • 10
    • 59649084696 scopus 로고    scopus 로고
    • Elzinga, C.L., Valzer, D.W. & Willoughby, J.W. 1998. Measuring and monitoring plant populations. Bureau of Land Management, Denver, Colorado, USA. BLM/RS/ST-98/005+1730. http://www.blm.gov/nstc/library/pdf/MeasAndMon.pdf (accessed October 2007).
    • Elzinga, C.L., Valzer, D.W. & Willoughby, J.W. 1998. Measuring and monitoring plant populations. Bureau of Land Management, Denver, Colorado, USA. BLM/RS/ST-98/005+1730. http://www.blm.gov/nstc/library/pdf/MeasAndMon.pdf (accessed October 2007).
  • 11
    • 59649121985 scopus 로고    scopus 로고
    • Design and evaluation of a computer aided calibration program for visual estimation of vegetation cover
    • accessed October 2007
    • Gallegos, Å. 2005. Design and evaluation of a computer aided calibration program for visual estimation of vegetation cover. SLU, Institutionen for skoglig resurshushållning och geomatik, Arbetsrapport 142. www.resgeom.slu.se/resana/NILS/Publikationer/arb-rapp-142.pdf (accessed October 2007).
    • (2005) SLU, Institutionen for skoglig resurshushållning och geomatik, Arbetsrapport , vol.142
    • Gallegos, A.1
  • 12
    • 0022230924 scopus 로고
    • The impact of observer bias on multivariate analyses of vegetation structure
    • Gotfryd, A. & Hansell, R.I.C. 1985. The impact of observer bias on multivariate analyses of vegetation structure. Oikos 45: 223-234.
    • (1985) Oikos , vol.45 , pp. 223-234
    • Gotfryd, A.1    Hansell, R.I.C.2
  • 13
    • 12244262288 scopus 로고    scopus 로고
    • Repeatability and implementation of a forest vegetation indicator
    • Gray, A.N. & Azuma, D.L. 2005. Repeatability and implementation of a forest vegetation indicator. Ecological Indicators 5: 57-71.
    • (2005) Ecological Indicators , vol.5 , pp. 57-71
    • Gray, A.N.1    Azuma, D.L.2
  • 14
    • 59649103687 scopus 로고    scopus 로고
    • Hägglund, B. 1985. En ny svensk riksskogstaxering. Report 37, Department of Forest Survey, Swedish University of Agricultural Sciences, Umeå, SE. (In Swedish with English summary.)
    • Hägglund, B. 1985. En ny svensk riksskogstaxering. Report 37, Department of Forest Survey, Swedish University of Agricultural Sciences, Umeå, SE. (In Swedish with English summary.)
  • 16
    • 0013451172 scopus 로고
    • On the errors in the ordinary use of subjective frequency estimations in grassland
    • Hope-Simpson, J.F. 1940. On the errors in the ordinary use of subjective frequency estimations in grassland. Journal of Ecology 28: 193-209.
    • (1940) Journal of Ecology , vol.28 , pp. 193-209
    • Hope-Simpson, J.F.1
  • 17
    • 0024196276 scopus 로고
    • Evaluation of the point intercept method for the estimation of plant biomass
    • Jonasson, S. 1988. Evaluation of the point intercept method for the estimation of plant biomass. Oikos 52: 101-106.
    • (1988) Oikos , vol.52 , pp. 101-106
    • Jonasson, S.1
  • 18
    • 0031400237 scopus 로고    scopus 로고
    • Förteckning över svenska kärlväxter.
    • In Swedish with English summary
    • Karlsson, T. 1998. Förteckning över svenska kärlväxter. Svensk Botanisk Tidskrift 91: 241-560 (In Swedish with English summary.)
    • (1998) Svensk Botanisk Tidskrift , vol.91 , pp. 241-560
    • Karlsson, T.1
  • 19
    • 0023516355 scopus 로고
    • Some considerations for the use of visual estimates of plant cover in biomonitoring
    • Kennedy, K. A. & Addison, P.A. 1987. Some considerations for the use of visual estimates of plant cover in biomonitoring. Journal of Ecology 75: 151-157.
    • (1987) Journal of Ecology , vol.75 , pp. 151-157
    • Kennedy, K.A.1    Addison, P.A.2
  • 20
    • 0003440577 scopus 로고
    • Vegetation description and analysis
    • John Wiley and Sons, Chichester, UK
    • Kent, M. & Coker, P. 1992. Vegetation description and analysis. A practical approach. John Wiley and Sons, Chichester, UK.
    • (1992) A practical approach
    • Kent, M.1    Coker, P.2
  • 21
    • 1142293937 scopus 로고    scopus 로고
    • Effects of sampling teams and estimation methods on the assessment of plant cover
    • Kercher, S.M., Frieswyk, C.B. & Zedler, J.B. 2003. Effects of sampling teams and estimation methods on the assessment of plant cover. Journal of Vegetation Science 14: 899-906.
    • (2003) Journal of Vegetation Science , vol.14 , pp. 899-906
    • Kercher, S.M.1    Frieswyk, C.B.2    Zedler, J.B.3
  • 22
    • 33746713031 scopus 로고    scopus 로고
    • How biased are estimates of extinction probability in revisitation studies?
    • Kéry, M., Spillmann, J.H., Truong, C. & Holderegger, R. 2006. How biased are estimates of extinction probability in revisitation studies? Journal of Ecology 94: 980-986.
    • (2006) Journal of Ecology , vol.94 , pp. 980-986
    • Kéry, M.1    Spillmann, J.H.2    Truong, C.3    Holderegger, R.4
  • 23
    • 0022843705 scopus 로고
    • Seasonal and observer differences in vascular plant records from British woodlands
    • Kirby, K.J., Bines, T., Burn, A., Mackintosh, J., Pitkin, P. & Smith, I. 1986. Seasonal and observer differences in vascular plant records from British woodlands. Journal of Ecology 74: 123-131.
    • (1986) Journal of Ecology , vol.74 , pp. 123-131
    • Kirby, K.J.1    Bines, T.2    Burn, A.3    Mackintosh, J.4    Pitkin, P.5    Smith, I.6
  • 24
    • 1142281922 scopus 로고    scopus 로고
    • Scale-dependent variation in visual estimates of grassland plant cover
    • Klimeš, L. 2003. Scale-dependent variation in visual estimates of grassland plant cover. Journal of Vegetation Science 14: 815-821.
    • (2003) Journal of Vegetation Science , vol.14 , pp. 815-821
    • Klimeš, L.1
  • 25
    • 30944456081 scopus 로고    scopus 로고
    • Why most conservation monitoring is, but need not be, a waste of time
    • Legg, C.J. & Nagy, L 2006. Why most conservation monitoring is, but need not be, a waste of time. Journal of Environmental Management 78: 194-199.
    • (2006) Journal of Environmental Management , vol.78 , pp. 194-199
    • Legg, C.J.1    Nagy, L.2
  • 28
    • 59649095073 scopus 로고
    • Skog och mark i Sverige. Fakta från Riksskogstaxeringen
    • Lindroth, S, ed, In Swedish
    • Lindroth, S. (ed.) 1995. Skog och mark i Sverige. Fakta från Riksskogstaxeringen. Sveriges lantbruksuniversitet, Kommentus förlag, Stockholm, SE. (In Swedish.)
    • (1995) Sveriges lantbruksuniversitet, Kommentus förlag, Stockholm, SE
  • 30
    • 14844300885 scopus 로고    scopus 로고
    • Power of monitoring programmes to detect decline and recovery of rare and vulnerable fish
    • Maxwell, D. & Jennings, S. 2005. Power of monitoring programmes to detect decline and recovery of rare and vulnerable fish. Journal of Applied Ecology 42: 25-37.
    • (2005) Journal of Applied Ecology , vol.42 , pp. 25-37
    • Maxwell, D.1    Jennings, S.2
  • 31
    • 0031011468 scopus 로고    scopus 로고
    • Repeatability of community data: Species richness versus gradient scores in large-scale lichen studies
    • McCune, B., Dey, J.P., Peck, J.E., Cassel, D., Heiman, K., Will-Wolf, S. & Neitlich, P.N. 1997. Repeatability of community data: species richness versus gradient scores in large-scale lichen studies. Bryologist 100: 40-46.
    • (1997) Bryologist , vol.100 , pp. 40-46
    • McCune, B.1    Dey, J.P.2    Peck, J.E.3    Cassel, D.4    Heiman, K.5    Will-Wolf, S.6    Neitlich, P.N.7
  • 32
    • 0000596361 scopus 로고
    • Note on the sampling error of the difference between correlated proportions or percentages
    • McNemar, Q. 1947. Note on the sampling error of the difference between correlated proportions or percentages. Psychometrika 12: 153-157.
    • (1947) Psychometrika , vol.12 , pp. 153-157
    • McNemar, Q.1
  • 34
    • 30944464306 scopus 로고    scopus 로고
    • Monotoring vegetation change caused by trampling: A study in the Cairngorms, Scotland
    • Nagy, L., Nagy, J., Legg, C.J., Sales, D.I. & Horsefield, D. 2002. Monotoring vegetation change caused by trampling: a study in the Cairngorms, Scotland. Botanical Journal of Scotland 54: 191-207.
    • (2002) Botanical Journal of Scotland , vol.54 , pp. 191-207
    • Nagy, L.1    Nagy, J.2    Legg, C.J.3    Sales, D.I.4    Horsefield, D.5
  • 35
    • 84986734308 scopus 로고
    • Increasing the reliability of vegetation analyses by using a team of two investigators
    • Nilsson, C. 1992. Increasing the reliability of vegetation analyses by using a team of two investigators. Journal of Vegetation Science 3: 565.
    • (1992) Journal of Vegetation Science , vol.3 , pp. 565
    • Nilsson, C.1
  • 36
    • 33745120818 scopus 로고    scopus 로고
    • Detecting population declines over large areas with presence-absence, time-to-encounter, and count survey methods
    • Pollock, J.F. 2006. Detecting population declines over large areas with presence-absence, time-to-encounter, and count survey methods. Conservation Biology 20: 882-892.
    • (2006) Conservation Biology , vol.20 , pp. 882-892
    • Pollock, J.F.1
  • 37
    • 20444362746 scopus 로고    scopus 로고
    • Surveyor consistency in presence/absence sampling for monitoring vegetation in a boreal forest
    • Ringvall, A., Petersson, H., Ståhl, G. & Lämås, T. 2005. Surveyor consistency in presence/absence sampling for monitoring vegetation in a boreal forest. Forest Ecology and Management 212: 109-117.
    • (2005) Forest Ecology and Management , vol.212 , pp. 109-117
    • Ringvall, A.1    Petersson, H.2    Ståhl, G.3    Lämås, T.4
  • 38
    • 0037287436 scopus 로고    scopus 로고
    • Assessing species misidentification rates through quality assurance of vegetation monitoring
    • Scott, W.A. & Hallam, C.J. 2002. Assessing species misidentification rates through quality assurance of vegetation monitoring. Plant Ecology 165: 101-115.
    • (2002) Plant Ecology , vol.165 , pp. 101-115
    • Scott, W.A.1    Hallam, C.J.2
  • 39
    • 0001039057 scopus 로고
    • A study of the reliability of range vegetation estimates
    • Smith, A.D. 1944. A study of the reliability of range vegetation estimates. Ecology 25: 441-448.
    • (1944) Ecology , vol.25 , pp. 441-448
    • Smith, A.D.1
  • 40
    • 59649113823 scopus 로고    scopus 로고
    • Vegetationsförä ndringar i svensk skogsmark mellan 1980- och 90-talet: En studie grundad på ståndortskarteringen
    • accessed October 2007
    • Ståhl, G. & Odell, G. 1998. Vegetationsförä ndringar i svensk skogsmark mellan 1980- och 90-talet: en studie grundad på ståndortskarteringen. SLU, Institutionen för skoglig resurshushållning och geomatik, Umeå, Arbetsrapport 37. http://www-sml.slu.se/sk/vegfor98.pdf (accessed October 2007).
    • (1998) SLU, Institutionen för skoglig resurshushållning och geomatik, Umeå, Arbetsrapport , vol.37
    • Ståhl, G.1    Odell, G.2
  • 41
    • 0030609413 scopus 로고    scopus 로고
    • Evaluation of a measurement method for forest vegetation in a large-scale ecological survey
    • Stapanian, M.A., Cline, S.P. & Cassell, D.L. 1997. Evaluation of a measurement method for forest vegetation in a large-scale ecological survey. Environmental Monitoring and Assessment 45: 237-257.
    • (1997) Environmental Monitoring and Assessment , vol.45 , pp. 237-257
    • Stapanian, M.A.1    Cline, S.P.2    Cassell, D.L.3
  • 42
    • 0032847076 scopus 로고    scopus 로고
    • Statistical power of presences-absence data to detect population declines
    • Strayer, D.L. 1999. Statistical power of presences-absence data to detect population declines. Conservation Biology 13: 1034-1038.
    • (1999) Conservation Biology , vol.13 , pp. 1034-1038
    • Strayer, D.L.1
  • 44
    • 0020895484 scopus 로고
    • Use of visual cover assessments as quantitative estimators of some British woodland taxa
    • Sykes, J.M., Horrill, A.D. & Mountford, M.D. 1983. Use of visual cover assessments as quantitative estimators of some British woodland taxa. Journal of Ecology 71: 437-450.
    • (1983) Journal of Ecology , vol.71 , pp. 437-450
    • Sykes, J.M.1    Horrill, A.D.2    Mountford, M.D.3
  • 45
    • 0025683647 scopus 로고
    • Inter-observer variation in forest vegetation cover assessments
    • Tonteri, T. 1990. Inter-observer variation in forest vegetation cover assessments. Silva Fennica 24: 189-196.
    • (1990) Silva Fennica , vol.24 , pp. 189-196
    • Tonteri, T.1
  • 46
    • 0034045264 scopus 로고    scopus 로고
    • Ocular estimates of understory vegetation structure in a closed Picea glauca/Betula papyrifera forest
    • van Hees, W.W.S. & Mead, B.R. 2000. Ocular estimates of understory vegetation structure in a closed Picea glauca/Betula papyrifera forest. Journal of Vegetation Science 11: 195-200.
    • (2000) Journal of Vegetation Science , vol.11 , pp. 195-200
    • van Hees, W.W.S.1    Mead, B.R.2
  • 47
    • 34249302814 scopus 로고    scopus 로고
    • How reliable is the monitoring of permanent vegetation plots? Atest with multiple observers
    • Vittoz, R & Guisan, A. 2007. How reliable is the monitoring of permanent vegetation plots? Atest with multiple observers Journal of Vegetation Science 18: 413-422.
    • (2007) Journal of Vegetation Science , vol.18 , pp. 413-422
    • Vittoz, R.1    Guisan, A.2
  • 48
    • 1142265418 scopus 로고
    • Relative influence of observer error and plot randomization on detection of vegetation change
    • West, N.E. & Hatton, T.J. 1990. Relative influence of observer error and plot randomization on detection of vegetation change. Coenoses 5: 45-49.
    • (1990) Coenoses , vol.5 , pp. 45-49
    • West, N.E.1    Hatton, T.J.2


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