Ecological Archives E091-014-A1

Silvana Martén-Rodríguez and Charles B. Fenster. 2010. Pollen limitation and reproductive assurance in Antillean Gesnerieae: a specialist vs. generalist comparison. Ecology 91:155–165.

Appendix A. Growth habit and floral characteristics and pollinator visitation frequency for 13 species of Gesneria and Rhytidophyllum from Puerto Rico and the Dominican Republic (Martén-Rodríguez et al. 2009).

Species

Growth habit

Corolla shape

Color

Time of dehiscence

Pollinators

No of visits/ flower/ day

 

         
2006
2007

Gesneria citrina Urban

Pendant shrub

Tubular

Yellow

Diurnal

Hummingbirds

0.4

0.3

Gesneria cuneifolia (A.P. de Candolle) Fritsch

Suffruticose rosette or small shrub

Tubular

Red

Diurnal

Hummingbirds

0.6

0.4

Gesneria pulverulenta Alain

Shrub

Tubular

Red

Diurnal

Hummingbirds

2.7

1.7

G. tuberosa ined.

Shrub

Tubular

Red

Diurnal

Hummingbirds†

-

-

Gesneria reticulata (Grisebach) Urban

Suffruticose rosette

Tubular

Red

Diurnal

Hummingbirds††

0.0

0.0

Rhytidophyllum asperum Alain

Shrub

Tubular

Orange

Diurnal

Hummingbirds

2.1

1.5

Gesneria fruticosa (Linnaeus) O. Kuntze

Large shrub

Campanulate 

Green with purple markings

Nocturnal

Bats

1.0

1.7

Gesneria pedunculosa (A.P. de Candolle) Fritsch

Shrub

Campanulate 

White-cream

Nocturnal

Bats

4.0

4.2

Gesneria quisqueyana Alain

Shrub

Subcampanulate

White-brownish green

Nocturnal

Bats

0.9

2.1

G. viridiflora
subsp. sintenisii (PR)

Shrub

Subcampanulate

Light green with
shades of brown

Nocturnal

Bats
Hummingbirds
Moths

1.3
3.5
3.0

3.6
2.4
3.6

Rhytidophyllum auriculatum W. Hooker

Shrub

Subcampanulate

Yellow with
dark red markings

Nocturnal

Bats
Hummingbirds

1.7
1.0

-
-

Rhytidophyllum vernicosum Urban & Ekman

Shrub

Subcampanulate

Light yellow

Nocturnal

Bats
Hummingbirds
Moths
Flies and bees

-
-
-
-

4.7
6.0
1.3
1.3

Rhytidophyllum vernicosum Urban & Ekman

Shrub

Subcampanulate

Yellow with
red markings

Diurnal and nocturnal

Hummingbirds
Moths
Flies and bees
 

7.1
10.4
1.5
5.1

1.7
0.5
 
 

† Visitation rates not quantified.
††  Only one hummingbird visit observed in 40 hours of observation over 3 years.

LITERATURE CITED

Martén-Rodríguez, S., A. Almarales-Castro, and C. B. Fenster. 2009. An evaluation of pollination syndromes in Caribbean Gesneriaceae: evidence for hummingbird, bat and generalized flowers. Journal of Ecology 97:348–359.


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