Paper · 2009 · Current Science

Anemophily, anemochory, seed predation and seedling ecology of Shorea tumbuggaia Roxb. (Dipterocarpaceae), an endemic and globally endangered red-listed semi-evergreen tree species.

A. J. S. Raju; K. V. V. Ramana; Henry Jonathan

8
claims
8
verbatim quotes
7
citations
4
research areas
—
Not open access

Abstract

Shorea tumbuggaia is an endemic and globally endangered, red-listed, semi-evergreen tree species, restricted to the southern Eastern Ghats in Andhra Pradesh and Tamil Nadu. The flowering is ephemeral and also not an annual event. Massive blooming, drooping inflorescence with pendulous flowers, ample pollen production, gradual pollen release as a function of anther appendage, aerodynamic size of the pollen grains with reticulate exine and muri separated by lumina and strong protogyny ― all contribute to anemophily. The plant is self-compatible but there appears to be abortion of fruits from selfed-flowers. The fruits are large, winged and anemochorous. The fruits are attacked by an unidentified bruchid beetle prior to dispersal. In healthy fruits, the seed has no dormancy and it germinates as soon as it falls from the tree. The study reveals that non-annual, massive flowering, short flowering period, partial flowering at tree level, seed predation, short-distance seed dispersal, absence of seed dormancy, low rate of seedling establishment and inability of seedlings to compete with other plants collectively contributed to the occurrence of a small population of S. tumbuggaia in a restricted area of the Eastern Ghats forests and interplay of all these factors might have led to the 'endangered' status of this species.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

The species is restricted to the southern Eastern Ghats.

Taxon
Shorea tumbuggaiaShorea tumbuggaiae0
Outcome
restricted to the southern Eastern Ghatse0
Setting
Andhra Pradesh and Tamil Nadue0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Shorea tumbuggaia
Shorea tumbuggaia · Taxonarunagamuz · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Shorea tumbuggaia is an endemic and globally endangered, red-listed, semi-evergreen tree species, restricted to the southern Eastern Ghats in Andhra Pradesh and Tamil Nadu”

✓ located verbatim in the source · abstract, characters 0–171 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Flowering is brief and not annual.

Outcome
flowering is ephemeral and also not an annual evente0

Not reportedTaxon

Verbatim

e0

“The flowering is ephemeral and also not an annual event”

✓ located verbatim in the source · abstract, characters 173–228 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Floral and pollen traits contribute to wind pollination.

Outcome
anemophilye0
Qualifier
Massive blooming, drooping inflorescence with pendulous flowers, ample pollen production, gradual pollen release as a function of anther appendage, aerodynamic size of the pollen grains with reticulate exine and muri separated by lumina and strong protogynye0

Not reportedTaxon

Verbatim

e0

“Massive blooming, drooping inflorescence with pendulous flowers, ample pollen production, gradual pollen release as a function of anther appendage, aerodynamic size of the pollen grains with reticulate exine and muri separated by lumina and strong protogyny ― all contribute to anemophily”

✓ located verbatim in the source · abstract, characters 230–518 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The plant is self compatible but selfed fruit appears to abort.

Outcome
self-compatible but there appears to be abortion of fruits from selfed-flowerse0

Not reportedTaxon

Verbatim

e0

“The plant is self-compatible but there appears to be abortion of fruits from selfed-flowers”

✓ located verbatim in the source · abstract, characters 520–611 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruits are large, winged and dispersed by wind.

Outcome
large, winged and anemochorouse0

Not reportedTaxon

Verbatim

e0

“The fruits are large, winged and anemochorous”

✓ located verbatim in the source · abstract, characters 613–658 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

A bruchid beetle attacks fruit before dispersal.

Interactor
unidentified bruchid beetlee0herbivore
Outcome
fruits are attackede0

Not reportedTaxon

Verbatim

e0

“The fruits are attacked by an unidentified bruchid beetle prior to dispersal”

✓ located verbatim in the source · abstract, characters 660–736 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Healthy seeds lack dormancy and germinate immediately after falling.

Outcome
seed has no dormancy and it germinates as soon as it falls from the treee0

Not reportedTaxon

Verbatim

e0

“In healthy fruits, the seed has no dormancy and it germinates as soon as it falls from the tree”

✓ located verbatim in the source · abstract, characters 738–833 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Several reproductive and establishment constraints contribute to its small restricted population.

Taxon
S. tumbuggaiaShorea tumbuggaiae0
Outcome
small population of S. tumbuggaia in a restricted area of the Eastern Ghats forestse0
Qualifier
non-annual, massive flowering, short flowering period, partial flowering at tree level, seed predation, short-distance seed dispersal, absence of seed dormancy, low rate of seedling establishment and inability of seedlings to compete with other plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Shorea tumbuggaia
Shorea tumbuggaia · Taxonarunagamuz · CC0 · Wikimedia Commons ↗

Verbatim

e0

“non-annual, massive flowering, short flowering period, partial flowering at tree level, seed predation, short-distance seed dispersal, absence of seed dormancy, low rate of seedling establishment and inability of seedlings to compete with other plants collectively contributed to the occurrence of a small population of S. tumbuggaia in a restricted area of the Eastern Ghats forests”

✓ located verbatim in the source · abstract, characters 858–1241 · show in text ↑