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Orchid-pollinator interactions and potential vulnerability to biological invasion.

Chupp AD, Battaglia LL, Schauber EM, Sipes SD - AoB Plants (2015)

Bottom Line: Our results are supported by historical data that suggest P. palamedes and P. sennae are important pollinators of P. ciliaris.Although P. sennae may provide supplemental pollination service, this is likely constrained by habitat preferences that do not always overlap with those of P. cilaris.Observed declines of P. palamedes due to LWD could severely limit the reproductive success and persistence of P. ciliaris and similar orchid species populations.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Biology, Southern Illinois University, Carbondale, IL 62901, USA adam.chupp@gmail.com.

No MeSH data available.


Related in: MedlinePlus

Mean proportion of open flowers visited per visit (top) and mean number of flowers visited per visit (bottom) by P. palamedes (44 visits) and P. sennae (4 visits). Different letters indicate significant differences between species (P < 0.05).
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PLV099F3: Mean proportion of open flowers visited per visit (top) and mean number of flowers visited per visit (bottom) by P. palamedes (44 visits) and P. sennae (4 visits). Different letters indicate significant differences between species (P < 0.05).

Mentions: During our 3-day survey period, 11 total hours of observation time were recorded. Visitors were observed on 15 of the 24 plants that we monitored (48 visits total). Papilio palamedes (n = 44 visits) and Phoebis sennae, cloudless sulfur (n = 4 visits), were the only two species of visitor observed during this period (Table 1). The average number of visits plant−1 h−1 (±SE) was higher for P. palamedes (0.53 ± 0.12) than for P. sennae (0.03 ± 0.02) (t = 4.53, df = 23, P < 0.001). The mean number of flowers visited per visit was similar between P. palamedes (3.61 ± 0.42) and P. sennae (2.25 ± 0.95) (t = 1.32, df = 4, P = 0.26). The mean proportion of open flowers visited per visit was significantly higher for P. palamedes visits (0.28 ± 0.04) compared with P. sennae (0.11 ± 0.05) (Satterthwaite: t = 2.65, df = 7.3, P = 0.032) (Fig. 3). There was no apparent relationship between plant visitation (total number of visits to a given plant) and the number of plants in its group (r2 = 0.02, F1,22 = 0.48, P = 0.49). However, there was a marginally significant relationship (positive) between plant visitation and the number of open flowers on individual plants (r2 = 0.16, F1,22 = 4.21, P = 0.05).Table 1.


Orchid-pollinator interactions and potential vulnerability to biological invasion.

Chupp AD, Battaglia LL, Schauber EM, Sipes SD - AoB Plants (2015)

Mean proportion of open flowers visited per visit (top) and mean number of flowers visited per visit (bottom) by P. palamedes (44 visits) and P. sennae (4 visits). Different letters indicate significant differences between species (P < 0.05).
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4584961&req=5

PLV099F3: Mean proportion of open flowers visited per visit (top) and mean number of flowers visited per visit (bottom) by P. palamedes (44 visits) and P. sennae (4 visits). Different letters indicate significant differences between species (P < 0.05).
Mentions: During our 3-day survey period, 11 total hours of observation time were recorded. Visitors were observed on 15 of the 24 plants that we monitored (48 visits total). Papilio palamedes (n = 44 visits) and Phoebis sennae, cloudless sulfur (n = 4 visits), were the only two species of visitor observed during this period (Table 1). The average number of visits plant−1 h−1 (±SE) was higher for P. palamedes (0.53 ± 0.12) than for P. sennae (0.03 ± 0.02) (t = 4.53, df = 23, P < 0.001). The mean number of flowers visited per visit was similar between P. palamedes (3.61 ± 0.42) and P. sennae (2.25 ± 0.95) (t = 1.32, df = 4, P = 0.26). The mean proportion of open flowers visited per visit was significantly higher for P. palamedes visits (0.28 ± 0.04) compared with P. sennae (0.11 ± 0.05) (Satterthwaite: t = 2.65, df = 7.3, P = 0.032) (Fig. 3). There was no apparent relationship between plant visitation (total number of visits to a given plant) and the number of plants in its group (r2 = 0.02, F1,22 = 0.48, P = 0.49). However, there was a marginally significant relationship (positive) between plant visitation and the number of open flowers on individual plants (r2 = 0.16, F1,22 = 4.21, P = 0.05).Table 1.

Bottom Line: Our results are supported by historical data that suggest P. palamedes and P. sennae are important pollinators of P. ciliaris.Although P. sennae may provide supplemental pollination service, this is likely constrained by habitat preferences that do not always overlap with those of P. cilaris.Observed declines of P. palamedes due to LWD could severely limit the reproductive success and persistence of P. ciliaris and similar orchid species populations.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Biology, Southern Illinois University, Carbondale, IL 62901, USA adam.chupp@gmail.com.

No MeSH data available.


Related in: MedlinePlus