+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Pollination ecology of epipactis palustris orchidaceae

, : Pollination ecology of epipactis palustris orchidaceae. Botaniska Notiser 131(3): 355-368

Observations on the pollination of E. palustris (L.) Crantz, mainly from the island of Oland, southern Sweden, are reported. A broad spectrum of insects feeding on the nectar was recorded. Ants, bumble-bees and hover-flies were the most frequent visitors, but generally played a minor role as pollinators. Solitary wasps (Hymenoptera, Eumenidae) were the most important pollen vectors, although only present at low frequencies. Ants were important pollinators in 1 locality. Entomogamy prevails and the frequency of visits is much lower if the plant is growing in association with entomophilous competitors. Deposition and frequency of pollinaria, morphology and action of the hinged labellum, and the time of flowering all suggest that E. palustris is adapted to pollination by solitary wasps, perhaps primarily to males of the genus Eumenes Latr. The hinge seems to be an adaptation to the peculiar form of the 1st abdominal segment of these wasps. The structure of the labellum obliges the wasps to perform an involuntary balance-act which obviously results in efficient contact between head and column. No support was found for Darwin's theory that the distal part of labellum actively throws the insect against the rostellum. Honey-bees seldom acted as pollen vectors and do not fit the flowers morphologically.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 006139080

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Calder, P. C., 2001: The ratio of n-6 to n-3 fatty acids in the diet: impact on T lymphocyte function. This article reviews the effects of n-6 and n-3 polyunsaturated fatty acids on T lymphocyte proliferation, T lymphocyte-derived cytokine production and measures of the cell-mediated immune response in vivo. Also, the effects of these fatty acids o...

Tartar A., 1986: Specific covalent fixation of chelating agents on peptides. The synthesis of two selectively protected bifunctional analogues of ethylenediaminetetra-acetic acid (EDTA) is described. In these analogues the four carboxy groups involved in chelation are protected as benzyl or t-butyl esters, while the fifth...

Hoop, R. K., 1992: Persistence and vertical transmission of chicken anaemia agent in experimentally infected laying hens. Irrespective of route of infection and age of hens at the time of infection (at hatching or 10 or 35 weeks) the chicken anaemia agent (CAA) was excreted via faeces repeatedly during the first 5 weeks after infection. Eggs, embryos and chicks of he...

Kang, Jeong-Hun; Asai, Daisuke; Oishi, Jun; Kawamura, Kenji; Toita, Riki; Jiang, Yuhua; Mori, Takeshi; Niidome, Takuro; Katayama, Yoshiki, 2008: Role of plasma as activator and cofactor in phosphorylation catalyzed by protein kinase C. The purpose of this study was to investigate whether plasma can influence the phosphorylation of protein kinase C (PKC). Lysate samples were prepared from normal skin or melanoma tissue and were reacted with a PKC peptide substrate in the presence...

Mongereau Noeel, 1965: Sur la validite de l'espece Cellaria mutabilis Canu, 1909 (Bryozoa-Cheilostomata); etude statistique et comparaison avec Cellaria fistulosa Auct. Statistical analysis of a Cellaria mutabilis population from Helvetian (Miocene) Molasse deposits of the Pontlevoy region, west France, and comparison with a C. fistula population show that C. mutabilis is a variety of C. fistula.

Uhlenbruck G., 1986: The role of phosphate groups in the interaction of human c reactive protein with galactan polysaccharides. Human C-reactive protein (CRP) shows binding specificities for phosphate monoesters, polycations and for several other biological macromolecules lacking these ligands. We report here that the formerly observed interaction of CRP with snail galacta...

Mitchell Stanley N., 1960: Use of engineering geology in the Colorado Department of Highways. Geological Society of America Bulletin 71(12, Part 2): 1931

Stoddart D.R., 1992: Scientific studies in the southern cook islands background and bibliography. Atoll Research Bulletin (190)

Anonymous, 2012: Sequential RNA degradation pathways provide a fail-safe mechanism to limit the accumulation of unspliced transcripts in Saccharomyces cerevisiae. The nuclear exosome and the nonsense-mediated mRNA decay (NMD) pathways have been implicated in the degradation of distinct unspliced transcripts in Saccharomyces cerevisiae. In this study we show that these two systems can act sequentially on spe...

Sim D.A., 1984: Analysis of prognostic variables which influence early and long term response of pet animal tumors to radiation alone and radiation plus heat. Vaeth, Jd. . Frontiers Of Radiation Therapy And Oncology, Vol. 18. Hyperthermia And Radiation Therapy Chemotherapy In The Treatment Of Cancer; 18th Annual San Francisco Cancer Symposium, San Francisco, Calif., Usa, Mar. 5-6, . Vii 196p. S. Karger: Basel, Switzerland; New York, N.y., Usa. Illus. P47-55