[
Andrewartha, H.G. & Birch, L.C. 1954. The Distribution and Abundance of Animals. - Univ. Chicago Press, Chicago.
]Search in Google Scholar
[
Antonovics, J. & Ellstrand N.C. 1984. Experimental studies of the evolutionary significance of sex. I. A test of the frequency-dependent selection hypothesis. - Evolution 38: 103-115.10.1111/j.1558-5646.1984.tb00263.x
]Search in Google Scholar
[
Antonovics, J. & Ellstrand N.C. 1985. The fitness of dispersed progeny: experimental studies with Anthoxanthum odoratum. - In: Jacquard, P., Heim, G. & Antonovics, J. (eds), Genetic differentiation and dispersal in plants, Springer, Berlin, pp. 369-382.
]Search in Google Scholar
[
Armstrong, R.A. 1976. Fugitive species: Experiments with fungi and some theoretical considerations. - Ecology 57: 953-963.10.2307/1941060
]Search in Google Scholar
[
Baker, H.G. & Stebbins, G.L. (eds) 1965. The Genetics of colonizing species. - Academic Press, New York.
]Search in Google Scholar
[
Barbault, R., Blandin, P. & Meyer, J.A. 1980. Recherches d’écologie théorique. Les stratégies adaptatives. - Maloine, Paris.
]Search in Google Scholar
[
Bell, G. 1982. The masterpiece of nature. The evolution and genetics of sexuality. - Croom Helm, London.
]Search in Google Scholar
[
Bell, G. 1985. Two theories of sex and variation. - Experientia 41: 1235-1245.10.1007/BF01952066
]Search in Google Scholar
[
Bell, G. 1988. Uniformity and diversity in the evolution of sex. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass, pp. 126-138.
]Search in Google Scholar
[
Bell, G. & Koufponaou, V. 1986. The cost of reproduction. - Oxf. Surveys evol. Biol. 3: 83-131.
]Search in Google Scholar
[
Berg, R.Y. 1983. Plant distribution as seen from plant dispersal: general principles and basic modes of plant dispersal. - Sonderbände naturw. Ver. Hamb. 7: 13-36.
]Search in Google Scholar
[
Bernstein, H. 1983. Recombinational repair may be an important function of sexual reproduction. - BioScience 33: 326-331.10.2307/1309320
]Search in Google Scholar
[
Bernstein, H., Hopf, F.A. & Michod, R.E. 1987. The molecular basis for the evolution of sex. - Adv. Genetics 24: 323-370.10.1016/S0065-2660(08)60012-7
]Search in Google Scholar
[
Bernstein, H., Byerly, H.C., Hopf, F.A. & Michod, R.E. 1985. Genetic damage, mutation and the evolution of sex. - Science 229: 1277-1281.
]Search in Google Scholar
[
Bierzychudek, P. 1985. Patterns in plant parthenogenesis. - Experientia 41: 1255-1264.10.1007/BF01952068
]Search in Google Scholar
[
Bierzychudek, P. 1987. Resolving the paradox of sexual reproduction: a review of experimental results. - In: Stearns, S.C. (ed.): The evolution of sex and its consequences, Birkhauser, Basel, pp. 163-174.
]Search in Google Scholar
[
Blondel, J. 1976. Stratégies démographiques et successions écologiques. - Bull. Soc. zool. France 101: 671-693.
]Search in Google Scholar
[
Bowler, P.A. & Rundel, P.W. 1975. Reproductive strategies in lichens. - Bot. J. Linn. Soc. 70: 325-340.10.1111/j.1095-8339.1975.tb01653.x
]Search in Google Scholar
[
Bremermann, H.J. 1980. Sex and polymorphism as strategies in host-pathogen interactions. - J. theor. Biol. 87: 671-702.10.1016/0022-5193(80)90111-3
]Search in Google Scholar
[
Boyce, M.S. 1984. Restitution of r- and K-selection as a model of density-dependent natural selection. - A. Rev. Ecol. Syst. 15: 427-447.10.1146/annurev.es.15.110184.002235
]Search in Google Scholar
[
Bujarski, J.J. & Kaesberg, P. 1986. Genetic recombination between RNA components of a multipartite plant virus. - Nature 321: 528-532.10.1038/321528a070953702423879
]Search in Google Scholar
[
Butcher, A.C., Croft, J. & Grindle, M. 1971. Use of genotype-environment interaction analysis in the study of natural populations of Aspergillus nidulans. - Heredity 29: 263-283.10.1038/hdy.1972.92
]Search in Google Scholar
[
Calow, P. & Sibly, R. 1987. Conflicting predictions concerning clonal reproduction? - Funct. Ecol. 1: 161-163.
]Search in Google Scholar
[
Case, M.L. & Taper, T.J. 1986. On the coexistence and coevolution of asexual and sexual competitors. - Evolution 40: 366-387.10.1111/j.1558-5646.1986.tb00478.x
]Search in Google Scholar
[
Caswell, H. 1982. Stable structure and reproductive value for populations with complex life cycles. - Ecology 63: 1223-1231.10.2307/1938847
]Search in Google Scholar
[
Caswell, H. 1983. Phenotypic plasticity in life history traits: demographic effects and evolutionary consequences. - Am. Zoologist 23: 35-46.10.1093/icb/23.1.35
]Search in Google Scholar
[
Caswell, H. 1985. The evolutionary demography of clonal reproduction. - In: Jackson, J.B.C., Buss, L.W., & Cook, R.E. (eds.), Population biology and evolution of clonal organisms, Yale Univ. Press, New Haven, pp. 187-224.
]Search in Google Scholar
[
Caswell, H. 1989. Life-history strategies. - In: Cherret, J.M. (ed.): Ecological concepts, Blackwell, Oxford, pp. 385-407.
]Search in Google Scholar
[
Cech, T.R. 1986. RNA as an enzyme. - Scient. am. 255: 5: 64-75.10.1038/scientificamerican1186-64
]Search in Google Scholar
[
Charlesworth, B. 1980. Evolution in age-structured populations. - Camb. Univ. Press, Cambridge.
]Search in Google Scholar
[
Charnov, E.L. 1982. The theory of sex allocation. - Princeton Univ. Press, Princeton.10.1515/9780691210056
]Search in Google Scholar
[
Cody, M.L. 1966. A general theory of clutch size. - Evolution 20: 174-184.10.1111/j.1558-5646.1966.tb03353.x
]Search in Google Scholar
[
Cohen, D. 1966. Optimizing reproduction in a randomly varying environment. - J. theor. Biol. 12: 119-129.10.1016/0022-5193(66)90188-3
]Search in Google Scholar
[
Cohen, J. 1977. Reproduction. - Butterworths, London.
]Search in Google Scholar
[
Cole, G.T. & Kendrick, B. 1981. Biology of conidial fungi. - Academic Press, New York.10.1016/B978-0-12-179501-6.50008-9
]Search in Google Scholar
[
Cole, G.T. & Kendrick, B. & Samson, R.A. Patterns of development in conidial fungi. - Pitman, London.
]Search in Google Scholar
[
Comfort, A. 1979. The biology of senescence. - Churchill Livingstone, Edinburgh.
]Search in Google Scholar
[
Comins, H.N., Hamilton, W.D. & May, R.M. 1980. Evolutionary stable dispersal strategies. - J. theor. Biol. 82: 205-230.10.1016/0022-5193(80)90099-5
]Search in Google Scholar
[
Cooke, R.C. & Rayner, A.D.M. 1984. Ecology of saprophytic fungi. - Longman, New York.
]Search in Google Scholar
[
Crawley, M.J. 1986. Life history and environment - In: Crawley, M.J. (ed.), Plant ecology, Blackwell, Oxford, pp. 253-290.
]Search in Google Scholar
[
Crow, J.F. 1988. The importance of recombination. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass., pp. 56-73.
]Search in Google Scholar
[
Crow, J.F. & Kimura, M. 1965. Evolution in sexual and asexual populations. - Am. Nat. 99: 439-450.10.1086/282389
]Search in Google Scholar
[
Crow, J.F. & Kimura, M. 1970. An introduction to population genetics theory. - Harper & Row, New York.
]Search in Google Scholar
[
Dahl, E. 1957. Mountain vegetation in South Norway and its relation to the environment. -Skr. norske Vidensk.-Akad. Oslo. mat.-naturv. Klassc. 1956: 3: 1-374.
]Search in Google Scholar
[
Darwin, C. R. 1859. On the origin of species by means of natural selection. - Murray, London.
]Search in Google Scholar
[
Darwin, C. R. 1878. The effects of cross and self fertilization in the vegetable kingdom ed. 2. -Murray, London.10.5962/bhl.title.104481
]Search in Google Scholar
[
Devoret, R. 1988. Molecular aspects of genetic recombination. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass., pp. 24-44.
]Search in Google Scholar
[
Dingle, H. & Hegmann, J.P. (eds) 1982. Evolution and genetics of life histories. - Springer, Berlin.10.1007/978-1-4684-6270-8
]Search in Google Scholar
[
Dougherty, E.C. 1955. Comparative evolution and the origin of sexuality. - Syst. Zool. 4: 145-169, 190.
]Search in Google Scholar
[
Doust, J.L. & Doust, L.L. (eds) 1988. Plant reproductive ecology. Patterns and strategies. -Oxford Univ. Press, Oxford.
]Search in Google Scholar
[
Du Rietz, G.E. 1924. Die Soredien und Isidien der Flechten. - Svensk bot. Tidskr. 18: 371-396.
]Search in Google Scholar
[
Du Rietz, G.E. 1925. Die europäischen Arten der Gyrophora “Anthracina”-Gruppe. - Ark. Bot. k. svenska VetenskAkad. 19: 12: 1-14.
]Search in Google Scholar
[
Du Rietz, G.E. 1931. Studier över vinddriften på snöfält i de skandinaviska fjällen. Ett bidrag till de nordiska fjäll-lavarnas spridningsbiologi. - Bot. Not. 1931: 31-44.
]Search in Google Scholar
[
Eigen, M., Gardiner, W., Schuster, P. & Winkler-Oswatitsch, R. 1981. The origin of genetic information. - Scient. am. 244: 4: 88-118.10.1038/scientificamerican0481-886164094
]Search in Google Scholar
[
Ellis, M.B. 1971. Dematiaceous Hyphomycetes. - Commonwealth mycol. Inst., Kew, Surrey.
]Search in Google Scholar
[
Ellis, M.B. 1976. More Dematiaceous Hyphomycetes. - Commonwealth mycol. Inst., Kew, Surrey.
]Search in Google Scholar
[
Ellstrand, N.C. & Antonovics, J. 1985. Experimental studies of the evolutionarty significance of sexual reproduction. II. A test of the density-dependent selection hypothesis. -Evolution 39: 657-666.10.1111/j.1558-5646.1985.tb00402.x28561968
]Search in Google Scholar
[
Ellstrand, N.C. & Antonovics, J. & Roose, M.L. 1987. Patterns of genotypic diversity in clonal plant species. - Am. J. Bot 74: 123-131.10.1002/j.1537-2197.1987.tb08586.x
]Search in Google Scholar
[
Esser, K. & Kuenen, R. 1967. Genetics of fungi. - Springer, Berlin.10.1007/978-3-642-86814-6
]Search in Google Scholar
[
Ewich, B. 1985. Chemosystematische Untersuchungen an derFlechtenfamilie Umbilicariaceae Fée. - Thesis, Univ. Essen, Essen.
]Search in Google Scholar
[
Fahselt, D. 1989. Enzyme polymorphism in sexual and asexual umbilicate lichens from Sverdrup Pass, Ellesmere Island, Canada. - Lichenologist 21: 279-285.10.1017/S0024282989000496
]Search in Google Scholar
[
Feige, G.B., Posner, B. & Geyer, M. 1987. Zur Chemotaxonomie von Umbilicaria sect. Anthracinae. - Herzogia 7: 649-674.10.1127/herzogia/7/1987/649
]Search in Google Scholar
[
Felsenstein, J. 1974. The evolutionary advantage of recombination. - Genetics 78: 737-756.10.1093/genetics/78.2.73712132314448362
]Search in Google Scholar
[
Ferris, J.P. & Usher, D.A. 1988. Origins of life. - In: Zubay, G. (ed.), Biochemistry, Macmillian, New York, pp. 1120-1151.
]Search in Google Scholar
[
Filson, R.B. 1987. Studies in Antarctic lichens. 6. Further notes on Umbilicaria. - Muelleria 6: 335-347.10.5962/p.171880
]Search in Google Scholar
[
Fincham, J.R.S., Day, P.R. & Radford, A. 1979. Fungal genetics, ed. 4. - Blackwell, Oxford.
]Search in Google Scholar
[
Fisher, R.A. 1930. The genetical theory of natural selection. - Clarendon Press, Oxford.10.5962/bhl.title.27468
]Search in Google Scholar
[
Frank, S.A. 1986. Dispersal polymorphisms in subdivided populations. - J. theor. Biol. 122: 303-309.10.1016/S0022-5193(86)80122-9
]Search in Google Scholar
[
Frey, E. 1929. Beiträge zur Biologie, Morphologie und Systematik der Umbilicariaceen. -Hedwigia 69: 219-252.
]Search in Google Scholar
[
Frey, E. 1931. Weitere Beiträge zur Kenntnis der Umbilicariaceen. - Hedwigia 71: 94-119.
]Search in Google Scholar
[
Frey, E. 1933. Familie Umbilicariaceae. - Rabenhorst’s Kryptogamen-Flora von Deutschland, Österreich und der Schweiz, ed. 2. 9: IV /1: 203-426.
]Search in Google Scholar
[
Frey, E. 1936. Vorarbeiten zu einer Monographie der Umbilicariaceen. - Ber. schweiz. bot. Ges. 45: 198-230.
]Search in Google Scholar
[
Frey, E. 1949. Neue Beiträge zu einer Monographie des Genus Umbilicaria. - Ber. schweiz. bot Ges. 59: 427-470.
]Search in Google Scholar
[
Fripp, Y.J. & Caten, C.E. 1971. Genotype-environmental interaction in Schizophyllum commune. - Heredity 27: 393-407.10.1038/hdy.1971.1035290722
]Search in Google Scholar
[
Futuyma, D.J. 1986. Evolutionary biology, ed. 2. - Sinauer, Sunderland, Mass.
]Search in Google Scholar
[
Gadgil, M. & Bossert, H. 1970. Life history consequences of natural selection. - Am. Nat. 104: 1-2410.1086/282637
]Search in Google Scholar
[
Gadgil, M. & Bossert, H. & Solbrig, Q.T. 1972. The concept of r- and K-selection: evidence from wild flowers and some theoretical considerations. - Am. Nat. 106: 14-31.10.1086/282748
]Search in Google Scholar
[
Gaümann, E. A. 1964. Die Pilze, ed. 5. - Birkhäuser, Basel.10.1007/978-3-0348-6860-0
]Search in Google Scholar
[
Gerritson, J. 1980. Sex and parthenogenesis in sparse populations. - Am. Nat. 115: 718-742.10.1086/283594
]Search in Google Scholar
[
Ghiselin, M.T. 1974. The economy of nature and the evolution of sex. - Univ. Calif. Press, Berkeley.
]Search in Google Scholar
[
Glesener, R.R. and Tilman, D. 1978. Sexuality and the components of environmental uncertainty: clues from geographic parthenogenesis in terrestrial animals. - Am. Nat 112: 659-673.10.1086/283308
]Search in Google Scholar
[
Glück, H. 1899. Entwurf zu einer vergleichenden Morphologie der Flechten-Spermogonien. - Verhandl. naturhist.-med. Ver. Heidelberg, N. F. 6: 81-216.
]Search in Google Scholar
[
Gould, S.J. & Lewontin, R. 1979. The spandrels of San Marco and the Panglossean paradigm: a critique of the adaptationist programme. - Proc. r. Soc. Lond. Ser. B 205: 581-598.10.1098/rspb.1979.008642062
]Search in Google Scholar
[
Grime, J.P. 1977. Evidence for the existence of three primary strategies in plants and its relevance to ecological and evolutionary theory. - Am. Nat. 111: 1169-1194.10.1086/283244
]Search in Google Scholar
[
Grime, J.P. 1979. Plant strategies and vegetation processes. - Wiley, New York.
]Search in Google Scholar
[
Gustafsson, Å. 1946. Apomixis in higher plants. 1. The mechanism of apomixis. - Acta Univ. lund. 42: 3: 1-67.
]Search in Google Scholar
[
Gustafsson, Å. 1947a. Apomixis in higher plants. 2. The causal aspect of apomixis. - Acta Univ. lund. 43: 3: 69-179.
]Search in Google Scholar
[
Gustafsson, Å. 1947b. Apomixis in higher plants. 3. Biotype and species formation. - Acta Univ. lund. 43: 12: 183-370.
]Search in Google Scholar
[
Hageman, C. & Fahselt, D. 1984. Intraspecific variability of izozymes of the lichen Umbilicaria mammulata. - Can. J. Bot. 62: 617-623.10.1139/b84-093
]Search in Google Scholar
[
Hageman, C. & Fahselt, D. & Fahselt, D. 1986a. Constancy of enzyme electrofocusing patterns in a stand of the lichen Umbilicaria mammulata. - Can. J. Bot. 64: 1928-1934.10.1139/b86-256
]Search in Google Scholar
[
Hageman, C. & Fahselt, D. & Fahselt, D. 1986b. A comparison of isozyme patterns of morphological variants in the lichen Umbilicaria muhlenbergii (Ach.) Tuck. - Bryologist 89: 285-290.10.2307/3243200
]Search in Google Scholar
[
Hageman, C. & Fahselt, D. & Fahselt, D. 1990a. Enzyme electromorph variation in the lichen family Umbilicariaceae: within-stand polymorphism in umbilicata lichens of eastern Canada. - Can. J. Bot. 68: 2636-2643.10.1139/b90-333
]Search in Google Scholar
[
Hageman, C. & Fahselt, D. & Fahselt, D. 1990b. Multiple enzyme forms as indicators of functional sexuality in the lichen Umbilicaria vellea. - Bryologist 93: 389-394.10.2307/3243602
]Search in Google Scholar
[
Hakulinen, R. 1962. Die Flechtengattung Umbilicaria in Ostfennoskandien und angrenzenden Teilen Norwegens. - Annis bot. Soc. zool. bot. fenn. V anamo 32: 6: 1-87.
]Search in Google Scholar
[
Hale, M.E. 1965a. Studies on the Pannelia borreri group. - Svensk bot. Tidskr. 59: 37-48.
]Search in Google Scholar
[
Hale, M.E. 1965b. A monograph on Pannelia subgenus Amphigymnia. - Contt-. U.S. nat. Herb. 36: 193-358.
]Search in Google Scholar
[
Haldane, J.B.S. 1937. The effect of variation on fitness. - Am. Nat. 71: 337-349.10.1086/280722
]Search in Google Scholar
[
Halvorson, H.O. & Monroy, A. (eds) 1985. The origins and evolution of sex. - Liss, New York.
]Search in Google Scholar
[
Hamilton, W.D. 1966. The moulding of senescence. - J. theor. Biol. 12: 12-45.10.1016/0022-5193(66)90184-6
]Search in Google Scholar
[
Hamilton, W.D. 1980. Sex versus non-sex versus parasite. - Oikos 35: 282-290.10.2307/3544435
]Search in Google Scholar
[
Hannemann, B. 1973. Anhangsorgane der Flechten, ihre Structuren und ihre systematische Verteilung. - Biblthca lichenol. 1: 1-128.
]Search in Google Scholar
[
Harper, J. 1977. Population biology of plants. - Academic Press, London.
]Search in Google Scholar
[
Harper, J. & Ogden, J. 1970. The reproductive strategy of higher plants. I. The concept of strategy with special reference to Senecio vulgaris L. - J. Ecol. 58: 681-698.10.2307/2258529
]Search in Google Scholar
[
Harper, J. & White, J. 1971. The dynamics of plant populations. - Proc. adv. Study Inst. Dynamics Numbers Popul. (Osterbreek), pp. 41-63.
]Search in Google Scholar
[
Hart, A. & Begon, M. 1982. The status of general reproductive-strategy theories, illustrated in winkles. - Oecologia 52: 37-42.
]Search in Google Scholar
[
Hasenhüttl, G. & Poelt, J. 1978. Über die Brutkömer bei der Flechtengattung Umbilicaria. -Ber. dt. bot. Ges. 91: 275-296.
]Search in Google Scholar
[
Hastie, A.C. 1981. The genetics of conidial fungi. - In: Cole, G. T. & Kendrick, B. (eds), Biology of conidial fungi. Vol. 2, Academic Press, New York, pp. 511-547.
]Search in Google Scholar
[
Hawking, S. 1988. A brief history of time. From the big bang to black holes. - Bantam Press, London.
]Search in Google Scholar
[
Hawksworth, D.L., Sutton, B.C. & Ainsworth, G.C. 1983. Ainsworth & Bisby’s dictionary of the fungi, ed. 7. - Commonwealth mycol. Inst, Kew, Surrey.
]Search in Google Scholar
[
Hebert, P.D.N. 1987. Genotypic characteristics of cyclic parthenogens and their obligately asexual derivatives. - In: Stearns, S. C. (ed.), The evolution of sex and its consequences, - Birkhauser, Basel, pp. 175-195.
]Search in Google Scholar
[
Henssen, A. 1970. Die Apothecienentwicklung bei Umbilicaria Hoffm. emend. Frey. - Ber. dt. bot. Ges., N. F. 4: 103-126.
]Search in Google Scholar
[
Henssen, A. 1981. The Lecanoralean Centrum. - In: Reynolds, D.R. (ed.), Ascomycete systematics, the luttrelian concept, Springer, Berlin, pp. 138-234.
]Search in Google Scholar
[
Hestmark, G. 1987. Thalloconidia in the genus Umbilicaria. - Cand. scient. Thesis, Bot. Gdn Mus., Univ. Oslo, Oslo, unpubl.
]Search in Google Scholar
[
Hickey, D.A. 1982. Selfish DNA: a sexually-transmitted nuclear parasite. - Genetics 101: 519-531.10.1093/genetics/101.3-4.51912018756293914
]Search in Google Scholar
[
Hickey, D.A. & Rose, M.R. 1988. The role of gene tranfer in the evolution of eukaryotic sex. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass. pp. 161-175.
]Search in Google Scholar
[
Hughes, R.N. 1989. A Functional biology of clonal animals. - Chapman & Hall, London.
]Search in Google Scholar
[
Ingold, C.T. 1971. Fungal spores. Their liberation and dispersal. - Clarendon Press, Oxford.
]Search in Google Scholar
[
Jackson, J.B.C., Buss, L.W., & Cook, R.E. (eds) 1985. Population biology and evolution of clonal organisms. - Yale Univ. Press, New Haven.10.2307/j.ctt2250w9n
]Search in Google Scholar
[
Jaenike, J. 1978. An hypothesis to account for the maintenance of sex within populations. -Evol. Theor. 3: 191-194.
]Search in Google Scholar
[
Janex-Favre, M.C. 1977. Le développement et la structure des pycnides de l’Umbilicaria cinereorufescens. - Rev. bryol. lichénol. 43: 1-18.
]Search in Google Scholar
[
Jinks, J.L. 1952. Heterokaryosis: a system of adaptation in wild fungi. - Proc. r. Soc. Lond. Ser. B 140: 83-99.10.1098/rspb.1952.004613003914
]Search in Google Scholar
[
Jinks, J.L. 1966. Extranuclear inheritance. - In: Ainsworth, G.C. & Sussman, A.S. (eds), The fungi. An advanced treatise. Vol. 2, Academic Press, New York, pp. 619-660.
]Search in Google Scholar
[
Kelley, S.E., Antonovics, J. & Schmitt, J. 1988. A test for the short-term advantage of sexual reproduction. - Nature 331: 714-716.10.1038/331714a0
]Search in Google Scholar
[
Kendrick, B. (ed.) 1971. Taxonomy of the Fungi Imperfecti. - Univ. Toronto Press, Toronto.10.3138/9781487589165
]Search in Google Scholar
[
Kendrick, B. (ed.) 1979. The whole fungus. Vol. 1-2. - Natl Mus. Can., Ottawa.
]Search in Google Scholar
[
Kershaw, K.A. 1985. Physiological ecology of lichens. - Camb. Univ. Press, Cambridge.
]Search in Google Scholar
[
Koella, J.C. 1988. The tangled bank: The maintenance of sexual reproduction through competitive interactions. - J. evol. Biol. 1: 95-116.10.1046/j.1420-9101.1988.1020095.x
]Search in Google Scholar
[
Kondrashov, A.S. 1982. Selection against harmful mutations in large sexual and asexual populations. - Genet. Res. 40: 325-332.10.1017/S00166723000191947160619
]Search in Google Scholar
[
Kondrashov, A.S. 1984. Deleterious mutations as an evolutionary factor. I. The advantage of recombinations. - Gene. Res. 44: 199-217.10.1017/S00166723000263926510714
]Search in Google Scholar
[
Kniep, H. 1928. Die Sexualität der niederen Planzen. - Fischer, Jena.
]Search in Google Scholar
[
Krabbe, G. 1882. Entwicklung, Sprossung und Theilung einiger Flechtenapothecien (Schluss). - Bot. Z. 40: 135-142.
]Search in Google Scholar
[
Krog, H. 1973. On Umbilicaria pertusa Rass. and some related lichen species. - Bryologist 76: 550-554.10.2307/3241418
]Search in Google Scholar
[
Krog, H. & Swinscow, T.D.V. 1986. The lichen genera Lasallia and Umbilicaria in East Africa. - Nord. J. Bot. 6: 75-85.10.1111/j.1756-1051.1986.tb00861.x
]Search in Google Scholar
[
Larson, D.W. 1981. Differential wetting in lichens and mosses: the role of morphology. -Bryologist 84: 1-15.10.2307/3242973
]Search in Google Scholar
[
Larson, D.W. & Carey, C.K. 1986. Phenotypic variation within “individual” lichen thalli. - Am. J. Bot 73: 214-223.10.1002/j.1537-2197.1986.tb08522.x
]Search in Google Scholar
[
Law, R. 1985. Evolution in a mutualistic environment. - In: Boucher, D.H. (ed.), The biology of mutualism: ecology and evolution. - Croom Helm, Beckenham.
]Search in Google Scholar
[
Law, R. & Lewis, D.H. 1983. Biotic environments and the maintenance of sex - some evidence from mutualistic symbiosis. - Biol. J. Linn. Soc. 20: 249-271.10.1111/j.1095-8312.1983.tb01876.x
]Search in Google Scholar
[
Lawrey, J.D. 1980. Sexual and asexual reproductive patterns in Parmotrema (Parmeliaceae) that correlate with latitude. - Bryologist 83: 344-350.10.2307/3242445
]Search in Google Scholar
[
Letrouit-Galinou, M.A. 1973. Sexual reproduction. - In: Ahmadjian, V. & Hale, M.E. (eds), The lichens, Academic Press, New York. pp. 59-90.
]Search in Google Scholar
[
Levin, B.R. 1988. The evolution of sex in bacteria. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass., pp. 194-211.
]Search in Google Scholar
[
Levin, D.A. 1975. Pest pressure and recombination systems in plants. - Am. Nat. 109: 437-451.10.1086/283012
]Search in Google Scholar
[
Lewis, W.M. Jr 1983. Interruption of synthesis as a cost of sex in small organisms. - Am. Nat. 121: 825-834.10.1086/284106
]Search in Google Scholar
[
Lewis, W.M. Jr 1987. The cost of sex. - In: Stearns, S.C. (ed.): The evolution of sex and its consequences. - Birkhäuser, Basel, pp. 33-57.10.1007/978-3-0348-6273-8_2
]Search in Google Scholar
[
Lindau, G. 1899. Beiträge zur Kenntnis der Gattung Gyrophora. - Botanische Untersuchungen Simon Schwendener dargebracht. Festschrift., Berlin·, pp.19-36.
]Search in Google Scholar
[
Lindsay, W. L. 1859. Memoires on the spermogones and pycnides of lichens. I. Higher lichens. - Trans. r. Soc. Edinburgh 22: 101-303.10.1017/S0080456800031355
]Search in Google Scholar
[
Llano, G.A. 1950. A monograph of the lichen family Umbilicariaceae in the Western Hemisphere. - Office Naval Res., Dept Navy, Washington, D. C.
]Search in Google Scholar
[
Llano, G.A. 1965. Review of Umbilicaria Hoffm., and of the Lasallias. - Hvalrådets Skr. sci. Results mar. biol. Res. 48: 112-124.
]Search in Google Scholar
[
Lloyd, D. G. 1980. Benefits and handicaps of sexual reproduction. - Evol. Biol. 13: 69-111.10.1007/978-1-4615-6962-6_2
]Search in Google Scholar
[
Lloyd, D. G. 1985. Parallels between sexual strategies and other allocation strategies. - Experientia 41: 1277-1285.10.1007/BF01952070
]Search in Google Scholar
[
Low, K.B. (ed.) 1988. The Recombination of genetic material. - Academic Press, San Diego.
]Search in Google Scholar
[
MacArthur, R.H. 1972. Geographical ecology: patterns in the distribution of species. - Harper & Row, New York.
]Search in Google Scholar
[
MacArthur, R.H. & Wilson, E.O. 1967. The theory of island biogeography. - Princeton Univ. Press, Princeton.
]Search in Google Scholar
[
Margulis, L. & Sagan, D. 1990. Origins of sex. Three billion years of genetic recombination, ed. 2. - Yale Univ. Press, New Haven.
]Search in Google Scholar
[
Maynard Smith, J. 1964. Group selection and kin selection. - Nature 210: 1145-1147.10.1038/2011145a0
]Search in Google Scholar
[
Maynard Smith, J. 1971. What use is sex? - J. theor. Biol. 30: 319-335.10.1016/0022-5193(71)90058-0
]Search in Google Scholar
[
Maynard Smith, J. 1978. The Evolution of sex. - Cambridge Univ. Press, Cambridge.
]Search in Google Scholar
[
Maynard Smith, J. 1982. Evolution and the theory of games. - Cambridge Univ. Press, Cambridge.
]Search in Google Scholar
[
Maynard Smith, J. 1988. The Evolution of recombination. - In: Michod, R.E. & Levin, B.R. (eds), The evolution of sex. An examination of current ideas, Sinauer, Sunderland, Mass. pp. 106-125.
]Search in Google Scholar
[
Maynard Smith, J. & Price, G.R. 1973. The logic of animal conflict. - Nature 246: 15-18.10.1038/246015a0
]Search in Google Scholar
[
Mayr, E. 1983. How to carry out the adaptationist program? - Am. Nat. 121: 324-334.10.1086/284064
]Search in Google Scholar
[
Minks, A. 1900. Analysis der Flechtengattung Umbilicaria. - Mém. Herb. Boissier 22: 1-74.
]Search in Google Scholar
[
Mischler, B.D. 1988. Reproductive ecology of bryophytes. - In: Doust, J.L. & Doust, L.L. (eds), Plant reproductive ecology: patterns and strategies, Oxford Univ. Press, Oxford.
]Search in Google Scholar
[
Muller, H.J. 1932. Some genetic aspects of sex. - Am. Nat. 66: 118-138.10.1086/280418
]Search in Google Scholar
[
Muller, H.J. 1958. Evolution by mutation. - Bull. am. math. Soc. 64: 137-160.10.1090/S0002-9904-1958-10191-3
]Search in Google Scholar
[
Muller, H.J. 1964. The relation of recombination to mutational advance. - Mutation Res. 1: 2-9.10.1016/0027-5107(64)90047-8
]Search in Google Scholar
[
Murphy, G.I. 1968. Pattern in life history and the environment. - Am. Nat. 102: 391-403.10.1086/282553
]Search in Google Scholar
[
Orr-Weaver, T.L. & Szostak, J.W. 1985. Fungal recombination. - Microbiol. Rev. 49: 33-58.10.1128/mr.49.1.33-58.19853730163884994
]Search in Google Scholar
[
Parry, G.D. 1981. The meanings of r- and K-selection. - Oecologia 48: 260-264.10.1007/BF0034797428309810
]Search in Google Scholar
[
Partridge, L. 1989. An experimentalist’s approach to the role of costs of reproduction in the evolution of life-histories. - In: Grubb, P.J. & Whittaker, J.B. (eds), Toward a more exact ecology, Blackwell, Oxford, pp. 231-246.
]Search in Google Scholar
[
Partridge, L. & Harvey, P.H. 1988. The ecological context of life history evolution. - Science 241: 1449-1455.10.1126/science.241.4872.144917790040
]Search in Google Scholar
[
Pianka, E.R. 1970. On r- and K-selection. - Am. Nat. 104: 592-597.10.1086/282697
]Search in Google Scholar
[
Pirozynski, K.A. & Weresub, L.K. 1979. A biogeographic view of the history of Ascomycetes and the development of their pleomorphism. - In: Kendrick, B. (ed.), The whole fungus, Vol. 1, Natl Mus. Can., Ottawa, pp. 93-123.
]Search in Google Scholar
[
Poelt, J. 1970. Das Konzept der Artenpaare bei den Flechten. - Ber. dt. bot. Ges., N. F. 4: 187-198.
]Search in Google Scholar
[
Poelt, J. 1977a. Die Gattung Umbilicaria. (Umbilicariaceae). - Khumbu Himal. Ergebn. ForschUntem. Nepal Himalaya 6: 397-435.
]Search in Google Scholar
[
Poelt, J. 1977b. Die Gattung Lasallia. (Umbilicariaceae). - Khumbu Himal. Ergebn. ForschUntem. Nepal Himalaya 6: 394-396.
]Search in Google Scholar
[
Pontecorvo, G. 1956. The parasexual cycle in fungi. - A. Rev. Microbiol. 10: 393-400.10.1146/annurev.mi.10.100156.002141
]Search in Google Scholar
[
Posner, B. 1990. Untersuchungen zur Sekundärstoffverteilung im Flechtenthallus dargestellt an den Gattungen Lasallia, Lobaria und Usnea. - Thesis, Univ. Essen, Essen.
]Search in Google Scholar
[
Price, M.V. & Waser, N.M. 1982. Population structure, frequency-dependent selection and the maintenance of sexual reproduction. - Evolution 36: 35-43.
]Search in Google Scholar
[
Pugh, G.J.F. 1980. Strategies in fungal ecology. - Trans. br. mycol. Soc. 75: 1-14.10.1016/S0007-1536(80)80188-4
]Search in Google Scholar
[
Raper, J.R. 1966. Life cycles, basic patterns of sexuality, and sexual mechanisms. - In: Ainsworth, G.C. & Sussman, A.S. (eds), The Fungi. An advanced treatise. Vol. 2, Academic Press, New York, pp. 473-511.
]Search in Google Scholar
[
Richards, A.J. 1986. Plant breeding systems. - Allen & Unwin, London.
]Search in Google Scholar
[
Rose, M.R. 1983. The contagion mechanism for the origin of sex. - J. theor. Biol. 101: 137-146.10.1016/0022-5193(83)90277-1
]Search in Google Scholar
[
Sackville Hamilton, N.R., Schmid, B. and Harper, J.L. 1987. Life-history concepts and the population biology of clonal organisms. - Proc. r. Soc. Lond. Ser. B 232: 35-57.10.1098/rspb.1987.0060
]Search in Google Scholar
[
Sancho, L.G. and Crespo, A. 1989. Lasallia hispanica and related species. - Lichenologist 21: 45-58.10.1017/S002428298900006X
]Search in Google Scholar
[
Schade, A. 1955. Zur sächsichen Flechtenflora insbesondere aus der Familie der Umbilicariaceen. Zwei Beiträge. - Nova Acta Leopoldina, N. F. 17: 119: 195-280.
]Search in Google Scholar
[
Schaerer, L.E. 1823. Umbilicariae Helveticae. - Mus. helv. Hist.-Nat. (Partie Bot.) 1: 85-114.
]Search in Google Scholar
[
Schaffer, W.M. & Gadgil, M.D. 1975. Selection for optimal life histories in plants. - In: Cody, M. & Diamond, J. (eds), The ecology and evolution of communities, Harvard Univ. Press, Cambridge, Mass., pp. 142-157.
]Search in Google Scholar
[
Scholander, P.F. 1934. On the apothecia in the lichen family Umbilicariaceae. - Nyt Mag. Naturvidensk. 75: 1-31.
]Search in Google Scholar
[
Schmitt, J. & Antonovics, J. 1986. Experimental studies of the evolutionary significance of sexual reproduction. IV. Effect of neighbor relatedness and aphid infestation on seedling performance. - Evolution 40: 830-836.10.1111/j.1558-5646.1986.tb00542.x
]Search in Google Scholar
[
Shields, W.M. 1982. Philopatry, inbreeding and the evolution of sex. - State Univ. New York Press, Albany.
]Search in Google Scholar
[
Sibly, R.M. & Calow, P. 1982. Asexual reproduction in Protozoa and invenebrates. -J theor. Biol. 96: 401-424.10.1016/0022-5193(82)90118-7
]Search in Google Scholar
[
Sibly, R.M. & Calow, P. 1985. Classification of habitats by selection pressure, a synthesis of life-cycle and r/K-theory. - In: Sibly, R.M. & Smith, R.H. (eds), Behavioural ecology, Blackwell Oxford, pp. 75-90.
]Search in Google Scholar
[
Sibly, R.M. & Calow, P. 1986. Physiological ecology of animals: an evolutionary approach. - Blackwell, Oxford.
]Search in Google Scholar
[
Silander, J.A. 1985. Microevolution in clonal plants. - In: Jackson, J.C.B., Buss, L.W. & Cook, R.E. (eds): Population biology and evolution of clonal organisms, Yale Univ. Press, New Haven, pp. 107-152.
]Search in Google Scholar
[
Slatkin, M. 1985. Somatic mutations as an evolutionary force. - In: Greenwoo4 P.J., Harvey, P.H., & Slatkin, M. (eds), Evolution: essays in honor of John Maynard Smith, Cambridge University Press, Cambridge, pp. 19-30.
]Search in Google Scholar
[
Southwood, T.R.E. 1977. Habitat, the templet of ecological strategies. - J. anim. Ecol. 46: 337-365.
]Search in Google Scholar
[
Southwood, T.R.E. 1988. Tactics, strategies and templets. - Oikos 52: 3-18.
]Search in Google Scholar
[
Southwood, T.R.E., May, R.M., Hassell, M.R. & Conway, G.R. 1974. Ecological strategies and population parameters. - Am. Nat. 108: 791-804.10.1086/282955
]Search in Google Scholar
[
Stahl, E. 1877. Beiträge zur Entwickelungsgeschichte der Flechten. Heft 1. Ueber die geschlechtliche Fortplanzung der Collemaceen. - Felix, Leipzig.10.5962/bhl.title.160242
]Search in Google Scholar
[
Steams, S.C. 1976. Life history tactics: a review of the ideas. - Q. Rev. Biol. 51: 3-47.10.1086/409052778893
]Search in Google Scholar
[
Steams, S.C. 1977. The evolution of life history traits: a critique of the theory and a review of the data. - A. Rev. Ecol. S yst. 8: 145-171.10.1146/annurev.es.08.110177.001045
]Search in Google Scholar
[
Steams, S.C. 1980. A new view of life-history evolution. - Oikos 35: 266-281.10.2307/3544434
]Search in Google Scholar
[
Steams, S.C. 1985. The evolution of sex and the role of sex in evolution. - Experientia 41: 1231-1235.10.1007/BF01952065
]Search in Google Scholar
[
Steams, S.C. (ed.) 1987. The evolution of sex and its consequences. - Birkhauser, Basel.10.1007/978-3-0348-6273-8
]Search in Google Scholar
[
Stebbins, G.L. 1950. Variation and evolution in plants. - Columbia Univ. Press., New York.10.7312/steb94536
]Search in Google Scholar
[
Stebbins, G.L. 1971. Chromosomal evolution in higher plants. - Arnold, London.
]Search in Google Scholar
[
Sugiyama, J. (ed.) 1987. Pleomorphic fungi: The diversity and its taxonomic implications. -Elsevier, Tokyo.
]Search in Google Scholar
[
Suomalainen, E. 1950. Parthenogenesis in animals. - Adv. Genet. 3: 199-253.10.1016/S0065-2660(08)60086-3
]Search in Google Scholar
[
Suomalainen, E., Saura, A. & Lokki, J. 1976. Evolution of parthenogenetic insects. - Evol. Biol. 9: 209-257.10.1007/978-1-4615-6950-3_5
]Search in Google Scholar
[
Sutton, B.C. 1980. The Coelomycetes. - Commonwealth mycol. Inst., Kew, Surrey.
]Search in Google Scholar
[
Taylor, P.O. 1988. An inclusive fitness model for dispersal of offspring. - J. theor. Biol. 130: 363-378.10.1016/S0022-5193(88)80035-3
]Search in Google Scholar
[
Templeton, A.R. 1982. The prophecies of parthenogenesis. - In: Dingle, H. & Hegmann, J.P. (eds), Evolution and genetics of life histories, Springer, Berlin.10.1007/978-1-4684-6270-8_6
]Search in Google Scholar
[
Tschermak-Woess, E. 1988. The algal partner. - In: Galun, M. (ed.), CRC handbook of lichenology. Vol. 1, CRC Press, Boca Raton, Florida, pp. pp. 39-94.
]Search in Google Scholar
[
Tulasne, L.-R. 1852. Mémoire pour servir a l’histoire organographique et physiologique des lichens. - Ann. sci. nat. Bot. Biol. veg., Sér. 3 17: 5-128, 153-249.
]Search in Google Scholar
[
Tulasne, L.-R. & Tulasne, C. 1861-1865. Selecta fungorum carpologia. - Paris.
]Search in Google Scholar
[
Turian, G. & Hohl, R.R. (eds) 1981. The fungal spore: morphogenetic controls. - Academic Press, New York.
]Search in Google Scholar
[
Vandel, A. 1931. La Parthénogénese. - Dione, Paris.
]Search in Google Scholar
[
Van Valen, L. 1973. A new evolutionary law. - Evol. Theor. 1: 1-30.
]Search in Google Scholar
[
Vobis, G. 1977. Studies on the gennination of lichen conidia. - Lichenologist 9: 131-136.10.1017/S002428297700022X
]Search in Google Scholar
[
Vobis, G. 1980. Bau und Entwicklung der Flechten-Pycnidien und ihrer Conidien. - Biblthca lichenol. 14: 1-141.
]Search in Google Scholar
[
Vrijenhoek, R.C. 1989. Genotypic diversity and coexistence among sexual and clonal lineages of Poeciliopsis. - In: Otte, D. & Endler, J.A. (eds), Speciation and its consequences, Sinauer, Sunderland, Mass., pp. 386-400.
]Search in Google Scholar
[
Weber, D.J. & Hess, W.M. 1976. The fungal spore. Form and function. - Wiley, New York.
]Search in Google Scholar
[
Weinberg, S. 1977. The first three minutes. - Basic books, New York.
]Search in Google Scholar
[
White, M.J.D. 1973. Animal cytology and evolution, ed. 3. - Cambridge Univ. Press, Cambridge.
]Search in Google Scholar
[
White, M.J.D. 1978. Modes of speciation. - Freeman, San Francisco.
]Search in Google Scholar
[
Williams, G.C. 1966. Adaptation and natural selection. - Princeton Univ. Press, Princeton.
]Search in Google Scholar
[
Williams, G.C. 1971. Introduction. - In: Williams, G.C. (ed.), Group selection, Atherton, Chicago, pp. 1-15.
]Search in Google Scholar
[
Williams, G.C. 1975. Sex and evolution. - Princeton Univ. Press, Princeton.
]Search in Google Scholar
[
Williams, G.C. & Mitton, J.B. 1973. Why reproduce sexually? - J. theor. Biol. 39: 545-554.10.1016/0022-5193(73)90067-2
]Search in Google Scholar
[
Williams, R. R. 1970. Factors affecting pollination in fruit trees. - In: Luckwill, L.C. & Cutting, C.V. (eds), Physiology of tree crops, Academic Press, London, pp. 193-207.
]Search in Google Scholar
[
Wright, S. 1931. Evolution in Mendelian populations. - Genetics 16: 97-159.10.1093/genetics/16.2.97
]Search in Google Scholar
[
Wright, S. 1932. The role of mutation, inbreeding, crossbreeding and selection in evolution. - Proc. 6th int. Congr. Genet. 1: 356-366.
]Search in Google Scholar
[
Young, J.P.W. 1981. Sib competition can favour sex in two ways. - J. theor. Biol. 88: 755-756.10.1016/0022-5193(81)90249-6
]Search in Google Scholar
