Influence of forest stand structure on the occurrence of bird community in Skaln&aacute; Alpa National Nature Reserve in the Veľk&aacute; Fatra Mts. (West Carpathians)

The study deals with the influence of the structure, texture and dynamics of a spruce-beech primeval forest on the bird community in Skalná Alpa National Nature Reserve in the Veľká Fatra Mts. (West Carpathians, Slovakia) in the years 1982–2002. The abundance of Norway spruce (Picea excelsa Lam.) was highest both in the optimum and decomposition stage. In the growth stage the number of Norway spruce (Picea excelsa Lam.) trees was quite low. The texture of spruce-beech virgin forest was very variable. Percentage ratios of individual stages on the area of 42.16 ha were as follows: growth stage 38.3%, optimum stage 20.1% and decomposition stage 41.6%. Altogether 46 bird species were represented in the bird community during the spring season. Mean total density was 85.8 ind/10 ha. The bird community consisted of 52 species in the summer season, 45 in the autumn migration season, 34 in the winter season, and of 47 in the spring migration season. The highest density was found in the bird community during the autumn migration season (109.8 ind/10 ha), the lowest in the winter season (24.6 ind/10 ha). During the spring migration season, both the spectrum of bird species and total density of bird community increased by the number of migratory species that came back from winter habitats.

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Composition and Diversity of Over-Wintering Aquatic Bird Community on Poyang Lake, China

Diversity ◽

10.3390/d12080308 ◽

2020 ◽

Vol 12 (8) ◽

pp. 308

Author(s):

Megersa Tsegaye Debela ◽

Qingming Wu ◽

Lu Chen ◽

Xueying Sun ◽

Zhuo Xu ◽

...

Keyword(s):

Management Practices ◽

Local Community ◽

Nature Reserve ◽

Poyang Lake ◽

Winter Season ◽

Bird Species ◽

Bird Community ◽

Aquatic Bird ◽

National Nature Reserve ◽

Study Sites

The present study aimed to investigate the structure, composition and diversity of the over-wintering aquatic bird community of Poyang Lake, including Poyang Lake National Nature Reserve (PNNR), Nanji National Nature Reserve (NNNR) and Duchang Provincial Nature Reserve (DPNR), China. After the preliminary survey, birds surveyed from vantage points at each study site between the years 2016 and 2020 in the winter season. A total of 58 bird species belonging to nine orders and 13 families were observed. The study showed variation in effective species numbers (Species richness, Shannon’s diversity and Simpson’s diversity) among the three study sites and the survey years. Nanji National Nature Reserve had the highest avian diversity, whereas Duchang Provincial Nature Reserve had the lowest. Globally threatened bird species, Siberian Crane (critically endangered), Oriental Stork (endangered), found in our study sites. However, the current management practices of the nature reserve and conservation of this globally threatened bird species are inadequate, especially of Duchang Provincial Nature Reserve. Therefore, for long term conservation of birds in these areas, it needs continuing intentional improvement of the sites and awareness creation to the local community.

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Structure of the breeding bird assemblage of a primeval alder swamp in the Šúr National Nature Reserve

Biologia ◽

10.2478/s11756-009-0025-7 ◽

2009 ◽

Vol 64 (1) ◽

Cited By ~ 2

Author(s):

Martin Korňan

Keyword(s):

Nature Reserve ◽

Diversity Index ◽

Bird Species ◽

Mean Value ◽

Total Density ◽

Breeding Bird ◽

National Nature Reserve ◽

Study Plot ◽

The Mean ◽

Bird Assemblage

AbstractThe structure of a breeding bird assemblage of a primeval alder swamp in the Šúr National Nature Reserve (the Danube Basin) was studied in the period 1992–1995. A 16 ha forest interior study plot was established for bird censusing. Population abundances were estimated by a combined version of the mapping method from the end of March to the beginning of July. Altogether, 42 breeders were recorded and the mean total density of species total across years was 125.15 ± 12.73 pairs/10 ha (CV = 10.17%). Two species were eudominant (≥ 10%): Sturnus vulgaris and Anas platyrhynchos, and six species were dominant (5% ≤ 10% <): Ficedula albicollis, Fringilla coelebs, Phylloscopus collybita, Parus major, Sylvia atricapilla, Erithacus rubecula. The Shannon diversity index (H′) varied between 3.98–4.10 bites. The evenness index (J′) reached values between 0.79–0.81. Expected species diversity in a random sample of 100 pairs calculated by rarefaction [E (S 100 pairs)] was 21.35 ± 0.92 species derived as a mean value from the years 1992–1995. The mean rarefaction estimate on the area [E (S 10 ha)] was 22.75 ± 1.58 species. Bird species richness and diversity were significantly higher in the study plot in comparison to the mean value of European wet alder forests. These results are comparable with the values of structural assemblage parameters of the primeval stands dominated by alder within the Białowieża National Park, Poland.

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Breeding avifauna of mature forest stands in the Borki Forest and its dynamics at the turn of the 21st century

Forest Research Papers ◽

10.1515/frp-2016-0026 ◽

2016 ◽

Vol 77 (3) ◽

pp. 239-255

Author(s):

Grzegorz Rąkowski ◽

Krzysztof Czarnocki ◽

Joanna Ukalska

Keyword(s):

Coniferous Forest ◽

Bird Species ◽

Bird Community ◽

Species Group ◽

Mapping Technique ◽

Total Density ◽

Forest Stands ◽

Population Densities ◽

Breeding Bird ◽

The Mean

Abstract The composition and structure of the breeding bird community in the Borki Forest in north-eastern Poland were investigated during two separate periods: 1994–1996 and 2012–2014. Bird censuses were carried out in three plots located in mature oak-hornbeam, ash-alder and mixed coniferous forest stands. A standard combined mapping technique for estimating the number of breeding birds was applied. A total of 74 bird species bred at least once within any plot during 1994–1996 or 2012–2014. The structure of the bird assemblages on particular plots displayed a high degree of similarity, exceeding 75%, which means that they represent essentially the same bird community. However, the investigated assemblages have changed substantially over the 20 years. Both, the number of breeding bird species and the population densities on all plots, were much higher in 2012–2014 than in 1994–1996. The mean number of breeding species on all plots was over 50% higher in 2012–2014 than in 1994–1996, whereas the mean total density of breeding pairs increased by more than 60%. Total population densities on the plots increased as a result of an increase in population densities of individual bird species combined with an increase in the number of breeding species. Due to different rates of population growth for certain species, also the composition of dominating species group have changed. The observed changes in the avifauna of the Borki Forest were most probably due to an enrichment of the forest habitats structure, which was caused by natural factors, such as ageing of forest stands, forest succession and a change in water regime by beaver dams, as well as by forest management, including group felling within or in the vicinity of plots and uncovering of the forest edge.

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KOMPOSISI GUILD KOMUNITAS BURUNG DI AREA PANAS BUMI CAGAR ALAM DAN TAMAN WISATA ALAMKAMOJANG JAWA BARAT INDONESIA

Jurnal Hutan Tropis ◽

10.20527/jht.v6i2.5400 ◽

2018 ◽

Vol 6 (2) ◽

pp. 124

Author(s):

Diyah Kartikasari ◽

Satyawan Pudyatmoko ◽

Novianto Bambang Wawandono ◽

Pri Utami

Keyword(s):

Power Plants ◽

Nature Reserve ◽

Bird Species ◽

Bird Community ◽

Bird Communities ◽

West Java ◽

Point Count ◽

Number Of Species ◽

Nature Park ◽

Number Of Individuals

This study aims to investigate the response of Bird Communities Guild Composition in Geothermal Area Kamojang Nature Reserve and Kamojang Nature Park West Java Indonesia. We compared the number of species, the number of individuals and the composition of bird guilds of directly affected (DL) and not affected (TL) in Kamojang geothermal working area, Kamojang nature reserve and Kamojang nature park in Bandung regency of West Java Province. The directly affected sites were surrounding production wells or geothermal power plants (30 samples) whereas indirectly affected sites were with distance of 3,000 m to 9,000 m from those facilities (42 samples). The data collection was carried out during two seasons; dry and rainy season in (2015-2016). We collected bird community data with the point count method which was placed systematically on each site. We found 124 bird species in CA / TWA Kamojang and 90 species (1560 individuals) of birds at the sample point. The number of species and the number of individual in TL locations is greater than the DL (DL locations = 65 species, 525 individuals; TL sites = 72 species, 1035 individuals). There is a difference of responses between bird communities in the DL and TL sites which is indicated by differences in the mean number of species and number of individuals in each point count.The mean number of species and the number of individual birds per point count in the TL location is greater than DL.The CA / TWA area of Kamojang has seven bird guilds: insectivores, frugivores, granivores, nectarivores, carnivores, piscivores and omnivores. The results of the significance test on the number of species and the number of individuals per guild showed no significant differences between the DL and TL sites, but the birds in DL were commonly found (generalists) and birds found in TL sites were mostly specialist. This proves that the TL location has better environmental conditions or relatively undisturbed.Penelitian ini bertujuan untuk menguji komposisi guild komunitas burung di Area Panas Bumi Cagar Alam dan Taman Wisata Alam Kamojang. Penulis membandingkan jumlah jenis, jumlah individu dan komposisi guild burung pada lokasi yang terdampak langsung (DL) dan tidak terdampak langsung (TL) di Wilayah Kerja Panas Bumi Kamojang, Cagar Alam Kamojang dan Taman Wisata Alam Kamojang, Kabupaten Bandung, Provinsi Jawa Barat. Lokasi yang terkena dampak langsung berada di sekitar sumur produksi atau pembangkit listrik tenaga panas bumi (30 sampel) sedangkan lokasi yang tidak terdampak langsung adalah dengan jarak 3.000 m sampai 9.000 m dari fasilitas tersebut (42 sampel). Pengumpulan data dilakukan selama dua musim; musim kemarau dan penghujan (2015-2016). Kami mengumpulkan data komunitas burung dengan metode point count yang ditempatkan secara sistematis di setiap lokasi. Kami menemukan 124 jenis burung di CA/TWA Kamojang dan 90 jenis (1560 individu) burung pada titik contoh. Jumlah jenis dan jumlah individu burung di lokasi TL lebih besar dibanding lokasi DL. (lokasi DL (65 jenis; 525 individu) dan lokasi TL (72 jenis; 1035 individu). Terdapat perbedaan respon antara komunitas burung di lokasi DL dan TL yang ditunjukkan dengan perbedaan rata-rata jumlah jenis dan jumlah individu tiap titik contoh. Rata-rata jumlah jenis dan jumlah individu burung tiap titik contoh pada lokasi TL lebih besar dibandingkan lokasi DL. Kawasan CA/TWA Kamojang mempunyai dari 7 macam guild burung yaitu : insektivora, frugivora, granivora, nektarivora, karnivora, piscivora dan omnivora.Hasil uji signifikansi terhadap jumlah jenis dan jumlah individu setiap guild menunjukkan tidak adanya perbedaan nyata antara lokasi DL dan TL, namun pada lokasi DL burung-burung yang ditemukan merupakan burung yang umum ditemukan (generalis) dan burung yang ditemukan di lokasi TL sebagian besar merupakan burung spesialis. Hal ini membuktikan bahwa lokasi TL memiliki kondisi lingkungan yang lebih baik atau relatif tidak terganggu.

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Testing the Likeable, Therefore Abundant Hypothesis: Bird Species Likeability by Urban Residents Varies Significantly with Species Traits

Land ◽

10.3390/land10050487 ◽

2021 ◽

Vol 10 (5) ◽

pp. 487

Author(s):

Lillian Collins ◽

Grant D. Paton ◽

Sara A. Gagné

Keyword(s):

Undergraduate Students ◽

Species Conservation ◽

Bird Species ◽

Bird Community ◽

Species Traits ◽

Community Change ◽

Habitat Availability ◽

Urban Residents ◽

Behavioral Traits

The urbanization of landscapes filters bird communities to favor particular species traits, driven in part by the changes that homeowners make to the amount and quality of habitat in yards. We suggest that an ultimate driver of these proximate mechanisms underlying bird community change with respect to urbanization is the likeability of species traits by urban residents. We hypothesize that bird species likeability, modulated by species traits, influences the degree to which homeowners alter the availability and quality of habitat on their properties and thereby affects species population sizes in urbanized landscapes. We refer to this new hypothesis as the Likeable, therefore Abundant Hypothesis. The Likeable, therefore Abundant Hypothesis predicts that (1) bird species likeability varies with species morphological and behavioral traits, (2) homeowners use trait-based likeability as a motivator to modify habitat availability and quality on their properties, and (3) residential habitat availability and quality influences species populations at landscape scales. We tested the first prediction of the Likeable, therefore Abundant Hypothesis using a survey of 298 undergraduate students at the University of North Carolina at Charlotte who were asked to rank their preferences for 85 forest generalist and edge/open country songbird species grouped according to 10 morphological and behavioral traits. Survey respondents preferred very small, primarily blue or black species that are insectivorous, aerial or bark foragers, residents, and culturally unimportant. On the other hand, respondents disliked large or very large, primarily yellow or orange species that forage on the ground and/or forage by flycatching, are migratory, and are culturally important. If the Likeable, therefore Abundant Hypothesis is true, natural resource managers and planners could capitalize on the high likeability of species that are nevertheless negatively affected by urbanization to convince homeowners and residents to actively manage their properties for species conservation.

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Fire and Mechanical Forest Management Treatments Support Different Portions of the Bird Community in Fire-Suppressed Forests

Forests ◽

10.3390/f12020150 ◽

2021 ◽

Vol 12 (2) ◽

pp. 150

Author(s):

Lance Jay Roberts ◽

Ryan Burnett ◽

Alissa Fogg

Keyword(s):

Sierra Nevada ◽

Fire Severity ◽

Bird Species ◽

Bird Community ◽

Fire Disturbance ◽

Long Term Effects ◽

High Severity ◽

Commercial Thinning ◽

Silvicultural Management ◽

Total Community

Silvicultural treatments, fire, and insect outbreaks are the primary disturbance events currently affecting forests in the Sierra Nevada Mountains of California, a region where plants and wildlife are highly adapted to a frequent-fire disturbance regime that has been suppressed for decades. Although the effects of both fire and silviculture on wildlife have been studied by many, there are few studies that directly compare their long-term effects on wildlife communities. We conducted avian point counts from 2010 to 2019 at 1987 in situ field survey locations across eight national forests and collected fire and silvicultural treatment data from 1987 to 2016, resulting in a 20-year post-disturbance chronosequence. We evaluated two categories of fire severity in comparison to silvicultural management (largely pre-commercial and commercial thinning treatments) as well as undisturbed locations to model their influences on abundances of 71 breeding bird species. More species (48% of the community) reached peak abundance at moderate-high-severity-fire locations than at low-severity fire (8%), silvicultural management (16%), or undisturbed (13%) locations. Total community abundance was highest in undisturbed dense forests as well as in the first few years after silvicultural management and lowest in the first few years after moderate-high-severity fire, then abundance in all types of disturbed habitats was similar by 10 years after disturbance. Even though the total community abundance was relatively low in moderate-high-severity-fire habitats, species diversity was the highest. Moderate-high-severity fire supported a unique portion of the avian community, while low-severity fire and silvicultural management were relatively similar. We conclude that a significant portion of the bird community in the Sierra Nevada region is dependent on moderate-high-severity fire and thus recommend that a prescribed and managed wildfire program that incorporates a variety of fire effects will best maintain biodiversity in this region.

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Bird community structure in natural and urbanized habitats along an altitudinal gradient in Pauri district (Garhwal Himalaya) of Uttarakhand state, India

Biologia ◽

10.2478/s11756-012-0068-z ◽

2012 ◽

Vol 67 (4) ◽

Cited By ~ 8

Author(s):

Archana Naithani ◽

Dinesh Bhatt

Keyword(s):

Community Structure ◽

Altitudinal Gradient ◽

Diversity Index ◽

Bird Species ◽

Bird Community ◽

High Elevation ◽

Base Line ◽

Natural Habitats ◽

Forest Habitat ◽

Rarefaction Analysis

AbstractIn the Indian subcontinent there is hardly any study that compares the bird community structure of urban/suburban areas with those of forest habitat. The present survey identified diverse assemblages of birds in the Pauri district at different elevations. A total of 125 bird species belonging to 40 families including two least count species (Lophura leucomelanos and Pucrasia marcolopha) were recorded during this survey in the forest and urbanized habitats of Pauri District (Garhwal Hiamalaya) of Uttarakhand state, India. The high elevation (Pauri 1600–2100 m a.s.l.), mid elevation (Srikot-Khanda 900–1300 m a.s.l.) and low elevation (Srinagar 500–900 m a.s.l.) contributed 88.8%, 63.2% and 58.4% of the total species respectively. Rarefaction analysis and Shannon diversity index showed that the high elevation forest habitat had highest bird species richness (BSR) and bird species diversity (BSD) followed by the mid and then the low elevation forests. BSR and BSD fluctuated across seasons at all elevations but not across habitat types. Present study provides a base line data about avian community composition in urbanized and natural habitats along altitudinal gradient in the study area. This information may be useful to the conservation biologists for the better management and conservation of the avifauna in the Western Himalaya, a part of one of the hot biodiversity spots of the world.

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Influence of cliffs on bird community diversity

Canadian Journal of Zoology ◽

10.1139/z97-195 ◽

1998 ◽

Vol 76 (2) ◽

pp. 278-287 ◽

Cited By ~ 10

Author(s):

J D Matheson ◽

D W Larson

Keyword(s):

Bird Species ◽

Bird Community ◽

Community Diversity ◽

Bird Species Richness ◽

Narrow Component ◽

Habitat Features ◽

Habitat Mosaic ◽

The North ◽

Talus Slope ◽

Additive Influence

Cliffs along the Niagara Escarpment in Ontario, Canada, support a long, narrow presettlement forest that includes three distinct geomorphic and vegetation zones: cliff edge, cliff face, and talus slope. This unique landform provides an opportunity to evaluate differences in bird communities between the escarpment and adjacent forest relative to habitat features. We sampled forest birds 12 times during the summer of 1994 in plots located in plateau forests, on talus slope, at cliff edges, and on cliff faces. Eleven habitat variables considered important to birds were also sampled in the plots. We arranged plots along six randomly spaced transects at a south site and a north site. Both sites had the consistent habitat heterogeneity considered important to birds. Bird species richness and composition responded to this heterogeneity, but differently at each site: plateau deciduous forests always had the lowest richness and the simplest species composition, whereas both cliff edges and talus slopes had a higher diversity of birds. Cliff faces had large numbers of species in the south but smaller numbers in the north. Escarpment zones form a habitat mosaic that supports many species not found in the adjacent forest and is consistent with the effect of habitat edge. The results suggest that cliffs represent a significant additive influence on avian biodiversity, even when the cliff is a very narrow component of the landscape.

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Diversity, status and habitat usage of avifauna at sadar upazila, magura, Bangladesh

Bangladesh Journal of Zoology ◽

10.3329/bjz.v48i2.52434 ◽

2021 ◽

Vol 48 (2) ◽

pp. 441-456

Author(s):

Ashikur Rahman Shome ◽

Md Mahabub Alam ◽

Md Fazle Rabbe ◽

Mohammad Mijanur Rahman ◽

Mohammad Firoj Jaman

Keyword(s):

Rural Areas ◽

Urban Areas ◽

Winter Season ◽

Bird Species ◽

Diversity Indices ◽

Habitat Diversity ◽

Seasonal Abundance ◽

Line Transect ◽

Common Myna ◽

Rural And Urban

A study on diversity, status, and habitat preference of avifauna was conducted from November 2017 to October 2018 in Magura Sadar upazila, Magura. Data was collected through direct field observations using line-transect method. Field surveys were made for three days per month in both rural and urban sites. A total of 140 species of birds belonged to 18 orders and 48 families were reported. Among the total species, 55% (77 species) were non-passerines and 45% (63 species) passerines with the highest individuals were counted under order Passeriformes. Resident bird species were dominant (106 species, 75.71%) over migratory (34 species, 24.28%) species. Species richness was the highest in the rural areas (124 species, 88.57%) and occurrence was the highest in winter season (97 species, 69.29%). The maximum species were recorded from trees (87 species, 62.14%) as preferred habitat. In this study, in total 4,060 individuals of birds were counted and among them, 51.55% (n=2093) were observed in the rural areas and 48.45% (n=1967) were in the urban areas. The highest number of birds was found in December (10.34%, n=432) and seasonal abundance was the highest in winter (40.15%, n=1630). Abundance was the highest for Common Myna (5.76%, n=234) among all recorded species. Diversity indices showed that the bird species were the most diverse in the rural areas in the winter season and in July. Habitat diversity indices were the highest for trees and birds used different types of habitats at different times for roosting, breeding and feeding. Regarding the observation status, 29.28% species was very common, 4.28% common, 31.42% fairly common, and 35% were few. This baseline data indicate that this study site is significant from the ecological and conservation point of views. Therefore, further research is necessary to understand how this avian diversity is maintained in this ecological setting. Bangladesh J. Zool. 48(2): 441-456, 2020

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Bird richness and composition in a Cerrado fragment in the State of São Paulo

Brazilian Journal of Biology ◽

10.1590/s1519-69842010005000001 ◽

2010 ◽

Vol 70 (2) ◽

pp. 243-254 ◽

Cited By ~ 11

Author(s):

LT Manica ◽

M Telles ◽

MM Dias

Keyword(s):

Conservation Status ◽

Bird Species ◽

Low Frequency ◽

Bird Community ◽

Sao Paulo ◽

The State ◽

São Paulo ◽

Conservation Area ◽

Tropical Regions ◽

Bird Richness

Bird species richness is an important measure for monitoring biodiversity changes. We analysed avifauna richness and composition in a 472 ha protected cerrado fragment and surroundings at Fazenda Canchim (RL-CPPSE), São Carlos, in the State of São Paulo (SP). We carried out 95.1 hours of observation (22 visits) at irregular intervals from May 2004 to December 2006. Qualitative surveys were done walking through tracks inside the fragment and on the roads at its edge. We recorded 160 species, six of which were endemic to Cerrado domain, 22 migratory, seven threatened within the State of São Paulo, and two globally threatened. We found 28 species in the cerradão, 110 in the cerrado sensu stricto, 13 in the gallery forest, 26 in the reservoir border, 26 in pasturelands and sugar cane monoculture and 55 in an anthropic area. Most of the species had low frequency of occurrence in all vegetation forms. Insectivores were the major trophic category (46.9%), which is typical in tropical regions, and it is also related to resource availability. Omnivores followed with 19.4%, granivores with 8.8% and frugivores with 7.5%. We conclude that, despite its size and conservation status, our study area has a remarkable bird community and must be considered as a priority conservation area to preserve bird species in Sao Paulo State.

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