scholarly journals Spatial and temporal patterns of bird species diversity in the Pantanal of Mato Grosso, Brazil: implications for conservation

2006 ◽  
Vol 66 (2a) ◽  
pp. 393-404 ◽  
Author(s):  
J. E. C. Figueira ◽  
R. Cintra ◽  
L. R. Viana ◽  
C. Yamashita
Keyword(s):  
Human Impacts ◽  
Bird Species ◽  
Bird Community ◽  
The Other ◽  
Resident Species ◽  
Spatial And Temporal Patterns ◽  
Mato Grosso ◽  
Bird Survey ◽  
Bird Species Diversity ◽  
Habitat Generalists

Analysis of a three-year bird survey in the pantanal of Poconé revealed that most of the resident and seasonal birds are habitat generalists, using two or more habitats. In this study, previously sampled habitats were ranked in relation to species richness and stability (as measured by the ratio of seasonal to resident species). In all, nine habitats were grouped into three categories; results are as follows: 1) forests: more species-rich and more stable; 2) cerrado: intermediate levels; and 3) aquatic: less species-rich and less stable. The number of seasonal species remained relatively constant in forests throughout the year, while increasing in the other habitats during the dry season. The abundance of resident species seems to be related to species use of multiple habitats. Although many species were found to be habitat generalists, we discuss possible consequences of habitat loss and other human impacts on efforts to conserve this important bird community.

scholarly journals Mangrove bird community of Paranaguá Bay - Paraná, Brazil

2007 ◽  
Vol 50 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Luiz Augusto Macedo Mestre ◽  
Ricardo Krul ◽  
Valéria dos Santos Moraes
Keyword(s):  
Human Impacts ◽  
Bird Species ◽  
Passer Domesticus ◽  
Bird Community ◽  
Abundant Species ◽  
Marine Conservation ◽  
Point Counts ◽  
Flying Insects ◽  
Paranaguá Bay ◽  
Conservation Plans

This study describes the mangrove bird community of Paranaguá Bay in Paraná - South Brazil. Seasonal surveys were conducted during September 1997 to September 1998 at three sites in Paranaguá Bay. Frequencies and abundances of birds were registered in 200m transects and one hour point counts. A total of 81 bird species were observed in the three sampling sites. Most of the bird species in Paranaguá mangroves are fruits, seeds and arthropods consumers, and predators of flying insects. The most frequent and abundant species were Egretta caerulea, Ceryle torquata, Chloroceryle amazona, Pitangus sulphuratus, Turdus amaurochalinus and Parula pitiayumi. The bird community of these three sites is composed mainly by forest bird species. The mangroves of Paranaguá Bay shelter one of the richest avifauna of Brazilian mangroves. Differences between sampling sites could be related to the proximity of the Paranaguá city and human impacts in the areas. Only in the most disturbed site were observed Passer domesticus and large flocks of Coragyps atratus. This study contributed to the knowledge of mangrove communities, and could be an important basis to fluvial-marine conservation plans in Paraná- Brazil.

scholarly journals Evidence of change in a low-elevation forest bird community of Hawai'i since 1979

2003 ◽  
Vol 13 (3) ◽  
pp. 175-187 ◽  
Author(s):  
Michelle H. Reynolds ◽  
Richard J. Camp ◽  
Bonnie M. B. Nielson ◽  
James D. Jacobi
Keyword(s):  
Native Species ◽  
Bird Species ◽  
Bird Community ◽  
Natural Area ◽  
Present Evidence ◽  
Forest Bird ◽  
Bird Survey ◽  
Elevational Range ◽  
Abundance And Distribution ◽  
Avian Disease

We evaluated the abundance and distribution of low-elevation forest birds on windward Hawai'i Island during August 1993-February 1994, and present evidence of changes in the species composition of the forest bird community since 1979. Endemic Hawaiian birds occurred in native-dominated forests as low as 120 m elevation. Non-native species were detected at all survey locations. We observed non-native Saffron Finch Sicalis flaveola, previously unrecorded in Puna. Variable circular plot surveys of Kahauale'a Natural Area Reserve indicated the disappearance of two native species ('I'iwi Vestiaria coccinea and 'O'u Psittitostra psittacea), and two non-native additions (Red-billed Leiothrix Leiothrix lutea and Kalij Pheasant Lophura leucomelana) to the study area since the Hawai'i Forest Bird Survey conducted in 1979. We present evidence that native 'Elepaio Chasiempsis sandwichensis has experienced a decrease in population density and an elevational range contraction since 1979. Surveys indicate Puna's forest bird community has had increasing aliens and declining native species since 1979. The persistence of some native bird species within the range of avian disease vectors such as Culex quinquefasciatus in forests below 1,000 m elevation presents an important enigma that requires additional study.

Avian species composition and ecological distribution in south lake wetland park, hohhot

2017 ◽  
Vol 17 (1) ◽  
pp. 36-41
Author(s):  
Namkhaidorj Sainbileg ◽  
Wang Tong ◽  
Yang Fan ◽  
Yang Guisheng
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Bird Community ◽  
Residential Area ◽  
Habitat Characteristics ◽  
Species Number ◽  
Resident Species ◽  
Wetland Area ◽  
Dominance Index ◽  
The Relationship

Species diversity and composition of bird community at South Lake Wetland Park in Hohhot city were investigated from October 2013 to September 2014. In total，64 bird species belonging to 33 families and 14 orders were recorded. There are 36 summer migrant species, 15 resident species, 11 traveling species and 2 winter migrant species found. The habitats of birds were grouped into four types (wetland, woodland, grassland and residential area) according to topography and vegetation types in the survey area．Shannon-Weiner Diversity Index (H`) was 2.9450 in wetland area and 1.0768 in grassland area the highest and the lowest values, respectively. The evenness of bird species was 0.4058 lowest in woodland and 0.7581 highest in residential area. The dominance index of bird species was 0.0733 lowest in the wetland and 0.4319 highest in the woodland, respectively. This paper analyzed the relationship between the main dominant bird species and their habitat characteristics，explained the main reasons for the increased bird species number.

scholarly journals The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia

2021 ◽  
Vol 22 (7) ◽  
Author(s):  
Sitti Ramlah ◽  
YANTO SANTOSA ◽  
NYOTO SANTOSO ◽  
SITI BADRIYAH RUSHAYATI
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Land Cover ◽  
Oil Palm ◽  
Bird Species ◽  
The Other ◽  
Bird Diversity ◽  
Number Of Species ◽  
High Species Diversity ◽  
Bird Species Diversity

Abstract. Ramlah S, Santosa Y, Santoso N, Rushayati SB. 2021. The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia. Biodiversitas 22: 3068-3074. The development of oil palm plantations provides various positive impacts. On the other hand, this development is suspected to bring negative impacts on biodiversity, especially reducing bird species diversity. Based on the other research, well-managed oil palm plantations that maintain high conservation value areas have high species diversity. This study aimed to identify bird species diversity in different types of oil palm plantation land covers in North Mamuju. Data observation of bird species was performed using the transect method. There were 4 transects on each land cover. The results of this study showed that the young oil palm area had a high index of diversity and species richness. The high species diversity in the young palm area was caused by habitat variations. There was a water flow that provides more feed sources. The distance between the young oil palm area and secondary forest area affected the number of species, species richness and diversity of bird species. The category of insectivore guild which included aerial insectivores and insectivores was the dominant guild in all types of land cover, both in the number of species and the number of individual abundances.

scholarly journals Avifaunal characterization of Corral de Piedra Palustrine Wetland, Nicoya, Costa Rica

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Roberto Vargas-Masis ◽  
Lilliana Piedra-Castro ◽  
Juan Bravo-Chacón
Keyword(s):  
Costa Rica ◽  
Environmental Changes ◽  
Anthropogenic Activities ◽  
Bird Species ◽  
Bird Community ◽  
Dry Forest ◽  
Special Importance ◽  
Bird Conservation ◽  
Resident Species ◽  
Bird Richness

Wetlands maintain high biodiversity and provide important habitat for many bird species, but now have strong pressure from anthropogenic activities. Birds in wetlands are important indicators of environmental changes and our goal was to characterize the bird community in the wetlands Palustrine Corral de Piedra as a mechanism for conservation of tropical dry forest of Costa Rica. We used point counts to describe bird richness and abundance in open (lakes and flooded grasslands) and wooded areas. We described habitat use and microhabitats, trophic guilds, biogeographic distribution and status in Costa Rica. We recorded 83 species of resident birds belonging to 36 families, of which 65 are resident species and 18 have some migratory status in Costa Rica. Secondary consumer species of small vertebrates corresponded to 45,8% and primary consumers were 25,3%. The birds mainly used trees for perching but use emergent shrubs, floating vegetation and water. We found a large number of Egrets, Flycatchers and Hawks playing important roles as pollinators, seed dispersers and predator is adding significant value to the ecological dynamics of forests and lakes in the area. Corral de Piedra has special importance as a site for the establishment of migratory birds and large number of resident species of conservation concern. We consider that joint efforts between residents and researchers are an important tool for bird conservation in the region.

scholarly journals Species diversity of birds as bioindicators for mangroves damage at Special Economic Zones (SEZ) Mandalika in Central of Lombok, Indonesia

2021 ◽  
Vol 913 (1) ◽  
pp. 012058
Author(s):  
M A A Salahuddin ◽  
I S Rohayani ◽  
D A Candri
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Migratory Birds ◽  
Diversity Index ◽  
Bird Species ◽  
Bird Community ◽  
Development Corporation ◽  
Economic Zones ◽  
Bird Species Diversity ◽  
Near Threatened

Abstract The Mandalika Special Economic Zone (SEZ) was designated as a tourist area in 2015. The development of the Mandalika area directly impacts the sustainability, diversity of species, especially birds that make mangroves their habitat. The study aims to investigate the value of bird species diversity in mangrove habitats as bioindicators. Furthermore, the research has been carried out for three months, from March to May 2021. Research data collection uses the roaming method, and data analysis uses bird community structure analysis (Diversity Index). In this study, 33 species of birds were found. Furthermore, it was found that six species of birds are protected wildlife. In addition, 16 are migratory birds, and 27 are Least Concern (LC) bird species; four species have Near Threatened (NT) status. Meanwhile, the Index of bird community structure is H’ 2.7, uniformity E 0.8, and dominance C 0.9. The value of the bird community structure in the Mandalika SEZ shows the condition of mangrove habitat in the moderate damage category. Therefore, there needs to be an effort to preserve mangroves involving the community, government, and Indonesia Tourism Development Corporation (ITDC) area managers.

More than just Night Parrots: A baseline bird survey of Pullen Pullen Reserve, south-western Queensland

2021 ◽  
Vol 38 ◽  
pp. 1-12
Author(s):  
A.S. Kutt ◽  
◽  
S.G. Kearney ◽  
P.L Kern ◽  
◽  
...  
Keyword(s):  
Global Environmental Change ◽  
Bird Species ◽  
Bird Community ◽  
Arid Environments ◽  
Population Fluctuations ◽  
Wet Season ◽  
Bird Abundance ◽  
Weather Patterns ◽  
Riparian Woodlands ◽  
Bird Survey

The birds of arid environments often exhibit nomadism, seasonal breeding and population fluctuations that respond to highly variable weather patterns. In this study we present data from a baseline bird survey in Bush Heritage Australia’s Pullen Pullen Reserve in south-western Queensland. We conducted seasonal surveys (October–November 2018, May 2019) in 40 sites representing Spinifex (Triodia spp.) grasslands, a complex of Mitchell Astrebla spp./chenopod grasslands and Georgina Gidgee Acacia georginae riparian woodlands, using a standardised 2-ha census. A total of 85 species was recorded in the standardised sites, as well as an additional 16 species recorded opportunistically. Twenty-six species (31%), many of which were nomadic, were recorded from only one of the surveys. Bird abundance and species richness were highest in the post-wet-season survey (May 2018), and there was strong variation in the composition of the bird species between the three habitats surveyed. These data provide a baseline to continue monitoring and to understand the resident and more peripatetic elements of this arid bird community, which should be surveyed regularly to investigate the role of changing management and the long-term influence of global environmental change.

scholarly journals Temporal and spatial variation of richness and abundance of the community of birds in the Pantanal wetlands of Nhecolândia (Mato Grosso do Sul, Brazil)

2017 ◽  
Vol 65 (4) ◽  
pp. 1358 ◽  
Author(s):  
Reginaldo José Donatelli ◽  
Donald P. Eaton ◽  
Guilherme Sementili-Cardoso ◽  
Renata Marques Vianna ◽  
Raphael Whitacker Gerotti ◽  
...  
Keyword(s):  
Migratory Birds ◽  
Riparian Forest ◽  
Bird Species ◽  
Bird Community ◽  
Distribution Patterns ◽  
Habitat Variability ◽  
Mato Grosso ◽  
Negro River ◽  
Rio Negro ◽  
Terrestrial Environments

The Pantanal wetlands represent one of the largest flood plains in the World, with extreme climatic variations between dry and wet seasons. The area shelters a high diversity of habitats, representing the main formations found in this sub-region: grasslands, savannah, forested savannah, riparian forests, bays and salines, and Negro river itself. This habitat variability determines the structure and dynamics of the bird community, because most species are closely related to specific habitats. For this, we studied the abundance of bird species from 2001 to 2004 in a Pantanal area of Fazenda Rio Negro, Aquidauana, Brazil. The abundance was compared among those four consecutive years, seasons (dry and wet), time of the day (morning and afternoon), and also between seven different habitats, in order to determine the variation in distribution patterns and habitats used by birds. For this, we used the linear transect method in each of the seven habitats, and recorded bird abundances to obtain richness. The richness registered in the mosaic of habitats was of 201 species for the savannah, 87 in forested savannah, 116 in the riparian forest, 75 in grasslands, 120 in bays, 92 in the salines and 64 in the Negro river, accounting for 348 species in the Pantanal of Rio Negro. Overall, 98 species of migratory birds were registered. The results highlighted some important issues regarding the total abundance of birds in Nhecolândia: Psittacidae was the most abundant family in the region, with prominence in all environments. Recurvirostridae, a monospecific family, showed expressive abundance due to the dominance of Himantopus mexicanus in the salinas, followed by Ardeidae, Anatidae and Cracidae. Other families with high abundance were Tyrannidae, Columbidae, Thraupidae and Emberizidae, all in predominantly terrestrial environments. Moreover: a) The highest number of specimens was recorded in the morning period and in the dry season, regardless of the habitat; b) there were no differences in abundance in the same habitat along the years, but the abundance was different among habitats. In general, the results indicated that there is a relatively stable bird population in each habitat along the annual cycle, but there were differences in abundance among habitats. Thus, additional studies on food availability in dry and wet seasons should be better explored in the future, either in this region or in other Pantanal regions. This fact could better explain the seasonal dynamics of the richness and abundance of birds in the Pantanal area in general.

scholarly journals SEED DEPOSITION BY BIRDS ON ARTIFICIAL PERCHES AT DIFFERENT DISTANCES FROM A GALLERY FOREST IN THE CERRADO AREA

FLORESTA ◽  
2018 ◽  
Vol 48 (3) ◽  
pp. 363 ◽  
Author(s):  
Ademir Kleber Morbeck Oliveira ◽  
Ricardo Anghinoni Bocchese ◽  
Kátia Raulickis Fortes Pereira ◽  
Thiago Dutra Carvalho
Keyword(s):  
Data Collection ◽  
Bird Species ◽  
Gallery Forest ◽  
Mato Grosso ◽  
Pioneer Tree ◽  
Bird Survey ◽  
Seed Deposition ◽  
One Year ◽  
The City ◽  
Mato Grosso Do Sul

The objective of this study was to evaluate the deposition of seeds under artificial perches located at different distances from a gallery forest in the Cerrado area in the city of Campo Grande, state of Mato Grosso do Sul, Brazil. The experiment was carried out at the Fazenda Escola Três Barras where 20 crude eucalyptus artificial perches were deployed at distances of 10, 20, 40 and 80 meters from the edge of a 400 meter long forest. Data collection was performed every two weeks for a period of one year. A bird survey was carried out at the same time and a total of 190 hours of direct observation were made. Overall, 21,283 seeds were collected beneath the perches; these came from 27 plant species, with the most abundant representation from the pioneer tree species Cecropia pachystachya, Miconia elegans and Myrsine coriacea (93.31% of total seeds). The survey of birds identified 77 species, with a predominance of insectivorous and omnivorous types. The results indicated that perches installed at the greatest distance from the forest area yielded a lower seed deposition rate, demonstrating that distance determines the effectiveness of the artificial perches, although they are still able to attract some bird species. The results of the experiment demonstrated that use of artificial perches is an effective method to promote the deposition of seeds in areas without tree vegetation, favoring the creation of a seed bank.

Performance of two combine harvester header in soybean crops

2020 ◽  
Vol 13 (2) ◽  
pp. 1
Author(s):  
E. M. Samogim ◽  
T. C. Oliveira ◽  
Z. N. Figueiredo ◽  
J. M. B. Vanini
Keyword(s):  
Experimental Design ◽  
Crop Yield ◽  
Field Performance ◽  
Travel Speed ◽  
The Other ◽  
Combine Data ◽  
Mato Grosso ◽  
Tukey Test ◽  
Combine Harvester ◽  
And Performance

The combine harvest for soybean crops market are currently available two types of combine with header or platform, one of conventional with revolving reel with metal or plastic teeth to cause the cut crop to fall into the auger header and the other called "draper" headers that use a fabric or rubber apron instead of a cross auger, there are few test about performance of this combine header for soybean in Mato Grosso State. The aim of this work was to evaluate the soybean harvesting quantitative losses and performance using two types combine header in four travel speed. The experiment was conducted during soybean crops season 2014/15, the farm Tamboril in the municipality of Pontes e Lacerda, State of Mato Grosso. The was used the experimental design of randomized blocks, evaluating four forward harvesting speeds (4 km h-1, 5 km h-1, 6 km h-1 and 7 km h-1), the natural crops losses were analyzed, loss caused by the combine harvester (combine header, internal mechanisms and total losses) and was also estimated the  field performance of each combine. Data were submitted to analysis of variance by F test and compared of the average by Tukey test at 5% probability. The results show the draper header presents a smaller amount of total loss and in most crop yield when compared with the conventional cross auger.

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