Factors Influencing Bird Species Numbers in Small Woods in South-East England

1996 ◽  
Vol 33 (2) ◽  
pp. 249 ◽  
Author(s):  
Paul E. Bellamy ◽  
Shelley A. Hinsley ◽  
Ian Newton
Keyword(s):  
Bird Species ◽  
Species Numbers ◽  
Factors Influencing ◽  
South East England

The Regulations of Bird Species' Numbers on Islands

Ecology ◽  
1977 ◽  
Vol 58 (5) ◽  
pp. 1195-1195
Author(s):  
David W. Johnston
Keyword(s):  
Bird Species ◽  
Species Numbers

Centaurea in South-West Asia: patterns of distribution and diversity

1986 ◽  
Vol 89 ◽  
pp. 11-21 ◽  
Author(s):  
G. Wagenitz
Keyword(s):  
Morphological Variation ◽  
Species Numbers ◽  
Patterns Of Distribution ◽  
Factors Influencing ◽  
South West ◽  
Mediterranean Countries ◽  
Centres Of Diversity ◽  
Narrow Endemics

SynopsisIn SW Asia 260 species of Centaurea in 38 sections are recognised. Species numbers are highest in S and E Turkey and adjacent Iran and Iraq. East Iran and Afghanistan are poor in species. The number of sections is largest in NE Turkey (and adjacent Transcaucasia). Two hundred and one species are restricted to the area under study; the greatest number of narrow endemics is found in S and E Turkey. The subgenera and sections show quite different patterns of distribution and centres of diversity. The data presented point to E Anatolia and adjacent areas as the foremost centre of evolution for the genus and make probable a relatively recent speciation; an important secondary centre is S Turkey (and of course several other Mediterranean countries too). Some notes are added on the morphological variation in the genus and possible factors influencing its evolution.

Implementing policy and good practice in services for people with learning disabilities: factors influencing commissioning and service provision

2017 ◽  
Vol 22 (1) ◽  
pp. 28-37 ◽  
Author(s):  
James Colman Kerrigan ◽  
Caroline Hopper
Keyword(s):  
Good Practice ◽  
National Policy ◽  
Structured Interviews ◽  
Care Programme ◽  
Content Type ◽  
Subsequent Investigation ◽  
Factors Influencing ◽  
General Relevance ◽  
Neighbouring Area ◽  
South East England

Purpose The purpose of this paper is to explore the implementation of learning disability (LD) policy among LD commissioners and managers in Kent (South East England) and a neighbouring area. Design/methodology/approach Participants’ views were elicited by semi-structured interviews focussed on two key national policy documents: Valuing People (DH, 2001) and the Mansell report (DH, 1993; 2007a). Findings Valuing People had a significant impact at the time of publication but initial enthusiasm and impetus faded over time. The Mansell report was thought to have had little impact on local services. Good progress was reported with respect to the development of more integrated services. Limited progress was identified with respect to the development of local mental health and challenging behaviour services. Factors influencing policy implementation were identified. Originality/value The similarity of findings to those of McGill et al. (2010) suggest their more general relevance. In the light of the subsequent investigation into Winterbourne View, common themes from both studies are considered in relation to the current Transforming Care programme in England.

The use of pasture trees by birds in a tropical montane landscape in Monteverde, Costa Rica

2013 ◽  
Vol 29 (5) ◽  
pp. 459-462 ◽  
Author(s):  
Kimberly S. Sheldon ◽  
Nalini M. Nadkarni
Keyword(s):  
Costa Rica ◽  
Agricultural Land ◽  
Bird Species ◽  
Forest Edge ◽  
Agricultural Landscapes ◽  
Tree Size ◽  
Fragmented Landscapes ◽  
Factors Influencing ◽  
Degree Of Isolation ◽  
Epiphyte Load

Abstract:Conversion of forests to agricultural land may require many bird species to use resources in fragmented landscapes in order to persist. Pasture trees can make agricultural landscapes more hospitable for birds, but we do not know what factors promote bird visitation to pasture trees. Bird use of 26 focal trees of a common pasture species, Sapium glandulosum (Euphorbiaceae), was examined in three pastures in a montane landscape in Costa Rica to understand factors influencing bird visitation. Bird visits were analysed in relation to pasture tree size, distance from forest edge, degree of isolation and epiphyte load. Foraging resources (epiphyte or tree substrate) were also measured. From May–July 2012, 52 bird species from 20 families were recorded from 926 unique visits. Bird visitation was best explained by tree size, degree of isolation and epiphyte load such that larger, more isolated trees with higher epiphyte loads attracted more birds. Birds preferred food resources from focal trees (51% of visits) rather than their epiphytes (5% of visits). The results corroborate previous findings that mature pasture trees, even when isolated, may contribute more to species persistence than smaller trees.

scholarly journals Common blackbirds Turdus merula use anthropogenic structures as nesting sites in an urbanized landscape

2015 ◽  
Vol 61 (3) ◽  
pp. 435-443 ◽  
Author(s):  
Yanping Wang ◽  
Qin Huang ◽  
Sisi Lan ◽  
Qin Zhang ◽  
Shuihua Chen
Keyword(s):  
Bird Species ◽  
Behavioral Flexibility ◽  
Urban Environments ◽  
Turdus Merula ◽  
Nest Sites ◽  
Factors Influencing ◽  
Nesting Sites ◽  
The Common ◽  
Anthropogenic Structures ◽  
Common Blackbird

Abstract The common blackbird Turdus merula is one of the most highly urbanized bird species. However, to date, the use of anthropogenic structures as nesting sites in the common blackbird is rarely documented, and the factors influencing its use of the anthropogenic structures as nesting sites remain unclear. In this study, we systematically quantified and determined the factors influencing the use of anthropogenic structures as nesting sites in common blackbirds in a highly urbanized city of Hangzhou, China. We searched for nests of common blackbirds during four breeding seasons from 2010 to 2013. Among the 60 nests found, 34 nests were in anthropogenic structures such as wall ledges, air condition mounts, window canopies, cable poles, guardrails, eaves, balcony frames, flowerpots and flower shelves on balconies. We found that the available anthropogenic nest sites and the available nesting trees were main factors determining the use of anthropogenic structures as nesting sites in common blackbirds. In urban environments, the amount of available anthropogenic nesting sites increased significantly, whereas the number of natural nesting sites reduced greatly. Our results suggest that common blackbirds can adjust their nest sites in response to urbanization and such nesting behavior shifts may aid them to colonize urban environments. From a management viewpoint, our results indicate that behavioral flexibility should be taken into account for effective urban wildlife management and conservation.

scholarly journals Factors influencing distribution and habitat utilisation of Leptoptilos javanicus in and around Barandabhar Corridor Forest, Chitwan, Nepal

2022 ◽  
Vol 7 (1) ◽  
Author(s):  
Yureshiya Wagle ◽  
◽  
Bishnu P. Bhattarai ◽  
Jagan N. Adhikari ◽  
◽  
...  
Keyword(s):  
Human Disturbance ◽  
Protected Area ◽  
Bird Species ◽  
Seasonal Distribution ◽  
Habitat Types ◽  
The Road ◽  
Factors Influencing ◽  
The Village ◽  
New Location ◽  
Road Distance

The globally Vulnerable wetland-dependent bird species Leptoptilos javanicus was once thought to avoid farmlands, but recent studies in lowland Nepal showed that the species uses farmlands extensively for foraging and breeding. Identifying whether this preference of L. javanicus to these habitats is common throughout Nepal is essential to understanding the conservation needs of the species. This study aimed to explore the seasonal distribution and habitat utilisation by L. javanicus in and around the Barandabhar Corridor Forest by using 220 randomly selected squares within a 500 × 500 m2 grid. We visited centroids of each selected square to collect data on L. javanicus distribution, habitat types, and probable causes of disturbance in two seasons (rainy: August – September 2019 and winter: December – January 2019–2020). A total of 64 observations of L. javanicus (n = 29 in winter, n = 35 in rainy) were made. Leptoptilos javanicus were seen in more squares outside the Protected Area (65.2%) during the rainy season. Variables that negatively influenced L. javanicus sightings were distance to the road (few individuals seen close to the road), distance to the village (few individuals seen close to settlement), and areas under human disturbance (only few individuals seen in areas with more livestock and people) during both seasons. The farmlands around the Barandabhar Corridor Forest hosted many individuals of L. javanicus and are a new location in lowland Nepal with a resident population of this species. Past assumptions regarding L. javanicus conservation require revision, and including a focus on farmlands is an important requirement in Nepal's conservation planning.

Environmental factors influencing bird species diversity in Kenya

2001 ◽  
Vol 39 (3) ◽  
pp. 295-302 ◽  
Author(s):  
Boniface O. Oindo ◽  
Rolf A. De By ◽  
Andrew K. Skidmore
Keyword(s):  
Species Diversity ◽  
Environmental Factors ◽  
Bird Species ◽  
Factors Influencing ◽  
Bird Species Diversity

Factors influencing the fat load variation in three wintering bird species under stable food access conditions

2015 ◽  
Vol 33 (3) ◽  
pp. 205-211 ◽  
Author(s):  
Artur Goławski ◽  
Michał Polakowski ◽  
Piotr Filimowski ◽  
Katarzyna Stępniewska ◽  
Krzysztof Stępniewski ◽  
...  
Keyword(s):  
Food Access ◽  
Bird Species ◽  
Load Variation ◽  
Factors Influencing
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