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About PLE
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PLE has served as an outstanding location for countless researchers over the past 80 years as evidenced by the following papers. 199. Hoverman, J. T. and R. A. Relyea. 2008. "Temporal environmental variation and phenotypic plasticity: a mechanism underlying priority effects." Oikos 117:23-32. 198. Schoeppner, N. M. and Relyea, R. A. 2008. "Detecting small environmental differences: risk-response curves for predator-induced behavior and morphology." Oecologia 154:742-754. 197. Case, A.L. and T-L. Ashman. 2007. "An experimental test of the effects of resource and sex ratio on maternal fitness and phenotypic selection in gynodioecious Fragaria virginiana." Evolution 61(8): 1900-1911. 196. Hoverman, J. T., R. A. Relyea. 2008. "Temporal environmental variation and phenotypic plasticity: a mechanism underlying priority effects." Oikos, 117:23-32. 195. Long, Z. T., T. H. Pendergast, and W. P. Carson. 2007. "The impact of deer on relationships between tree growth and mortality in an old-growth beech-maple forest." Forest Ecology and Management, 252:230-238. 194. Rosvall, K. 2008 "Sexual selection on aggressiveness in females: evidence from an experimental test with tree swallows." Animal Behavior, in press. 193. Relyea, R. A. 2006. "The impact of insecticides and herbicides on the biodiversity and productivity of aquatic communities." Ecological Applications, 16(5):2022-2027. 192. Steets, J. A., T. M. Knight, and T.-L. Ashman. 2007. "The interactive effects of herbivory and mixed mating for the population dynamics of /Impatiens capensis." The American Naturalist, 170 (1): 113-127. 191. Majetic, C. J., R. A. Raguso, S. J. Tonsor, and T. L. Ashman. 2007. "Flower color-flower scent associations in polymorphic Hesperis matronalis (Brassicaceae)." Photochemistry, 68: 865-874. 190. Ashman, T.-L. and L. Penet. 2007. "Direct and indirect effects of a sex-biased antagonist on male and female fertility: consequences for reproductive trait evolution in a gender dimorphic plant." The American Naturalist, 169 (5): 595-608. 189. Knight, Tiffany. 2007. "Population-level consequences of herbivory timing in Trillium grandiflorum." American Midland Naturalist, 157: 27-38. 188. Hughes, M., R. C. Anderson, W. A. Searcy, L. M. Bottensek, and S. Nowicki. 2007. "Song type sharing and territory tenure in eastern song sparrows: implications for the evolution of song repertoires." Animal Behaviour 73:701-710. 187. Turner, A.M., S.L. Turner, and H.A. Lappi. 2006. "Learning, memory, and predator avoidance by freshwater snails: effects of experience on predator recognition and defensive strategy." Animal Behaviour 72:1443-1450. 186. Turner, A.M. and N. Ruhl. 2006. "Phosphorus loadings associated with a park tourist attraction: limnological consequences of feeding fish." Environmental Management 39:526-533. 185. Relyea, R. A, and J. T. Hoverman. 2006. "Assessing the ecology in ecotoxicology: A review and synthesis in freshwater systems." Ecology Letters, 9:1157-1171. 184. Relyea, R. A. 2006. "The effects of pesticides, pH and predatory stress in amphibians under mesocosm conditions." Ecotoxicology, 15:503-511. 183. Relyea, R. A. 2006. "The impact of insecticides and herbicide on the biodiversity and productivity of aquatic communities: Response." Ecological Applications, 16:2027-2034. 182. Miner, B. G., S. E. Sultan, S. G. Morgan, D. K. Padilla, and R. A. Relyea. 2005. "Ecological consequences of phenotypic plasticity." Trends Ecol. Evol. 20:685-692. 181. Steets, J. A., J. L. Hamrick, and T.-L. Ashman. 2006. "The consequences of vegetative herbivory for the maintenance of intermediate outcrossing in an annual plant." Ecology, 87(11):2717-2727 180. Relyea, R. A. 2005. "The lethal impacts of Roundup® and predatory stress on six species of North American tadpoles. Archives of Environmnetal Contamination and Toxicology 48:351-357. 179. Relyea, R. A. 2005. "The lethal impact of Roundup® on aquatic and terrestrial amphibians." Ecological Applications 15:1118-1124. 178. Relyea, R. A., N. M. Schoeppner, and J. T. Hoverman. 2005. "Pesticides and amphibians: The importance of community context." Ecological Applications 15:1125-1134. 177. Hoverman, J. T., J. R. Auld and R. Relyea. 2005. "Putting prey back together again: intregrating predator-induced behavior, morphology and life history." Oecologia144:481-491. 176. Steets, J.A. R. Salla, and T.-L. Ashman. 2005. "Herbivory and competition interact to affect reproductive and mating system expression in Impatiens capensis." The American Naturalist 167(4):591-600. 175. Comisky, L., A. Royo and W. P. Carson. 2005. "Deer browsing creates rock refugia gardens on large boulders in the Allegheny National Forest, Pennsylvania." The American Midland Naturalist, 154:201-206. 174. Relyea, R. A. and J. R. Auld. 2005. "Predator- and competitor-induced plasticity: how changes in foraging morphology affect phenotypic trade-offs." Ecology 86(7):1723-1729. 173. Cole, D. H. and T-L. Ashman. 2005. "Sexes show differential tolerance to spittlebug damage and consequences of damage for multi-species interactions." American Journal of Botany, 92(10):1708-1713. 172. Schoeppner, N. M. and R. A. Relyea. 2005. "Damage, digestion, and defence, the roles of alarm cues and kairomones for inducing prey defences." Ecology Letters 8:505-512. 171. Nowicki, S. and W. A. Searcy. 2005. "Song and mate choice in birds: how the development of behavior helps us understand and function." The Auk 122:1-14. 170. Hyman, J., M. Hughes, W. A. Searcy, and S. Nowicki. 2005. "Individual variation in the strength of territory defense in male song sparrows: correlates of age, territory tenure, and neighbor aggressiveness." Behavior 141:15-27. 169. Anderson, R. C., W. A. Searcy, and S. Nowicki. 2005. "Partial song matching in an eastern population of song sparrows, Melospiza melodia." Animal Behaviour 69:189-196. 168. Stevens, M. H. H., S. A. Schnitzer, D. Bunker, and W. P. Carson. 2004. "Establishment limitations reduces species recruitment and species richness as soil resources rise." Journal of Ecology 92:339-347. 167. Searcy, W. A., S. Peters and S. Nowicki. 2004. "Effects of early nutrition on growth rate and adult size in song sparrows Melospiza melodia." Journal of Avian Biology 35:269-279. 166. Relyea, R. A. 2005. "The impact of insecticides and herbicides on the biodiversity and productivity of aquatic communities." Ecological Applications 15(2):618-627. 165. Carson, W. P., J. A. Banta, A. A. Royo and C. Kirschbaum. 2005. "Plant communities growing on boulders in the Allegheny National Forest: Evidence for boulders as refugia from deer and as a bioassay of Overbrowsing." National Areas Journal 25(1):10-18. 164. Ashman, T-L., D. Cole, M. Bradburn. B. Blaney, and R. Raguso. 2005 "Scent of a male: the role of floral volatiles in pollination of a gender dimorphic plant." Ecology 86(8):2099-2105. 163. Ashman, T-L. and E. A. King. 2005. "Are flower-visiting ants mutualists or antagonists? A study in a gynodioecious wild strawberry." American Journal of Botany 92(5):891-895. 162. Ashman, T-L. 2005. "The limits on sexual dimorphism in vegetative and phenological traits in a gynodioecious plant: An integrative study of selection and quantitative genetics in a common garden." The American Naturalist(Supplement), 166:S7-S16. 161. Relyea, R. A., J. R. Auld. 2004. "Having the guts to compete: how intestinal plasticity explains cost of inducible defenses." Ecology Letters 7:869-875. 160. Relyea, R. A. 2004. "Growth and survival of five amphibians species exposed to combinations of pesticides." Environmental Toxicology and Chemistry 23:1737-1742. 159. Ballentine, B., J. Hyman, and S. Nowicki. 2004. "Vocal performance influences female response to male bird song: an experimental test." Behavioral Ecology 15(1):163-168. 158. Relyea, R. A. 2003. "Predators come and predators go: the reversibility of predator-induced traits." Ecology 84(7):1840-1848. 157. Steets, J.A. and T.-L. Ashman. 2004. "Herbivory alters the expression of a mixed-mating system." American Journal of Botany 91(7):1046-1051. 156. Beebee, M.D. 2004. "Variation in structural complexity and vocal performance in the songs of a wood-warbler: evidence for the function of distinct singing modes." Ethology 110(7):531-542. 155. Beebee, M. D. 2004. "The functions of multiple singing modes: experimental tests in yellow warblers (Dendroica petechia)." Animal Behaviour 67(6):1089-1097. 154. Seiler, S. M. and A. M. Turner. 2004. "Growth and population size of crayfish in headwater streams: individual- and higher-level consequences of acidification." Freshwater Biology 49:1-12. 153. Turner, A.M. 2004. "Non-lethal effects of predators on prey growth rates depend on prey density and nutrient additions." Oikos 104:561-569. 152. Ashman, T-L, T. Knight, J. Steets, P. Amarasekare, M. Burd, D. Campbell, M. Dudash, M. Johnston, S. J. Mazer, R. Mitchell, M.T. Morgan, and W. Wilson. 2004. “Pollen limitation of plant reproduction: Archetype or ambiguity?” Ecology 85:2408-2421. 151. Relyea, R. A. 2004. "Fine-tuned phenotypes: Tadpole plasticity under 16 combinations of predators and competitors." Ecology 85:172-179. 150. Relyea, R. A. 2004. "Synergistic impacts of malathion and predatory stress on six species of North American tadpoles." Environmental Toxicology Chemistry 23(4):1080-1084. 149. Relyea, R. A. 2003. "How prey respond to combined predators: A review and an empirical test." Ecology 84:1827-1839. 148. Searcy, W. A., S. Nowicki and S. Peters. 2003. "Phonology and Geographic Song Discrimination in Song Sparrows." Ethology 109:23-35. 147. Nowicki, S., W. A. Searcy, T. Krueger and M. Hughes. 2002. "Individual variation in response to simulated territorial challenge among territory-holding song sparrows." Journal of Avian Biology 33:253-259. 146. Stevens, M. H. H., S. Schnitzer, D. Bunker and W. P. Carson. 2004. "Establishment limitation reduces species recruitment and species richness as soil resources rise." Journal of Ecology 92:339-347. 145. Ashman, T-L., D. Cole, and M. Bradburn. 2004. "Sex-differential resistance and tolerance to herbivory in a gynodioecious wild strawberry: Implications for floral and sexual system evolution." Ecology 85:2550-2559. 144. Ashman, T-L, and M. T. Morgan. 2004. "Explaining phenotypic selection on plant attractive characters: Male function, gender balance or ecological context?" Proc. Royal Soc. London: B. 271:553-559. 143. Chase, J. and T. M. Knight. 2003. "Drought-induced mosquito outbreaks in wetlands." Ecology Letters 6:1017-1024. 142. Knight, T. M. 2003. "Floral density, pollen limitation, and reproductive success in Trillium grandiflorum." Oecologia 137: 557-563. 141. Knight, T. M. 2003. "The effects of herbivory and pollen limitations on the declining population of Trillium grandiflorum." Ecological Applications 14(3):915-928. 140. Knight, T. M. 2003. "Effects of herbivory and its timing across populations of Trillium Grandiflorum (Liliaceae)." American Journal of Botany 90(8):1207-1214. 139. Mower, Christina, A. M. Turner. 2003. "Behavior, morphology, and the coexistence of two pulmonate snails with molluscivorous fish: a comparative approach" American Malacological Bulletin 19:39-46. 138. Relyea, R. A. 2003. "Predator cues and pesticides: A double dose of danger for amphibians." Ecological Applications 13(6):1515-1521. 137. Stevens, M. H. H and W. P. Carson. 2002. "Resource quantity, not resource heterogeneity, maintains plant diversity." Ecology Letters 5:420-426. 136. Ashman, T.-L. 2003. "Constraints on the evolution of males and sexual dimorphism: field estimates of genetic architecture of reproductive traits in three populations of gynodioecious Fragaria virginiana." Evolution 57:2012-2025. 135. Nowicki, S., W. A. Searcy and S. Peters. 2002. "Quality of song learning affects female response to male bird song." The Royal Society, Proc. R. Soc. Lond. B 269:1949-1954. 134. Searcy, W. A., S. Nowicki, M. Hughes and S. Peters. 2002. "Geographic song discrimination in relation and dispersal distances in song sparrows." The American Naturalist 159(3):221-230. 133. Morgan, M. T. and Ashman, T.-L. 2003. Quantitative character evolution under complicated sexual systems, illustrated in Gynodioecious Fragaria virginiana." The American Naturalist 162(2):257-264. 132. Stevens, M.H.H. and W.P. Carson. 1999. "The significance of assemblage-level thinning for species richness." Journal of Ecology 87:490-502. 131. Forbes, A. E. and J. M. Chase. 2003. "The role of habitat connectivity and landscape geometry in experimental zooplankton metacommunities." Oikos 96:433-440. 130. Turner, A. M. and S. L. Montgomery. 2003. "Spatial and temporal scales of predator avoidance: experiments with fish and snails." Ecology 84:616-622. 129. Ashley, M. V., K. J. Craft., K. L. Jones, J. L. Fessler, K. Lewers, S. M. Styan and T.-L. Ashman. 2003. "High variability and isomic segregation of microsatellites in the Octaploid Fragaria virginiana (Rosaceae)." Theoretical and Applied Genetics 107(7):1201-1207. 128. Beebee, Martin D. 2002. "Song sharing by yellow warblers differs between two modes of singing: implications for song function." The Condor 104:146-155. 127. Kalla, S. and T.-L. Ashman. 2002. "The effects of pollen competition on progeny vigor in Fragaria virginiana (Rosaceae) depend on progeny growth environment." International Journal of Plant Sciences 163:335-340. 126. Ashman, T.-L. 2001. "The role of Herbivores in the evaluation of separate series from Hermophorditis." Ecology Concepts and Synthesis Section 83(5):1175-1184. 125. Peters, S., Searcy, W. A., Beecher, M. D. and Nowicki, S. 2000. "Geographic variation in the organization of song sparrow repertoires." The Auk 117(4):936-942. 124. Searcy, W. A., S. Nowicki, and C. Hogan. 2000. "Song type variants and aggressive context." Behavioral Ecology Sociobiology 48:358-363. 123. Bernot, R., A. M. Turner. 2001. "Predator identity and trait-mediated indirect effects in a littoral food web." Oecologia 129:139-146. 122. Ashman, T.-L., J. Pacyna, C. Diefenderfer, and T. Leftwich. 2001. "Size-dependent sex allocation in a gynodioecious wild strawberry: The effects of sex morph and inflorescence architecture." International Journal of Plant Sciences 162:327-334. 121. Ashman, T.-L. and C. Diefenderfer. 2001. "Sex ratio represents a unique context for selection on attractive traits: consequences for the evolution of sexual dimorphism." American Naturalist 157:334-347. 120. Searcy, W. A., S. Nowicki, and S. Peters. 1999. "Song types as fundamental units in vocal repertoires." Animal Behavior 58:37-44. 119. Searcy, W. A. and S. Nowicki. 1999. "Functions of song variation in song sparrows." in Neural Mechanisms of Behavior MIT Press, Cambridge, MA pp. 577-595. 118. Searcy, W. A., S. Nowicki, and M. Hughes. 1997. "The response of male and female song sparrows to geographic variation in song." Condor 99:651-657. 117. Ashman, T.-L, S. Shivitz, and J. Swetz. 2000. "Understanding the basis of pollinator selectivity in sexually dimorphic Fragaria virginiana." Oikos 90:347-356. 116. Kalisz, S., D. Vogler, B. Fails, M. Finer, E. Sheppard, and T. Herman. 1999. "Evidence for delayed selfing in Collinsia verna." Amer. J. of Botany 86:1239-1247. 115. Kalisz, S., F. M. Hanzawa, S. J. Tonsor, D. A. Thiede and S. J. Voigt. 1999. "Ant-mediated seed dispersal alters pattern of relatedness in a population of Trillium grandiflorum." Ecology 80:2620-2634. 114. Niewinski, B. C. and C. P. Ferreri. 1999. "A Comparison of three structures for estimating the age of yellow perch." North American J. of Fisheries Management 19:872-877. 113. Reed, W. L., A. M. Turner, and P. R. Sotherland. 1999. "Consequences of egg-size variations in the red-winged blackbird." Auk 116(2):549-552. 112. Turner, A. M., R. J. Bernot, and C. M. Boes. 2000. "Chemical cues modify species interactions: the ecological consequences of predator avoidance by freshwater snails." Oikos 88: 148-158. 111. McPeek, M. A. and S. Kalisz. 1998. "On the joint evolution of dispersal and dormancy in metapopulations." Arch. Hydrobiol. Spec. Issues Advanc. Limnol. 52:33-51. 110. Stevens, M.H.H. and W.P. Carson. 2002. "Resource quantity, not resource heterogeneity, maintains plant diversity." Ecology Letters 5:420-426. 109. Stevens, M.H.H. and K. W. Cummins. 1999. "Effects of long-term disturbance on riparian vegetation and in-stream characteristics." Journal of Freshwater Ecology 14:1‑17. 108. Stevens, M.H.H. and W.P. Carson. 1999. "Plant density determines species richness along an experimental productivity gradient." Ecology 80:455-465. 107. Ashman, T.-L. and M. S. Hitchens. 2000. "Dissecting the causes of variation in intra-inflorescence allocation in a sexually polymorphic species, Fragaria virginiana." American Journal of Botany 87:197-204. 106. Turner, A., S. A. Fetterolf, and R. Bernot. 1999. "Predator identity and consumer behavior: differential effects of fish and crayfish on the habitat use of a freshwater snail." Oecologia 118:242-247. 105. Ashman, T.-L. 1999. "Quantitative genetics of floral traits in a gynodioecious wild strawberry Fragaria virginiana: implications for the independent evolution of female and hermaphrodites floral phenotypes." Heredity 83:731-741. 104. Nowicki, S., W. A. Searcy, and M. Hughes. 1998. "The territory defense function of song in song sparrows: a test with the speaker occupation design." Behaviour 135:615-628. 103. Hughes, M., S. Nowicki, W. A. Searcy, and S. Peters. 1998. "Song-type sharing in song sparrows: implications for repertoire function and song learning." Behav. Ecol. Sociobiol 42: 437-446. 102. Ashman, T.-L. 2000. "Pollinator selectivity and its implications for the evolution of dioecy and sexual dimorphism." Ecology 81:2577-2591. 101. Ashman, Tia-Lynn. 1999. "Determinants of sex allocation in a gynodioecious wild strawberry: implications for the evolution of dioecy and sexual dimorphism." Journal of Evolutionary Biology 12:648-661. 100. Ashman, Tia-Lynn. 1998. "Is relative pollen production or removal a good predictor of relative male fitness? An experimental exploration with wild strawberry (Fragaria virginiana, Rosaceae)." American Journal of Botany 85(8):1166‑1171. 99. Nastase, A. J. 1998. "Diurnal time budgets and behavioral repertoire of refuge Canada geese in Pennsylvania." Proc. Intern. Canada Goose Sym. pp. 367-374. 98. Nastase, A. J. and D. A. Sherry. 1997. "Effect of brood mixing on location and survivorship of juvenile Canada geese." Anim. Behav. 54:503-507. 97. Grubbs, S. A. and K. W. Cummins. 1994. "Processing and macroinvertebrate colonization of Black Cherry (Prunus serotina) leaves in two streams differing in summer biota, thermal regime and riparian vegetation." Am. Midl. Nat. 132:284-293. 96. Grubbs, S. A. and K. W. Cummins. 1994. "A leaf-toughness method for directly measuring the processing of naturally entrained leaf detritus in streams." J. N. Am. Benthol. Soc. 13(1):68-73. 95. Capp, Michael S. 1992. "Tests of the function of the song repertoire in Bobolinks." Condor 94:468-479. 94. Wilzbach, M.A. 1992. "Interactions between native brook trout and hatchery brown trout: effects on habitat use, feeding, and growth." Trans. Amer. Fish Soc. 121:287-296 (DeWald, Lynn and Wilzbach, Margaret, eds.). 93. Capp, M. S. and W. A. Searcy. 1991. "Acoustical communication of aggressive intentions by territorial male bobolinks." Behav. Ecol. 2(4):319-326. 92. Searcy, W. A. and K. Yasukawa. 1990. "Use of the song repertoire in intersexual and intrasexual contexts by male red-winged blackbirds." Behav. Ecol. Sociobiol. 27:123-128. 91. Searcy, W. A. and K. Yasukawa. 1989. "Alternative models of territorial polygyny in birds." Amer. Natur. 134:323-343. 90. Wilzbach, M. A. and K. W. Cummins. 1989. "An assessment of short-term depletion of stream macroinvertebrate benthos by drift. Hydrobiologia 185:29‑39. 89. Searcy, W. A. 1989. "Function of male courtship vocalizations in red-winged blackbirds." Behav. Ecol. Sociobiol. 24:325-331. 88. Searcy, W. A and E. A. Brenowitz. 1988. "Sexual differences in species recognition of avian song." Nature 332:152-154. 87. Searcy, W. A. 1988. "Do female red-winged blackbirds limit their own breeding densities?" Ecology 69:85-95. 86. DeLa Rosa, C. L. and A. J. Nastase. 1987. "Larvae of Metriocnemus cf. Fuscipes, Limnophyes sp., Pentaneurini (Diptera: Chironomidae) and Culicoides (Diptera: Ceratopogonidae) from Pitcher Plants, Sarracenia purpurea." J. Kansas Entomol. Soc. 60:339-341. 85. Schwartz, F. J. 1987. "Homing behavior of tagged and displaced carp, Cyprinus carpio, in Pymatuning Lake, Pennsylvania." Ohio J. Sci. 87:15-22. 84. Schwartz, F. J. 1986. "A leadless stackable trap for harvesting common carp." N. A. Journal of Fish Manag. 5:596-598. 83. Searcy, W. A. 1986. "Are female red-winged blackbirds teritorial?" Anim. Behav. 34:1381-1391. 82. Mares, M. A. and T. E. Lacher, Jr. 1987. "Social spacing in small mammals: Patterns of individual variation." Am. Zool. 27:293-306. 81. Yasukawa, K. and W. A. Searcy. 1985. "Song repertoires and density assessment in red-winged blackbirds: further tests of the Beau Geste hypothesis." Behav. Ecol. Sociobiol. 16:171-175. 80. Garber, K. J. and R. T. Hartman. 1985. "Internal phosphorus loading to shallow Edinboro Lake in Northwestern Pennsylvania." Hydrobiologia 122:45-52. 79. Ferrington, L. C., Jr. 1984. "Drift dynamics of Chironomidae larvae: I. Preliminary results and discussion of importance of mesh size and level of taxonomic identification in resolving Chironomidae diel drift patterns." Hydrobiol. 114:215-227. 78. Dudley, J. L. 1984. "Algal communities in the leaf liquid of the Pitcher Plant, Sarracenia purpurea L." Proc. Penn. Acad. Sci. 58:213-315. 77. Searcy, W. A. and Ken Yasukawa. 1983. "Sexual selection and red-winged blackbirds." Am. Sci. 71:166-174. 76. Coffman, W. P. 1983. "Thoracic chaetotaxy of chironomid pupae (Diptera: Chironomidae)." Mem. Amer. Ent. Soc. 34:61-70. 75. Werner, M. T., L. L. Osborne, W. Kodrich, and D. I. Wood. 1982. "Effects of coal strip mining on the structure of benthic macroinvertebrate communities in Town Run, Clarion County, Pennsylvania." Penna. Acad. Sci. 55:142-146. 74. Nastase, A. J. 1982. "Orientation and homing ability of the barn swallow." J. Field Ornithology 53:15-21. 73. Nastase, A. J. 1982. "An inexpensive trap for capturing flightless Canada Geese." N. Amer. Bird Bander 7:47-48. 72. Mares, M. A., T. E. Lacher, Jr., M. R. Willig, N. A. Bitar, A. Klinger, R. Adams, and D. Tazik. 1982. "An experimental analysis of the determinants of social spacing in Tamias striatus." Ecology 63:267-273. 71. Coleman, B. D., M. A. Mares, M. R. Willig, and Y.-H. Hsieh. 1982. "Randomness, area, and species richness." Ecology 63-1121-1133. 70. Swegman, B. G., W. Walker, and J. L. Sykora. 1981. "The adult Trichoptera and Linesville Creek, Crawford County, Pennsylvania with notes on their flight activity." Amer. Ent. Soc. 107:125-147. 69. Mares, M. A., K. E. Streilein and M. R. Willig. 1981. "Experimental assessment of several population estimation techniques on an introduced population of eastern chipmunks." J. Mamm. 62:315-328. 68. Herbst, R. P. and R. T. Hartman. 1981. "Phytoplankton distribution of a duckweek covered pond." J. Freshwater Ecol. 1:97-111. 67. Yocom, D. H. and D. T. Wicklow. 1980. "Community differentiation along a dune succession: an experimental approach with coprophilous fungi." Ecology 61(4):868-80. 66. Swegman, B. and L. C. Ferrington, Jr. 1980. "New records of western Trichoptera with notes on their biology." Great Basin Naturalist 40(3):287-291. 65. Seward, R. M. 1980. "Adult feeding in two species of Chiromidae (Diptera)." Entomological News 91(5):164. 64. Robertson, D. J. 1980. "The stoneflies (Plecoptera) and mayflies (Ephemeroptera) of the Bear Run Nature Reserve in Southwestern Pennsylvania." The Melsheimer Ent. Series # 27. 63. Rabatin, S. C. 1980. "The occurrences of the vesicular-arbuscular mycorrhizal fungus Glomus tenuis with moss." Mycologia, 72(1):191-195. 62. Mares, M. A., M. R. Willig, and N. A. Bitar. 1980. "Home range size in eastern chipmunks, Tamias striatus, as a function of number of captures: statistical biases of inadequate sampling." J. Mamm. 61(4):661-669. 61. Mares, M. A., R. Adams, T. E. Lacher, Jr., and M. Willig. 1980. "Home range dynamics in chipmunks: response to experimental manipulation of population density and distribution." Ann. Carnegie Museum 49:193-201. 60. Krzysik, A. J. 1980. "Trophic aspects of brooding behavior in Desmognathus fuscus fuscus." J. Herpetol. 14(4):426-428. 59. Krzysik, A. J. 1980. "Microhabitat selection and brooding phenology of Desmognathus fuscus fuscus in Western Pennsylvania." J. Herpetol. 14(3):291‑292. 58. Geotz, G. 1980. "Trachael patterns of larval Chironomidae (Diptera, Nematocera)." Entom. Scandinavica 11:291-296. 57. Rabatin, S. C. 1979. "Seasonal and edaphic variation in vesicular-arbuscular mycorrhizal infection of grasses by Glomus tenuis." 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