Intermediate Roundleaf Bat (Hipposideros larvatus) lives in tropical rainforest across Southeast Asia. It feeds on insects and spiders. Its conservation status is Least Concern.
Fascinating facts about the Intermediate Roundleaf Bat
- A meticulous gut-check of eight intermediate roundleaf bats yielded 40 fecal pellets, and the analysis showed their meals are dominated by beetles, 55.2% of the diet was Coleoptera, followed by 23.2% moths, 10.1% true bugs, 9.2% flies and a modest 2.1% wasps and bees. This heavy beetle bias.
- Bats make up roughly one-fifth of all mammals, with over 1,400 species worldwide, yet their gut parasites are barely charted. So far scientists have described more than 40 Eimeria species from bats, and a recent Thai survey screened 96 guano DNA samples collected at six sites. Among the seven bat species identified was the Hipposideros larvatus complex, highlighting how even common bats host a hidden diversity of microscopic hitchhikers.
- Genetic sleuthing of those bat-derived Eimeria parasites uncovered five distinct genetic clusters, including two brand-new haplogroups that stand apart from known lineages. The phylogenies also showed bat-borne Eimeria are polyphyletic, intermixing with rodent parasites, which hints at ancient host-switching or shared ancestry. The broad spread of Haplogroup 1 suggests a recent population boom, likely driven by the parasite's ability to jump among hosts and thrive in new environments.
- more than half of what H. larvatus eats are beetles. The study notes that both H. larvatus and its cousin H. cineraceus can act as effective pest controllers by trimming populations of Lepidoptera (rice stem borer) and Hemiptera (leafhoppers).
- The eight bats studied were split into two clear groups based on sex and whether they were lactating or not, showing that reproductive state influences who's out hunting. Such division can affect diet composition.
At a glance
RangeSoutheast Asia
HabitatTropical rainforest
DietInsects and spiders
About the Intermediate Roundleaf Bat
In the sweltering twilight of the tropical forest, the intermediate roundleaf bat emerges as a whisper of wings, its delicate form undulating through the shadows with an ethereal grace. As it navigates the dense understorey, its large, round ears twitch with an almost imperceptible sensitivity, drinking in the faint echoes that reveal the hidden world of insects and fruit. With each fluttering beat, this unassuming creature weaves a intricate tapestry of sound and motion, a testament to the remarkable adaptability of life in the dark, vibrant heart of the jungle.
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