scholarly journals Effects of floral display size on male and female reproductive success in Mimulus ringens

2011 ◽  
Vol 109 (3) ◽  
pp. 563-570 ◽  
Author(s):  
Jeffrey D. Karron ◽  
Randall J. Mitchell
Keyword(s):  
Reproductive Success ◽  
Display Size ◽  
Floral Display ◽  
Female Reproductive Success ◽  
Male And Female ◽  
Floral Display Size ◽  
Mimulus Ringens

scholarly journals Male and female reproductive success in natural and anthropogenic populations of Malaxis monophyllos (L.) Sw. (Orchidaceae)

2015 ◽  
Vol 39 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Edyta Jermakowicz ◽  
Beata Ostrowiecka ◽  
Izabela Tałałaj ◽  
Artur Pliszko ◽  
Agata Kostro-Ambroziak
Keyword(s):  
Reproductive Success ◽  
Fruit Set ◽  
Natural Populations ◽  
Floral Display ◽  
Natural Habitats ◽  
Female Reproductive Success ◽  
Male And Female ◽  
Demographic Processes ◽  
Preliminary Study ◽  
Effective Pollinators

Abstract In the presented study, male and female reproductive success was analyzed in relation to the population size, floral display and pollinators’ availability in natural and anthropogenic populations of the orchid Malaxis monophyllos (L.) Sw. Our results indicated significant differences between all investigated populations in parameters of floral display, including heights and number of flowers per inflorescence, as well the number of flowering individuals and their spatial structure. Additionally, populations differed both in male (pollinia removal) and female (fruit set) reproductive success, but only the fruit set clearly differentiated anthropogenic and natural populations. Despite the average flower number per plant being significantly higher in two of the anthropogenic populations, it was not related to the fruits set, which was significantly lower there. Moreover, our preliminary study concerning the potential pollinators of M. monophyllos showed a higher contribution of flies in natural habitats than in anthropogenic ones. Thus, we can suspect that the main factors influencing the level of female reproductive success in M. monophyllos populations are abundance of effective pollinators, as well as flower visitors, which may have resulted in a different level of pollen discounting in populations. Therefore, further studies concerning breeding system and pollination as important forces that shape demographic processes in M. monophyllos populations are necessary. Our results also indicate that suitable conservation methods in M. monophyllos should always include the preservation of potential pollinators, especially in these new, secondary habitats.

scholarly journals The influence of floral display size on selfing rates in Mimulus ringens

Heredity ◽  
2003 ◽  
Vol 92 (3) ◽  
pp. 242-248 ◽  
Author(s):  
J D Karron ◽  
R J Mitchell ◽  
K G Holmquist ◽  
J M Bell ◽  
B Funk
Keyword(s):  
Display Size ◽  
Floral Display ◽  
Floral Display Size ◽  
Mimulus Ringens

An experimental study of floral display size and reproductive success in Viburnum opulus: importance of grouping

1991 ◽  
Vol 69 (2) ◽  
pp. 394-399 ◽  
Author(s):  
Pam G. Krannitz ◽  
M. Anwar Maun
Keyword(s):  
Experimental Study ◽  
Reproductive Success ◽  
Key Words ◽  
Small Groups ◽  
Display Size ◽  
Significant Proportion ◽  
Floral Display ◽  
Flower Number ◽  
Viburnum Opulus ◽  
Floral Display Size

Two components of the floral display of Viburnum opulus L. were manipulated to determine their effect on fruit initiation and maturation. We altered the size of the floral display by planting individual shrubs in groups of 1, 5, or 10 in 1985 and in groups of 2 or 6 in 1986. In addition, we changed inflorescence size by altering the number of sterile accessory flowers per inflorescence: 0, 4, or untreated in 1985 and 0 or untreated in 1986. The sterile-flower treatment did not explain a significant proportion of the variation in fruit initiation or maturation. In contrast, the plant-grouping treatment was significant in 1985 but not in 1986. The number and proportion of fruits initiated were higher in larger groups of plants than in small groups in 1985 (P < 0.0001 for analyses performed at group and plant levels). The proportion of fruits initiated in group sizes 1, 5, and 10 was 6.9, 15.0, and 22.7% per plant, respectively, and 4.3, 9.1, and 19.4% per inflorescence, respectively. The larger groups did not initiate or mature proportionally more fruits in 1986. Twice as much rain fell in 1986 as in 1985, and shrubs produced more fruits overall (32.2% fruit initiation versus 11% in 1985), but it is not clear why group size differences did not have an effect on fruit initiation and maturation in 1986. Within the plant-grouping treatment fruit initiation and maturation were always significantly correlated with flower number (P < 0.0001) in both 1985 and 1986, but the increase in the number of fruits initiated was not proportional to the increase in flower number. Key words: floral display size, fruit initiation, plant grouping, pollination, Viburum opulus.

Floral Display in Phyla Incisa: Consequences for Male and Female Reproductive Success

Evolution ◽  
1988 ◽  
Vol 42 (3) ◽  
pp. 505 ◽  
Author(s):  
Mitchell B. Cruzan ◽  
Paul R. Neal ◽  
Mary F. Willson
Keyword(s):  
Reproductive Success ◽  
Floral Display ◽  
Female Reproductive Success ◽  
Male And Female

scholarly journals The influence of Mimulus ringens floral display size on pollinator visitation patterns

2004 ◽  
Vol 18 (1) ◽  
pp. 116-124 ◽  
Author(s):  
R. J. Mitchell ◽  
J. D. Karron ◽  
K. G. Holmquist ◽  
J. M. Bell
Keyword(s):  
Display Size ◽  
Floral Display ◽  
Pollinator Visitation ◽  
Floral Display Size ◽  
Mimulus Ringens

scholarly journals FLORAL DISPLAY IN PHYLA INCISA : CONSEQUENCES FOR MALE AND FEMALE REPRODUCTIVE SUCCESS

Evolution ◽  
1988 ◽  
Vol 42 (3) ◽  
pp. 505-515 ◽  
Author(s):  
Mitchell B. Cruzan ◽  
Paul R. Neal ◽  
Mary F. Willson
Keyword(s):  
Reproductive Success ◽  
Floral Display ◽  
Female Reproductive Success ◽  
Male And Female

Floral display influences male and female reproductive success of the deceptive orchid Phaius delavayi

2011 ◽  
Vol 296 (1-2) ◽  
pp. 21-27 ◽  
Author(s):  
P. Li ◽  
B. Q. Huang ◽  
R. W. Pemberton ◽  
Y. B. Luo ◽  
J. Cheng
Keyword(s):  
Reproductive Success ◽  
Floral Display ◽  
Female Reproductive Success ◽  
Male And Female

IMPACT OF INSECT POLLINATOR GROUP AND FLORAL DISPLAY SIZE ON OUTCROSSING RATE

Evolution ◽  
2006 ◽  
Vol 60 (2) ◽  
pp. 234-246 ◽  
Author(s):  
Johanne Brunet ◽  
Heather R. Sweet
Keyword(s):  
Display Size ◽  
Outcrossing Rate ◽  
Floral Display ◽  
Insect Pollinator ◽  
Floral Display Size
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