scholarly journals A rapid assessment of waterbirds and the mangrove status in the Menabe Antimena Protected Area, Madagascar

2021 ◽  
Vol 13 (3) ◽  
pp. 17895-17905
Author(s):  
Christoph Zöckler ◽  
Solofo Ndrina Razanamahenina ◽  
Matthias Markolf
Keyword(s):  
Protected Area ◽  
Rapid Assessment ◽  
Bird Species ◽  
Bird Diversity ◽  
Future Research ◽  
Forest Loss ◽  
Waterbird Species ◽  
The Status ◽  
Ecological Importance ◽  
Sacred Ibis

Mangroves are of great ecological importance that provide multiple ecosystem services, shelter, and habitat for many threatened waterbird species.  The mangroves of the Menabe Antimena Protected Area (MANAP) in western Madagascar are among the most extensive remaining on the island.  The remaining dryland forests of the MANAP have been subjected to immense deforestation in recent years.  Although remote sensing studies indicate that the mangrove forest loss is considerably lower than the dryland forest loss, little is known about the mangroves’ degradation status.  Furthermore, detailed information on bird diversity and numbers is scattered, and previous surveys focused on northern parts of the MANAP, recently designated as the Wetlands of the Tsiribihina RAMSAR site.  This study aims to assess bird diversity and abundance, as well as the status of mangroves in the MANAP. We conducted a rapid survey using direct observations at three sites along the coastal regions of the MANAP from 24 Sep–2 Oct 2019.  We recorded 71 species of birds in the mangroves and coastal wetlands.  High numbers of individuals were counted for several species.  Numbers of the Madagascar Plover Charadrius thoracicus and the Madagascar Teal Anas bernieri fulfill criteria for important bird areas at single survey sites and the site is likely to be of importance for Madagascar Sacred Ibis Threskiornis bernieri; these three species are all globally threatened.  Mangrove degradation is still limited, but numerous threats to mangroves are present.  Our results highlight the importance of the mangroves of the MANAP for several endemic bird species in Madagascar.  We provide recommendations for conservation management and future research.

scholarly journals Vodne ptice in ujede Cerkniškega polja (južna Slovenija) v letih 2007 in 2008, s pregledom zanimivejših opazovanj do konca leta 2010 / Waterbirds and raptors of Cerknica polje (southern Slovenia) in 2007 and 2008, with an overview of interesting observations till the end of 2010

Acrocephalus ◽  
2012 ◽  
Vol 33 (152-153) ◽  
pp. 25-104 ◽  
Author(s):  
Dejan Bordjan
Keyword(s):  
Temporal Dynamics ◽  
Data Gathering ◽  
Bird Species ◽  
Breeding Population ◽  
Research Area ◽  
Phalacrocorax Carbo ◽  
Waterbird Species ◽  
Fulica Atra ◽  
The Status ◽  
Conservation Concern

Between the end of February 2007 and mid-February in 2008, 73 systematic surveys of waterbirds and raptors were carried out during 10-day periods at Cerknica polje (Southern Slovenia). The main objectives of our research were: to ascertain the abundance and temporal dynamics of the species occurring here, to specify their status, to make a comparison with the past period of systematic data gathering in the 1991-1992 period, to present estimates of the breeding, migrating and wintering populations, as well as to make, on these bases, a nature-conservancy evaluation of the area. Other ornithological data, acquired till the end of 2010, were gathered as well. Between the beginning of May and the beginning of September 2007, the water in the area virtually ran dry (it was retained only in the channels of the streams), while the surface itself was partially or fully icebound from mid-November 2007 till the beginning of February 2008. By the end of 2010, a total of 129 waterbird and raptor species were recorded at Cerknica polje, while in the 2007-2008 period 83 were registered. Dynamics of the species occurrence with more than nine observations made in the area is presented in a greater detail in the species overview. The breeding status was held by 27 bird species, while further seven were forage guests that bred in the vicinity of the study area. Most of the species (118) had the status of passage visitor, whereas those with the status of summer visitor (34) and winter visitor (40) were fewer. Among the recorded species, 34 were accidental and 21 rare visitors. There were 16 winter and seven summer residents, while year-round residents were six. In all 10-day periods of the research period, four species were recorded: Mallard Anas plathyrhynchos, Grey Heron Ardea cinerea, Buzzard Buteo buteo and Kestrel Falco tinnunculus. In more than 90% of 10-day periods, the Great Egret Ardea alba was recorded as well. In the 2007-2008 period, two species were eudominant (Mallard 27.2%, Buzzard 10.1%), whereas another two were dominant (Garganey Anas querquedula 7.4%, Coot Fulica atra 6.4%). Most individuals were registered at the end of March and in early April (up to 1,978 ind.), whereas the greatest numbers of species (48) were recorded in mid-April. Between May and August, the numbers of individuals and species were low owing to the dried up lake. The smallest area of occurrence was occupied by the Cormorant Phalacrocorax carbo and a group of ducks of the genera Aythya, Bucephala and Mergellus. Gulls, egrets, herons, waders, harriers Circus sp. and the Red-footed Kestrel Falco vespertinus occurred in the greater part of the research area. 10 breeders fulfilled the criteria of the species of the greatest conservation importance, two of which (Ferruginous Duck Aythya nyroca and Curlew Numenius arquata) are species of global conservation concern, whereas seven are of conservation concern on a European scale. Among non-breeders, 14 waterbird species and raptors occurred in significant numbers (> 0.1% biogeographical population), five of which occurred at least occasionally with more than 1% of their biographical population. Two species (Red-necked Grebe Podiceps grisegena and Snipe Gallinago gallinago) breed in Slovenia only at Cerknica polje, while further six species have here at least 40% of their Slovenian breeding population

scholarly journals Bird communities in two fragments of Cerrado in Itirapina, Brazil

2010 ◽  
Vol 70 (3) ◽  
pp. 537-550 ◽  
Author(s):  
M. Telles ◽  
MM. Dias
Keyword(s):  
Protected Area ◽  
Environmental Heterogeneity ◽  
New Records ◽  
Bird Species ◽  
Southeastern Brazil ◽  
Bird Diversity ◽  
Frugivorous Birds ◽  
Vegetation Heterogeneity ◽  
Bird Fauna ◽  
Eleven Species

The Cerrado domain is a mosaic of vegetation types at the local scale, and this environmental heterogeneity leads to high regional bird diversity. Therefore, we aimed to survey quantitative and qualitatively the bird fauna of two fragments of Cerrado and to compare them with an adjacent protected area (Estação Ecológica de Itirapina), in order to assess the heterogeneity of bird diversity in the region. The present study was conducted during 12 months from October 2006 to September 2007 in the municipality of Itirapina, Southeastern Brazil. Altogether we recorded 210 bird species. Fifty-six of them had never been detected in Estação Ecológica de Itirapina, and eleven species are new records for the whole Itirapina region. The list also includes six species that are endangered in Sao Paulo State and five endemic species of the Cerrado domain. Most species were recorded in less than 50% of the visits and exhibited low relative abundance. Primarily insectivorous species were the most common, followed by omnivores. Frugivorous birds were poorly represented. Carnivores were more abundant than usually observed in fragments. The similarity among fragments was higher than between fragments and the protected area. Considering the vegetation heterogeneity in the Cerrado domain, our results reinforce the importance of conserving fragments in order to sample this diversity.

Seasonal Diversity and Population Status of Waterbirds in Phewa Lake, Pokhara, Nepal

1970 ◽  
pp. 3-7 ◽  
Author(s):  
Bikash Giri ◽  
Mukesh Kumar Chalise
Keyword(s):  
Bird Species ◽  
Bird Diversity ◽  
Population Status ◽  
Number Of Species ◽  
Waterbird Species ◽  
Periodic Monitoring ◽  
Different Seasons ◽  
Seasonal Diversity ◽  
Lake Systems ◽  
Number Of Individuals

The study (2007-08) was carried out in Phewa Lake which is one of the largest lake systems in Nepal to evaluate seasonal diversity and population status of waterbirds. A total of 39 waterbird species belonging to 17 families of 5 orders was recorded. The highest number of species (31 species) was found in December and January. Winter was the most diverged season in terms of number of species (35 species) and summer and autumn by 17 species. January had the highest (1584) and September the lowest (345) waterbird population. Out of 39 species, 15 species were winter visitors, 10 resident, and 4 rare winter visitor. The highest diversity ( H =2.6228) was found in February and lowest ( H =1.2014) in June. The value of evenness (Jacob's coefficient) was higher (0.8485) in February and lowest (0.4555) in June. During June, 69.92% (616 individuals) of the total population (881) constituted only Cattle Egret. The dominancy was found highest (C=0.5058) in June and lowest (C=0.1020) in February. The bird communities of summer and autumn were more similar (S=0.7059) than the summer and winter (S=0.5). The fluctuation in number of individuals of bird species was found unrelated to seasons (months) (F=1.71, df = 8, 342, P ≤ 0.05). The species richness was found different in different seasons (months) (Χ2=29.34, df = 8, P ≤ 0.05). Detail study of bird diversity and population status with periodic monitoring in Phewa Lake is recommended for their conservation and management as a whole. Key Words: Phewa lake, wetland, waterbirds, diversity, population  DOI: 10.3126/jowe.v1i1.1568 Journal of Wetlands Ecology Vol.1(1/2) 2008, p.3-7

scholarly journals Bird diversity along riverine areas in the Bhagirathi Valley, Uttarakhand, India

2019 ◽  
Vol 7 ◽  
Author(s):  
Ankita Sinha ◽  
Hima Hariharan ◽  
Bhupendra Adhikari ◽  
Ramesh Krishnamurthy
Keyword(s):  
Large Scale ◽  
Bird Species ◽  
Western Himalaya ◽  
Habitat Associations ◽  
Bird Diversity ◽  
Future Research ◽  
Community Patterns ◽  
Climatic Fluctuations ◽  
River Ganges ◽  
Bhagirathi River

Natural riverine areas mark ecotonal habitats harbouring a characteristically diverse faunal assemblage, especially birds that also use these habitats as pathways crucial for their movement. Increasingly, riverine systems are subjected to large-scale habitat alterations due to climatic fluctuations and anthropogenic changes. Therefore, it is important to understand broad-scale community patterns for conservation planning and prioritisation for these ecotone habitats. The Bhagirathi river is one of the major headwaters of the river Ganges; despite its rich and diverse fauna, little is known about the bird species that inhabit this montane region. This study presents an extensive list of 281 bird species from 59 families, their seasonal distribution and habitat associations as recorded from field surveys along the riverine areas between April 2013 and May 2018. The present communication simultaneously discusses a few noteworthy sightings for the region and provides a baseline for future research on the distribution of birds in the Western Himalaya.

scholarly journals Big Bird Plots: Benchmarking Neotropical Bird Communities to Address Questions in Ecology and Conservation in an Era of Rapid Change

2021 ◽  
Vol 9 ◽  
Author(s):  
W. Douglas Robinson ◽  
Dan Errichetti ◽  
Henry S. Pollock ◽  
Ari Martinez ◽  
Philip C Stouffer ◽  
...  
Keyword(s):  
Community Structure ◽  
Community Dynamics ◽  
Rapid Change ◽  
Bird Species ◽  
Bird Communities ◽  
Lessons Learned ◽  
Bird Diversity ◽  
Future Research ◽  
Large Network ◽  
Bird Abundance

Extensive networks of large plots have the potential to transform knowledge of avian community dynamics through time and across geographical space. In the Neotropics, the global hotspot of avian diversity, only six 100-ha plots, all located in lowland forests of Amazonia, the Guianan shield and Panama, have been inventoried sufficiently. We review the most important lessons learned about Neotropical forest bird communities from those big bird plots and explore opportunities for creating a more extensive network of additional plots to address questions in ecology and conservation, following the model of the existing ForestGEO network of tree plots. Scholarly impact of the big bird plot papers has been extensive, with the papers accumulating nearly 1,500 citations, particularly on topics of tropical ecology, avian conservation, and community organization. Comparisons of results from the plot surveys show no single methodological scheme works effectively for surveying abundances of all bird species at all sites; multiple approaches have been utilized and must be employed in the future. On the existing plots, abundance patterns varied substantially between the South American plots and the Central American one, suggesting different community structuring mechanisms are at work and that additional sampling across geographic space is needed. Total bird abundance in Panama, dominated by small insectivores, was double that of Amazonia and the Guianan plateau, which were dominated by large granivores and frugivores. The most common species in Panama were three times more abundant than those in Amazonia, whereas overall richness was 1.5 times greater in Amazonia. Despite these differences in community structure, other basic information, including uncertainty in population density estimates, has yet to be quantified. Results from existing plots may inform drivers of differences in community structure and create baselines for detection of long-term regional changes in bird abundances, but supplementation of the small number of plots is needed to increase generalizability of results and reveal the texture of geographic variation. We propose fruitful avenues of future research based on our current synthesis of the big bird plots. Collaborating with the large network of ForestGEO tree plots could be one approach to improve understanding of linkages between plant and bird diversity. Careful quantification of bird survey effort, recording of exact locations of survey routes or stations, and archiving detailed metadata will greatly enhance the value of benchmark data for future repeat surveys of the existing plots and initial surveys of newly established plots.

scholarly journals The Uluguru Mountains of eastern Tanzania: the effect of forest loss on biodiversity

Oryx ◽  
2002 ◽  
Vol 36 (2) ◽  
pp. 140-152 ◽  
Author(s):  
Neil Burgess ◽  
Nike Doggart ◽  
Jon C. Lovett
Keyword(s):  
Bird Species ◽  
Forest Loss ◽  
Vertebrate Species ◽  
Altitude Range ◽  
Endemic Plant ◽  
Tropical Africa ◽  
Forest Reserves ◽  
Forest Sites ◽  
Uluguru Mountains ◽  
The Status

The Uluguru Mountains in eastern Tanzania contain at least 16 endemic vertebrate and 135 endemic plant taxa, with hundreds of more taxa shared only with forests in eastern Tanzania and Kenya. This degree of endemism is exceptional in tropical Africa, and the Uluguru Mountains are one of the 10 most important tropical forest sites for conservation on the continent. Surveys carried out during 1999–2001 updated information on the status of forests and biodiversity across the Uluguru Mountains. Forest area has declined from c. 300 km2 in 1955 to 230 km2 in 2001. Forest loss has been greatest over altitudes of 600–1,600 m, and concentrated in submontane forest. During the recent surveys most of the endemic and near-endemic vertebrate species known from the Uluguru Mountains were re-recorded, but three endemic snake species and two near-endemic bird species were not found. These species were previously known from the elevations where deforestation has been greatest. More than 50 plant species are also known only from the altitude range that has been heavily deforested. The primary cause of forest loss has been clearance for new farmland. The forest that does remain is largely confined to Catchment Forest Reserves managed for water by the Tanzanian Government. Without these reserves the loss of forest, and hence the loss of biodiversity, in the Uluguru Mountains would most likely have been much greater.

scholarly journals Endemic birds and protected area development on the Da Lat Plateau, Vietnam

1995 ◽  
Vol 5 (4) ◽  
pp. 491-523 ◽  
Author(s):  
Jonathan C. Eames
Keyword(s):  
Protected Area ◽  
Shifting Cultivation ◽  
Urban Expansion ◽  
Bird Species ◽  
Evergreen Forest ◽  
Bird Diversity ◽  
Forestry Practices ◽  
Pinus Kesiya ◽  
International Importance ◽  
Increasing Demand

SummaryA study of Thuong Da Nhim and Chu Yang Sin Nature Reserves - identified as priority sites because located within the Da Lat Plateau Endemic Bird Area (EBA) in Vietnam -was conducted between 10 November 1993 and 1 February 1994. A total of 212 bird species, of which 11 are considered globally threatened (including the rediscovered Grey-crowned Crocias Crocias langbianis), were recorded in the reserves. Eight restricted-range species were recorded, including the four species confined to the EBA. These two reserves are of international importance because they jointly support bird communities representative of the EBA. They are also of great economic importance, being within watersheds. Their extent is believed adequate but it is not known if they encompass all representative habitats over the full altitudinal range. Local tribal communities traditionally practise shifting cultivation, which has greatly modified the extent, composition and quality of evergreen forest and is causing its increasing fragmentation. Deliberate fires are preventing the regeneration of evergreen forest and promoting the growth of a climax dominated by Pinus kesiya. This reduces bird diversity and compromises the future of the endemic bird taxa. Other threats include recent logging activities, human immigration, the urban expansion of Da Lat and consequent increasing demand for charcoal and fuelwood. The Ministry of Agriculture and Rural Development should urgently proceed with the production of management plans for these areas, aiming to create a single, enlarged protected area. The primary land-use management strategy should be to conserve remaining areas of evergreen forest and to increase their extent by boundary realignment, elimination of shifting cultivation and fire, and the introduction of sympathetic forestry practices.

Moderating Role of Gender in the Relationship between Cognitive Errors and Anxiety among Adolescents

2020 ◽  
Vol 4 (1) ◽  
pp. 86-102
Author(s):  
Tasnim Rehna ◽  
Rubina Hanif ◽  
Muhammad Aqeel
Keyword(s):  
Mental Health Problems ◽  
Adolescent Psychopathology ◽  
Future Research ◽  
Cognitive Errors ◽  
Adolescent Anxiety ◽  
Study Results ◽  
The Status ◽  
Manifest Anxiety ◽  
The Relationship

Background: Widespread social paradigms on which the status variances are grounded in any society, gender plays pivotal role in manifestation of mental health problems (Rutter, 2007). A hefty volume of research has addressed the issue in adults nonetheless, little is vividly known about the role of gender in adolescent psychopathology. Sample: A sample of 240 adolescents (125 boys, 115 girls) aging 12-18 years was amassed from various secondary schools of Islamabad with the approval of the Federal Directorate of Education (FDE), relevant authorities of the schools and the adolescents themselves. Instruments: Taylor Manifest Anxiety Scale (Taylor & Spence, 1953) and Children’s Negative Cognitive Errors Questionnaire (CNCEQ) by Leitenberg et al., (1986) were applied in present study. Results: Multiple regression analysis revealed that cognitive errors jointly accounted for 78% of variance in predicting anxiety among adolescents. Findings also exhibited that gender significantly moderated the relationship between cognitive errors and adolescent anxiety. Implications of the findings are discoursed for future research and clinical practice.

Survey on Bird Species and Analysis on Bird Diversity in the Central Kunlun Mountains in the Early Winter

2010 ◽  
Vol 27 (2) ◽  
pp. 230-235
Author(s):  
Ming MA ◽  
Bao-wen HU ◽  
Yu MEI ◽  
Thomas McCarthy
Keyword(s):  
Bird Species ◽  
Bird Diversity ◽  
Early Winter ◽  
Kunlun Mountains

scholarly journals Mapping domain characteristics influencing Analytics initiatives: The example of Supply Chain Analytics

2020 ◽  
Vol 13 (1) ◽  
pp. 56
Author(s):  
Tino Herden
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Success Factors ◽  
Research Collaboration ◽  
Future Research ◽  
Structured Interviews ◽  
Chain Management ◽  
Domain Specific ◽  
The Status ◽  
The Impact

Purpose: Analytics research is increasingly divided by the domains Analytics is applied to. Literature offers little understanding whether aspects such as success factors, barriers and management of Analytics must be investigated domain-specific, while the execution of Analytics initiatives is similar across domains and similar issues occur. This article investigates characteristics of the execution of Analytics initiatives that are distinct in domains and can guide future research collaboration and focus. The research was conducted on the example of Logistics and Supply Chain Management and the respective domain-specific Analytics subfield of Supply Chain Analytics. The field of Logistics and Supply Chain Management has been recognized as early adopter of Analytics but has retracted to a midfield position comparing different domains.Design/methodology/approach: This research uses Grounded Theory based on 12 semi-structured Interviews creating a map of domain characteristics based of the paradigm scheme of Strauss and Corbin.Findings: A total of 34 characteristics of Analytics initiatives that distinguish domains in the execution of initiatives were identified, which are mapped and explained. As a blueprint for further research, the domain-specifics of Logistics and Supply Chain Management are presented and discussed.Originality/value: The results of this research stimulates cross domain research on Analytics issues and prompt research on the identified characteristics with broader understanding of the impact on Analytics initiatives. The also describe the status-quo of Analytics. Further, results help managers control the environment of initiatives and design more successful initiatives.

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