Variation in pollinator effectiveness in swamp milkweed, Asclepias incarnata (Apocynaceae)

American Journal of Botany

Volumn 90, Issue 2, 2003, Pages 214-225

  Ivey, Christopher T ^a   Martinez, Pocholo ^b   Wyatt, Robert ^c  

^a UNIVERSITY OF VIRGINIA   (United States)

^b Highlands Biological Station ^*  (United States)

^c Highlands Biological Station   (United States)

Author keywords

Apocynaceae; Asclepias incarnata; Flower handling time; Fractional pollen deposition; Geitonogamy; Generalization; Plant reproductive success; Pollination; Pollinator effectiveness; Specialization

Indexed keywords

FITNESS; FLOWER VISITING; HANDLING TIME; PLANT-POLLINATOR INTERACTION; REPRODUCTIVE SUCCESS; ZOOPHILY;

ANIMALIA; APOCYNACEAE; ASCLEPIAS; ASCLEPIAS INCARNATA; HEXAPODA; HYMENOPTERA; INSECTA;

EID: 0346091204     PISSN: 00029122     EISSN: None     Source Type: Journal    
DOI: 10.3732/ajb.90.2.214     Document Type: Article

References (97)

1. AIGNER, P. A. 2001. Optimality modeling and fitness trade-offs: when should plants become pollinator specialists? Oikos 95: 177-184.
2. AIZEN, M. A. 2001. Flower sex ratio, pollinator abundance, and the seasonal pollination dynamics of a protandrous plant. Ecology 82: 127-144.
3. ASHMAN, T. L., AND M. STANTON. 1991. Seasonal variation in pollination dynamics of sexually dimorphic Sidalcea oregana ssp. spicata (Malvaceae). Ecology 72: 993-1003.
4. BENNINGTON, C. C., AND W. V. THAYNE. 1994. Use and misuse of mixed model analysis of variance in ecological studies. Ecology 75: 717-722.
5. BOWERS, M. A. 1997. University of Virginia's Blandy Experimental Farm. Bulletin of the Ecological Society of America 78: 220-225.
6. BROYLES, S. B., A. SCHNABEL, AND R. WYATT. 1994. Evidence for long-distance pollen dispersal in milkweeds (Asclepias exaltata). Evolution 48: 1032-1040.
7. BROYLES, S. B., AND R. WYATT. 1993. The consequences of self-pollination in Asclepias exaltata, a self-incompatible milkweed. American Journal of Botany 80: 41-44.
8. BROYLES, S. B., AND R. WYATT. 1997. The pollen donation hypothesis revisited: a response to Queller. American Naturalist 149: 595-599.
9. BURD, M. 1994. Bateman's principle and plant reproduction: the role of pollen limitation in fruit and seed set. Botanical Review 60: 83-139.
10. CAMPBELL. D. R. 1989. Measurements of selection in a hermaphroditic plant: variation in male and female pollination success. Evolution 43: 318-334.
11. CARTHEW, S. M. 1993. An assessment of pollinator visitation to Banksia spinulosa. Australian Journal of Ecology 18: 257-268.
12. CONNER, J. K., R. DAVIS, AND S. RUSH. 1995. The effect of wild radish floral morphology on pollination efficiency by four taxa of pollinators. Oecologia 104: 234-245.
13. CRAWFORD, T. J. 1984. What is a population? In B. Shorrocks [ed.], Evolutionary ecology. 23rd symposium of the British Ecological Society, 135-173. Blackwell Scientific, Oxford, UK.
14. CREPET, W. L. 1983. The role of insect pollination in the evolution of angiosperms. In L. Real [ed.], Pollination biology, 29-50. Academic Press, New York, New York, USA.
15. CRESSWELL, J. E. 1999. The influence of nectar and pollen availability on pollen transfer by individual flowers of oil-seed rape (Brassica napus) when pollinated by bumblebees (Bombus lapidarius). Journal of Ecology 87: 670-677.
16. DE JONG, T. J., P. G. L. KLINKHAMER, AND M. J. VAN STAALDUINEN. 1992. The consequences of pollination biology for selection of mass or extended blooming. Functional Ecology 6: 606-615.
17. DE JONG, T. J., N. M. WASER, AND P. G. L. KLINKHAMER. 1993. Geitonogamy: the neglected side of selfing. Trends in Ecology and Evolution 8: 321-325.
18. DIERINGER, G. 1992. Pollinator effectiveness and seed set in populations of Agalinis strictifolia (Scrophulariaceae). American Journal of Botany 79: 1018-1023.
19. FENSTER, C. B., AND M. R. DUDASH. 2001. Spatiotemporal variation in the role of hummingbirds as pollinators of Silene virginica. Ecology 82: 844-851.
20. FISHBEIN, M., AND D. L. VENABLE. 1996. Diversity and temporal change in the effective pollinators of Asclepias tuberosa. Ecology 77: 1061-1073.
21. GALEN, C., AND M. L. STANTON. 1989. Bumble bee pollination and floral morphology: factors influencing pollen dispersal in the alpine sky pilot, Polemonium viscosum (Polemoniaceae). American Journal of Botany 16: 419-426.
22. GOMEZ, J. M., AND R. ZAMORA. 1999. Generalization vs. specialization in the pollination system of Hormathophylla spinosa (Cruciferae). Ecology 80: 796-805.
23. GRANT, V., AND K. A. GRANT. 1965. Flower pollination in the phlox family. Columbia University Press, New York, New York, USA.
24. GRIMALDI, D. 1991. The co-radiations of pollinating insects and angiosperms in the Cretaceous. Annals of the Missouri Botanical Garden 86: 373-406.
25. HARDER, L. D. 1986. Effects of nectar concentration and flower depth on flower handling efficiency of bumble bees. Oecologia 69: 309-315.
26. HARDER, L. D., AND S. C. H. BARRETT. 1995. Mating cost of large floral displays in hermaphrodite plants. Nature 373: 512-515.
27. HERRERA, C. M. 1987. Components of pollinator "quality": comparative analysis of a diverse insect assemblage. Oikos 50: 79-90.
28. HERRERA, C. M. 1988. Variation in mutualisms: the spatio-temporal mosaic of pollinator assemblage. Biological Journal of the Linnean Society 35: 95-125.
29. HERRERA, C. M. 1989. Pollinator abundance, morphology, and flower visitation rate: analysis of the "quantity" component in a plant-pollinator system. Oecologia 80: 241-248.
30. HERRERA, C. M. 1995. Microclimate and individual variation in pollinators: flowering plants are more than their flowers. Ecology 76: 1516-1524.
31. HERRERA, C. M. 2000. Flower-to-seedling consequences of different pollination regimes in an insect-pollinated shrub. Ecology 81: 15-29.
32. HORVITZ, C. C., AND D. W. SCHEMSKE. 1990. Spatiotemporal variation in insect mutualists of a neotropical herb. Ecology 71: 1085-1097.
33. HURLBERT, A. H., S. A. HOSOI, E. J. TEMELES, AND P. W. EWALD. 1996. Mobility of Impatiens capensis flowers: effect on pollen deposition and hummingbird foraging. Oecologia 105: 243-246.
34. HUSBAND, B. C., AND D. W. SCHEMSKE. 1996. Evolution of the magnitude and timing of inbreeding depression. Evolution 50: 54-70.
35. IVEY, C. T., S. R. LIPOW, AND R. WYATT. 1999. Mating systems and interfertility of swamp milkweed (Asclepias incarnata ssp. incarnata and ssp. pulchra). Heredity 82: 25-35.
36. IVEY, C. T., AND R. WYATT. 1999. Family outcrossing rates and neighborhood floral density in natural populations of swamp milkweed (Asclepias incarnata): potential statistical artifacts. Theoretical and Applied Genetics 98: 1063-1071.
37. JENNERSTEN, O. 1984. Flower visitation and pollination efficiency of some North European butterflies. Oecologia 63: 80-89.
38. JENNERSTEN, O., AND D. H. MORSE. 1991. The quality of pollination by diurnal and nocturnal insects visiting common milkweed, Asclepias syriaca. American Midland Naturalist 125: 18-28.
39. JOHNSON, S. D., AND K. E. STEINER. 2000. Generalization versus specialization in plant pollination systems. Trends in Ecology and Evolution 15: 140-143.
40. JONES, K. N., J. S. REITHEL, AND R. E. IRWIN. 1998. A trade-off between the frequency and duration of bumblebee visits to flowers. Oecologia 117: 161-168.
41. KEPHART, S. R. 1981. Breeding systems in Asclepias incarnata L., A. syriaca L., and A. verticillata L. American Journal of Botany 68: 226-232.
42. KEPHART, S. R. 1983. The partitioning of pollinators among three species of Asclepias. Ecology 64: 120-133.
43. KEPHART, S. R. 1987. Phenological variation in flowering and fruiting of Asclepias. American Midland Naturalist 118: 64-76.
44. KLINKHAMER, P. G. L., AND T. J. DE JONG. 1993. Attractiveness to pollinators: a plant's dilemma. Oikos 66: 180-184.
45. KLINKHAMER, P. G. L., E. MEELIS, T. J. DE JONG, AND J. WEINER. 1992. On the analysis of size-dependent reproductive output in plants. Functional Ecology 6: 308-316.
46. LERTZMAN, K. P., AND C. L. GASS. 1983. Alternative models of pollen transfer. In C. E. Jones and R. J. Little [eds.], Handbook of experimental pollination biology, 474-489. Van Nostrand Reinhold. New York, New York, USA.
47. LIEDE, S. 1994. Some observations on pollination in Mexican Asclepiadaceae. Madroño 41: 266-276.
48. LIPOW, S. R., AND R. WYATT. 2000. Towards an understanding of the mixed breeding system of swamp milkweed (Asclepias incarnata). Journal of the Torrey Botanical Society 127: 193-199.
49. LITTELL, R. C., G. A. MILLIKEN, W. W. STROUP, AND R. D. WOLFINGER. 1996. SAS system for mixed models. SAS Institute, Cary, North Carolina, USA.
50. MACIOR, L. W. 1965. Insect adaptation and behavior in Asclepias pollination. Bulletin of the Torrey Botanical Club 92: 114-126.
51. MCCULLAGH, P, AND J. A. NELDER. 1989. Generalized linear models, 2nd ed. Chapman and Hall, London, UK.
52. MITCHELL, R. J., AND N. M. WASER. 1992. Adaptive significance of Ipomopsis aggregata nectar production: pollination success of single flowers. Ecology 73: 633-638.
53. MORRIS, W. F., M. V. PRICE, N. M. WASER, J. D. THOMSON, B. THOMSON, AND D. A. STRATTON. 1994. Systematic increase in pollen carryover and its consequences for geitonogamy in plant populations. Oikos 71: 431-440.
54. OLLERTON, J., AND S. LIEDE. 1997. Pollination systems in the Asclepiadaceae: a survey and preliminary analysis. Biological Journal of the Linnean Society 62: 593-610.
55. PELLMYR, O., AND J. N. THOMPSON. 1996. Sources of variation in pollinator contribution within a guild: the effects of plant and pollinator factors. Oecologia 107: 595-604.
56. PETANIDOU, T., AND W. N. ELLIS. 1993. Pollinating fauna of a phryganic ecosystem: composition and diversity. Biodiversity Letters 1: 9-22.
57. PETTERSSON, M. W. 1991. Pollination by a guild of fluctuating moth populations: option for unspecialization in Silene vulgaris. Journal of Ecology 79: 591-604.
58. POTVIN, C., M. J. LECHOWICZ, AND S. TARDIF. 1990. The statistical analysis of ecophysiological response curves obtained from experiments involving repeated measures. Ecology 71: 1389-1400.
59. PRIMACK, R. B., AND J. A. SILANDER. 1975. Measuring the relative importance of different pollinators to plants. Nature 255: 143-144.
60. RICHARDS, K. W. 1987. Diversity, density, efficiency, and effectiveness of pollinators of cicer milkvetch, Astragalus cicer L. Canadian Journal of Zoology 65: 2168-2176.
61. ROBERTSON, A. W. 1992. The relationship between floral display size, pollen carryover and geitonogamy in Myosotis colensoi (Kirk) Macbride (Boraginaceae). Biological Journal of the Linnean Society 46: 333-349.
62. ROBERTSON, C. 1887. Insect relations of certain Asclepiads. I. Botanical Gazette 12: 207-216.
63. SAS INSTITUTE. 1996. SAS version 6.12. SAS Institute, Cary, North Carolina, USA.
64. SCHEMSKE, D. W., AND H. D. BRADSHAW. 1999. Pollinator preference and the evolution of floral traits in monkeyflowers (Mimulus). Proceedings of the National Academy of Sciences, USA 96: 11910-11915.
65. SCHEMSKE, D. W., AND C. C. HORVITZ. 1984. Variation among floral visitors in pollination ability: a precondition for mutualism specialization. Science 225: 519-521.
66. SCHEMSKE, D. W., AND C. C. HORVITZ. 1989. Temporal variation in selection on a floral character. Evolution 43: 461-465.
67. SELF, S. G., AND K. Y. LIANG. 1987. Asymptotic properties of maximum likelihood estimators and likelihood ratio tests under nonstandard conditions. Journal of the American Statistical Association 82: 605-610.
68. SHAW, R. G., AND T. MITCHELL-OLDS. 1993. Anova for unbalanced data: an overview. Ecology 74: 1638-1645.
69. SHORE, J. S. 1993. Pollination genetics of the common milkweed, Asclepias syrlaca L. Heredity 70: 101-108.
70. SMITH, C. E., J. T. STEVENS, E. J. TEMELES, P. W. EWALD, R. J. HEBERT, AND R, L. BONKOVSKY. 1996. Effect of floral orifice width and shape on hummingbird-flower interactions. Oecologia 106: 482-492.
71. SNOW, A. A., AND P. O. LEWIS. 1993. Reproductive traits and male fertility in plants: empirical approaches. Annual Review of Ecology and Systematics 24: 331-351.
72. SPEARS, E. E. 1983. A direct measure of pollinator effectiveness. Oecologia 57: 196-199.
73. STEBBINS, G. L. 1970. Adaptive radiation of reproductive characteristics in angiosperms, I. Pollination mechanisms. Annual Review of Ecology and Systematics 1: 307-326.
74. STEEL, R. G. D., AND J. H. TORRIE. 1980. Principles and procedures of statistics: a biometrical approach. McGraw-Hill, New York, New York, USA.
75. THOMPSON, S. K. 1992. Sampling. Wiley and Sons, New York, New York, USA.
76. THOMSON, J. D. 1981. Spatial and temporal components of resource assessment by flower-feeding insects. Journal of Animal Ecology 50: 49-59.
77. THOMSON, J. D. 1986. Pollen transport and deposition by bumble bees in Erythronium: influences of floral nectar and bee grooming. Journal of Ecology 74: 329-341.
78. THOMSON, J. D., AND B. A. THOMSON. 1992. Pollen presentation and viability schedules in animal-pollinated plants: consequences for reproductive success. In R. Wyatt [ed.], Ecology and evolution of plant reproduction, 1-24. Chapman and Hall, New York, New York, USA.
79. TOTLAND, O. 1994. Intraseasonal variation in pollination intensity and seed set in an alpine population of Ranunculus acris in southwestern Norway. Ecography 17: 159-165.
80. UTELLI, A. B., AND B. A. ROY. 2000. Pollinator abundance and behavior on Aconitum lycoctonum (Ranunculaceae): an analysis of the quantity and quality components of pollination. Oikos 89: 461-470.
81. VERBEKE, G., AND G. MOLENBERGHS. 1997. Linear mixed models in practice: an SAS-oriented approach. Springer, New York, New York, USA.
82. WASER, N. M., L. CHITTKA, M. V. PRICE, N. M. WILLIAMS, AND J. OLLERTON. 1996. Generalization in pollination systems, and why it matters. Ecology 77: 1043-1060.
83. WASER, N. M., AND M. V. PRICE. 1990. Pollination efficiency and effectiveness of bumble bees and hummingbirds visiting Delphinium nelsonii. Collectanea Botanica (Barcelona) 19: 9-20.
84. WILLSON, M. F., AND R. I. BERTIN. 1979. Flower-visitors, nectar production, and inflorescence size of Asclepias syriaca. Canadian Journal of Botany 57: 1380-1388.
85. WILLSON, M. F., R. I. BERTIN, AND P. W. PRICE. 1979. Nectar production and flower visitors of Asclepias verticillata. American Midland Naturalist 102: 23-35.
86. WILSON, P. 1995. Selection for pollination success and the mechanical fit of Impatiens flowers around bumblebee bodies. Biological Journal of the Linnean Society 55: 355-383.
87. WILSON, P, AND J. D. THOMSON. 1991. Heterogeneity among floral visitors leads to discordance between removal and deposition of pollen. Ecology 72: 1503-1507.
88. WINER, B. J. 1971. Statistical principles in experimental design. McGraw-Hill, New York, New York, USA.
89. WOODSON, R. E. 1954. The North American species of Asclepias L. Annals of the Missouri Botanical Garden 41: 1-211.
90. WYATT, R. 1976. Pollination and fruit-set in Asclepias: a reappraisal. American Journal of Botany 63: 845-851.
91. WYATT, R. 1978. Experimental evidence concerning the role of the corpusculum in Asclepias pollination. Systematic Botany 3: 313-321.
92. WYATT, R., AND S. B. BROYLES. 1994. Ecology and evolution of reproduction in milkweeds. Annual Review of Ecology and Systematics 25: 423-441.
93. WYATT, R., S. B. BROYLES, AND G. S. DERDA. 1992. Environmental influences on nectar production in milkweeds (Asclepias syriaca and A. exaltata). American Journal of Botany 79: 636-642.
94. WYATT, R., S. B. BROYLES, AND S. R. LIPOW. 2000. Pollen-ovule ratios in milkweeds (Asclepiadaceae): an exception that probes the rule. Systematic Botany 25: 171-180.
95. YOUNG, H. J., AND M. L. STANTON. 1990. Influences of floral variation on pollen removal and seed production in wild radish. Ecology 71: 536-547.
96. ZAMORA, R. 2000. Functional equivalence in plant-animal interactions: ecological and evolutionary consequences. Oikos 88: 442-447.
97. ZIMMERMAN, M., AND G. H. PYKE. 1988. Reproduction in Polemonium: assessing the factors limiting seed set. American Naturalist 131: 723-738.