DOI: 10.5061/dryad.t1g1jwtch
title: Data from: Bioacoustic assessment of mangrove health: Influence of habitat characteristics on bird richness

description: Mangroves play a vital role in coastal ecosystems, providing numerous
 ecosystem functions and services as well as supporting high levels of
 biodiversity. Using a bioacoustic approach, we assessed the influence of
 mangrove habitat variables on birds in four sites in Peninsular Malaysia.
 We set up 20 bioacoustic audio recorders across Telok Gong, Kapar
 Tambahan, Banjar Utara Forest Reserves, and Kuala Selangor Nature Park.
 The recorders operated for 30 min every hour over a period of 24 hr for
 seven consecutive days. We assessed the habitat characteristics at each
 site by establishing one 20 m x 20 m quadrat at each of the recording
 points. Generalized Linear Mixed Models indicated that the percentage of
 canopy cover, average tree height, forest age, number of saplings, forest
 size, and ground cover positively influenced bird richness. Our findings
 highlight the importance of maintaining these habitat features to support
 higher bird species richness in mangroves. This study demonstrated the
 possible use of bioacoustics to assess the mangrove restoration recovery
 progress via birds as bioindicators.
description: The dataset was collected during a bioacoustic monitoring study
 with habitat assessments conducted at 20 sampling points across four
 sites. At each point, a 20 m × 20 m quadrat was divided into four 10 m ×
 10 m subquadrats for detailed measurements of vegetation characteristics,
 including canopy cover, ground vegetation cover, average tree height
 (using a clinometer), and sapling counts. Canopy and ground cover
 percentages were calculated using Canopeo and GLAMA mobile applications,
 respectively. Average tree heights were derived from representative trees
 within each height class, and forest size was included to account for its
 influence on bird species richness. The data was then processed using an R
 software.
description: # Data from: Bioacoustic assessment of mangrove health: Influence of
 habitat characteristics on bird richness
 [https://doi.org/10.5061/dryad.t1g1jwtch](https://doi.org/10.5061/dryad.t1g1jwtch) ## Description of the data and file structure The dataset was collected during a bioacoustic monitoring study with habitat assessments at 20 sampling points across four sites. Each 20 m × 20 m quadrat was divided into four 10 m × 10 m subquadrats for detailed vegetation measurements, including canopy cover, ground cover, average tree height (using a clinometer), and sapling counts. Canopy and ground cover percentages were calculated with the Canopeo and GLAMA apps, respectively. Average tree heights were derived from representative trees in each height class, and forest size was included to assess its impact on bird species richness. The data was processed using R software. **mydata.csv** : assessment of habitat features Site: the site where bioacoustic recordings were conducted. Kuala Selangor Nature Park (KSNP), Hutan Simpan Banjar Utara (HSBU), Hutan Simpan Telok Gong (HSTG), Hutan Simpan Kapar Tambahan (HSKT) Hour: hourly observation time in a 24-hour system. Sampling Point: points where bioacoustic recorders were placed. Total Species Detected: number of identified bird species Canopy Cover 1 (%): percentage of canopy cover at subquadrat 1 Canopy Cover 2 (%): percentage of canopy cover at subquadrat 2 Canopy Cover 3 (%): percentage of canopy cover at subquadrat 3 Canopy Cover 4 (%): percentage of canopy cover at subquadrat 4 Ground Cover 1 (%): percentage of ground cover at subquadrat 1 Ground Cover 2 (%): percentage of ground cover at subquadrat 2 Ground Cover 3 (%): percentage of ground cover at subquadrat 3 Ground Cover 4 (%): percentage of ground cover at subquadrat 4 Sapling 1 (0.5m-1m): number of saplings (0.5m–1m in height) at subquadrat 1 Sapling 2 (0.5m-1m): number of saplings (0.5m–1m in height) at subquadrat 2 Sapling 3 (0.5m-1m): number of saplings (0.5m–1m in height) at subquadrat 3 Sapling 4 (0.5m-1m): number of saplings (0.5m–1m in height) at subquadrat 4 Tree Height 1 (m): average tree height at subquadrat 1 Tree Height 2 (m): average tree height at subquadrat 2 Tree Height 3 (m): average tree height at subquadrat 3 Tree Height 4 (m): average tree height at subquadrat 4 Forest Size (ha): total size of the forest in hectares Forest Age (years): age of the forest in years