scholarly journals Diversity, relative abundance, and habitat association of avian species in Tara Gedam Monastery forest and adjacent habitats, Northwestern Ethiopia

2020 ◽  
Vol 13 (1) ◽  
pp. 65-80
Author(s):  
Endihnew Tessfa ◽  
Dessalegn Ejigu ◽  
Gezahegn Degife ◽  
Nega Tassie
Keyword(s):  
Species Diversity ◽  
Relative Abundance ◽  
Vegetation Type ◽  
Bird Species ◽  
Similarity Index ◽  
Habitat Associations ◽  
Avian Species ◽  
Line Transect ◽  
Wet Season ◽  
Forest Patch

  Birds are important bio-indicators and provide various ecosystem services including pollination, dispersal, and pest control. However, they are threatened by habitat loss, fragmentation, and degradation. Study on species diversity, relative abundance, and habitat associations of avifauna were conducted in Tara Gedam Monastery forest patch and associated habitats from July 2016 to April 2017. Stratified random sampling approach was used to classify habitats and select sampling plots based on vegetation type. Consequently, forest, bushland, farmland, and plantation habitats were used for data collection. Point count and line transect methods were used to collect data, and Shannon-Weiner and Simpson’s diversity indices were used to estimate the avian species diversity. One-way ANOVA was conducted to compare avian relative abundance and richness among the different habitat types. A total of 98 species of birds belonging to 14 orders and 41 families were recorded in Tara Gedam Monastery forest and associated habitats. Eighty-seven resident bird species and eleven Palearctic migrants were identified of which seven species are endemic to Ethiopia and Eritrea. The highest avian diversity (H’=4.23) was recorded in the study area during the wet season.The highest species similarity index (SI=0.47) was recorded between forest and bushland habitats during the wet season, while the lowest similarity index (SI=0.07) was found between bush-land and farmland habitats during the dry season. Species richness and relative abundance of bird species varied between the wet and dry seasons. Besides birds, Tara Gedam Monastery forest supports a large number of other wild fauna species, which indicates the area’s potential to support biodiversity. Therefore, there must be a collaborative work between the monastery and different governmental and non-governmental organizations to protect the entire ecosystem in order to conserve the whole biodiversity of the area in general and the avifauna in particular.

Diversity, distribution and relative abundance of avifauna at Ansas Dam and surrounding farmland site Debre Berhan Town, Ethiopia

2020 ◽  
pp. 175815592096320
Author(s):  
Alemayehu Shiferaw ◽  
Dereje Yazezew
Keyword(s):  
Relative Abundance ◽  
Bird Species ◽  
Dry Season ◽  
Avian Species ◽  
Ordinal Scale ◽  
Line Transect ◽  
Wet Season ◽  
Debre Berhan ◽  
Dry Seasons ◽  
Wet And Dry Seasons

The diversity, distribution, and relative abundance of avifauna were studied at and Around Ansas Dam, Debre Berhan Town, Ethiopia, from early September 2018 to early February 2019, covering both wet and dry seasons. Line transect technique was employed to study the diversity, abundance and distribution of birds species in the farmland site while total count employed on the dam. Data were collected in both wet and dry seasons from 6:30 to10:00 early morning and 15:30 to 18.00 late afternoon, when birds are more active. The data were analyzed with Shannon-Weiner Index, Simpson Index, Evenness Index, and relative abundance. A total of 45 bird species (35 in the dam and 22 in the farmland) belonging to nine orders and 21 families were recorded during the study period. Order Passeriformes (37.8%) followed by order Charadriformes (24.4%) were represented highest number. From all identified species at Ansas Dam and surrounding farmland, Abyssinian longclaw, Black-headed siskins, White-tailed swallow, Blue-winged goose, and Spot-breasted lapwing were endemic birds to Ethiopia. The highest Shannon diversity (H′ = 2.1) was recorded in dam during the dry season while the lowest (H′ = 1.78) was recorded during wet season in farmland. However, the Simpson diversity Index of avian species indicated relatively higher avian species diversity during the dry season in dam (D = 0.80) than farmland (D = 0.71) habitat. Evenness was highest in the dam (E = 0.65) and lowest in the farmland (E = 0.58) habitat. More avian species similarity (SI = 0.42) at farmland and dam habitat during the wet season but least similarity (SI = 0.2) was observed during the dry season. Most birds had scored rare in the ordinal scale while few species with abundant and uncommon ranks in both habitats and seasons. Conservation of the different charismatic bird species should be taken as an important component of wildlife management plan in the area.

scholarly journals Species Diversity and Abundance of Birds along Boat Touring Routes for Ecotourism in Tha-kha Sub-District, Amphawa District, Samut Songkram Province, Thailand

Proceedings ◽  
2018 ◽  
Vol 2 (22) ◽  
pp. 1389
Author(s):  
Nitinarth Charoenpokaraj ◽  
Petchpanom Chitman
Keyword(s):  
Species Diversity ◽  
Feeding Behavior ◽  
Migratory Birds ◽  
Bird Species ◽  
Similarity Index ◽  
Research Area ◽  
Line Transect ◽  
Bird Abundance ◽  
Migratory Season ◽  
Local Ecosystem

Tha-kha Floating Market is a famous tourist attraction in Tha Kha sub-district, Amphawa district, Samut Songkram Province, Thailand. There are Thai paddle-boats for tourists to get close to nature and local people lifestyle along the canals. The objectives of this research were (1) to study species diversity, feeding behavior and status of birds in the research area. (2) to analyze abundance and similarity of birds in the research area. The data was carried out by field survey of species of birds and their behaviors sighted directly and from their calls by using line transect method then classify species, feeding behavior and status of birds, analyze their abundance and similarity in three routes. Three boat touring routes were surveyed; route 1 (Tha Kha floating market—homestay), route 2 (Tha Kha floating market—Thai traditional sugar making kiln), and route 3 (Thai traditional sugar making kiln—resort). The survey was conducted in the morning from 7 a.m. to 10 a.m. and in the afternoon from 3 p.m. to 6 p.m. One survey was made each month from April 2017–March 2018. The result of this research found that there were 15 orders, 37 families and 74 species of birds. The highest number of bird species in 3 routes was 49 species in December and 47 species in November accordingly because it was migratory season of migratory birds in the research area. According to bird feeding behavior, the maximum insectivorous bird species of 35 were found in 3 routes. According to status of birds, 52 resident birds, 9 migratory birds, 13 resident and migratory birds were found in 3 routes. According to bird abundance, 21 bird species were in level 5, 7 bird species in level 4, 20 bird species in level 3, 9 bird species in level 2 and 17 bird species in level 1. According to bird similarity index, the similarity index between route 1 and route 3 was 0.814. The community also organized eco-touring activities by using Thai paddle-boats. So the birds are as indicators of natural balance of local ecosystem.

scholarly journals Species Diversity, Distribution and Relative Abundance of Avifuana in the Mangrove of Karamjal Forest Station, Sundarbans

2020 ◽  
Vol 48 (1) ◽  
pp. 67-79
Author(s):  
Humayra Mahmud ◽  
Animesh Goshe Ayon ◽  
Md Anwarul Islam
Keyword(s):  
Species Diversity ◽  
Relative Abundance ◽  
Habitat Type ◽  
Bird Species ◽  
Avian Species ◽  
Bird Diversity ◽  
National Scale ◽  
Gyps Bengalensis ◽  
Bird Species Diversity ◽  
Near Threatened

Study on bird species diversity, distribution and relative abundance is important for conservation efforts in local and national scale. However, bird diversity, distribution and relative abundance are little known in Karamjal Forest Station, Sundarbans. Ecological appraisal of bird species diversity, distribution and relative abundance of the avifauna of the Karamjal Forest Station were conducted from June 2015 to April 2016. A total of 156 bird species was recorded during the study period. Of which, one was globally Critically Endangered, Gyps bengalensis and two were Near Threatened i.e., Gyps himalayensis and Lusciniapectardens. The distribution of bird among habitat type was significantly different (f =22.069, p<0.05, df = 2). Walking trail was inhabited the highest species diversity (H’= 3.77) with the highest evenness (J=0.823) while water body was recorded the lowest species diversity (H’= 2.93) with the lowest evenness (J=0.804), it could have a relation to the availability of food items in the habitat. This study showed that despite huge tourist pressures this forest station harbour diverse avian species and thus this area should be managed in order to enhance the population of avian species. Bangladesh J. Zool. 48(1): 67-79, 2020

scholarly journals Birds species composition and abundance of a relativelly undisturbed vegetation at Mount Pati, Lokoja, Kogi State

2019 ◽  
Vol 6 (12) ◽  
pp. 271-282
Author(s):  
Dauda Tanko ◽  
Rita Chinweuba
Keyword(s):  
State Government ◽  
Diversity Index ◽  
Anthropogenic Activities ◽  
Bird Species ◽  
Activity Level ◽  
Line Transect ◽  
Biological Factors ◽  
Wet Season ◽  
Fuel Wood ◽  
Wiener Diversity Index

Avifauna of a relatively undisturbed vegetation at Mount Patti of Lokoja was surveyed from January to June, 2018. Line transect and point count techniques were used for data collection. This was done by weekly visits to the site between 6:00 h and 10:00 h of the day. Bird identification was done with the aid of a pair of binoculars, Field Guide of birds of western Africa and recorded bird calls. Monthly variation and season variation in bird composition and abundance were compared using Shannon-Wiener diversity index and equitability index. There were 39 species in 21 families encountered during the survey. The Family Nectarinidae had the highest number of 5 species, followed by Columbidae and Estrildidae with 4 species each. A total of 1,148 individuals were encountered during the six months survey with village weaver having the highest encountered rate of 107 while yellow-throated Long-claw had the least encountered rate of 4 individuals. Fluctuation was observed in the monthly encountered rate of the birds. Diversity and equitability indices had their highest values of 5.24 and 1.51 in January. More birds (696) were encountered in the wet season than the dry season (452). Four species were seen only in the wet season. Species effort curve showed that there are more species to be discover. The number of species encountered in this study revealed that the mountain is rich composition of bird species, even though the site seems to favour species that show preference to disturbed areas. The on-going anthropogenic activities probably paved way to these species to move in. Monthly and seasonal fluctuation of bird species diversity and abundance may be due to a combination of physical and biological factors. The physical and biological factors observed at the site which we speculate could be reasons for the observed fluctuations include slash and burnt system of farming, fuel-wood harvesting, intensive sporting activities creation of foot paths etc. High encountered rate indicate abundance and high activity level of the species. The village weaver was the most encountered species probably because they are known to be lousy, move in flocks and breed in colonies. In view of the rich composition and abundance of bird species on Mount Patti and the site being a suitable breeding site for the weavers. We recommend further study of the place as there are yet more species to be discovered as indicated by the species effort curve. There is need for conservation procedures to be initiated at the place and this study should serve as a baseline to initiate such programme by the state government.

scholarly journals Spatial Distribution of Insect Diversity in Selected Locations within Forestry Research Institute of Nigeria, Ibadan, Nigeria

2021 ◽  
Vol 25 (7) ◽  
pp. 1249-1255
Author(s):  
O.A. Aina-Oduntan ◽  
Q.A. Onilude ◽  
J.A. George-Onaho ◽  
A.I. Woghiren ◽  
O.R. Jeminiwa
Keyword(s):  
Species Diversity ◽  
Relative Abundance ◽  
Habitat Modification ◽  
Insect Species ◽  
Line Transect ◽  
Microsoft Excel ◽  
Forestry Research ◽  
Significant Difference ◽  
Ibadan Nigeria ◽  
Research Institute

With the increase in the rate of tree removal and construction of buildings within the Forestry Research Institute of Nigeria premises, there has been concomitant rise in habitat modification. These changes in habitat composition affect the insect population. This study therefore investigated the insect species diversity and abundance within some selected locations within FRIN with the view to determining different insect species available in FRIN premises. Sweep nets were used to trap the insects along a predetermined line transect. Data were analyzed using Microsoft Excel 2007 and Paleontological Statistics were used for the data analysis. Descriptive statistics, one-way analysis of variance (ANOVA) and species diversity and composition were all assessed. A total number of 1073 individual insects belonging to 6 orders, 27 families and 34 species were recorded across the three locations. Out of this, Order Lepidoptera had the highest relative abundance (53%), followed by Coleoptera (22%), then by Hymenoptera, Hemiptera, Heteroptera and Diptera with 10%, 9%, 4% and 2% relative abundance respectively. The result of ANOVA showed that there was no significant difference in species composition/richness across the locations at probability level of 5%. The insect species diversity, evenness and richness also varied across the locations. This study therefore, brings to the fore the diversity and abundance of insects within FRIN premises and highlighted the need for a more intensive study by the entomology section and for sustainable actions to be taken in conserving beneficial rare species while, managing the abundant pestiferous ones.

scholarly journals Effect of Farming and Rainfall on the Species Diversity, Population Density and Community Structure of Birds Breeding in the Kalahari Woodland, NE Namibia

Zoodiversity ◽  
2021 ◽  
Vol 55 (6) ◽  
pp. 451-458
Author(s):  
G. Kopij
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Bird Species ◽  
Diversity Indices ◽  
Annual Rainfall ◽  
Feeding Guilds ◽  
Line Transect ◽  
Population Densities ◽  
Feeding Guild ◽  
Turtle Dove

The line transect method has been employed to assess species diversity, population densities and community structure of birds breeding in a mosaic of Kalahari Woodland and farmland, NE Namibia. The transect, 4.5 km long, was surveyed in 2014 and 2015. The total annual rainfall in 2014 was much higher than in 2015 (427 mm vs. 262 mm). In total, 40 breeding species in 2014, and 46 in 2015 were recorded. Six species were dominant in 2014 (Cape Turtle Dove, Laughing Dove, Emerald-spotted Dove, Blue Waxbill, and White-browed Scrub Robin) and only three species in 2015 (Cape Turtle Dove and Blue Waxbill and Yellow-fronted Canary). Although the cumulative dominance in 2014 almost doubled that in 2015, the Community Index in both years was almost identical. Also diversity indices and evenness index were very similar in both years compared. Granivorous birds were the most numerous feeding guild. Their contribution was similar in 2014 and 2015 (46.7 % vs. 43.4 %). Two other feeding guilds, insectivores and frugivores, comprised together more than 50 % in both years. The number of bird species and species diversity were not influenced by the differential rainfall. However, contrary to expectations, population densities of most bird species (at least the more numerous ones) were higher in the year with lower than in the year with higher rainfall. The number of species and species diversity was similar in the farmland and in neighbouring Kalahari Woodland in a pristine stage. However, population densities of most species were lower in the farmland than in the pristine woodland.

Avifauna in three vegetation types on Mundanthurai Plateau, South India

1994 ◽  
Vol 10 (3) ◽  
pp. 323-335 ◽  
Author(s):  
A. J. T. Johnsingh ◽  
Justus Joshua
Keyword(s):  
Species Diversity ◽  
South India ◽  
Deciduous Forest ◽  
Conservation Status ◽  
Bird Species ◽  
Line Transect ◽  
Vegetation Types ◽  
Secondary Vegetation ◽  
Dry Deciduous Forest ◽  
Bird Species Diversity

ABSTRACTPatterns of bird species diversity within three vegetation types were investigated by the line transect method on Mundanthurai Plateau, South India. Minimum numbers of species and individuals were seen in the study area during July and August. Such seasonal variation was more pronounced in riverine and dry deciduous forest than in the secondary vegetation which was avoided by most of the winter migrants. There was a greater species overlap between riverine and dry deciduous forest than between riverine and secondary vegetation.No relationship could be established between bird species diversity and tree species/foliage height diversity. The secondary vegetation had fewer specialized forest species and more generalists. Larger birds (>200 g) were rare but smaller ones (<50 g) were more common. The paper emphasizes that the conservation status of avifauna in managed forests in India needs to be assessed and monitored.

scholarly journals Riparian tree and bird diversity in Cisadane River, South Tangerang City, Indonesia

2019 ◽  
Vol 20 (2) ◽  
pp. 595-603
Author(s):  
URFI IZZATI ◽  
HAYATI SARI HASIBUAN
Keyword(s):  
Species Diversity ◽  
Urban Areas ◽  
Diversity Index ◽  
Pearson Correlation ◽  
Bird Species ◽  
Bird Diversity ◽  
Systematic Sampling ◽  
Line Transect ◽  
Species Diversity Index ◽  
Riparian Tree

Abstract. Izzati U, Hasibuan HS. 2019. Riparian tree and bird diversity in Cisadane River, South Tangerang City, Indonesia. Biodiversitas 20: 595-603. Riparian is a riverbank area that has unique characteristics. It is a combination of terrestrial with aquatic habitats so that riparian ecosystems have high biodiversity values. Riparian is included in a protected area that is naturally designated for vegetation, but in reality, riparian areas, especially in urban areas, have a lot of conversion of land functions by humans so that it can disrupt diversity of tree and bird species. This study aims to identify the diversity of tree and bird species and the correlation between the two. Riparian length of Cisadane River, South Tangerang City is 20.15 km. The method used was plot line with size of 20 m x 20 m for tree data and line transect for bird data by systematic sampling with a random start then analyzed using Shannon Wiener index. The results obtained were found 22 tree species included in 11 families with species diversity index (H') of 2.707 and 40 bird species belonging to 25 families with species diversity index (H') of 2.794. The diversity of tree and bird species is classified as medium. The results of the analysis using the Pearson correlation between the diversity of tree with bird species obtained that there was no relationship between the two. Based on these results, riparian zones in urban areas need to be maintained and improved in quality so that the diversity of tree and bird species increases so as to create a stable ecosystem.

scholarly journals KEANEKARAGAMAN JENIS BURUNG PADA HUTAN DATARAN RENDAH DI KOMPLEKS GUNUNG BULUSARAUNG TAMAN NASIONAL BANTIMURUNG BULUSARAUNG

PERENNIAL ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 16
Author(s):  
Risma Illa Maulany ◽  
Jumriah Lira ◽  
Amran Achmad ◽  
Nida' Sari Achmad
Keyword(s):  
National Park ◽  
Wildlife Conservation ◽  
Diversity Index ◽  
Bird Species ◽  
Similarity Index ◽  
Bird Diversity ◽  
Line Transect ◽  
Lowland Forest ◽  
South Sulawesi ◽  
Bird Watching

Lowland Forest at the complex of Bulusaraung mountain  in the Bantimurung Bulusaraung National Park is one of important habitat of birds in South Sulawesi. This study aimed to identify bird’s diversity in the Lowland Forest of Bantimurung Bulusaraung National Park for ecotourism purposes. This research was carried out for 2 months between April and May 2018. The data were gathered by using line transect method. The data were analyzed by using Shannon-Weiner diversity index, Evenness index, Margalef species richness index, and Sorensen Similarity index. The result of the study showed that, there were 23 species of birds found in the three lines of observation tracks. There were 19 species  found in Balleanging, 12 species  in Kattokaddaro and 15 species  found in Tompobulu.The highest value of bird diversity index was found in Tompobulu (H '= 1,73) followed by Balleanging (H' = 1,54) and Kattokaddaro routes (H '= 1,43). Therefore, the diversity of bird species in the three observation pathways can be used as objects and attractions in the development of ecotourism based on bird watching in wildlife conservation efforts.

scholarly journals Keanekaragaman dan Kelimpahan Belalang dan Kerabatnya (Orthoptera) pada Dua Ekosistem Pegunungan di Taman Nasional Gunung Halimun-Salak

2015 ◽  
Vol 7 (2) ◽  
pp. 100
Author(s):  
NETY VIRGO ERAWATI ◽  
SIH KAHONO
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
National Park ◽  
Diversity Index ◽  
Sampling Site ◽  
Similarity Index ◽  
Line Transect ◽  
Light Traps ◽  
Set Up ◽  
Sweep Net

A study on diversity and abundance of grasshopper and its relatives (Orthoptera) was conducted at two mountainous rainforest ecosystems (Mounts Kendeng and Botol) of Gunung Halimun-Salak National Park. A hundred meters of a line transect was used to sample and set up several insect traps (yellow pan, malaise, pit fall, bait pit fall, sweep net, and light traps), and insect sweepings as well. The light traps were set up at about fifty meters distance from the end of the sampling sites. A total individual collected by traps was combined on every comparable sampling site. Total individuals of the Orthoptera captured were 414; consisted of 25 species of 9 families. Both species diversity and number of families were higher at Mount Kendeng rather than Mount Botol. Number of species of each family usually similar except on family of Grillidae was much higher at Mount Kendeng. Species belong to Phasmidae was not recorded at Mount Kendeng, while species belong to both families of Gryllotalpidae and Tettigonidae were not captured at Mount Botol as well. Overal there was a difference in the species richness at each between. Shannon Diversity Index (H’) and evenness (E) were higher at Mount Kendeng (2.44 and 0.81) rather than Mount Botol (1.80 and 0.66). Similarity Index of Jaccard (Cj) and Sorenson (Cn) of both localities were similar (0.40 and 0.32). Herbivores were most dominant at both localities (Phasmidae, Tetrigidae, Acrididae, Gryllidae, dan Gryllotalpidae), followed by omnivores (Blattidae), scavenger (Gryllacrididae), and predator (Mantidae).

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