10.5061/DRYAD.438FV47
Schmidt-Lebuhn, Alexander N.
Commonwealth Scientific and Industrial Research Organisation
Muller, Matthias
University of Zurich
Pozo, Paola
Thünen Institute of Forest Ecosystems; Eberswalde Germany
Encinas-Viso, Francisco
Commonwealth Scientific and Industrial Research Organisation
Kessler, Michael
University of Zurich
Data from: Pollen analogues are transported across greater distances in
bee-pollinated than in hummingbird-pollinated species of Justicia
(Acanthaceae)
Dryad
dataset
2019
Justicia boliviensis
powder dye
Justicia consanguinea
Justicia monopleurantha
Justicia kuntzei
Justicia tocantina
Justicia glutinosa
Justicia rusbyi
Justicia aequilabris
Justicia comata
Justicia oranensis
2019-01-29T18:25:26Z
2019-01-29T18:25:26Z
en
https://doi.org/10.1111/btp.12633
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Several hummingbird-pollinated plant lineages have been demonstrated to
show increased rates of diversification compared to related
insect-pollinated lineages. It has been argued that this pattern is
produced by a higher degree of specialization on part of both hummingbirds
and plants. We here test an alternative hypothesis: The often highly
territorial hummingbirds may on average carry pollen over shorter
distances than other pollinators and drive diversification by reducing
gene flow distances. We present experimental data from pollen analogue
tracking showing shorter dispersal distances in hummingbird- than in
bee-pollinated species among ten neotropical species of Justicia
(Acanthaceae).
Observations of powder dye carryover in flowers of Bolivian Justicia
(Acanthaceae)Observation data of stigmata carrying fluorescent powder dye
one day after application of dye to anthers of five flowers of a focus
plant, in 2 m distance classes from the focus plant (ten replicates).
Asterisks indicate hummingbird pollinated species, their absence indicates
bee pollinated
species.data_SchmidtLebuhn_etal_Justicia_powder_dye.tsvObserved flower
visitors to ten Bolivian species of Justicia (Acanthaceae)Pollinator
observations in ten species of Bolivian Justicia to establish pollination
syndromes. Visitors were registered for one visit whenever they entered
the observed area and visited the first flower, and not counted again
while they stayed on the patch, regardless of the number of flowers
visited. As hummingbirds avoid approaching human observers too closely but
visited flowers at ca. 2 m distance from the observers, a hummingbird
visit was scored for every time the bird foraged in the perimeter of the
patch. Visitor behaviour was classified as “using the flowers as
intended”, i.e. entering the corolla orifice to probe for nectar, “pollen
thief”, i.e. emptying the anthers without touching the stigma, or “nectar
thief”, i.e. piercing the corolla base or using holes made by other such
thieves. In the first case, it was noted whether the visitor would
actually touch the reproductive organs, in which case they were considered
a pollinator. If a pollinator showed two different types of behaviour,
both were recorded and the predominant behaviour was noted as such, but no
percentages were
recorded.data_SchmidtLebuhn_etal_Justicia_flower_visitors.tsv
Bolivia