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 YUAN Yibin,MU Junpeng,PENG Youhong,et al.Comparative Study on Flower Trait, Pollinator Visitation Rate and Seed Production of Two Pedicularis Species[J].Chinese Journal of Applied & Environmental Biology,2011,17(04):467-472.[doi:10.3724/SP.J.1145.2011.00467]





Comparative Study on Flower Trait, Pollinator Visitation Rate and Seed Production of Two Pedicularis Species
(中国科学院成都生物研究所,中国科学院山地生态恢复与生物资源利用重点实验室 成都 610041)
YUAN Yibin MU Junpeng PENG Youhong SUN Shucun
(ECORES Lab, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China)
Pedicularis flower trait reproductive success mimicry alpine meadow Zoige Plateau
若尔盖高原的马先蒿属植物花部形态多样化,为探讨花冠差异是否与不同的繁殖对策相联系,在该区四川红原县分别对短管无喙的多齿马先蒿(Pedicularis polyodonta)和长管具喙的刺齿马先蒿(P. armata)的花部形态、昆虫访花频率和种子产出进行了比较研究. 多齿马先蒿的花冠呈“鸟头”状,多个花的集合与鸟群相似,因此特别检测了这种拟态是否具有规避鸟类和蝗虫或吸引蜂类传粉的功能. 研究发现,与刺齿马先蒿相比,多齿马先蒿的花冠较小、数量较少,但花蜜含量较高,因此蜂类访问频率较高,结实率高. 两种马先蒿的单花种子产量没有显著差异;多齿马先蒿单个个体的种子数量较多,但种子较小. 研究表明,为提高繁殖成功率,多齿马先蒿倾向于依赖花质量(如花蜜含量所指示)和种子数量,而刺齿马先蒿倾向于依赖花数量. 蝗虫对两种马先蒿的危害没有显著差异,说明多齿马先蒿的“鸟头”拟态不具有规避蝗虫的功能;在具有“鸟头”花冠的多齿马先蒿的样地,鸟类的拜访频率较刺齿马先蒿显著较少,但蜂类的访问频率显著较高,说明“鸟头”拟态可能与规避鸟类、保护传粉者有关,其拟态功能需要进一步实验验证. 图2 表1 参37
Pedicularis species display high variation in their flower sizes and shapes on alpine meadows. In order to explore whether the flower morphologies are associated with their reproductive strategies among the species, and to test whether the mimicry functioned to avoid birds and/or herbivore visit and attract insect pollinators, flower trait, nectar volume, pollinator visitation rate, and seed output were investigated for a short-tubed, toothed species (Pedicularis polyodonta) and a long-tube, beaked species (P. armata) on Zoige Plateau, Sichuan, China. In particular, flowers of the former species have bird head-like corollas, making the plants look like a flock of birds foraging on ground, and appearing to be a type of mimicry. It was found that P. polyodonta had fewer and smaller flowers with a larger volume of nectar, and its flowers were more frequently visited by bees and with more fruit set. P. polyodonta had more and smaller seeds than did P. armata. However, the two Pedicularis species did not differ in seed output per flower, suggesting that the reproductive successes of P. polyodonta and P. armata are primarily dependent upon flower quality (as indicated by nectar volume) and quantity (as indicated by flower number per individual), respectively. In addition, there was no significant difference in locusts’ feeding preference between P. polyodonta populations with or without the bird head-like corollars, suggesting that the mimicry did not prevent insect herbivores. Bird visitation rate was higher, but bee visitation rate was lower in P. armata than P. polyodonta stands, suggesting that the mimicry might be helpful to attracting bees but preventing birds visit. Fig 2, Tab 1, Ref 37


1 Lloyd DG. Selection of offspring size at independence and other size-versus-number strategies. Am Naturalist, 1987, 129 (6): 800~817
2 Grime JP. Plant Strategies and Vegetation Processes. London, UK: Wiley, 1979. 120~154
3 Galen C. Why do flowers vary? The functional ecology of variation in flower size and form within natural plant populations. Bioscience, 1999, 49 (8): 631~640
4 Morales CL, Traveset A. A meta-analysis of alien vs. native plants on pollinator visitation and reproductive success of co-flowering native plants. Ecol Lett, 2009, 12 (7): 716~728
5 Darwin CR. On the origin of species by means of natural selection or the preservation of favored races in the struggle for life. London, UK: John Murray, 1859
6 Shuttleworth A, Johnson SD. A key role for flower scent in a wasp-pollination system in Eucomis (Hyacinthaceae). Ann Bot, 2009, 103 (5): 715~725
7 Irwin RE, Adler LS, Agrawal AA. Community and evolutionary ecology of nectar. Ecology, 2004, 85 (6): 1477~1478
8 Abdala-Roberts L, Parra-Tabla V, Navarro J. Is floral longevity influenced by reproductive costs and pollination success in Cohniella ascendens (Orechidaceae)? Ann Bot, 2007, 100 (6): 1367~1371
9 Harder LD, Williams NM, Jordan GY, Nelson WA. The effects of floral design and display on pollinator economics and pollen dispersal. In: Chittka L, Thomson JD eds. Cognitive Ecology of Pollination. Cambridge, UK: Cambridge University Press, 2001. 297~317
10 Waser NM, Price MV. Pollinator choice and stabilizing selection for flower color in Delphinium nelsonii. Evolution, 1981, 35 (2): 376~390
11 Glover BJ. Understanding flowers and flowering. Oxford, UK: Oxford University Press, 2007. 181~191
12 Rausher MD. Evolutionary transitions in floral color. Int J Plant Sci, 2008, 169 (1): 7~21
13 Kunze J, Gumbert A. The combined effect of color and odor on flower choice behavior of bumble bees in flower mimicry systems. Behav Ecol, 2001, 12 (4): 447~456
14 Nilsson AL. Mimesis of bellflower (Campanula) by the red helleborrine orchid Cephalanthera rubra. Nature, 1983, 305: 799~800
15 Bernhardt P, Burns-Balogh P. Floral mimesis in Thelymitra nuda (Orchidaceae). Plant Syst Evol, 1986, 151: 187~202
16 Macior LW. The pollination ecology of Pedicularis in Colorado. Am J Bot, 1970, 57 (4):716~72
17 Macior LW, Tang Y, Zhang JC. Reproductive biology of Pedicularis (Scrophulariaceae) in the Sichuan Himalayas. Plant Spec Biol, 2001, 16 (1): 83~89
18 Macior LW. The pollination ecology of Pedicularis (Scrophulariaceae) in the Sierra Nevada of Califoinia. Bull Torrey Bot Club, 1977, 104 (2): 148~154
19 Wang H (王红), Li DZ (李德铢). A preliminary study of pollination biology of Pedicularis (Scrophulariaceae) in northwest Yunnan, China. Acta Bot Sin (植物学报), 1998, 40: 204~210
20 Pennell FW. The scrophulariaceae of the Western Himalayas. Acad Nat Sci Philadelphia Monogr, 1943, 5:113~157
21 He XY (何奕忻), Sun G (孙庚), Liu L (刘琳), Luo P (罗鹏), Wu N (吴宁), Luo GR (罗光荣). Effect of yak dung on high-frigid meadow soil nutrition in northwestern Sichuan, China. Chin J Appl Environ Biol (应用与环境生物学报), 2009, 15 (5): 666~671
22 Mu JP, Li GY, Sun SC. Petal color, flower temperature and behavior in an alpine annual herb, Gentiana leucomelaena (Gentianaceae). Arct Antarct Alp Res, 2010, 42 (2): 219~226
23 Li HL. Evolution in the flowers of Pedicularis. Evolution, 1951, 5 (2): 158~164
24 Arroyo MTK, Armesto JJ, Primack RB. Community studies in pollination ecology in the high temperate Andes of Central Chile. ⅡEffect of temperature on visitation rates and pollination possibilities. Plant Syst Evol, 1985, 149: 187~203
25 Rodríguez SM, Fenster CB. Pollination ecology and breeding systems of five Gesneria Species from Puerto Rico. Ann Bot, 2008, 102 (1): 23~30
26 Ashman TL, Cole DH, Bradburn M. Sex-differential resistance and tolerance to herbivory in a gynodioecious wild strawberry. Ecology, 2004, 85 (9): 2550~2559
27 Mitchell RJ. Heritability of nectar traits: Why do we know so little? Ecology, 2004, 85 (6): 1527~1533
28 Cunningham SA. Ecological constraints on fruit initiation by Calyptrogyne ghiesbreghtiana (Arecaceae): Floral herbivory, pollen availability, and visitation by pollinating bats. Amer J Bot, 1995, 82 (12): 1527~1536
29 Simpson BB, Neff JL. Evolution and diversity of floral rewards.In: Jones CE, Little RJ. Handbook of Experimental Pollination Biology eds. New York, USA: Van Nostrand Reinhold, 1983. 142~159
30 Harder LD, Barrett SCH. The energy cost of bee pollination for Pontederia cordata (Pontederiaceae). Funct Ecol, 1992, 6 (2): 226~233
31 Smith CC, Fretwell SD. The optimal balance between the size and number of offspring. Am Naturalist, 1974, 108: 499~506
32 Leishman MR, Wright IJ, Moles AT, Westoby M. The evolutionary ecology of seed size. In: Fenner M ed. Seeds, the Ecology of Regeneration in Plant Com-munities 2nd edn. Wallingford, UK: CABI Publishing, 2000. 31~57
33 Moles AT, Westoby M. Seed size and plant strategy across the whole life cycle. Oikos, 2006, 113: 91~105
34 Schiestl FP, Peakall R, Mant J. Chemical communication in the sexually deceptive orchid genus Cryptostylis. Bot J Linn Soc, 2004, 144 (2): 199~205
35 Clark JS, Ladeau S, Ibanez I. Fecundity of trees and the colonization-competition hypothesis. Ecol Monogr, 2004, 74 (3): 415~442
36 Schiestl FP. On the success of a Swindle: pollination by deception in orchids. Naturwissenschaften, 2005, 92 (6): 255~264
37 Fu TS (傅桐生), Song YJ (宋榆钧), Gao W (高玮). Fauna of china. Beijing, China: Science Press (北京: 科学出版社), 1998. 14: 13~23


更新日期/Last Update: 2011-08-16