Nal funding. Institutional Evaluation Board Statement: Not applicable. Data Availability Statement: Not applicable. Conflicts of Interest: The authors declare no conflict of interest.
diversityArticleEstimated Density, Population Size and Distribution from the Endangered Western Hoolock Gibbon (Hoolock hoolock) in Forest Remnants in BangladeshHabibon Naher 1 , Hassan Al-Razi 1 , Tanvir Ahmed 1 , Sabit Hasan 1 , Areej Jaradat 2 and Sabir Bin Muzaffar 2, Division of Zoology, Jagannath University, Dhaka 1100, Bangladesh; [email protected] (H.N.); [email protected] (H.A.-R.); [email protected] (T.A.); [email protected] (S.H.) Division of Biology, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; [email protected] Correspondence: [email protected]: Naher, H.; Al-Razi, H.; Ahmed, T.; Hasan, S.; Jaradat, A.; Muzaffar, S.B. Estimated Density, Population Size and Distribution of your Endangered Western Hoolock Gibbon (Hoolock hoolock) in Forest Remnants in Bangladesh. Diversity 2021, 13, 490. https://doi.org/ 10.3390/d13100490 Academic Editor: Michael Wink Received: 9 September 2021 Accepted: 4 October 2021 Published: 6 OctoberAbstract: Tropical forests are threatened worldwide as a consequence of deforestation. In South and Southeast Asia, gibbons (Hylobatidae) are critical to seed dispersal and forest regeneration. Most gibbons are threatened due to deforestation. We studied the western hoolock gibbon (Hoolock hoolock) in Bangladesh to decide population size and extent of suitable habitat. We utilized distance sampling to estimate density across 22 internet sites in northeastern and southeastern Bangladesh. We applied Maxent modeling to establish areas of highly suitable habitat throughout Bangladesh. Density was estimated to be 0.39 0.09groups/km2 , plus the total estimated population was 468.96 45.56 folks in 135.31 two.23 groups. The Maxent model accurately predicted gibbon distribution. Vegetation cover, isothermality, annual precipitation, elevation and mean temperature of your warmest quarter influenced distribution. Two places inside the northeast and two areas in the southeast have higher possible for gibbon conservation in Bangladesh. We also located substantially much more gibbons in areas that had some amount of official protection. Therefore, we suggest cautious evaluation, comprehensive surveys and restoration of habitats identified as suitable for gibbons. We recommend bringing specific web pages within the northeastern and southeastern regions under protection to safe habitat for remaining gibbon populations. Search phrases: hoolock gibbon; population estimate; Bangladesh; habitat suitability; habitat loss; distribution modeling; Maxent1. Introduction Global forest cover has declined more than the Infigratinib custom synthesis period of 1900000 at a rate of about three.1 per year, with forests at the moment occupying much less than 4 million km2 of Earth [1,2]. Dense human Isomangiferin MedChemExpress populations continue to exert immense pressures on forests in the tropics [1,three,4]. As a result, deforestation rates have remained higher in the tropics [1]. Tropical forests in South Asia happen to be classified variously into a array of tropical moist, tropical evergreen and many other forest forms determined by vegetational composition [2,5]. Forestry practices in the Indian Subcontinent along with the Southeast Asian regions initiated within the colonial era (before Planet War II) have already been responsible for alteration of tree species composition. Replacement of diverse tree species assemblages with chosen tree s.