scholarly journals A checklist of the winter bird community in different habitat types of Rosekandy Tea Estate of Assam, India

2014 ◽  
Vol 6 (2) ◽  
pp. 5478-5484 ◽  
Author(s):  
Aftab Ahmed ◽  
Mithra Dey
Keyword(s):  
Bird Community ◽  
Habitat Types

scholarly journals Population Densities and Community Structure of Birds in Jackson Hole: A Reassessment after 25 Years

1991 ◽  
Vol 15 ◽  
pp. 144-147
Author(s):  
Martin Cody
Keyword(s):  
Community Structure ◽  
National Park ◽  
Interspecific Interactions ◽  
Bird Community ◽  
Population Densities ◽  
Habitat Types ◽  
Grand Teton National Park ◽  
Jackson Hole ◽  
Study Sites

The award covers research expenses for a comparison of bird community structure--species, diversities, densities and distribution, and interspecific interactions--in two habitat types in Jackson Hole/Grand Teton-National Park, 1966-68 data versus 1991-92 data. In 1991 two study sites were re-established in the park, in sites as nearly overlapping as possible sites worked previously in 1966-68. The sites are a) willow scrub habitat, ca. 100 m west of Moran Junction; b) grass-sagebrush/forb meadow, ca. 200 m SE of Moran Junction.

The influence of habitat types on bird community in urban parks

2015 ◽  
Vol 35 (12) ◽  
Author(s):  
杨刚 YANG Gang ◽  
王勇 WANG Yong ◽  
许洁 XU Jie ◽  
丁由中 DING Youzhong ◽  
吴时英 WU Shiying ◽  
...  
Keyword(s):  
Urban Parks ◽  
Bird Community ◽  
Habitat Types

scholarly journals Bird community structure as a function of habitat heterogeneity: A case of Mardi Himal, Central Nepal

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Naresh Pandey ◽  
Laxman Khanal ◽  
Neeti Chapagain ◽  
K. Deepak Singh ◽  
Bishnu Prasad Bhattarai ◽  
...  
Keyword(s):  
Community Structure ◽  
Habitat Heterogeneity ◽  
Bird Species ◽  
Bird Community ◽  
Elevational Gradient ◽  
Feeding Guilds ◽  
Habitat Types ◽  
Conservation Area ◽  
Point Count ◽  
Central Nepal

Abstract. Pandey N, Khanal L, Chapagain N, Singh KD, Bhattarai BP, Chalise MK. 2021. Bird community structure as a function of habitat heterogeneity: A case of Mardi Himal, Central Nepal. Biodiversitas 22: 262-271. Community structure of birds at different habitat types is underexplored in the montane environment of the central Himalaya. Therefore, this study explored bird community structure in different habitat types in Mardi Himal of the Annapurna Conservation Area, central Nepal, and tested association of different feeding guilds with the habitats. Data on the avian richness and abundance were collected in the winter and the summer of 2019 by point count method along the elevational gradient in every 100 m rise and analyzed using ordination methods. A total of 673 individuals of 112 bird species from 35 families under 13 orders were recorded. Among the observed orders and families, the order Passeriformes (77 species) and family Muscicapidae (16 species) were the most dominant. A linear species accumulation curve was obtained in both seasons. Species richness and abundance were found higher at forest edges of mid-elevations and insectivores were the most abundant birds. Frugivorous and carnivorous birds showed no specific association with habitat types, whereas, insectivores and omnivores were more abundant in pastureland and forest, respectively. Our results revealed that the community composition of birds varies with the habitat types and their feeding specialization is one of the major determinants.

scholarly journals A study of composition and diversity variation of avifauna along with different types of agroforestry system in Kibet town, Southern Ethiopia

2022 ◽  
Vol 95 (1) ◽  
Author(s):  
Hussen Yasin ◽  
Wondimagegnehu Tekalign
Keyword(s):  
Diversity Index ◽  
Habitat Type ◽  
Bird Species ◽  
Bird Community ◽  
Agroforestry System ◽  
Southern Ethiopia ◽  
Habitat Types ◽  
Feeding Guild ◽  
Different Types ◽  
Ploceus Cucullatus

Abstract Background Agroforestry is an integrated land-use system that plays a great role in the conservation of landscape biodiversity. The study aimed to assess the composition and diversity of avian species along with different habitat types of agroforestry in Kibet Town, Southern Ethiopia. Methods Four habitat types of agroforestry system which are home gardens, live fences, parkland, and eucalyptus woodlot were identified. Line transects were used for bird surveys. The Shannon diversity index (H′) and species evenness index (E) were used to compare diversity among habitat types. A similarity percentages (SIMPER) test was carried out to identify the main species and feeding guild that typified each habitat type. The overall significance was assessed with the ANOSIM test using PAST (version 4.03). Results A total of 50 bird species belonging to 28 families and 10 orders were recorded. Order Passeriformes (67.3%) had the highest number of species. Bird community composition differed among habitat types. The dissimilarity was mainly due to White-browed robin-chat (Cossypha heuglini), Streaky seed-eater (Serinus striolatus), Village Weaver (Ploceus cucullatus), African Paradise-Flycatcher (Terpsiphone viridis), and Black-Headed Paradise Flycatcher (T. rufiventer). The finding also revealed that insectivore was the dominant feeding guild. Conclusions The present study shows evidence that more insectivore bird species use different types of agroforestry as habitat and foraging sites. So, any concerned bodies who have engaged in avian conservation should give special consideration to this modified landscape.

Disentangling the role of shared ancestry and the environment on leaf stable isotopes

2019 ◽  
Author(s):  
Marko J. Spasojevic ◽  
Sören Weber1
Keyword(s):  
Stable Isotopes ◽  
Environmental Conditions ◽  
Evolutionary History ◽  
Environmental Control ◽  
Phylogenetic Signal ◽  
Individual Species ◽  
Habitat Types ◽  
Δ13c And Δ15n ◽  
Environmental Controls ◽  
Shared Ancestry

Stable carbon (C) and nitrogen (N) isotopes in plants are important indicators of plant water use efficiency and N acquisition strategies. While often regarded as being under environmental control, there is growing evidence that evolutionary history may also shape variation in stable isotope ratios (δ13C and δ15N) among plant species. Here we examined patterns of foliar δ13C and δ15N in alpine tundra for 59 species in 20 plant families. To assess the importance of environmental controls and evolutionary history, we examined if average δ13C and δ15N predictably differed among habitat types, if individual species exhibited intraspecific trait variation (ITV) in δ13C and δ15N, and if there were a significant phylogenetic signal in δ13C and δ15N. We found that variation among habitat types in both δ13C and δ15N mirrored well-known patterns of water and nitrogen limitation. Conversely, we also found that 40% of species exhibited no ITV in δ13C and 35% of species exhibited no ITV in δ15N, suggesting that some species are under stronger evolutionary control. However, we only found a modest signal of phylogenetic conservatism in δ13C and no phylogenetic signal in δ15N suggesting that shared ancestry is a weaker driver of tundra wide variation in stable isotopes. Together, our results suggest that both evolutionary history and local environmental conditions play a role in determining variation in δ13C and δ15N and that considering both factors can help with interpreting isotope patterns in nature and with predicting which species may be able to respond to rapidly changing environmental conditions.

Evaluating Riparian Restoration Success: Long-Term Responses of the Breeding Bird Community in California’s Lower Putah Creek Watershed

2018 ◽  
Vol 36 (1) ◽  
pp. 76-85 ◽  
Author(s):  
Kristen E. Dybala ◽  
Andrew Engilis ◽  
John A. Trochet ◽  
Irene E. Engilis ◽  
Melanie L. Truan
Keyword(s):  
Bird Community ◽  
Riparian Restoration ◽  
Breeding Bird ◽  
Restoration Success ◽  
Creek Watershed ◽  
Putah Creek

Structure and dynamics of a high mountain wetland bird community in southern Norway: An 18-year study of waders and gulls

2007 ◽  
Vol 30 (0) ◽  
pp. 4 ◽  
Author(s):  
Eivind Østbye ◽  
Olav Hogstad ◽  
Kjartan Østbye ◽  
Leif Lien ◽  
Erik Framstad ◽  
...  
Keyword(s):  
Bird Community ◽  
High Mountain ◽  
Structure And Dynamics ◽  
Southern Norway

CONTRIBUIÇÃO AO CONHECIMENTO DA AVIFAUNA DO MUNICÍPIO DE TAQUARA, RIO GRANDE DO SUL

2019 ◽  
Vol 2 ◽  
pp. 28
Author(s):  
Marcelo Pereira de Barros ◽  
Ana Paula Lima da Silveira ◽  
Bruna Reis Ferreira
Keyword(s):  
Rural Areas ◽  
Rio Grande ◽  
Bird Community ◽  
Frequency Of Occurrence ◽  
Diverse Group ◽  
Rio Grande Do Sul ◽  
Natural Ecosystems ◽  
Environmental Disturbances ◽  
Environmental Pressures ◽  
Hydrographic Basin

As aves destacam-se dentro dos vertebrados por serem um grupo diverso e adaptado a diferentes ambientes, a composição da comunidade de aves de um determinado local é um importante bioindicador ambiental, pois ela reflete alterações recentes ou pretéritas de determinada área. Na Bacia Hidrográfica do Rio dos Sinos, as pressões sobre os remanescentes de ecossistemas naturais são intensas em decorrência da urbanização crescente, do estabelecimento de indústrias e da ampliação das fronteiras agrícolas, esses fatores associados geram a redução e fragmentação de habitats, com impactos irrecuperáveis para a flora e a fauna. Devido à escassez de dados sobre a avifauna do município de Taquara, o presente estudo teve como objetivo levantar informações sobre o grupo, listando as espécies de aves locais. Entre agosto de 2016 e junho de 2017 foram realizadas quatro amostragens mensais em duas áreas rurais do município, totalizando 44 campanhas de observação e 132 horas de esforço amostral. As espécies foram identificadas e classificadas conforme sua frequência de ocorrência mensal, em espécies comuns e raras. Foram registradas 133 espécies distribuídas em 47 famílias, o que representa mais de 20% das espécies ocorrentes para o estado. Ao longo do período amostrado, 90 espécies foram classificadas como comuns e 47 consideradas raras para as áreas pesquisadas.Palavras-chave: Aves. Bacia hidrográfica do Rio dos Sinos. Preservação.ABSTRACTBirds stand out within vertebrates because they are a diverse group adapted to different environments. The composition of the bird community of a certain place is an important environmental bioindicator since it reflects recent or previous environmental disturbances of a certain area. In the Sinos River Basin, environmental pressures on the remnants of natural ecosystems are intense as a result of increasing urbanization, the establishment of industries and expansion of agricultural frontiers which generate habitat reduction and fragmentation with irrecoverable damages on flora and fauna. Due to the scarcity of data on the avifauna of the municipality of Taquara, the present study aimed to gather information and list the species of local birds. Between August 2016 and June 2017, four monthly samplings were carried out in two rural areas of the municipality, totaling 44 observation campaigns and 132 hours of sample effort. The species were identified and classified as common and rare according to their frequency of occurrence. There were 133 species distributed in 47 families, representing more than 20% of the species that occurred in the state. During the sampled period, 90 species were classified as common and 47 were considered rare for the areas surveyed.Keywords: Birds. Hydrographic basin of Sinos River. Preservation.

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