Bird Diversity Research Papers - Academia.edu (original) (raw)

Forest structural complexity could be a good predictor of overall species diversity. Since tree harvesting has a negative effect on forest structure, it is important to analyse the effects of this disturbance on sensitive groups, as forest birds. In this study, we aimed to shed light on this aspect by analysing a set of univariate metrics in bird communities breeding in three coppiced forest habitats (coppiced of chestnut, coppiced of Turkey oak and high forest of beech) along a gradient in age classes. We hypothesised that, with increasing forest age, (i) breeding bird communities will progressively increase in diversity and, (ii) due to higher habitat heterogeneity due to coppicing, a higher species turnover in the first age classes could appear. In each forest habitat, all the metrics significantly increased, from recently coppiced to more mature forests, due to progressively higher availability of resources and niches along the gradient. When comparing paired forest habitats, abundance and richness were significantly different only in the two oldest age classes, highlighting that responses to different tree composition were more marked in the mature phase. In all forest habitats, species turnover (β w diversity) decreased progressively along the age gradient and was highest in the youngest age classes where many vegetation layers were present. Due to different coppice management practices, growth regime and consequent habitat heterogeneity, chestnuts showed a different pattern when compared to other forest habitats, with an increase in species turnover (β w diversity) at intermediate level. With increasing age of the forests, all the diversity metrics increased and species turnover decreased, highlighting the role of older forests as strategic habitats for highly structured bird communities.

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- Ecology, Food web ecology, Bird Diversity, Birds Ecology

- by rosli ramli
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- Geography, Bird Diversity, Tropical Islands

During spring 1996 and summer 1997 we assessed the richness and relative abundance of birds in the Los Huemules del Niblinto Nature Sanctuary, .a private protected area, located in the Andes of south-central Chile. We selected the five most representative environments: a coihue-roble forest (CRF), a pure lenga forest (PLF), a shrub-coihue sapling (CS), a ñirre shrub (ÑS) and the Niblinto river (NR). In the CRF we registered 27 species being the Thorn-tailed Rayadito, Whitecrested Elaenia and Green-backed Firecrown the most frequent. In this habitat, we detected four species with conservation concern: Chilean Pigeon, Magellanic Woodpecker, Rufous-legged Owl and Chilean Bicolored Hawk. In the PLF we observed 10 species being Thorn-tailed Rayadito and Blue and White Swallow codominants. Twenty species were found in the CS being the Black-chinned Siskin dominant. In the ÑS we discovered 18 species being Thorn-tailed Rayadito the most frequent. Within this habitat, we registered five exclusives species: Barwinged Cinclodes, Cinnamon-bellied
Ground Tyrant, Ochrea-naped Ground Tyrant, Rufous-backed Negrito and Yellow-bridled Finch. Along the Niblinto River we detected 10 species being Black-crowned Nihgt Heron, Torrent Duck and Dark-bellied Cinclodes typical river-dwelling. The CFR, vegetationally the most complex habitat, had also the highest in bird richness. Total number of species was 41. In adittion, we added new occasional records of birds made in later expeditions, giving a total 63 species for this Andean site.

- by Ricardo Figueroa
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- Ornithology, Conservation Biology, Protected areas, Bird Diversity

The present investigation is an attempt to decipher the information on the diversity and census data flora and avifauna of Jogimatti state forest area of Chitradurga district. The study revealed a total of 84 species of plants belonging to 57 families and a total of 49 species of birds belonging to 21 families of which 45 were resident (R) and 4 resident migratory (RM). Water birds were not encountered during the study period this is probably due scarcity of water bodies in the study area. The date collected was analyzed to determine important value index (IVI) for flora, Shannon Weiner’s Index, Indices of species richness (R) and evenness (E) and index of dominance (ID) for both flora and avifauna. The objective of this work is to help foresters and ecologists by giving a picture of the floral and avifaunal status of the study area. The biodiversity of this area is threatened by cattle grazing, water scarcity and related problems. Hence, it is suggested to adopt strict control measures to protect and maintain the floral and avifaunal diversity in the Jogimatti forest area.

- by Harisha MN
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- Bird (Ornithology), Bird Diversity, Floral diversity

Bird species diversity of three islands (pulau) in the Straits of Malacca was studied in 2004 and 2007. A total of 12 species of birds were recorded from Pulau Perak, 21 species from Pulau Jarak, and 9 species from Pulau Lalang. Avifauna of these islands not only show differences in species diversity but also in community structures. Among the islands, Pulau Jarak had the highest bird diversity while Pulau Perak had the lowest bird diversity. Although Pulau Perak had more birds, this was contributed by two most abundant species, Brown Noddy (Anous stolidus) and Brown Bobby (Sula leucogaster) which comprised 98.7% of the island's bird population. On the other islands, the most abundant species were White-bellied Sea Eagle, Haliaeetus leucogaster (31% in Pulau Jarak and 34.7% in Pulau Lalang) and Pied Imperial Pigeon, Ducula bicolor (17.5% in Pulau Jarak and 30.4% in Pulau Lalang). This study confirms several earlier records on distribution of certain unique and interesting compon...

- by Rosli Ramli
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- Geography, Bird Diversity, Tropical Islands

Birds are distributed worldwide with their diverse ecological functions in different types of ecosystems. The present study was conducted to estimate the avifaunal diversity in one of the urban water reservoirs of Bhavnagar city-Gaurishankar Lake, popularly known as Bortalav and its adjoining areas from December 2020 to November 2021. Bortalav and its adjoining areas are situated in the urban landscape of Bhavnagar consisting of various types of habitats that attracts different varieties of avifauna. India has around 1341 species of birds recorded so far, out of which 612 are reported from Gujarat. The present study recorded 235 species (21 Orders, 65 Families and 155 Genera) with maximum diversity of order Passeriformes (84 species). Out of total 235 species, 220 species are under Least concern category, 10 species are Near threatened, 4 species are Vulnerable and a species (Aquila nipalensis) is under Endangered category of IUCN. Among the recorded species, 103 species are Common, 80 species are Uncommon, 41 species are Occasional and 11 species are Rare in the study area. The present study denotes the status of avifaunal diversity of Bortalav provided with its present threats to the habitat and birds which will aid in future research perspective and conservation strategies.

- by Vishal M . Makwana and +1
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- Wetlands, Conservation Biology, Diversity, Ecology

99 taxa of avifauna belonging to 43 families has been recorded in successive years (2013 and 2014) in a seasonal survey carried out at Jaldapara National Park located within Himalayan Terai region of North Bengal. The open forest habitat found out to be the richest in avifauna among the other habitat types. Among the feeding guilds, insectivores dominate in species strength and in the number habitat types represented. Survey shows that the landscape of Jaldapara is frequently visited by 2 Vulnerable (Lesser Adjutant and Pallas's Fish Eagle) and 1 Near Threatened species (River Lapwing). The study documented Kalij Pheasnatwhich is probably new record from this region.

- by Deep Chandan Chakraborty
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- Avifauna, Birds, Bird Diversity, Diversity of Birds Species

Birds play a significant role in many ecosystems by providing a variety of ecological services. Birds eat pests, pollinate flowers, disperse seeds, scavenge carrion, cycle nutrients, and change the environment for the benefit of other species. In this study attempt has been made to record bird diversity at Bahula Dam and its nearby area during January 2020 to June 2021. This is the first avifauna report of Bahula dam and its nearby area. In the survey study total 108 species including water and the land birds were recorded belonging to 16 avifaunal orders and 46 families. Order Passeriformes is dominant in the study area, including 23 families and 44 species (40%), followed by Ciconiformes with 3 families and 11 species (10%), Ansariformes with 1 family and 9 species (8%), Coraciiformes with 4 families and 7 species (6%), Charadriformes with 4 families and 6 species (5%), This survey study represents that species diversity is abundant in spite of many anthropogenic activities. More studies are required to make a complete list of available bird species of this area.

- by Abhay Shelke
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- Bird Diversity, Biodiversity in Avifauna

The study on bird diversity and status of Bonai Forest Division of Sundergarh district, Odisha was carried out between January and December 2011. During the study period, a total of 173 species belonging to 55 families were recorded. Of these 82% (n=141) were residents, 13% (n=23) were winter visitors, 3% (n=6) were summer visitors, 2% (n=3) were passage visitors. Based on frequency of sightings, 47.4% (n=82) bird species were common, 31.8% (n=55) were uncommon, 16.8% (n=29) were rare and 4.05% (n=7) were occasional. The avifauna diversity in the study area shows the importance of the area as an ideal bird habitat.

- by Himanshu Shekhar Palei
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- Avifauna, Birds, Bird Diversity, Diversity of Birds Species

Hatale dam is nearer to Hatale village in Chalisgaon Taluka in Jalgaon District of Maharashtra State, India. It belongs to Khandesh and Northern Maharashtra region. It belongs to Nashik Division. It is located 92 KM towards South from District head quarters Jalgaon. 17 KM from Chalisgaon. 330 KM from State capital Mumbai. Hatale is surrounded by Kanand Taluka towards South, Bhadgaon Taluka towards North , Pachora Taluka towards East , Khultabad Taluka towards South. Birds play prominent and diverse role in religion, and popular culture. They have their functional role in the ecosystem as potential pollinators and scavengers and are rightly called as bio-indicators. All birds are not aquatic but few of them reside on the bank of reservoir. Birds are important group of aquatic food chain. They feed on vegetation, fishes and other animals of the reservoir (Donar et. al 2012). In India, small water-storage reservoirs or tanks are a distinctive feature which provides important feeding and nesting areas for a wide range of water birds (Grimmett et al. 2001). In this work attempt has been made to record the bird diversity in winter season especially to record the migratory bird diversity of this dam. This bird diversity of Hatale dam was studied from December 2018 to January 2019. Total 45 species including water birds and the land bird were recorded belonging to the different 21 families and 09 orders during the study period.

- by Abhay Shelke
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- Bird Diversity

Avian biodiversity is affected by local factors more than by regional ones, with species richness and densities declining as the number of buildings increase; urbanization will be detrimental for many bird species. Among the traits that... more

- by Abhay Shelke
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- Conservation Biology, Bird Diversity, Fish Faunal Diversity

TIGERPAPER is dependent upon your free and voluntary contributions in the form of articles, news items, and announcements in the field of wildlife and nature conservation in the region. In order to better serve the n eeds of our readers please write to us and send in the information you have or let us know if there is any information that you need. We appreciate receiving your letters and make all efforts to respond.

- by Kamal Purohit and +1
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- Bird Diversity

ABSTRACT In this field work attempt has been made to record bird diversity at Varthan Dam and its adjacent areas during November 2018 to February 2019. Total 75 species including water and the land bird were recorded belonging to 11... more

- by Abhay Shelke
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- Bird Diversity

"This paper documents a list of wetland birds with reference to the migratory birds of Kundavada Lake, Davanagere Dist, Karnataka. Till date, there is no report on the wetland birds
of Kundavada Lake and the present study is therefore first of its kind. Hence, the study becomes the preliminary data for future investigation and during the study, around 53 species of birds belonging to 16 families were collected."

Kawalewada dam is constructed on Wainganga river near Tirora tehsil in Gondia district of
Maharashtra State of India. For the survey of birds, three sites Kawalewada dam, Kawalewada talav and
Ramsagar talav were selected near the study area. The survey was conducted with fortnightly visits from
February 2020 to January 2021 near and in the surrounding area of Kawalewada dam in Gondia district of
Maharashtra State for the bird species account. Total 76 bird species including water birds and land birds were
observed belonging to 38 families from the study area. Out of recorded 76 bird species, 09 species (12%) were
occasional (O), 37 species (49%) were common (C) and 30 species (39%) were very common (Vc). Out of 38
families, the family Ardeidae was dominant with seven bird species. The availability of aquatic flora, flowering
plants, large trees and fauna including fishes as the food for the birds which still supports the bird diversity
near the selected study area. Some anthropogenic activities like daily clothe washing, direct bathing, cattle
washing, irrational practices of fish catching in the water and continuous cattle grazing, changing climate and
many other factors near the study area affecting the bird diversity.

- by Dr. Santosh D . Puri
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- Zoology, Conservation Biology, Ecology, Bird Diversity

การสำรวจความหลากหลายทางชีวภาพของสัตว์มีกระดูกสันหลัง ใน 4 กลุ่ม รวมทั้งสิ้น 158 ชนิด (Species) 71 วงศ์ (Families) 25 อันดับ (Orders) ได้แก่ ความหลากหลายของสัตว์เลี้ยงลูกด้วยน้ำนม (mammals) สำรวจพบจำนวน 21 ชนิด จาก 10 วงศ์ 7 อันดับ ความหลากหลายของนก (birds) พบนกทั้งหมด จำนวน 88 ชนิด จาก 43 วงศ์ 15 อันดับ ความหลากหลายของสัตว์เลื้อยคลาน (reptiles)
สำรวจพบ จำนวน 33 ชนิด 28 สกุล 13 วงศ์ 2 อันดับ และความหลากหลายของสัตว์สะเทินน้ำสะเทินบก (amphibians) สำรวจพบจำนวน 16 ชนิด จาก 5 วงศ์ 1 อันดับ

- by Tomm Pummarin
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- Biodiversity, Wildlife Conservation, Biodiversity Research, Bird Diversity

Kamala River is a medium sized river of Nepal that originates from Mahabharat range near Maithan which is near Sindhulighadi in Sindhuli district of Nepal at an elevation of 1200 meters at the latitude 27015' N and longitude 85057' E (FMIS 2006). The objectives of the survey were to record the species richness in kamala river basin and to explore the major threats and conservation issue observed in study area. Three days field surveys were carried out from 18th April 2014 to 20th April 2014. About 8 kilometer stretch of Kamal river basin was taken as a study area from 18 April 2014 to 20 April 2014. 65 species of birds of 10 orders and 31 families were recorded. Of this highest abundance were represented by the member of Passeriformes having 34 species (52%) followed by Ciconiformes 14 (22%), Coraciformes (8%), Falconiformes (6%), Columbiformes (5%), Gruiformes and Piciformes are represented by (2%) and Psitaciformes, Cuculiformes and Ansariformes are represented by 1% for each. More birds are recorded from family Passeridae and Corvidae 12% for each.

- by kanchan parajuli
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- Birds (Ecology), Bird Diversity

This paper documents a list of wetland birds with reference to the migratory birds of Kundavada Lake, Davanagere Dist, Karnataka. Till date, there is no report on the wetland birds of Kundavada Lake and the present study is therefore first of its kind. Hence, the study becomes the preliminary data for future investigation and during the study, around 53 species of birds belonging to 16 families were collected.

- by Shahnawaz Ahmad
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- Geography, Ornithology, Bird Diversity, Avifaunal Survey

To estimate the potential of forest birds to persist in the increasingly deforested island of Sulawesi, we undertook a mist-net survey in the understorey of natural as well as modified forest (forest garden and heavily logged forest) at submontane elevations in Central Sulawesi. A total of forty 102 m mist-net lines were distributed over five 16 ha study sites. Two of the sites were situated in an extensively forested valley, and three in a valley with severely fragmented forest. Of 23 species captured, only seven were typical understorey dwellers of submontane forest, five of which are Sulawesi region endemics. Most were found in similar numbers in natural and modified forest, but one species was significantly more common in modified forest. Of the five endemics, two species were confined to, and one species was significantly more abundant in, the extensively forested valley compared with the severely deforested valley. Our results suggest that the conservation of the remaining submontane forest is crucial to the conservation of Central Sulawesi's understorey bird diversity, but that many Sulawesi endemics might be able to survive in modified habitats.

- by Ani Mardiastuti
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- Deforestation, Sulawesi, Bird Diversity

The bird diversity in campus of Jinggangshan University was preliminarily reported in 2006. In order to know the variation of bird diversity in the campus, we re-investigated the bird diversity during 2009 to 2012. There were 70 bird species recorded, among which, a total of 29 were newly recorded, while 11 once observed disappeared. The changes were caused by the differences of duration and methods between two investigations and did not indicate an actual variation in campus' bird diversity.

- by Dianhua Ke
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- Investigation, Bird Diversity

The birds of "Baltasar Trujillo" Botanical Garden, Agriculture Faculty, Universidad Central de Venezuela. In order to become acquainted with the bird community of "Baltasar Trujillo" Botanical Garden, mist-net samples were taken weekly for one year. We captured 286 individuals belonging to 36 species; although species richness was poor, the Diversity Index was high. The most abundant species was the Spectacled Thrush Turdus nudigenis (Turdidae), accounting 28% of total captures. Additionally, 44 species were only observed, raising the total number of species to 80. Of netted species, 12 (33%) were common and 24 (67%) rare. There were no captures of patrimonial species (endemic, threatened), but three of them were observed: Ortalis r. ruficauda, Aratinga pertinax venezuelae y A. wagleri transilis, a positive aspect in terms of conservation. Also, two migratory species were captured: the Northern Waterthrush, Parkesia noveboracencis (neartic), and the Lesson's Seedeater, Sporophila bouvronides (local); while other three were observed: the Turkey Vulture, Cathartes aura, the Osprey, Pandion haliaetus, and the American Redstart, Setophaga ruticilla. These records provide an intercontinental value to the conservation to the Botanical Garden. Nonetheless, almost half of the birds captured (42%) are considered cinegetic species, most of them demanded as cage birds, a negative aspect in terms of conservation. Most of the species netted (56%) were typical of disturbed habitat. When we compared our netted avifauna with those of two preliminary studies in nearby areas, we found significant similarity values, suggesting that a great part of the Botanical Garden birds came from nearby forests. Indicator families of environmental quality were well represented, including records of Cracidae (observed), Picidae, Furnariidae y Troglodytidae (captured), indicating the healthy environmental quality that still exist in the area. Environmental quality also was reflected in the composition of feeding guilds; insectivorous species were higher in number but grain-dependent birds (granivores, granivore-insectivores) were more abundant. While the Botanical Garden "Baltasar Trujillo" was a very disturbed environment, with a high number of disturbed-habitat species, it could be considered as a location with great potential for conservation because it showed a balanced community structure, including patrimonial, migratory and water birds, and families indicator of good environmental quality. This area could support activities such as local ecotourism and bird conservation.

- by Carlos Verea
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- Ornithology, Bird (Ornithology), Avian Ecology, Birds (Ecology)
- by Sumit Dookia
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- Bird Diversity

The winter avian community in a landscape mosaic dominated by agricultural fields and forest plantations in South-central Chile is described. Bird species richness differed between habitat types with richness in Native vegetation> Pine... more

- by Carolina Berget
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- Urban Ecology, Island Biogeography, Bird Diversity

The study of avian species diversity and abundance at the Taunsa Barrage Ramsar site was carried out from September 2019 to March 2020. Taunsa Barrage is an important wetland for international and local migratory birds, including waterfowls, waders, and long-distance migrant avifauna. Data were collected by direct counts made on four-point transects representing a disturbance gradient due to humans and different habitats. Species diversity indices, analysis of variance (ANOVA), and other statistical methods were used to analyze data. A total of 150 avian species of 19 orders and 53 families were recorded. These included 66 migrant species and 84 resident species. The spotting of ten globally threatened species also highlights the importance of wetland for avian species. On average, 1511 ± 373 (mean ± SD) species of birds were recorded every month. Shannon's diversity index indicated that Transect Point 2 had higher species diversity (H ′ = 3:779), followed by Transect Points 3, 4, and 1 (H ′ = 3:769, H ′ = 3:491, and H ′ = 3:457, respectively). Evenness index showed that birds evenly distributed in September (E = 0:5584) than November (E = 0:3109). ANOVA showed a significant difference (F = 4:800, df = 3, P = 0:002) of avian diversity and abundance among the transect points. But there was no statistically significant interaction between months (F = 1:23, df = 6, P = 0:233). The results showed that the Taunsa Barrage Ramsar site harbors plenty of resident migratory and threatened bird species. Hence, it is important to protect its habitat and need to protect avian diversity by overcoming major threats.

- by Muhammad Z E S H A N Haider
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- Zoology, Ornithology, Bird (Ornithology), Avian Ecology

- by Giuseppe Carpaneto
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- Ecology, Food web ecology, Bird Diversity, Birds Ecology

REGIONAL OFFICE FOR ASIA AND THE PACIFIC TIGERPAPER is a quarterly news bulletin dedicated to the exchange of information relating to wildlife and protected area management for the Asia-Pacific Region.

- by Rajesh Mohapatra
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- Bird Diversity
- by Amol S Lokhande
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- Ornithology, Avian Ecology, Avifauna, Bird Diversity

— To find out the classification information and distribution information of common birds in Nanjing, China, and provide reference for the government to formulate the protection policy of bird, this paper analyzes the bird observation data from 2007 to 2016 in the Bird Observation Center (Nanjing area), and analyzes the ecological changes of the observation points in combination with the Nanjing land using situation. the results show that Nanjing is an important bird habitat, with many species and national protected species, but in recent years, the acceleration of urbanization and human activities have seriously affected these originally good bird distribution areas, government departments should strengthen the response and management.

- by Agriculture Journal IJOEAR
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- Engineering, Research, Bird Diversity, Protected Species

Bird species diversity of three islands (pulau) in the Straits of Malacca was studied in 2004 and 2007. A total of 12 species of birds was recorded from Pulau Perak, 21 species from Pulau Jarak, and 9 species from Pulau Lalang. Avifauna of these islands not only show differences in species diversity but also in community structures. Among the islands, Pulau Jarak had the highest bird diversity while Pulau Perak had the lowest bird diversity. Although Pulau Perak had more birds, this was contributed by the two most abundant species, i.e. Brown Noddy (Anous stolidus) and Brown Booby (Sula leucogaster) which comprised 98.7% of the island's bird population. On other islands, the most abundant species were White-bellied Sea Eagle, Haliaeetus leucogaster (31% in Pulau Jarak and 34.7% in Pulau Lalang) and Pied Imperial Pigeon, Ducula bicolor (17.5% in Pulau Jarak and 30.4% in Pulau Lalang). This study confirms several earlier records on distribution of certain unique and interesting components of the biodiversity of the islands. ABSTRAK Kepelbagaian spesies burung di tiga pulau yang terletak di Selat Melaka telah dikaji pada tahun 2004 dan 2007. Sebanyak 12 spesies burung telah direkodkan di Pulau Perak, 21 spesies di Pulau Jarak, dan Sembilan spesies di Pulau Lalang. Avifauna di pulau-pulau ini bukan sahaja menunjukkan perbezaan dari segi kepelbagaian spesies malah juga dari segi struktur komuniti. Pulau Jarak mencatatkan kepelbagaian burung tertinggi manakala Pulau Perak mempunyai kepelbagaian burung terendah. Walaupun Pulau Perak mempunyai lebih banyak burung, tetapi ini hanya disumbang oleh dua spesies yang paling melimpah iaitu Burung Camar Angguk (Anous stolidus) dan Burung Dendang Laut (Sula leucogaster) yang membentuk 98.7% populasi burung di pulau tersebut. Di pulau-pulau lain, spesies paling melimpah adalah Lang Siput, Haliaeetus leucogaster (31% di Pulau Jarak dan 34.7% di Pulau Lalang) dan Pergam Rawa, Ducula bicolor (17.5% di Pulau Jarak dan 30.4% di Pulau Lalang). Kajian ini mengesahkan beberapa rekod awal mengenai keunikan taburan dan kepentingan komponen biodiversiti pulau.

- by Rosli Ramli
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- Bird Diversity, Tropical Islands

Mindanao is considered one of the richest islands in the Philippines, due to high avifaunal biodiversity. Birds play a vital role in determining the condition of certain areas. The study is a morphological assessment of birds in Malagos watershed, Baguio District, Davao City. It sought to identify and classify the birds species; determine the distribution and compare the taxonomic listing of birds with previous avian surveys in the area. Using point count and mist netting effort, 54 species were identified belonging to 27 families. Three (3) new families were added to the list of previous studies. It included twelve Philippine endemic species, seven Mindanao endemic species, 32 resident species and four species of birds assessed as vulnerable and endangered. The area was also

- by Jayson Ibanez and +2
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- Bird Diversity
- by Sumit Dookia
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- Bird Diversity

99 taxa of avifauna belonging to 43 families has been recorded in successive years (2013 and 2014) in a seasonal survey
carried out at Jaldapara National Park located within Himalayan Terai region of North Bengal. The open forest habitat found out to be the richest in avifauna among the other habitat types. Among the feeding guilds, insectivores dominate in species strength and in the number habitat types represented. Survey shows that the landscape of Jaldapara is frequently visited by 2 Vulnerable (Lesser Adjutant and Pallas's Fish Eagle) and 1 Near Threatened species (River Lapwing). The study documented Kalij Pheasnat which is probably new record from this region.

- by Sandipan Gupta
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- Avifauna, Birds, Bird Diversity, Diversity of Birds Species

- by Rajesh Kumar Mohapatra
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- Bird Diversity

- by Julie Otadoy
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- Asian, Biodiversity, Bird Diversity, Asian Biodiversity
- by Guy Midgley
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- Palaeoclimatology, Earth Sciences, Species Distribution Models, Africa

Avifauna associated to a peach field from Colonia Tovar: a comparative survey with a cloud forest from Pico Codazzi Natural Monument. In order to know the bird community in a peach field, mist-nets samples of its avifauna were taken. Simultaneously, we mist-netted a nearby cloud forest to compare both avifauna and determine the plantation role in conservation. In the peach field 47 species were captured, showing a moderate richness and a high Diversity Index. Other 14 additional species were observed, and elevated the peach avifauna to 61 species, all of them are reported for the first time in peach plantation in Venezuela. Unexpectedly, forest richness was lower with 34 captured species (poor), but its Diversity Index was high too. Other 11 additional species were observed and elevated the forest avifauna to 45 species. When both avian communities were compared, we found a low Similarity Index (IS=17, very poor similarity). This last result, joined to the high diversity indexes observed, suggest that peach establishment changes the community structure more than diversity itself. Just 13 (28%) of peach field species were common, while 17 (50%) represented the forest, an indicative of the higher plantation dynamism compared with the stability community in the forest. Furthermore, peach field showed a more complex community structure as given by the higher number of families present (16 peach vs 10 forest) and feeding guilds (eight peach vs six forest). Also, migratory species (three) were only recorded in the peach field. Nonetheless, peach field was a disturbed environment due to the high number of disturbed-habitat species recorded (38%), and it showed low importance to local avifauna with few records of patrimonial birds (two) compared to the 16 recorded in the forest. Both environments had the same number of families (four) that are indicator of high environmental quality, and both of them were dominated in richness by Trochilidae. Grain-dependent birds were dominant at the peach field (56% of total captures), due to the continuous supply of seeds. In contrast, a higher foliage density and the presence of vines in the forest favored insectivorous birds there. Although the peach field showed a higher diversity and a more complex community structure than the forest, the lack of patrimonial birds, the high number of disturbed-habitat species, mainly granivores, and a similar proportion of migratory birds to other habitats in Venezuela, make peach fields a habitat of lesser importance for bird conservation.

- by Carlos Verea
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- Ornithology, Agroforestry, Bird (Ornithology), Avian Ecology

... Monograph BIODAT. (2004) Biodiversity of the Far Eastern Region: Abundance of nesting bird dpecies. ... Page 13. 37 Philip, C., Stouffer and RO Bierrqoard, Jr. (1995). ... Birds of Malagos Watershed, Southeastern Philippines GL... more

- by Geonyzl L Alviola
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- Asian, Biodiversity, Bird Diversity, Asian Biodiversity
- by Ruvinda de Mel and +2
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- Sri Lanka, Plumage Coloration, Bird Identification, Bird Diversity

- by rosli ramli
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- Geography, Bird Diversity, Tropical Islands

- by Corrado Battisti
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- Ecology, Food web ecology, Bird Diversity, Birds Ecology

- by Corrado Battisti
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- Ecology, Birds (Ecology), Bird Diversity, Woodland Management

- by Sudarsan Panda
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- Bird Diversity

- by Basaling Hosetti
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- Bird (Ornithology), Bird Diversity, Floral diversity

The Crested Goshawk Accipiter trivirgatus has interested birdwatchers and ornithologists on Sri Lanka for many years as is evident by the detailed descriptions made by prominent ornithologists such as Vincent Legge and G. M. Henry. It is a medium sized accipiter widely distributed in the Indomalayan region, and 11 subspecies have been identified. The Sri Lankan subspecies layardi has been recorded island-wide and frequents forest habitats with dense tree cover. Although much has been written about its morphology and behaviour, the small differences in the plumage of the bird reported here have not been mentioned before and together with the accompanying images may be helpful in identifying juvenile Crested Goshawk on Sri Lanka.

- by Amila Sumanapala
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- Sri Lanka, Plumage Coloration, Bird Identification, Bird Diversity