scholarly journals Abundance and Diversity of Birds in the Ogbese Forest Reserve, Ekiti State, Nigeria

2019 ◽  
pp. 1-9
Author(s):  
O. O. Ogunyemi
Keyword(s):  
Species Composition ◽  
Relative Abundance ◽  
Bird Species ◽  
Natural Forest ◽  
Vegetation Types ◽  
Plantation Forest ◽  
Forest Reserve ◽  
Dry Seasons ◽  
Abundance And Diversity ◽  
Wet And Dry Seasons

A study was carried out to evaluate the species composition and relative abundance of bird species of the natural and plantation forest of Ogbese Forest Rserve, Ekiti State. The study was conducted from April, 2010 to February, 2011 covering both wet and dry seasons. Sample sites were stratified based on the vegetation types and transect count techniques was employed for the evaluation. A total of 52 bird species consisting of 47 resident and 5 immigrant species was recorded. The species composition of birds during the wet and dry seasons was not significantly different. The natural forest vegetation had the highest species diversity and evenness. The relative abundance score of species during the Wet and dry seasons was variable in both habitats. The result of this study has shown that the natural and plantation vegetation types of Ogbese Forest Reserve, Ekiti State. The heterogeneity of flora species in the natural forest compared to the plantation forest might be responsible for the variation. The management of birds in the reserve should take cognisance of the vegetation types for effective conservation of bird species which are resident in the reserve.

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 Composition, Relative Abundance, and Habitat Association of Avifauna in Zegie Peninsula Forest Patches and Associated Wetlands, Bahir Dar, Ethiopia

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Misganaw Mola ◽  
Dessalegn Ejigu ◽  
Yibelu Yitayih
Keyword(s):  
Species Diversity ◽  
Data Collection ◽  
Species Composition ◽  
Relative Abundance ◽  
Habitat Association ◽  
Wet Season ◽  
Forest Patches ◽  
Species Similarity ◽  
Dry Seasons ◽  
Wet And Dry Seasons

Introduction. Ethiopia is one of the most avifauna rich countries in Africa. Avifaunal surveys are required to inform conservation decisions and enhance land management for biodiversity. Avifaunal surveys from Ethiopia are lacking. This study examines species composition, relative abundance, and habitat association of avian fauna in Zegie Peninsula forest patches and associated wetlands from surveys carried out from August 2018 to March 2019, covering both the wet and dry seasons. Data Collection. Forest, shrub, lakeshore, and wetland habitats were identified as ecologically relevant habitats in the study area for data collection. Data were collected using point count and line transect methods, for 24 days in total for both seasons in the morning and afternoon. Results. A total of 96 species of birds were identified during the whole study period. Out of the total, 40 species were observed during the wet season, 13 during dry and 43 species in both seasons. There was significant variation of species distribution among habitats. During the wet season, the highest species diversity was recorded in the wetland habitat followed by forest habitat. During the dry season, avian diversity was the highest in the lakeshore followed by wetlands. The highest evenness was observed in the shrubland during both the wet and dry seasons. During the wet season, the highest species similarity was recorded between wetland and lakeshore habitats, and during the dry season, the highest species similarity was recorded between forest and shrub habitats. Based on encounter rate data, 64 (66.66%) of the avian species were uncommon. Conclusions. Compared to previous studies conducted in the study area, species diversity was lower. This might be due to various anthropogenic activities such as deforestation of trees for timber and cutting trees for firewood. Therefore, awareness creation should be given to the local community to reduce habitat destruction due to various human-induced factors.

scholarly journals Fruiting phenology and consumption by birds in Ficus calyptroceras (Miq.) Miq. (Moraceae)

2002 ◽  
Vol 62 (2) ◽  
pp. 339-346 ◽  
Author(s):  
J. RAGUSA-NETTO
Keyword(s):  
Food Resource ◽  
Bird Species ◽  
Dry Season ◽  
Dry Forest ◽  
Wet Season ◽  
Frugivorous Birds ◽  
Fruiting Phenology ◽  
Dry Seasons ◽  
Seed Dispersers ◽  
Wet And Dry Seasons

Figs are a remarkable food resource to frugivores, mainly in periods of general fruit scarcity. Ficus calyptroceras Miq. (Moraceae) is the only fig species in a type of dry forest in western Brazil. In this study I examined the fruiting pattern as well as fig consumption by birds in F. calyptroceras. Although rainfall was highly seasonal, fruiting was aseasonal, since the monthly proportion of fruiting trees ranged from 4% to 14% (N = 50 trees). I recorded 22 bird species feeding on figs. In the wet season 20 bird species ate figs, while in the dry season 13 did. Parrots were the most important consumers. This group removed 72% and 40% of the figs consumed in the wet and dry seasons, respectively. No bird species increases fig consumption from dry to wet season. However, a group of bird species assumed as seed dispersers largely increases fig consumption from wet to dry season, suggesting the importance of this resource in the period of fruit scarcity. The results of this study points out the remarkable role that F. calyptroceras plays to frugivorous birds, in such a dry forest, since its fruits were widely consumed and were available all year round.

scholarly journals Assessment of Gmelina, Danta Solid Wood and Plywood Hive Types for Beekeeping

2021 ◽  
Vol 25 (4) ◽  
pp. 625-629
Author(s):  
O.J. Akinbi ◽  
S.A. Adeduntan ◽  
E.O. Toyinbo ◽  
O.T. Alamu
Keyword(s):  
Local Government ◽  
Solid Wood ◽  
Natural Forest ◽  
Vegetation Types ◽  
Forest Plantation ◽  
Plantation Forest ◽  
Ondo State

The study was carried out to compare the performance of wood hive types and plywood hive types in three different vegetation types between June 2018 and May 2020 in Akure South local Government of Ondo State, Nigeria. A total of eighteen (18) Kenyan Top Bar hives made from Danta, Gmelina and plywood were constructed at six (6) each per wood types. Two (2) each of Danta, Gmelina and Plywood hives were installed in three locations: Natural Forest, Plantation forest and cocoa farmland. The rate of colonization of each hive was evaluated at 6, 12, 18 and 24 months after installation in the field. The results revealed that plywood hive type was not colonized in the natural forest throughout the period of study while Danta and Gmelina each recorded 50% colonization at the end of the experiment. In plantation forest, each of the Plywood and Gmelina hives recorded 50% colonization at 24 months after installation while bees in Danta hives absconded before 24th months after installation. In cocoa farmland, Gmelina recorded 100% colonization at 24 months, Danta recorded 50% colonization at 24 months and plywood accounted for 100% colonization at 24 months after installation. An improvement was recorded in the colonization performance at 12,18, 24 month after installation of hives. Plywood hives installed in the cocoa farmland and plantation accounted for higher colonization percentage than natural forest.

scholarly journals Komposisi Jenis dan Populasi Burung Cendrawasih di Kampung Malagufuk Distrik Klayili Kabupaten Sorong Provinsi Papua Barat

2020 ◽  
Vol 7 (2) ◽  
pp. 151-162
Author(s):  
MAYA PATTIWAEL ◽  
AMATUS TUROT
Keyword(s):  
Species Composition ◽  
Bird Species ◽  
Line Length ◽  
Natural Forest ◽  
Line Transect ◽  
Natural Forests ◽  
Diverse Species ◽  
West Papua ◽  
Line Transect Method ◽  
Papua Barat

One of the animals that are easy to find is a bird. Based on data about the increase in the number of bird species, it can be ascertained that these animals can be found in every region in Indonesia, with diverse species and even species that are endemic to a certain area. West Papua is one of the regions in Indonesia which is rich in various species of birds, including Cendrawasih which can also be found in the Natural Forest of Malagufuk Village, Klayili District, Sorong Regency. Based on information from the surrounding community, several types of Cendrawasih are often seen in the natural forests of Malagufuk Village, but their diversity and population are not known with certainty. This study aims to determine the diversity of species and population of Cendrawasih birds in the natural forest of Malagufuk Village, Klayili District, Sorong Regency, West Papua. Thus, the results of this study are expected to be a source of data in the context of preserving and protecting the existing Cendrawasih species. Data collection on the species composition and population of Cendrawasih was carried out using the Line Transect method by making 10 observation lines with a line length of 500 m each and a distance between lines of 100 m. The results showed that there were found 3 spesies of Cendrawasih with estimated populations and densities as follows: Cendrawasih Kuning Kecil (Paradisaea minor) had an estimated population of 7.48 individuals with a density of 2.93 individuals / ha; Cendrawasih Raja (Cicinnurus regius) has an estimated population of 5 individuals with a density of 1.67 individuals / ha; and Toowa Cemerlang (Ptiloris magnificus) had an estimated population of 2.22 individuals with a density of 0.74 individuals / ha. When the research was carried out, it was seen that the three types of Cendrawasih used several types of trees as places for activities (playing or dancing), namely Matoa (Pometia coreacea), Merbau (Intsia bijuga), Damar (Agathis dammara). Beringin (Ficus benjamina), and Pala hutan (Myristica sp) with tree heights above 20 m.

scholarly journals Transformation of the community of nesting birds in the process of reorganization of the forest ecosystem into a park

2019 ◽  
Vol 30 (1) ◽  
pp. 3-13 ◽  
Author(s):  
V. A. Gaychenko ◽  
T. V. Shupova
Keyword(s):  
Species Composition ◽  
Relative Abundance ◽  
Forest Ecosystem ◽  
Bird Species ◽  
Bird Communities ◽  
Individual Species ◽  
Natural State ◽  
Forest Steppe ◽  
Ecological Groups ◽  
Anthropogenic Landscapes

Changes in nesting conditions cause a change in the number of individual species, ecological groups, and, consequently, the structure of the bird community. The purpose of the study is to analyze the possibilities and directions – the transformations of the communitys of nesting birds in the process of reorganization of the forest ecosystem into a park. The material was collected in the territory of one of the forest parks in the Kiev city. Forest is an mixed based on Quercus robur L., Carpinus betulus L., Acer platanoides L., Tilia cordata L., Fraxinus excelsior L. There are individual trees Pinus Syvestris L. The territory of the forest park have different degrees transformed, and includes anthropogenic landscapes and forests plots that have been preserved almost in their natural state. Studies were conducted in the nesting period (April-June) 2012–2017. For analysis average data were used. The number and distribution of the birds were determined by the method of counting on the transects, in the 3 model plots. There are 71 species of birds of 11 orders. Of these, 63 species are nesting. The number of nested species of communities in model plots does not depend on the gradient of anthropogenic transformation, but a average density of nesting birds decrease: 2.91±0.66→2.54±0.67→2.10±0.48 pairs / km of the transect. Nesting birds are distributed between 9 faunogenetic complexes. Of these, in each model plot is represented by 8. Dominated by birds of the European nemoral complex. On the gradient of habitat transformation, a change in the fauna-genetic structure of bird communities in the direction of increasing the proportion of birds of the European nemoral and European forest-steppe complexes, birds of desert-mountain and tropical groups. Boreal and ancient species are superseded. Strengthening the transformation in forest plots, the distribution of birds in community on the ecological groups does change not much. But when the forest ecosystem is replaced by a park ecosystem, the proportion of sclerophiles increases 3–4 times. In all communities is dominated by woody nesters bird. On the gradient of transformation, the number of species of the tree canopies nesters birds (from 21 to 18), ground nesters birds (from 6 to 0), species that use many types of nesting stations (from 4 to 1) are decreases; the number of bird species that nesting in the buildings increases from 0 to 6, and the number of alien species from 0 to 4 (Streptopelia decaocto, Dendrocopos syriacus, Phoenicurus ochruros, Serinus serinus). In the park ecosystems, a decrease in the species composition of woodpeckers, does not entail a significant decrease in the species composition and abundance of secondary hollows nesters birds. Birds of the synanthropic subpopulations are nesting in cavities in park buildings. Most of the indices show an equivalent ά-diversity of all bird communities. The β-diversity of breeding birds during the transformation of the forest ecosystem into a park is reduced by half. Ranked distribution curves of the abundance of species are indicate abrupt changes in the balance of dominance-diversity in communities when a transformation are in the forest ecosystem. The dominant species pressure high are give in community, its abundance is 2.2–2.7 times higher than the abundance of the second species by the abundance. In a slightly transformed forest, this indicator is 1.1 times. Ranked curves of relative abundance of species are a more sensitive index of community transformation than data of indices by the dominance and of species distribution. The introduction into the forest ecosystem of even a small number of anthropogenic structures leads to a significant increase in the relative abundance of synanthropic birds. In our study, in to 2 times. On the gradient of the transformation the absolute number of nesting species of the synanthropic birds increases gradually: 30–33–36; the obligate synanthropic species more stronger: 0–2–7; the index of community synanthropization increases 1.5 times: 0.63–0.72–0.92.

Investigation into the Trichoptera fauna of the Opa Stream in Ile-Ife, southwestern Nigeria

Zoosymposia ◽  
2016 ◽  
Vol 10 (1) ◽  
pp. 85-90
Author(s):  
BABATUNDE AMUSAN ◽  
SYLVESTER OGBOGU
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Water Temperature ◽  
Negative Relationship ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Southwestern Nigeria ◽  
Dry Seasons ◽  
Wet And Dry Seasons

The species composition and abundance of caddisflies in association with some water quality parameters (pH, water temperature and conductivity) in Opa Stream in Ile-Ife, Nigeria were investigated during October 2009–August 2010. One hundred and ninety adult caddisflies collected from the stream represent six species in six genera and three families. Hydropsychidae had three species, which is more than were found in other families. The caddisflies showed a relative mean abundance of 62% and 38.9% in the wet and dry seasons, respectively. Caddisfly abundance was positively correlated with pH and conductivity but there was a negative relationship between water temperature and the abundance of caddisflies in the stream.

scholarly journals Fish Species Composition in Hau River Basin at Hau Giang Province

2018 ◽  
Vol 34 (1) ◽  
Author(s):  
Le Kim Ngoc ◽  
Son Ngoc Huyen ◽  
Nguyen Thi Ngoc Hue ◽  
Le Hoang Anh ◽  
Tran Van Dep ◽  
...  
Keyword(s):  
Species Composition ◽  
River Basin ◽  
Fish Species ◽  
Viet Nam ◽  
Electronic Publication ◽  
Wet Season ◽  
Dry Seasons ◽  
Ecological Region ◽  
Fish Species Composition ◽  
Wet And Dry Seasons

This study was conducted from December 2015 to November 2016 at 44 sampling sites in the Hau River Basin at Hau Giang Province. The analysis results recorded 125 fish species belonging to 19 Orders and 46 families. The fish species composition was more diverse in wet season (119 species) than that in dry season (101 species). Of 19 orders, Cypriniformes, Siluriformes, Anabatiformes, Perciformes and Gobiformes had the highest number of species recorded during wet and dry seasons. The fish species composition had higher diversity in the ecological region regulated by east sea tide than the ecological region regulated by west sea tide and the contiguous ecological region. Keyword Rish species composition, Hau Giang, Hau river References [1] Vũ Vi An, Đoàn Văn Tiến, Lâm Phước Khiêm & Nguyễn Nguyễn Du, Đánh giá sản lượng khai thác của ngư dân vùng Đồng bằng sông Cửu Long, Tuyển tập Nghề cá sông Cửu Long, 428-436, 2011.[2] Mai Đình Yên, Nguyễn Văn Trọng, Nguyễn Văn Thiện, Lê Hoàng Yến & Hứa Bạch Loan, Định loại cá nước ngọt Nam bộ, Nxb Khoa học và Kỹ thuật, Hà Nội, 1992.[3] Trương Thủ Khoa & Trần Thị Thu Hương, Định loại cá nước ngọt vùng Đồng bằng sông Cửu Long, Tủ sách Đại học Cần Thơ, Cần Thơ, 1993.[4] Đoàn Văn Tiến & Mai Thị Trúc Chi, Quan Trắc sản lượng cá đánh bắt ở Đồng bằng sông Cửu Long, Hội thảo quốc gia về phát triển thủy sản vùng hạ lưu sông Mekong, Việt nam, Nxb Nông nghiệp, 2005.[5] Trần Đắc Định, Koichi, S., Nguyễn Thanh Phương, Hà Phước Hùng, Trần Xuân Lợi, Mai Văn Hiếu & Kenzo, U., Mô tả định loại cá Đồng bằng sông Cửu Long, Việt Nam, Nxb Đại học Cần Thơ, Cần Thơ, 2013.[6] Viện Quy hoạch thủy lợi miền Nam, Quy hoạch xây dựng thủy lợi tỉnh Hậu Giang đến năm 2020 và tầm nhìn đến năm 2030 (Tập 1 Báo cáo tổng hợp), Thành phố Hồ Chí Minh, 2012.[7] Phạm Nhật, Vũ Văn Dũng, Đỗ Quang Huy, Nguyễn Cử, Lê Nguyên Ngật, Nguyễn Hữu Dực, Nguyễn Thế Nhã, Võ Sĩ Tuấn, Phan Nguyên Hồng, Nguyễn Văn Tiến, Đào Tấn Hổ, Nguyễn Xuân Hòa, Nick Cox & Nguyễn Tiến Hiệp, Sổ tay hướng dẫn điều tra và giám sát đa dạng sinh học, Nxb Giao thông vận tải, Hà Nội, 2003.[8] Pravdin, I. F., Hướng dẫn nghiên cứu cá (Phạm Thị Minh Giang dịch), Nxb Khoa học và Kỹ thuật, Hà Nội, 1973.[9] Nguyễn Văn Hảo & Ngô Sỹ Vân, Cá nước ngọt Việt Nam, Nxb Nông Nghiệp, Hà Nội, 2001.[10] Nguyễn Văn Hảo, Cá nước ngọt Việt Nam, Nxb Nông nghiệp, Hà Nội, 2005.[11] Nguyễn Văn Hảo, Cá nước ngọt Việt Nam, Nxb Nông nghiệp, Hà Nội, 2005.[12] Rainboth, W. J., Fishes of the Cambodian Mekong, FAO, Roma, 1996.[13] Froese, R. & Pauly, D., FishBase, World Wide Web electronic publication, 2017, truy cập ngày 10/06/2017. www.fishbase.org[14] Nguyễn Ngọc Anh, 2016. Hạn - mặn lịch sử 2016 ở Đồng bằng sông Cửu Long: bài học kinh nghiệm và những giải pháp ứng phó, Tạp chí Khoa học và Công nghệ Việt Nam, Hà Nội, 19/01/2018, http://www.khoahocvacongnghevietnam.com.vn/khcn-trung-uong/13123-han-man-lich-su-2016-0-dong-bang-song-cuu-long-bai-hoc-kinh-nghiem-va-giai-phap-ung-pho.  

scholarly journals SPECIES COMPOSITION AND HABITAT OF INSECTS AT LUNG NGOC HOANG NATURAL PRESERVATION AREA IN HAU GIANG PROVINCE

2017 ◽  
Vol 1 (28) ◽  
pp. 96-103
Author(s):  
Dan Hoang Truong ◽  
Lien Thi Bich Tran ◽  
Tho Truong Bui
Keyword(s):  
Species Composition ◽  
Insect Species ◽  
Oecophylla Smaragdina ◽  
Dominance Index ◽  
High Dominance ◽  
Dry Seasons ◽  
Agro Forestry ◽  
Diverse Habitat ◽  
Wet And Dry Seasons

The survey is carried out at Lung Ngoc Hoang Natural Preservation area in Hau Giang province from May 2016 to May 2017 in four different habitats: habitat of agriculture, habitat of agro-forestry, habitat of Melaleuca forest and habitat of water with 35 sampling stations. The method of using the landing net to collect  specimens was used in this research.  The study result showed that there were 100 insect species belonging to 80 genera of 29 families in 9 Orders. They were characterized by high dominance index and frequency of appearance. Amongst the surveyed species, Oecophylla smaragdina and Dolichodorus thoracicus hadthe highest frequency of appearance in both wet and dry seasons. The findings also indicated that Coastal dike was the most diverse habitat of species  composition as well as the number of individual insects, which were found in both seasons.

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