10.6084/m9.figshare.9414917.v1
Duong Thi Thuy Le
Duong Thi Thuy
Le
Jodi J.L. Rowley
Jodi J.L.
Rowley
Dao Thi Anh Tran
Dao Thi Anh
Tran
Huy Duc Hoang
Huy Duc
Hoang
The diet of a forest-dependent frog species, Odorrana morafkai (Anura: Ranidae), in relation to habitat disturbance: supplementary material
Brill Online
2019
amphibian declines
deforestation
Southeast Asia
tropical forest
Ecology not elsewhere classified
2019-08-27 06:40:38
Journal contribution
https://brill.figshare.com/articles/journal_contribution/The_diet_of_a_forest-dependent_frog_species_Odorrana_morafkai_Anura_Ranidae_in_relation_to_habitat_disturbance_supplementary_material/9414917
<p>While deforestation is one of the greatest drivers of
biodiversity loss, our understanding of the effects of habitat modification on
species is limited. We investigated the diet of a forest-dwelling frog species,
Morafka’s frog (<i>Odorrana morafkai</i>),
in a highland forest in Vietnam in relation to habitat disturbance, sex and
season. <a>We surveyed the species at 45 sites in forest of
varying disturbance and examined </a>its
diet using stomach flushing, estimating prey availability via trapping.
We detected significantly fewer <i>O.
morafkai</i> in highly disturbed habitats compared to moderately disturbed or
non-disturbed habitats.<i> </i>We revealed
that <i>O. morafkai</i> is a dietary
generalist, identifying 28 prey types, primarily invertebrates. Prey
composition, the number of prey
items per stomach and prey volume per stomach <a>did not vary between disturbance levels</a>. Diet did not
vary significantly between sexes, except that <a>females
had a</a> higher prey volume. Prey composition in the species varied
between seasons, with Coleoptera and Orthoptera dominating the diet in the rainy season
and Lepidoptera in the dry season. The number of prey items per stomach and
prey volume were
significantly higher in the rainy season. <a>There was a
significant correlation between prey availability and diet composition. The low
number of <i>O. morafkai</i> detected in
highly disturbed habitats suggests that this habitat</a> may
not be
optimal for the
species,
despite having a generalist feeding strategy and presumed high mobility.
<a>This study provides a window into the impact of an
increasing threat, habitat disturbance, on forest-dependent amphibian species. </a></p>