Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T05:14:52.983Z Has data issue: false hasContentIssue false

COMPARISON OF TWO SAMPLING METHODS FOR THE JEFFREY PINE NEEDLE MINER, COLEOTECHNITES SP. (LEPIDOPTERA: GELECHIIDAE) IN SOUTHERN CALIFORNIA1

Published online by Cambridge University Press:  31 May 2012

Thomas R. Unruh
Affiliation:
Division of Biological Control, University of California, Riverside 92521
Robert F. Luck
Affiliation:
Division of Biological Control, University of California, Riverside 92521

Abstract

Within and between tree distributions of the Jeffrey pine needle miner, Coleotechnites sp. and its food resource (needles), were investigated on Jeffrey pine trees at three locations in the San Bernardino Mountains of southern California. These data were used to compare sample allocation by the component of variance technique and a method based on the mean crowding relationship. The numbers of samples necessary to estimate the mean at a given precision differed between the techniques in some cases. The mean crowding technique offered several advantages which are fully discussed. A sampling design for the Jeffrey pine needle miner is proposed.

Résumé

Les distributions intra- et inter-arbre d'une mineuse des aiguilles du pin Jeffrey, Coleotechnites sp., et de sa nourriture (aiguilles), ont été étudiées sur le pin Jeffrey à trois sites dans les Monts San Bernardino en Californie méridionale. Les données ont été utilisées pour comparer différents plans d'échantillonnage par la technique de la répartition de la variance ainsi qu'une méthode basée sur la relation du groupement moyen. Dans certains cas, le nombre d'échantillons nécessaires pour estimer la moyenne avec une précision donnée a varié entre les deux techniques. La technique du groupement moyen s'est montrée avantageuse sur plusieurs points commentés en détail. Un plan d'échantillonnage est proposé pour cette mineuse des aiguilles.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Cochran, W. G. 1963. Sampling Techniques, 2nd ed. Wiley, New York.Google Scholar
Iwao, S. 1970. Analysis of contagiousness in the action of mortality factors on the western tent caterpillar population by using the m*-m relationship. Researches Popul. Ecol. Kyoto Univ. 12: 100110.Google Scholar
Iwao, S. 1975. A new method of sequential sampling to classify populations relative to a critical density. Researches Popul. Ecol. Kyoto Univ. 16: 181285.Google Scholar
Iwao, S. 1977. Analysis of spatial association between two species based on the interspecies mean crowding. Researches Popul. Ecol. Kyoto Univ. 18: 243260.Google Scholar
Iwao, S. and Kuno, E.. 1968. Use of the regression of mean crowding on mean density for estimating sample size and the transformation of data for the analysis of variance. Researches Popul. Ecol. Kyoto Univ. 10: 210214.Google Scholar
Iwao, S. and Kuno, E.. 1971. An approach to the analysis of aggregation pattern in biological populations. In Patil, G. P., Pielou, E. C., and Waters, W. E. (Eds.), Statistical Ecology 1: Spatial Patterns of Statistical Distributions. Penn State University Press, Philadelphia.Google Scholar
Iwao, S. and Wellington, W. G.. 1970. The western tent caterpillar: Qualitative differences and the action of natural enemies. Researches Popul. Ecol. Kyoto Univ. 12: 8199.Google Scholar
Jessen, R. J. 1978. Statistical Survey Techniques. Wiley, New York.Google Scholar
Kuno, E. 1969. A new method of sequential sampling to obtain the population estimates with a fixed level of precision. Researches Popul. Ecol. Kyoto Univ. 11: 127136.Google Scholar
Kuno, E. 1971. Sampling error as a misleading artifact in key factor analysis. Researches Popul. Ecol. Kyoto Univ. 13: 2845.Google Scholar
Kuno, E. 1976. Multistage sampling for population estimation. Researches Popul. Ecol. Kyoto Univ. 18: 3956.Google Scholar
Lindman, H. R. 1974. Analysis of Variance in Complex Experimental Designs. W. H. Freeman, San Francisco.Google Scholar
Lloyd, M. 1967. Mean crowding. J. Anim. Ecol. 36: 130.CrossRefGoogle Scholar
Luck, R. F. 1977. Bionomics and parasites of a needle miner, Coleotechnites sp., infesting Jeffrey pine in southern California. Environ. Ent. 5: 927942.Google Scholar
McLeod, J. H. 1951. Notes on the lodgepole needle miner (Recurvaria milleri) and its parasites in Western North America. Can. Ent. 83: 295301.CrossRefGoogle Scholar
Mirov, N. T. 1967. The Genus Pinus. Ronald Press, New York.Google Scholar
Morris, R. F. 1955. The development of sampling designs for forest insect defoliators, with particular reference to the spruce budworm. Can. J. Zool. 33: 225294.CrossRefGoogle Scholar
Onsager, J. A. 1976. The rationale of sequential sampling, with emphasis on its use in pest management. U.S. Dep. Agric. Tech. Bull. 1526. 19 pp.Google Scholar
Pielou, E. C. 1977. Mathematical Ecology, 2nd ed. Wiley, New York.Google Scholar
SAS. 1979. SAS user's guide, 1979 ed. SAS Institute, Cory, N.C.Google Scholar
Sekita, N. and Yamada, M.. 1973. Applicability of a new sequential sampling method in the field population surveys. Appl. ent. zool. 8: 817.CrossRefGoogle Scholar
Southwood, T. R. E. 1978. Ecological Methods, 2nd ed. Chapman and Hall, London.Google Scholar
Stark, R. W. 1954. Distribution and life history of the lodgepole needle miner (Recurvaria sp.) (Lepidoptera: Gelechiidae) in Canadian Rocky Mountain Parks. Can. Ent. 86: 112.CrossRefGoogle Scholar
Stevens, R. E. 1973. A Ponderosa pine needle miner in the Colorado Front Range. U.S. Dep. Agric. Forest Res. Note RM 228.Google Scholar
Struble, G. R. 1972. Biology, ecology, and control of the lodgepole needle miner. U.S. Dep. Agric. Tech. Bull. 1458. 38 pp.Google Scholar
Swain, K. M. 1968. Evaluation of Snow Valley needle miner infestation. Office mimeo, California Division of Forestry, San Bernardino region. August 19, 1968. 3 pp.Google Scholar
Unruh, T. R. 1980. Intensive and extensive sample designs for the Jeffrey pine needle miner, Coleotechnites sp. (Lepidoptera: Gelechiidae) in the San Bernardino Mountains of southern California. Unpub. Master's Thesis, Univ. of California, Riverside. 131 pp.Google Scholar