scholarly journals Community structure, regeneration potential and future dynamics of natural forest site in part of Nanda Devi Biosphere Reserve, Uttarakhand, India

2014 ◽  
Vol 8 (7) ◽  
pp. 380-391 ◽  
Author(s):  
Rawat Balwant ◽  
Gairola Sanjay ◽  
Chandra Sekar K. ◽  
S. Rawal R.
2018 ◽  
Vol 43 (4) ◽  
pp. 919-938 ◽  
Author(s):  
Itzel Rubí Rodríguez-de León ◽  
Crystian Sadiel Venegas-Barrera ◽  
Miguel Vásquez-Bolaños ◽  
Alfonso Correa-Sandoval ◽  
Jorge Víctor Horta-Vega

2021 ◽  
Vol 6 (3) ◽  
pp. 67328
Author(s):  
Nur Apriatun Nafisah ◽  
R.C.Hidayat Soesilohadi

Petungkriyono forest is a tropical rainforest with high biodiversity. The increasing tourism activities in Petungkriyono lead to land conversion. Dragonfly (order Odonata) is a good bioindicator for aquatic and terrestrial. This study aimed to compare the community structure of Odonata in natural forests and tourist sites. The method of collecting imago Odonata was done by direct searching, samples were captured using sweep netting. The results showed that the dragonflies found in all locations consisted of the same family, 2 families (Gomphidae and Libellulidae) from the suborder Anisoptera and 6 families (Calopterygidae, Chlorocyphidae, Coenagrionidae, Euphaidae Platycnemididae, and Platystictidae) from the suborder Zygoptera. The total species of dragonflies found in Sokokembang were 15 species with a total of 293 individuals, Tirta Muncar 13 species of 287 individuals, Karanggondang 17 species of 276 individuals, and Curug Lawe 14 species of 242 individuals. The highest relative abundance of individuals was in the natural forest of Sokokembang is Drepanosticta spatulifera (26.28%) and in Karanggondang Vestalis luctuosa (24.64%), while in the tourist forests of Tirta Muncar and Curug Lawe were Euphaea variegata (34.84% and 28.51 %). The structure of the Odonata community is based on the Shannon-Wiener diversity index in the natural forests of Sokokembang (2.18) and Karanggondang (2.21) at the tourist sites of Tirta Muncar (1.84) and Curug Lawe (2.11). The results showed that the structure of the Odonata community based on the level of the diversity index value, evenness index, and dominance index in natural forests and tourist sites in Petungkriyono forest was not significantly different. 


2019 ◽  
Vol 11 (12) ◽  
pp. 14562-14568
Author(s):  
Muneer Ul Islam Najar ◽  
Jean-Philippe Puyravaud ◽  
Priya Davidar

Lantana camara is a dominant invasive shrub in many protected areas of India including the Nilgiri Biosphere Reserve (NBR).  We conducted a study to assess the regeneration potential of endemic native (shola) trees under different levels of Lantana infestation in the upper plateau of NBR.  A total of 61 plots in a total area of 0.73ha were sampled, out of which 0.57ha was in Lantana dominated sites and 0.16ha in undisturbed shola forests.  The plots were classified as per the level of Lantana infestation (intensive, moderate, and low infestation). We found that regeneration of shola trees, including endemics decreased with increasing intensity of Lantana invasion.  No regeneration occurred in the intensively infested plots whereas regeneration was high in undisturbed shola forests.  


Author(s):  
Akash ◽  
Navneet

The concept of ecotourism in protected areas and their implications for the conservation of flora and fauna are of global significance. Ecotourism is not only for suitable practice of tourism in protected areas as it deals with environmental conservation, but also supports local communities. The Himalaya in present times harbors a good increase of ecotourism in protected areas like Rajaji tiger reserve, Nanda Devi Biosphere reserve, Corbett National park, Kedarnath wildlife sanctuary, etc. Efforts done by state government in building tourism state have promoted the tourism industry in general. This chapter will explore the potential of ecotourism in protected areas and the local people's perceptions towards the local tourism, conservation of wildlife and substitutes for their livelihood. Additionally, it will explore potential sites already developed or can be developed for increasing options for enhancing ecotourism, providing information about various tools, which can attract the tourists from various disciplines.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Tatenda Dalu ◽  
Rivoningo Chauke

AbstractThe Vhembe Biosphere Reserve, South Africa, contains many wetlands that serve as wildlife habitats and provide vital ecosystem services. Some of the wetlands are continuously being degraded or destroyed by anthropogenic activities causing them to disappear at an alarming rate. Benthic macroinvertebrates are known as good water quality bioindicators and are used to assess aquatic ecosystem health. The current study investigated habitat quality using macroinvertebrate community structure and other biotic variables (i.e. phytoplankton, macrophytes) in relation to environmental variables in the Sambandou wetlands using canonical correspondence analysis (CCA). A total of fifteen macroinvertebrate families were identified over two seasons. The CCA highlighted seven variables, i.e. pH, phosphate concentration, temperature, ammonium, macrophyte cover, conductivity and water depth, which were significant in structuring macroinvertebrate community. Picophytoplankton and microphytoplankton concentrations decreased from winter to summer, whereas nanophytoplankton concentration increased from winter to summer. Thus, the dominance of small-sized phytoplankton indicated nutrient limitation and decreased productivity, whereas winter sites 2 and 3 were dominated by large-celled phytoplankton, highlighting increased productivity. Winter sites were mostly negatively associated with CCA axis 1 and were characterised by high temperature, phosphate and ammonium concentrations, macrophyte cover, pH and conductivity. Summer sites were positively associated with axis 1, being characterised by high water depth and pH levels. The results obtained highlighted that agricultural activities such as cattle grazing and crop farming and sand mining/poaching had a negative effect on macroinvertebrate community structure.


1970 ◽  
Vol 19 (1) ◽  
pp. 63-72 ◽  
Author(s):  
Mohammad Zabed Hossain ◽  
Mihir Lal Saha ◽  
Chaman Binta Aziz ◽  
Sirajul Hoque

This study examined the effect of deforestation on the soil properties (physico-chemical and bacterial) of the Sal (Shorea robusta Roxb. Ex Gaertn.) forests in Bangladesh. Physico-chemical properties and the bacterial colony counts of soil were studied by comparing a natural Sal forest site with deforested and planted with Menjium site, deforested and planted with Mahogoni site, as well as deforested but not planted but covered with profuse growth of Axonopus compressus grass species site. Moisture content was significantly lower in the deforested and planted with Menjium site and deforested and planted with Mahogoni site than the natural forest site and the deforested but not planted site. Total organic carbon, total nitrogen and available nitrogen contents were significantly lower in the natural forest site. Significantly higher number of bacterial colony and higher organic carbon and moisture contents were found in the deforested but not planted site indicating that both organic carbon and moisture content were important for microbial growth. The present study clearly showed that deforestation significantly altered the soil physico-chemical and bacterial communities of the Sal forests. It was also revealed that plantation with different exotic plants were found to be different in influencing soil properties. Key words: Bacterial colony; Deforestation effects; Sal forest; Soil physico-chemical properties DOI: http://dx.doi.org/10.3329/dujbs.v19i1.8945 DUJBS 2010; 19(1): 63-72


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