scholarly journals GUILD PAKAN KOMUNITAS BURUNG DI KEBUN RAYA LIWA KABUPATEN LAMPUNG BARAT

2021 ◽  
Vol 4 (2) ◽  
pp. 195
Author(s):  
Abdurrahman Rofiq ◽  
Sugeng Prayitno Harianto ◽  
Dian Iswandaru ◽  
Gunardi Djoko Winarno
Keyword(s):  
Bird Species ◽  
Point Count ◽  
Botanical Gardens

The vegetation on Liwa Botanical Gardens is used by several types of birds as a place of rest, sleep, nest and forage. This study was purposely done to classify bird species based on feed group / guild type. The method used in this research is point count. The bird species data obtained were grouped based on the feed guild which was divided into 6 types of guilds including, insectivoree, carnivoree, frugivore, granivoreee, nectarivoreous, and omnivoree. Each species only have one guild type, as many as 41 species of birds were found in Liwa Botanical Gardens, which was dominated by frugivores.

scholarly journals An Assessment on Bird’s Diversity in Bagmati River Corridor

1970 ◽  
Vol 2 (1) ◽  
pp. 34-40
Author(s):  
Saroj Thapa ◽  
Shambhu Paudel ◽  
Dipak BK
Keyword(s):  
Public Perception ◽  
Habitat Degradation ◽  
Bird Species ◽  
Habitat Destruction ◽  
Conservation Area ◽  
Point Count ◽  
The Public ◽  
One Year ◽  
Bagmati River ◽  
River Corridor

Bagmati River is considered as a potential conservation area in terms of the bio-diversity conservation due to its unique and diversified habitat distribution. Due to various causes, the river is being polluted and hence habitat degradation rate is increasing. As a consequence, the direct effect is seen on birds inhabiting there. Aiming the assessment of bird's diversity, one year survey was conducted in Bagmati River from Tilganga Bridge to chobhar Gorge Bridge (here after termed as Bagmati river corridor) by applying the point count method .In the total enumeration, 100 of birds species were recorded among which 7 are listed in CITES appendix. The bird species that are regarded as globally threatened are not recorded in the study area. In this report, some potential patches in the study area, are described as hot spots, considering the higher probability of recording maximum number of birds species. The public voice is also collected to find out the public perception on the present status of birds of Bagmati river corridor using the questionaire method. Some causes of habitat destruction and some potential conservation measures are also mentioned. Key Words: Bagmati river corridor, Birds, Conservation, Hotspots, Diversity, Habitat   DOI: 10.3126/init.v2i1.2520 The Initiation Vol.2(1) 2008 pp34-40

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

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.

scholarly journals KEANEKARAGAMAN JENIS BURUNG DI KAWASAN HUTAN LINDUNG GUNUNG SIRIMAU

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.  

scholarly journals Connections of alien birds species with alien plants of parks and botanical gardens

2021 ◽  
Vol 15 (1) ◽  
pp. 79-92
Author(s):  
T. V. Shupova ◽  
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Communities ◽  
Bird Species ◽  
Bird Communities ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Botanical Gardens ◽  
Number Of Species ◽  
Forest Parks

Introduction. In urban conditions, alien species of biota have become an integral part of the cultural landscape. Today, an overall assessment of the influence of alien species on the functioning of ecosystems of their secondary range as is relevant. Such an assessment requires knowledge of the connections formed by alien species in the secondary habitat. The purpose of the study was to find the connections of alien bird species with alien plant species in the parks and botanical gardens of Kyiv. Methods. Assessment was carried out in 10 forest parks, 3 botanical gardens, and 14 urban parks. In parks and botanical gardens, there is a wide range of plants alien to Kyiv Region, in contrast to forest parks. The number and distribution of birds were determined using the method of transect counts. The total area under study was about 370 hectares. Principal Component Analysis of the characteristics of habitats on which the number of alien birds may depend has been carried out. In the research, α-diversity indices of bird communities; number of people (individuals/km); number of pets (individuals/km); park’s area (ha); part of the territory; under the trees (%); part of alien species on plants communities (%) were analyzed. Results. Parus major, Turdus merula, Erithacus rubecula, Fringilla сoelebs dominate in all communities. Columba palumbus, Ficedula albicollis, Turdus pilaris, Columba livia, Apus apus, Sturnus vulgaris, Passer domesticus sometimes dominate in bird communities in parks and botanical gardens. There are no alien species in forest parks. 4 alien species nest in parks and botanical gardens: Streptopelia decaocto, Dendrocopos syriacus, Phoenicurus ochruros, Serinus serinus (from the last century). Phylloscopus trochiloides was observed for the first time. Nesting of Ph. trochiloides was not confirmed. Alien birds are not evenly distributed (0–3 species). Nest density is low: S. decaocto 0.013±0.01–0.021±0.01, D. syriacus 0.031±0.01–0.043±0.04, Ph. ochruros 0–0.034±0.02, S. serinus 0.013±0.01–0.017±0.01. We assume that alien bird species is an element that replaces the species that were eliminated from the community. Their nesting in forest parks is an indicator of a disruption of the functioning of the forest ecosystem as a result of anthropogenic transformation of the forest. The presence of alien species of birds in modern parks and botanical gardens is normal. Their biotopes were created on the sites of destroyed landscapes and with using alien plant species. Conclusion. In parks and botanical gardens, a specific structure of the plant community has developed due to the introduction of alien plant species, with a tree height of 3–5 m. As a consequence, alien birds find nesting stations in communities of nesting birds, which were not occupied by native species due to the absence of many species of tree canopy nesters and ground nesters birds. Alien species of birds also get access to vacant food resources. Alien birds use vacant resources. It was found that the area of parks has the most profound positive impact on the number of species of alien birds (+0.517), as well as the ratio of alien birds (+0.227). Other important correlations observed were the following: the number of species of alien birds in the bird communities – a part of alien species in plant communities (+0.084), the ratio of alien birds – part of alien species in plant communities (+0.041). The strongest negative connection is as follows: the number of species of alien birds in the bird communities – the number of pets (-0.213), the ratio of alien birds – the number of pets (-0.384).

Problems with Avian Point Counts for Estimating Density of Northern Bobwhite—A Case Study

2011 ◽  
Vol 2 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Roger D. Applegate ◽  
Robert E. Kissell ◽  
E. Daniel Moss ◽  
Edward L. Warr ◽  
Michael L. Kennedy
Keyword(s):  
Count Data ◽  
Distance Sampling ◽  
Bird Species ◽  
Northern Bobwhite ◽  
Model Fit ◽  
Point Count ◽  
Point Counts ◽  
Occupancy Estimation ◽  
Detection Probabilities

Abstract Point count data are used increasingly to provide density estimates of bird species. A favored approach to analyze point count data uses distance sampling theory where model selection and model fit are important considerations. We used uniform and half normal models and assessed model fit using χ2 analysis. We were unsuccessful in fitting models to 635 northern bobwhite Colinus virginianus observations from 85 avian point locations spanning 6 y (P ≤ 0.05). Most observations (74%) occurred in the outermost (>100-m) distance radius. Our results violated the assumptions that all observations at the point are detected. The assumption that birds were assigned to the correct distance interval also was probably violated. We caution managers in implementing avian point counts with distance sampling when estimating northern bobwhite population density. We recommend exploring other approaches such as occupancy-estimation and modeling for estimating detection probabilities.

scholarly journals A Fixed-radius Point Count Method for Nonbreeding and Breeding Season Use

The Auk ◽  
1986 ◽  
Vol 103 (3) ◽  
pp. 593-602 ◽  
Author(s):  
Richard L. Hutto ◽  
Sandra M. Pletschet ◽  
Paul Hendricks
Keyword(s):  
Bird Species ◽  
Common Species ◽  
Bird Abundance ◽  
Point Count ◽  
Bird Density ◽  
Count Method ◽  
Species Abundances ◽  
Fixed Radius ◽  
Point Count Method ◽  
A Site

Abstract We provide a detailed description of a fixed-radius point count method that carries fewer assumptions than most of the currently popular methods of estimating bird density and that can be used during both the nonbreeding and breeding seasons. The method results in three indices of bird abundance, any of which can be used to test for differences in community composition among sites, or for differences in the abundance of a given bird species among sites. These indices are (1) the mean number of detections within 25 m of the observer, (2) the frequency of detections within 25 m of the observer, and (3) the frequency of detections regardless of distance from the observer. The overall ranking of species abundances from a site is similar among the three indices, but discrepancies occur with either rare species that are highly detectable at great distances or common species that are repulsed by, or inconspicuous when near, the observer. We argue that differences in the behavior among species will preclude an accurate ranking of species by abundance through use of this or any other counting method in current use.

Comparing disturbance-sensitivity between plants and birds: a fine-grained analysis in a suburban remnant wetland

2014 ◽  
Vol 60 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Giuliano Fanelli ◽  
Corrado Battisti
Keyword(s):  
Anthropogenic Disturbance ◽  
Bird Species ◽  
Breeding Birds ◽  
Similar Distribution ◽  
Point Count ◽  
Fine Grained ◽  
Vegetation Disturbance ◽  
Wintering Birds ◽  
The Mean ◽  
Point Count Method

Hemeroby is a concept widely employed in assessment of the effect of human activities on vegetation. In this study, we apply the concept to a set of bird species occurring in a Mediterranean remnant wetland. The aim was to obtain an average hemeroby index for two seasonally related bird assemblages (i.e. breeding and wintering) based on the information related to two levels of plant hemeroby. In a grid of 47 cells 100×100 m-wide, we sampled the fine-grained distribution of plant communities (Braun-Blanquet method/cell) in parallel with birds (point count method; one point count/cell), assigning an independent score of hemeroby to plants and birds on a scale from I to V, from pristine habitats with a lack of natural and/or anthropogenic disturbance (score = I) to completely artificial habitats (score = V). Whereas bird species ranged from categories II to V, vegetation types spanned only the categories III and IV. Therefore, bird species showed a higher variability in hemeroby. By comparing hemeroby scores, we can deduce the effect that the vegetation disturbance may have on bird species. The mean hemeroby for breeding birds, calculated on all the species occurring in a determined plant hemeroby category, is not significantly different between sites with higher (= IV) and lower (= III) plant hemeroby (i.e. higher and lower level of disturbance). The mean hemeroby of the wintering birds was significantly different in the two levels of plant hemeroby (i.e. higher vs. lower hemeroby). Our data suggest that only the wintering birds had a hemeroby distribution pattern related to that of the plants, while the distribution of breeding birds showed no association, i.e. they appear in similar distribution in both plant hemeroby classes. This pattern may reflect the characteristics of the habitat types in relation to bird seasonality: a large section of wintering bird species are strictly water-related, linked to habitats with low plant hemeroby, so appearing more sensitive to change in plant hemeroby when compared to breeding species. Although explorative, our data may be useful in wildlife management, implying that in wetland–grassland mosaics the more sensitive wintering bird species are suitable as indicators aimed to test the effect of natural and anthropogenic disturbances.

scholarly journals KEANEKARAGAMAN JENIS BURUNG DIURNAL DI DESA BUKIT BATU KECAMATAN SUNGAI KUNYIT KABUPATEN MEMPAWAH

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Jimmi Kurniawan ◽  
Hari Prayogo ◽  
Ratna Herawatiningsih
Keyword(s):  
Species Diversity ◽  
Method Of Lines ◽  
Bird Species ◽  
Swamp Forest ◽  
Dry Land ◽  
Point Count ◽  
The Method Of Lines ◽  
Combination Of Methods ◽  
Index Index ◽  
Land Farming

The bird is an indicator for the quality of the environment and has a role in ensuring the passage of tropical forest regeneration process naturally in Indonesia. The bird is one of the animals with the highest diversity in Indonesia. The purpose of this research is to examine the diversity of diurnal birds and can be relied upon the efforts of wildlife preservation process. This research method using a combination of methods to calculate point (Point Count) or IPA (Ponctuele d'Abundance Index – Index of abundance at that point) and the method of lines (Transect), observations conducted quietly at some point later noted the encounter against birds, observations using the six-point count/observation station. The whole of the observations was on track (Transect) the length of 1,800 meters. The results of this study that the diurnal bird species diversity in Bukit Batu village Sungai Kunyit Subdistrict Mempawah Regency. Course found 26 species of birds in three diurnal habitat types with a total of 420 individuals. The value of the index of diversity (H ') type on every type of ecosystem is on the secondary, 2.19 swamp forest, shrub swamps 2.32, and dry land farming 2.18. This indicates that each type has the different diversity of habitat.Keyword: Birds, Diurnal, Ecosystems, Indicators and Species diversity 

scholarly journals Patterns of Species Richness and Abundance in Badingilo National Park in South Sudan

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Thomas Francis Lado ◽  
David Gwolo Phanuel Mogga ◽  
Richard Angelo Lado Benjamin
Keyword(s):  
Species Richness ◽  
National Park ◽  
Habitat Type ◽  
Bird Species ◽  
Abundant Species ◽  
Point Count ◽  
Number Of Species ◽  
Riverine Habitat ◽  
Species Richness And Abundance ◽  
Point Count Method

The study was carried out to determine patterns of birds’ species richness, alpha and beta diversities; and abundance in Badingilo national park using a 10 m fixed-radius point count method. A total of 2670 individuals were recorded from 182 points in the park. The highest expected number of species (Jack1 estimator) was observed in the Riverine habitat and least was in the Agriculture and Human settlement habitat type. The total number of species observed in the park was 63; however Jack1 estimator indicated that there were 68 species in the park. The majority of the birds observed during the study were resident species, few migratory and Palaearctic bird species. Few birds observed in the park were abundant. The most abundant species was the village weaver (381 individuals), and the rarest species were black-bellied bustard, barn owl, black scimitar bill and tree pipit (one individual each).

scholarly journals Spesies Burung pada Beberapa Tipe Habitat di Kecamatan Lhoknga Kabupaten Aceh Besar

2017 ◽  
Vol 4 (1) ◽  
pp. 15
Author(s):  
Samsul Kamal ◽  
Elita Agustina ◽  
Zahratur Rahmi
Keyword(s):  
Bird Species ◽  
Point Count ◽  
Count Method ◽  
Line Transects ◽  
Point Count Method

Lhoknga subdistrict is an area that has a habitat for many species of fauna, including birds. References about species of birds in some habitats are still very limited. Therefore, it is necessary to make a research on bird species in several types of habitat in the district of Lhoknga. The aim of the research is to figure out birds species in several types of habitats in the Lhoknga subdistrict. The data were collected by using the point count method and line transects. The results showed that there were 39 species of birds from 21 families found in Lhoknga district. Based on the PP. No. 07 of 1999, it was found that there were 14 species of protected birds in Lhoknga subdistrict.

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