Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats

Tetrigidae are an ancient group of grasshoppers and, similar to many other insects, have associations and preferences for specific microhabitats and habitats. The ecology of pygmy grasshoppers in Southeast Asia is generally under studied, especially in threatened habitats such as freshwat...

Full description

Bibliographic Details
Main Authors: Ming Kai Tan, Huiqing Yeo, Wei Song Hwang
Format: Article
Language:English
Published: Pensoft Publishers 2017-06-01
Series:Journal of Orthoptera Research
Online Access:https://jor.pensoft.net/article/14551/
_version_ 1828296852194197504
author Ming Kai Tan
Huiqing Yeo
Wei Song Hwang
author_facet Ming Kai Tan
Huiqing Yeo
Wei Song Hwang
author_sort Ming Kai Tan
collection DOAJ
description Tetrigidae are an ancient group of grasshoppers and, similar to many other insects, have associations and preferences for specific microhabitats and habitats. The ecology of pygmy grasshoppers in Southeast Asia is generally under studied, especially in threatened habitats such as freshwater swamp forests. A study in Nee Soon Swamp forest, Singapore, was conducted to investigate association of limno-terrestrial pygmy grasshoppers with waterbodies and microhabitat. Specifically, we looked at the abundance and species assemblage of all pygmy grasshoppers. We correlated the abundance with major gradients of variation summarizing substrate and vegetation types along belt transects where sampling was performed. We found that pygmy grasshoppers in general are associated with wetter microhabitat conditions rather than the main streams in the swamp forest (i.e., water bodies). This is despite differences in microhabitat conditions of belt transects nearer to and further away from the main streams. We also found that pygmy grasshopper abundance is associated with the wetness of dicot leaf litter. We inferred that the abundance of food resources and suitability for egg development may explain their preference for wet microhabitats. We also found that the same patterns applied for adults and juveniles, suggesting that there is no demographic difference or ontogenetic shift in microhabitat association. Lastly, the adult assemblage can also be correlated to microhabitats. Based on our findings, we propose that pygmy grasshoppers can also be suitable bio-indicators for the freshwater swamp forest, owing to their sensitivity to microhabitat conditions.
first_indexed 2024-04-13T12:18:09Z
format Article
id doaj.art-3f36f8598e9c48f6ab43e53f196da067
institution Directory Open Access Journal
issn 1082-6467
1937-2426
language English
last_indexed 2024-04-13T12:18:09Z
publishDate 2017-06-01
publisher Pensoft Publishers
record_format Article
series Journal of Orthoptera Research
spelling doaj.art-3f36f8598e9c48f6ab43e53f196da0672022-12-22T02:47:18ZengPensoft PublishersJournal of Orthoptera Research1082-64671937-24262017-06-01261738010.3897/jor.26.1455114551Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitatsMing Kai Tan0Huiqing Yeo1Wei Song Hwang2National University of SingaporeNational Environment AgencyLee Kong Chian Natural History MuseumTetrigidae are an ancient group of grasshoppers and, similar to many other insects, have associations and preferences for specific microhabitats and habitats. The ecology of pygmy grasshoppers in Southeast Asia is generally under studied, especially in threatened habitats such as freshwater swamp forests. A study in Nee Soon Swamp forest, Singapore, was conducted to investigate association of limno-terrestrial pygmy grasshoppers with waterbodies and microhabitat. Specifically, we looked at the abundance and species assemblage of all pygmy grasshoppers. We correlated the abundance with major gradients of variation summarizing substrate and vegetation types along belt transects where sampling was performed. We found that pygmy grasshoppers in general are associated with wetter microhabitat conditions rather than the main streams in the swamp forest (i.e., water bodies). This is despite differences in microhabitat conditions of belt transects nearer to and further away from the main streams. We also found that pygmy grasshopper abundance is associated with the wetness of dicot leaf litter. We inferred that the abundance of food resources and suitability for egg development may explain their preference for wet microhabitats. We also found that the same patterns applied for adults and juveniles, suggesting that there is no demographic difference or ontogenetic shift in microhabitat association. Lastly, the adult assemblage can also be correlated to microhabitats. Based on our findings, we propose that pygmy grasshoppers can also be suitable bio-indicators for the freshwater swamp forest, owing to their sensitivity to microhabitat conditions.https://jor.pensoft.net/article/14551/
spellingShingle Ming Kai Tan
Huiqing Yeo
Wei Song Hwang
Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
Journal of Orthoptera Research
title Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
title_full Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
title_fullStr Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
title_full_unstemmed Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
title_short Ground dwelling pygmy grasshoppers (Orthoptera: Tetrigidae) in Southeast Asian tropical freshwater swamp forest prefer wet microhabitats
title_sort ground dwelling pygmy grasshoppers orthoptera tetrigidae in southeast asian tropical freshwater swamp forest prefer wet microhabitats
url https://jor.pensoft.net/article/14551/
work_keys_str_mv AT mingkaitan grounddwellingpygmygrasshoppersorthopteratetrigidaeinsoutheastasiantropicalfreshwaterswampforestpreferwetmicrohabitats
AT huiqingyeo grounddwellingpygmygrasshoppersorthopteratetrigidaeinsoutheastasiantropicalfreshwaterswampforestpreferwetmicrohabitats
AT weisonghwang grounddwellingpygmygrasshoppersorthopteratetrigidaeinsoutheastasiantropicalfreshwaterswampforestpreferwetmicrohabitats