Changes in populations of bird species in roadside softwood scrub remnants/farmland and open eucalypt forest in south-east Queensland, 1981 to 1993

1995 ◽  
Vol 2 (3) ◽  
pp. 232 ◽  
Author(s):  
G. J. Leach
Keyword(s):  
Habitat Management ◽  
Species Turnover ◽  
Bird Species ◽  
Common Species ◽  
Survey Method ◽  
Base Line ◽  
Eucalypt Forest ◽  
Noisy Miner ◽  
The Status ◽  
Monitoring Procedure

Long-term monitoring of bird species provides information on base-line populations and population trends required to ensure that habitat management is effective for their conservation. Two surveys in both spring and autumn over 12 years monitored populations at fixed points in roadside softwood scrub remnants plus adjoining farmland (softwood/farmland) and in eucalypt open forest in south-east Queensland. The main aims were to determine the status of species in each habitat, especially whether the status of any species was changing, and to assess the usefulness of the monitoring procedure. In all, 92 species were observed; 79 in the softwood/farmland and 74 in the eucalypt forest. From 49 to 56 species were observed each year in softwood/farmland and 34 to 46 in eucalypt forest. Annual species turnover in softwood/farmland was about half that in eucalypt forest; 39% of all species were observed every year in the former habitat, but only 19% in the latter. The Torresian Crow was most often observed in softwood/farmland and the Noisy Miner in eucalypt forest. The Torresian Crow was the only species to be among the five most observed in each habitat. Among other common species, 95% or more observations of Bar-shouldered Doves, Superb Fairy-wrens, Yellow Thornbills and Silvereyes were in softwood/farmland, whereas for Weebills, White-throated Gerygones, Buff-rumped Thornbills, White-throated Treecreepers and White-throated Honeyeaters at least 95% of observations were in eucalypt forest, confirming their strong habitat specificities. The number of birds observed increased linearly for eight species in softwood/farmland and six species in eucalypt forest, and decreased for five and four species, respectively, over the 12 years. The most significant trends were for the Crested Pigeon (increase) and Willie Wagtail (decrease) in softwood/farmland, while Peaceful Dove and Rufous Whistler decreased in both habitats. Several species which increased adapt well to partial clearing of woody vegetation and aggressively exclude others, e.g., Noisy Miner, butcherbirds and Pied Currawong. The trends may reflect insidious degradation of habitats. The main value of the survey method was for detecting changes of species that could be used as indicator species ? those that respond most rapidly to habitat change. While the method was efficient, wildlife managers would need to use it regularly to maintain skills, especially because most observations are of bird calls.

Changes in the status and distribution of four species of parrot in the south of Western Australia during 1970-90

1995 ◽  
Vol 2 (2) ◽  
pp. 191 ◽  
Author(s):  
Peter R. Mawson ◽  
John L. Long
Keyword(s):  
Western Australia ◽  
Bird Species ◽  
Fire Regimes ◽  
Common Species ◽  
Winter Rainfall ◽  
Mail Surveys ◽  
Dietary Preferences ◽  
Ecological Requirements ◽  
South West ◽  
The Status

Mail surveys were sent to field staff of the Agriculture Protection Board of Western Australia to assess the distribution and status of four species of parrot in the agricultural region of south-west Western Australia in 1970, 1980 and 1990. The surveys indicated that the populations of the Regent Parrot (Polytelis anthopeplus) and the Western Rosella (Platycercus icterotis) have declined in range considerably since 1970. The populations of the Red-capped Parrot (Purpureicephalus spurius) and the Port Lincoln Ringneck (Barnardius zonarius) have suffered little or not at all during the same period. Factors which appear to have contributed to the observed changes in distribution and status include clearing for agriculture, dietary preferences, physiology, habitat requirements, altered fire regimes, grazing by exotic herbivores and reduced winter rainfall. These surveys have shown that species which were formerly considered common and widespread have declined with little comment having been made of these changes. The implications of this are serious, both for these formerly common species and for rarer bird species which have similar ecological requirements. The technique of mail surveys has considerable merit for quickly assessing the status of some species of birds, but will be limited by the expertise of the respondents and the degree to which the species in question can be observed.

Terrestrial avifauna of the Gippsland Plain and Strzelecki Ranges, Victoria, Australia: insights from Atlas data

2005 ◽  
Vol 32 (6) ◽  
pp. 531 ◽  
Author(s):  
James Q. Radford ◽  
Andrew F. Bennett
Keyword(s):  
Regional Scale ◽  
Bird Species ◽  
Common Species ◽  
Reporting Rate ◽  
Natural Environments ◽  
Study Region ◽  
Typical Species ◽  
The Status ◽  
Using Data ◽  
Landscape Units

The rate and spatial scale at which natural environments are being modified by human land-uses mean that a regional or national perspective is necessary to understand the status of the native biota. Here, we outline a landscape-based approach for using data from the ‘New Atlas of Australian Birds’ to examine the distribution and status of avifauna at a regional scale. We use data from two bioregions in south-east Australia – the Gippsland Plain and the Strzelecki Ranges (collectively termed the greater Gippsland Plains) – to demonstrate this approach. Records were compiled for 57 landscape units, each 10′ latitude by 10′ longitude (~270 km2) across the study region. A total of 165 terrestrial bird species was recorded from 1870 ‘area searches’, with a further 24 species added from incidental observations and other surveys. Of these, 108 species were considered ‘typical’ of the greater Gippsland Plain in that they currently or historically occur regularly in the study region. An index of species ‘occurrence’, combining reporting rate and breadth of distribution, was used to identify rare, common, widespread and restricted species. Ordination of the dataset highlighted assemblages of birds that had similar spatial distributions. A complementarity analysis identified a subset of 14 landscape units that together contained records from at least three different landscape units for each of the 108 ‘typical’ species. When compared with the 40 most common ‘typical’ species, the 40 least common species were more likely to be forest specialists, nest on the ground and, owing to the prevalence of raptors in the least common group, take prey on the wing. The future status of the terrestrial avifauna of the greater Gippsland Plains will depend on the extent to which effective restoration actions can be undertaken to ensure adequate representation of habitats for all species, especially for the large number of species of conservation concern.

scholarly journals Status and habitat associations of birds on Lembata Island, Wallacea, Indonesia, with reference to a simple technique for avifaunal survey on small islands

2002 ◽  
Vol 12 (4) ◽  
pp. 365-381 ◽  
Author(s):  
Colin R. Trainor
Keyword(s):  
Bird Species ◽  
Habitat Associations ◽  
Survey Method ◽  
Cumulative Number ◽  
Species List ◽  
Bird Richness ◽  
The Status ◽  
Closed Canopy ◽  
Disturbed Habitats ◽  
Made In

The islands of Wallacea were surveyed most intensely by field ornithologists in the nineteenth century, and again in the 1990s. However, the status and habitat use of bird species on many islands remains unknown. This study examined birds in several natural and disturbed habitats on Lembata (also known as Lomblen) Island, Indonesia. A total of 78 bird species were recorded including six endemic to the Lesser Sundas, an additional three Wallacean endemics and a total of 27 resident forest species. Including published records, 91 bird species have been recorded for Lembata. Extrapolation from the cumulative number of new species in the 45 samples gave an expected Total Bird Richness of 103.4 species. The frequency of occurrence of Lesser Sundas endemic bird species, all Wallacean endemics and Lesser Sundas endemic subspecies, forest-dependent species and frugivores was greatest in closed canopy forest (at higher elevations). Conversely, generalist “Australo-Papuan” species, granivores and nectarivores occurred more frequently in lowlands (including human-modified habitats). Protected area proposals were made in 1982, but there has been no management of natural areas for biological conservation on Lembata. Conservation activities aiming to stem forest loss and fragmentation in an Important Bird Area in southern Lembata, which includes significant populations of the Flores Green Pigeon Treron floris (Globally Vulnerable), may be an important step. Merits of the “Species list” survey method are discussed.

scholarly journals Knowledge of birds and willingness to support their conservation: an Australian case study

2005 ◽  
Vol 15 (3) ◽  
pp. 225-235 ◽  
Author(s):  
CLEVO WILSON ◽  
CLEM TISDELL
Keyword(s):  
Bird Species ◽  
Information Provision ◽  
Common Species ◽  
Background Information ◽  
Conservation Implications ◽  
The Status ◽  
Survey Results ◽  
Australian Case ◽  
Balanced Information

This case study concentrates on the extent of knowledge among the Australian public of Australia's tropical bird species, and their willingness to support their conservation. In order to place this issue in context, we provide background information on the status of Australian bird species, focusing attention on species that occur in tropical Australia. Then, using questionnaire survey results, we consider the hypothesis that the public's support for the conservation of different bird species depends on their understanding of the species' existence and status. Based on results from a sample of residents in Brisbane, Queensland, we found that knowledge of bird species that occur exclusively in the Australian tropics (including tropical Queensland) was very poor compared with that of those occurring in the Brisbane area that are relatively common. Experimental results indicated that when respondents in the sample had an option to allocate A$1,000 between 10 bird species listed in the survey, they allocated more funds to the better-known and more common species, unless they were provided with balanced information about all the selected species. With balanced information, the average allocation to bird species confined mostly to the Australian tropics, particularly those threatened, increased. This demonstrates the conservation implications of information provision about bird species. The results showed that public education can play a crucial role in attempts to conserve bird species that are poorly known and threatened.

scholarly journals Bird monitoring in a tropical savanna conservation reserve suggests Noisy Miners Manorina melanocephala and adaptive fire management should be a future management focus

2021 ◽  
Vol 38 ◽  
pp. 131-136
Author(s):  
A.S. Kutt ◽  
◽  
L. Hales ◽  
P. Hales ◽  
P. Young ◽  
...  
Keyword(s):  
Prescribed Burning ◽  
Fire Management ◽  
Bird Species ◽  
Environmental Data ◽  
Survey Method ◽  
Bird Conservation ◽  
Tropical Savanna ◽  
Noisy Miner ◽  
Manorina Melanocephala ◽  
Over Time

Long-term monitoring of bird communities over time can provide important data for management, and the adaptation of that management over time. We examined data from bird surveys across 37 sites sampled in five different years from 2009 to 2017 in a 56,000-ha tropical savanna conservation reserve, in northern Queensland. Because of the limitations of the survey method and the lack of environmental data for sites, we examined broad patterns in the abundance of small- and large-bodied birds, abundance of Noisy Miners Manorina melanocephala, land type, survey year, and time since last fire. There was some variation in bird species richness and abundance across the land types, years sampled and Noisy Miner abundance; however, the clearest pattern was decreasing numbers of small-bodied birds and increasing Noisy Miner abundance, and an association between time since fire (i.e. <3 years, >5 years), Noisy Miner abundance and diversity in other birds. The apparent and potentially compounding interaction of Noisy Miners and fire could be an emerging problem. Future fire management needs to be embedded in a program of targeted question-driven monitoring and adaptive management, to provide more assured approaches to prescribed burning that enhances bird conservation.

scholarly journals Assessment of social perception of an invasive parakeet using a novel visual survey method

NeoBiota ◽  
2019 ◽  
Vol 46 ◽  
pp. 71-89 ◽  
Author(s):  
Álvaro Luna ◽  
Pim Edelaar ◽  
Assaf Shwartz
Keyword(s):  
Native Species ◽  
Survey Methods ◽  
Bird Species ◽  
Survey Method ◽  
The Public ◽  
Visual Survey ◽  
The Status ◽  
Full Picture ◽  
Visual Approach ◽  
User Friendly

The perceptions of the general public regarding invasive alien species (IAS) are important in the prevention of future invasions and the success of management programmes. Here we use a novel visual method to investigate the perception of a charismatic IAS, the rose-ringed parakeet, across different stakeholders in Seville, Spain. Respondents were asked to select images of 10 bird species they would like to have present in their surroundings, out of 20 available images, including the parakeet and three other non-natives. This makes the survey easy, fast to take and attractive to potential participants, while prior and potentially biasing information of survey goals is minimised. Although more than 95% of the respondents recognised the parakeet, at least up to family level, only 34.8% selected it. Selection rates were even lower for three other IAS and even more so when the status of non-native species was indicated next to the images, suggesting that a social norm against IAS may be established. To validate our novel visual approach, we also assessed perception via a traditional questionnaire and the results of the two survey methods coincided. Finally parakeet selection differed importantly amongst pre-defined sectors of the public and people who had prior experience with the parakeet selected it less frequently (e.g. farmers, park managers). These results highlight the importance of studying different stakeholders to get the full picture when considering IAS management programmes. Our new visual survey method can thus serve as an excellent and user-friendly tool to study people’s perceptions regarding charismatic IAS and facilitate well-informed and sensible decision-making.

STATISTICAL METHODS FOR THE ASSESSMENT OF AIR POLLUTION OF JHANSI CITY, UTTAR PRADESH, INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
V. S. CHAUHAN ◽  
BHANUMATI SINGH ◽  
SHREE GANESH ◽  
JAMSHED ZAIDI
Keyword(s):  
Air Pollution ◽  
Uttar Pradesh ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Base Line ◽  
Multivariate Statistical ◽  
Large Cities ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
The Status

Studies on air pollution in large cities of India showed that ambient air pollution concentrations are at such levels where serious health effects are possible. This paper presents overview on the status of air quality index (AQI) of Jhansi city by using multivariate statistical techniques. This base line data can help governmental and non-governmental organizations for the management of air pollution.

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

Biologia ◽  
2012 ◽  
Vol 67 (4) ◽  
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.

scholarly journals ONLINE LEARNING DURING LOCKDOWN: EFFECT ON MENTAL HEALTH OF HIGHER EDUCATION STUDENTS

2021 ◽  
Vol 9 (47) ◽  
pp. 11515-11527
Author(s):  
Shubhashree Dash
Keyword(s):  
Mental Health ◽  
Online Learning ◽  
Human Life ◽  
Health Assessment ◽  
Survey Method ◽  
Online Learners ◽  
Mental Health Assessment ◽  
Significant Difference ◽  
The Status ◽  
Descriptive Survey

COVID-19 pandemic has influenced every aspect of human life including Education and Mental Health of the learners. Thus, the present study was aimed at assessing the status of online learning and mental health of online learners and to investigate the relationship between the two variables. The descriptive survey method was adopted for the present study and the collected data analysed quantitatively. For collection of the data two self-made tools were used namely Status of Online Learning Scale for Learners and Mental Health Assessment Scale for Learners. The tools were administered on 140 students. The tabulated data was analysed through the Mean, Standard Deviation, correlation and t test. The results revealed that learners are moderately active in online learning. Mental health of the online learners is moderately stable. Online learning is negatively affecting the mental health of the online learners and there was no significant difference found between the mental health of online learners in terms of the gender and the locality.

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