Species diversity and feeding guilds of birds in Malaysian agarwood plantations

In Malaysia, the current status of birds inhabiting agarwood Aquilaria malaccensis plantations has not been specifically studied, and little research has been conducted to investigate birds in other agricultural areas (e.g., rubber, acacia, and oil palm plantations) and disturbed areas. This study was conducted to assess bird species richness and relative abundance, as well as feeding guilds, in two agarwood plantation sites: Universiti Pendidikan Sultan Idris in Tanjong Malim (UPSI), and Slim River (SR). The presence of birds was recorded using a combination of techniques (mist-nets and point count), while various sources were used to compile feeding information. This study recorded 364 birds from 36 species in 24 families. Shannon diversity index (H’) values for the UPSI and SR sites were 2.896 and 2.492 respectively, indicating high bird diversity. The Bray-Curtis index was 0.29, indicating these sites share few species. Insectivorous and omnivorous birds were dominant in UPSI (31%), and omnivores at SR (32%). The commonest insect order at both sites was Orthoptera (UPSI 48%, SR 25%). While agarwood plantations are relatively homogeneous, they provide a variety of food sources and shelter for a wide range of birds.

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Bird composition, diversity and foraging guilds in agricultural landscapes: a case study from eastern Uttar Pradesh, India

Journal of Threatened Taxa ◽

10.11609/jott.7089.13.8.19011-19028 ◽

2021 ◽

Vol 13 (8) ◽

pp. 19011-19028

Author(s):

Yashmita-Ulman ◽

Manoj Singh

Keyword(s):

Diversity Index ◽

Bird Species ◽

Uttar Pradesh ◽

Agricultural Landscapes ◽

Bird Diversity ◽

Feeding Guilds ◽

Anthropogenic Pressures ◽

Point Count ◽

Point Count Method ◽

Eastern Uttar Pradesh

Birds have a significant role in maintaining the ecological balance of agro-ecosystems. But yet there is no documentation related to bird diversity in the agricultural landscapes of eastern Uttar Pradesh. This study was conducted from March 2019 to February 2020 using fixed radius point count method in Ayodhya district of eastern Uttar Pradesh. A total of 139 bird species belonging to 107 genera, 49 families and 15 orders were recorded from the study area. Passeriformes was the most dominant order with 28 families and 76 species. Accipitridae and Muscicapidae were the most diverse families with 11 species each and RDi value of 7.91. Among the recorded bird species, 105 species (76%) were resident, 29 species (21%) were winter visitors and only 5 species (4%) were summer visitors. According to the feeding guilds, omnivores (46 species, 33%) were highly represented, followed by insectivores (31%), carnivores (25%), granivores (6%), frugivores (4%) and nectarivores (1%). The Sohawal tehsil was found to have the highest species richness and a Shannon-Weiner diversity index (133, 4.30). Aquila nipalensis and Neophron percnopterus were the two ‘Endangered’ species, Antigone antigone and Clanga hastata were the two ‘Vulnerable’ species and Ciconia episcopus, Gyps himalayensis, Mycteria leucocephala and Psittacula eupatria were the four ‘Near Threatened’ species found in this region. In addition to this, the region also supported 31 species (22%) whose global population trend is decreasing. This study provides a baseline data on the bird diversity present in agricultural landscapes of this region. Based on which further studies should be designed to understand the factors influencing the diversity of birds in these agricultural landscapes which are continuously subjected to anthropogenic pressures.

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Factors affecting the species richness and composition of bird species in a community managed forest of Nepal

Journal of Threatened Taxa ◽

10.11609/jott.6945.13.9.19212-19222 ◽

2021 ◽

Vol 13 (9) ◽

pp. 19212-19222

Author(s):

Bishow Poudel ◽

Bijaya Neupane ◽

Rajeev Joshi ◽

Thakur Silwal ◽

Nirjala Raut ◽

...

Keyword(s):

Diversity Index ◽

Bird Species ◽

Habitat Characteristics ◽

Lower Percentage ◽

Bird Diversity ◽

Limited Information ◽

Managed Forest ◽

Point Count ◽

Community Forests ◽

Wiener Diversity Index

There exists limited information on biodiversity including avifaunal diversity and habitat condition in community forests (CF) of Nepal; thus we aimed to fulfill such gaps in Tibrekot CF of Kaski district. We used the point count method for assessing bird diversity and laid out a circular plot size of radius 5-m within 15-m distance from each point count station for recording the biophysical habitat characteristics. Bird species’ diversity, richness and evenness were calculated using popular indexes and General Linear Model (GLM) was used to test the respective effect of various biophysical factors associated with the richness of bird species. In total, 166 (summer 122, winter 125) bird species were recorded in 46 sample plots. The Shannon-Wiener diversity index was calculated as 3.99 and 4.09, Margalef’s richness index as 16.84 and 17.53 and Pielou’s evenness index as 0.83 and 0.84 for summer and winter, respectively. The influencing factors for richness of bird species were season (χ21, 90= 112.21; P= 0.016) with higher richness in the summer season and low vegetation cover (χ21, 89= 113.88; P= 0.0064) with higher richness in lower percentage cover. Thus, community managed forest should be protected as it has a significant role in increasing bird diversity, which has potential for attracting avifaunal tourism for the benefit of the local communities.

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Assessment of Bird Diversity as Bioindicators in Two Parks, Kolkata, India

International Letters of Natural Sciences ◽

10.18052/www.scipress.com/ilns.16.131 ◽

2014 ◽

Vol 16 ◽

pp. 131-139

Author(s):

Ranjini Chowdhury ◽

Subhodeep Sarkar ◽

Abantika Nandy ◽

Soumendra Nath Talapatra

Keyword(s):

Air Pollution ◽

Diversity Index ◽

Residential Buildings ◽

Bird Species ◽

Bird Diversity ◽

Landscape Changes ◽

Vehicular Pollution ◽

Human Interactions ◽

Wiener Diversity Index ◽

Wide Range

The trees of parks and gardens support many species, the survival of urban-dwelling species mainly bird species. Birds amongst other species provide a wide range of environmental and social functions to cities and urban dwellers. The present study aims to know bird diversity in two parks as bioindicator of automobile air pollution exposure, landscape changes and/or human interactions. The study areas were selected as per heavily-populated neighborhoods, nearby office buildings, nearby roads and continuous vehicular movements, human interactions as visitors, where high levels of human disturbance are common. The study was carried out at 2 sampling stations viz (i) Elliot park and (ii) Agri-horticulture Society. The bird species diversity was studied by qualitative and quantitative assessment. Indices were Species richness, Index of Dominance, Relative abundance, Shannon-Wiener Diversity Index and Evenness Index for birds for all selected sites were calculated using the statistical formulae. The present results as bioindicators bird species clearly indicate that the bird species are very few in numbers in both the parks. When comparison made between both the parks, it was observed less number of bird varieties (16 types) in Elliot park than varieties (9 types) more less in number in Agri-horticulture society. This study is a preliminary assessment of bird diversity but further researches are needed in relation to biochemical and genetic damage study as well as air pollution load by using instruments. In the present study it was concluded that the less numbers of birds and their different diversity indices were found a decreasing trends, though there no attempt has been made on physico-chemical properties of present air pollutants. The less number of varieties of bird species are as tolerant bioindicators, which may be due to the vehicular pollution and/or human interference and/or landscape changes due to nearby neighborhood blocks, office and residential buildings, continuous movement of vehicles etc

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Keanekaragaman Jenis Burung di Kawasan Pengembangan Institut Teknologi Sumatera (ITERA)

AL-Kauniyah Jurnal Biologi ◽

10.15408/kauniyah.v14i1.12323 ◽

2021 ◽

Vol 14 (1) ◽

pp. 1-9

Author(s):

Indah Oktaviani ◽

Yanti Ariyanti ◽

Sovia Santi Leksikowati ◽

Muhammad Asril

Keyword(s):

Environmental Changes ◽

Diversity Index ◽

Conservation Status ◽

Bird Species ◽

Secondary Data ◽

Bird Community ◽

Bird Diversity ◽

Feeding Guild ◽

Point Count ◽

Wiener Diversity Index

AbstrakKawasan kampus Institut Teknologi Sumatera (ITERA) sedang mengalami perkembangan fisik yang pesat, seperti pembangunan gedung perkuliahan, laboratorium, asrama, juga embung untuk sumber air. Informasi mengenai keanekaragaman hayati di ITERA sendiri belum banyak diteliti, salah satunya adalah keanekaragaman burung. Burung merupakan hewan besar yang cukup sensitif dengan perubahan lingkungan. Penelitian ini dilakukan untuk mendapatkan data mengenai keanekaragaman burung di ITERA untuk memberikan informasi dasar. Metode yang digunakan adalah teknik point count, diterapkan pada lima stasiun utama yang dipilih berdasarkan pusat aktivitas pembangunan. Analisis yang digunakan adalah indeks keanekaragaman, kemerataan, juga kelimpahan. Selain itu, status konservasi dan tipe pakan jenis burung dianalisis menggunakan data sekunder. Hasil penelitian menunjukkan terdapat 19 jenis burung dari 16 famili. Keanekaragaman jenis burung berdasarkan indeks Shannon-Wiener tergolong sedang dan kemerataan jenis merata. Dari kategori kelimpahan yang digunakan terdapat dua jenis burung yang umum ditemukan. Bersumber pada PP No. 7 tahun 1999, terdapat empat jenis burung di ITERA yang termasuk ke dalam kategori dilindungi dan satu jenis termasuk kategori Appendix II di CITES. Feeding guild burung di ITERA didominasi tipe omnivora dan insektivora. AbstractInstitut Teknologi Sumatera (ITERA) campus area is undergoing rapid physical development, such as the construction of lecture buildings, laboratories, dormitories, as well as reservoirs for water sources. Information on biodiversity in ITERA has not much studied, one of which is bird diversity. Birds are large animals that are quite sensitive to environmental changes. This study aims to obtain data on bird diversity at ITERA to provide the baseline information. The method used is a point count technique, applied to five main stations selected based on the center of development activities. The analysis used is an index of diversity, evenness, and abundance. Besides, the conservation status and feed type of bird species were analyzed using secondary data. The results showed that there were 19 species of birds from 16 families. The Shannon-Wiener diversity index classified the bird community as a moderate, and the community evenness index was stable. From the abundance category, two types of birds commonly found. Based on PP No. 7 of 1999, there are four species of birds in ITERA, which included in the protected category and one species, including the Appendix II category in CITES. Omnivorous and insectivorous types dominate bird guild feeding in ITERA.

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Bird Diversity and Distribution in relation to Urban Landscape Types in Northern Rwanda

The Scientific World JOURNAL ◽

10.1155/2014/157824 ◽

2014 ◽

Vol 2014 ◽

pp. 1-12 ◽

Cited By ~ 14

Author(s):

T. Gatesire ◽

D. Nsabimana ◽

A. Nyiramana ◽

J. L. Seburanga ◽

M. O. Mirville

Keyword(s):

Urban Landscape ◽

Migratory Birds ◽

Diversity Index ◽

Bird Species ◽

Bird Diversity ◽

Garden Warbler ◽

Point Count ◽

Master Plans ◽

Bird Richness ◽

Point Count Method

Using the point count method, linear mixed models, Shannon’s diversity index, and Bray-Curtis cluster analysis, we conducted a study of the effect of urban fabric layout on bird diversity and distribution in northern Rwanda. The results showed a significant effect of city landscapes on bird richness and relative abundance; residential neighborhoods, institutional grounds, and informal settlements had the highest species diversity in comparison to other microlandscape types. Riversides were characterized by specialized bird species, commonly known to be restricted to wetland environments. Built-up areas and open field landscapes had comparable results. One Albertine Rift endemic bird species, the Ruwenzori Double-collared Sunbird (Cinnyris stuhlmanni), was recorded. Three migratory birds were found in Musanze city for the first time: the Common Sandpiper (Actitis hypoleucos), the Spotted Flycatcher (Muscicapa striata), and the Willow Warbler (Phylloscopus trochilus). Two bird species have not been previously reported in Rwanda: the Garden Warbler (Sylvia borin) and the Lesser Spotted Eagle (Aquila pomarina). The implications of this study are particularly relevant to urban decision makers who should consider the existence of a great diversity of avian fauna when developing and implementing master plans, especially when villages and cities are in proximity of protected areas or natural reserves.

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Bird Diversity and Community Composition in Kafta Sheraro National Park, Tigray, Northern Ethiopia

International Journal of Zoology ◽

10.1155/2020/5016804 ◽

2020 ◽

Vol 2020 ◽

pp. 1-10

Author(s):

Teklay Girmay ◽

Zeyede Teshome ◽

Tesfay Tesfamichael

Keyword(s):

Species Diversity ◽

Species Composition ◽

National Park ◽

Diversity Index ◽

Bird Species ◽

Bird Community ◽

Livestock Grazing ◽

Bird Diversity ◽

Northern Ethiopia ◽

Point Count

Birds are one of the most important components of biodiversity that has huge ecological, economical, and esthetic values. The main objective of this study was to assess diversity and species composition of bird community in Kafta Sheraro National Park, Northern Ethiopia. Data were collected from August 2017 to March 2018 in the national park. Point count method was employed to collect data on bird species diversity and species composition. Direct observations of birds and discussion with local people and scouts to assess potential threats of avifauna in the park were made. Shannon diversity index was used to calculate the species diversity. A total of 158 bird species belonging to 52 different families and 20 orders were identified. Of the recorded species, there were 76.6% residents, 15.8% Palaearctic migrants (PM), 5.7% Intra-African migrants (IM), and 1.9% partial migrants. Accipitiridae (11.4%) had the highest species followed by Columbidae, Estrilidae, and Ploceidae with 7%, 5.7%, and 4.4% species, respectively. The highest Shannon–Weiner diversity index (H′ = 4.50) was recorded during February while the lowest (H′ = 2.18) was recorded during March. Species richness of the park showed no significance difference among the study months (χ2 = 10.046, df = 5, P>0.05). Agricultural expansions, fire, livestock grazing, mining, and poaching were the major threats of the park bird species. Kafta Sheraro National Park is one of the areas with high avian composition in Ethiopia. In the park, wildlife watching in general and ornithological tourism in particular should be developed. Anthropogenic disturbances should also be minimized to conserve avian diversity of the park.

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First assessment of bird diversity in the UNESCO Sheka Forest Biosphere Reserve, southwestern Ethiopia: species richness, distribution and potential for avian conservation

Journal of Threatened Taxa ◽

10.11609/jott.4726.11.7.13850-13867 ◽

2019 ◽

Vol 11 (7) ◽

pp. 13850-13867 ◽

Cited By ~ 1

Author(s):

Mattias Van Opstal ◽

Bernard Oosterlynck ◽

Million Belay ◽

Jesse Erens ◽

Matthias De Beenhouwer

Keyword(s):

Species Richness ◽

Bird Species ◽

Biosphere Reserve ◽

Bird Diversity ◽

Detailed Knowledge ◽

Bird Species Richness ◽

Point Count ◽

Southwestern Ethiopia ◽

The Rich ◽

High Degree

The Sheka Zone in southwestern Ethiopia is covered by some of the largest remaining forests in the Eastern Afromontane biodiversity hotspot. Owing to the rich biodiversity and a high degree of endemism, it was declared as a biosphere reserve by UNESCO in 2012 and is considered a Key Biodiversity Area. Detailed knowledge on species diversity and distribution in the reserve is, however, severely limited. From February to April 2016, an assessment of the bird diversity and distribution in the reserve was made for the first time through point count transects, camera-trap recordings and opportunistic observations. In total, 244 bird species were identified, of which 19% was only found within the reserve’s designated protected zones. Our study indicates a remarkable bird species richness across the different habitats in Sheka Forest Biosphere Reserve and can be used as a baseline for future monitoring studies and conservation planning.

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KEANEKARAGAMAN JENIS BURUNG DI KAWASAN HUTAN LINDUNG GUNUNG SIRIMAU

JURNAL HUTAN PULAU-PULAU KECIL ◽

10.30598/jhppk.2017.1.3.247 ◽

2017 ◽

Vol 1 (3) ◽

pp. 247

Author(s):

John F. Sahusilawane

Keyword(s):

Bird Species ◽

Bird Diversity ◽

Mountain Forests ◽

Point Count ◽

Red Eye ◽

Count Method ◽

Protected Forests ◽

Point Count Method ◽

Habitat Variables

This study was conducted to determine the composition of bird diversity and vegetation stages and composition, to determine the variables that most influence the diversity of birds in protected forests Sirimau, This study was conducted for three months from September 2015 to November 2015. Bird observations and habitat variables performed using the Point Count method, and found thirty observation points at each location, with 30 cm trellis and 200 m plot distance. The analysis of birds and vegetation in Sirimau mountain forests shows that, bird species are dominated by Red Eye (Aplonis Motalica), and more than 50 species of vegetation exist in the research location, dominated by fruits.

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

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d200241 ◽

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.

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Effectiveness of protected areas in conserving tropical forest birds

10.1101/2020.01.21.912345 ◽

2020 ◽

Author(s):

Victor Cazalis ◽

Karine Princé ◽

Jean-Baptiste Mihoub ◽

Joseph Kelly ◽

Stuart H.M. Butchart ◽

...

Keyword(s):

Tropical Forest ◽

Protected Areas ◽

Bird Species ◽

Biodiversity Loss ◽

Forest Birds ◽

Bird Diversity ◽

Bird Species Richness ◽

Positive Effects ◽

Global Biodiversity ◽

Underlying Mechanisms

AbstractProtected areas are the cornerstones of global biodiversity conservation efforts1,2, but to fulfil this role they must be effective at conserving the ecosystems and species that occur within their boundaries. This is particularly imperative in tropical forest hotspots, regions that concentrate a major fraction of the world’s biodiversity while also being under intense human pressure3–5. But these areas strongly lack adequate monitoring datasets enabling to contrast biodiversity in protected areas with comparable unprotected sites6,7. Here we take advantage of the world’s largest citizen science biodiversity dataset – eBird8 – to quantify the extent to which protected areas in eight tropical forest biodiversity hotspots are effective at retaining bird diversity, and to understand the underlying mechanisms. We found generally positive effects of protection on the diversity of bird species that are forest-dependent, endemic to the hotspots, or threatened or Near Threatened, but not on overall bird species richness. Furthermore, we show that in most of the hotspots examined this is driven by protected areas preventing both forest loss and degradation. Our results support calls for increasing the extent and strengthening the management efforts within protected areas to reduce global biodiversity loss9–11.

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