Hound, Bay Horse, and Turtle-Dove: Obscurity and Authority in Thoreaus Walden

2006 ◽  
Vol 60 (1) ◽  
pp. 115
Author(s):  
Jeanne I. Lakatos ◽  
Henrik Otterberg
Keyword(s):  
Turtle Dove

Dusky Turtle-Dove (Streptopelia lugens)

2020 ◽  
Author(s):  
Luis F. Baptista ◽  
Pepper W. Trail ◽  
H.M. Horblit ◽  
Peter F. D. Boesman
Keyword(s):  
Turtle Dove

scholarly journals Effects of seed-rich habitat provision on territory density, home range and breeding performance of European Turtle Doves Streptopelia turtur

2020 ◽  
pp. 1-20
Author(s):  
JENNY C. DUNN ◽  
ANTONY J. MORRIS ◽  
PHILIP V. GRICE ◽  
WILL J. PEACH
Keyword(s):  
Reproductive Output ◽  
Food Limitation ◽  
Home Ranges ◽  
Breeding Performance ◽  
Ranging Behaviour ◽  
Local Abundance ◽  
Turtle Dove ◽  
Human Habitation ◽  
Territory Density ◽  
Streptopelia Turtur

Summary Conservation measures providing food-rich habitats through agri-environment schemes (AES) have the potential to affect the demography and local abundance of species limited by food availability. The European Turtle Dove Streptopelia turtur is one of Europe’s fastest declining birds, with breeding season dietary changes coincident with a reduction in reproductive output suggesting food limitation during breeding. In this study we provided seed-rich habitats at six intervention sites over a 4-year period and tested for impacts of the intervention on breeding success, ranging behaviour and the local abundance of territorial turtle doves. Nesting success and chick biometrics were unrelated to the local availability of seed-rich habitat or to the proximity of intervention plots. Nestling weight was higher close to human habitation consistent with an influence of anthropogenic supplementary food provision. Small home ranges were associated with a high proportion of non-farmed habitats, while large home ranges were more likely to contain seed-rich habitat suggesting that breeding doves were willing to travel further to utilize such habitat where available. Extensively managed grassland and intervention plot fields were selected by foraging turtle doves. A slower temporal decline in the abundance of breeding males on intervention sites probably reflects enhanced habitat suitability during territory settlement. Refining techniques to deliver sources of sown, natural, and supplementary seed that are plentiful, accessible, and parasite-free is likely to be crucial for the conservation of turtle doves.

THE FEEDING HABITS OF THE WOODPIGEON COLUMBA PALUMBUS, STOCK DOVE C. OENAS AND TURTLE DOVE STREPTOPELIA TURTUR

Ibis ◽  
2008 ◽  
Vol 106 (2) ◽  
pp. 174-188 ◽  
Author(s):  
R. K. Murton ◽  
N. J. Westwood ◽  
A. J. Isaacson
Keyword(s):  
Feeding Habits ◽  
Turtle Dove ◽  
Streptopelia Turtur

scholarly journals Effect of Farming and Rainfall on the Species Diversity, Population Density and Community Structure of Birds Breeding in the Kalahari Woodland, NE Namibia

Zoodiversity ◽  
2021 ◽  
Vol 55 (6) ◽  
pp. 451-458
Author(s):  
G. Kopij
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Bird Species ◽  
Diversity Indices ◽  
Annual Rainfall ◽  
Feeding Guilds ◽  
Line Transect ◽  
Population Densities ◽  
Feeding Guild ◽  
Turtle Dove

The line transect method has been employed to assess species diversity, population densities and community structure of birds breeding in a mosaic of Kalahari Woodland and farmland, NE Namibia. The transect, 4.5 km long, was surveyed in 2014 and 2015. The total annual rainfall in 2014 was much higher than in 2015 (427 mm vs. 262 mm). In total, 40 breeding species in 2014, and 46 in 2015 were recorded. Six species were dominant in 2014 (Cape Turtle Dove, Laughing Dove, Emerald-spotted Dove, Blue Waxbill, and White-browed Scrub Robin) and only three species in 2015 (Cape Turtle Dove and Blue Waxbill and Yellow-fronted Canary). Although the cumulative dominance in 2014 almost doubled that in 2015, the Community Index in both years was almost identical. Also diversity indices and evenness index were very similar in both years compared. Granivorous birds were the most numerous feeding guild. Their contribution was similar in 2014 and 2015 (46.7 % vs. 43.4 %). Two other feeding guilds, insectivores and frugivores, comprised together more than 50 % in both years. The number of bird species and species diversity were not influenced by the differential rainfall. However, contrary to expectations, population densities of most bird species (at least the more numerous ones) were higher in the year with lower than in the year with higher rainfall. The number of species and species diversity was similar in the farmland and in neighbouring Kalahari Woodland in a pristine stage. However, population densities of most species were lower in the farmland than in the pristine woodland.

scholarly journals Isolation and characterization of 89 SNP markers in the oriental turtle dove, Streptopelia orientalis

2019 ◽  
Vol 12 (2) ◽  
pp. 165-171 ◽  
Author(s):  
Jiangyong Qu ◽  
Ruxiao Wang ◽  
Shanshan Wang ◽  
Xiaoyu Guo ◽  
Yutong Cui ◽  
...  
Keyword(s):  
Snp Markers ◽  
Isolation And Characterization ◽  
Turtle Dove ◽  
Streptopelia Orientalis

scholarly journals Avian Diversity Along An Altitudinal Gradient In Highveld/Drakensberg Grasslands

2015 ◽  
Vol 49 (4) ◽  
pp. 351-360
Author(s):  
G. Kopij
Keyword(s):  
High Frequency ◽  
Diversity Index ◽  
Line Transect ◽  
Physical Factors ◽  
Resident Species ◽  
Dominant Group ◽  
Breeding Bird ◽  
Turtle Dove ◽  
Avian Assemblages ◽  
Group Species

Abstract Temperature and rainfall related to altitudinal gradients influence ecological and evolutionary responses of organisms to physical factors. In this study, the line transect method was used during the years 1996–2001 to compare resident (potentially breeding) bird communities in three altitudinal divisions in Highveld/Drakensberg grasslands in Lesotho: lowlands (< 1700 m a. s. l.), foothills (1700–2200 m a. s. l.) and highlands (> 2200 m a. s. l.). In total, 105 resident species were recorded. The total number of species recorded in lowlands was higher than that in highlands and foothills, but this difference was not statistically significant. The highland and foothill did not differ in numbers of species. A group of five species dominated at all three sites, and the proportion of dominant species in relation to the whole assemblage was very similar. The composition of the dominant group (species with more than 5 % of pairs) and the group of species most often encountered (in more than 80 % of transects) was, however, different. Only two species, Cape Canary Serinuscanicollis and Karoo Prinia Priniamaculosa were dominant in all three study areas, and just one species, the Cape Bunting Emberizacapensis, was dominant in two plots. Similarly, only two species, the Cape Turtle-Dove Streptopelia capicola and Cape Canary had a high frequency of occurrence in all three study areas, and two otherspecies, theKaroo Prinia and Cape Bunting — in two study areas. Simpson’s Diversity Index was strikingly the same (S = 0.96) for all three avian assemblages (lowland, foothill and highland) investigated. However, proportions of breeding pairs of some congeneric species were found to change with the altitude. The granivores were more common (44–45 %) in the foothills and highlands than in lowlands (36%), while insectivores were more common in the highlands (50 %) than in foothills and lowlands (36–37 %). In general, avifauna is relatively diverse and unique in the Highveld/Drakensberg grasslands. Results presented here provide data for further investigation of the effect of the supposed climate warming on the diversity and structure of avian communities.

Distribution of the European turtle dove (Streptopelia turtur) at the edge of the South-Western Palaearctic: transboundary differences and conservation prospects

2020 ◽  
Vol 66 (5) ◽  
Author(s):  
José Luis Tellería ◽  
Roberto Carbonell ◽  
Guillermo Fandos ◽  
Elena Tena ◽  
Alejandro Onrubia ◽  
...  
Keyword(s):  
The South ◽  
Turtle Dove ◽  
Western Palaearctic ◽  
Streptopelia Turtur

Detection of palaeo-oil columns in the offshore northern Perth Basin: extension of the effective Permo-Triassic charge system

2011 ◽  
Vol 51 (1) ◽  
pp. 377 ◽  
Author(s):  
Richard Kempton ◽  
Se Gong ◽  
John Kennard ◽  
Herbert Volk ◽  
David Mills ◽  
...  
Keyword(s):  
Fluid Inclusion ◽  
Geochemical Data ◽  
Terrestrial Organic Matter ◽  
Oil Accumulation ◽  
Charge System ◽  
High Incidence ◽  
Turtle Dove ◽  
Wax Content ◽  
Tricyclic Terpanes ◽  
Hydrocarbon Charge

A widespread charge system for oil accumulation in the offshore northern Perth Basin, Western Australia, is revealed by specialised fluid inclusion technologies. Palaeo-oil columns are detected in about three of four exploration wells, including those at the Cliff Head, Dunsborough, Frankland and Perseverance fields, and in dry wells at Flying Foam–1, Hadda–1, Houtman–1, Leander Reef–1, Lilac–1, Livet–1, Mentelle–1 and Morangie–1. A high incidence of palaeo-oil charge into Permian reservoirs below the Kockatea Shale confirms that the conventional oil shows are, in part, residues of palaeo-oil. Oil migration is suggested at Vindara–1 and Leander Reef–1 and is below detection limits in Batavia–1, Charon–1, Fiddich–1 Geelvink–1A, Gun Island–1 and South Turtle Dove–1B, Twin Lions–1 and Wittecarra–1. New geochemical data from fluid inclusion oil at Hadda–1 shows evidence for a contribution from the Hovea Member of the Kockatea Shale, including: high wax content; low pristane/phytane ratio; high abundance of extended tricyclic terpanes; and, the highly diagnostic C33 n-alkylcyclohexane biomarker. This key component of the petroleum system acted as both source and seal, and extends further offshore than previously realised. Possible co-sourcing from terrestrial organic matter is indicated by high abundances of C29 steranes and diasteranes, C19 tricyclic, and C24 tetracyclic terpanes, which may be sourced from Permian rocks. The high incidence of palaeo-oil and residual columns suggests that trap integrity is likely to be an important preservation risk, with elements of gas displacement. Screening of prospects for structural and hydrocarbon charge characteristics, which are favourable for retention of oil, is key in future exploration of the offshore northern Perth Basin.

Indian Turtle-Dove

1946 ◽  
Vol 46 (3) ◽  
pp. 234-235
Author(s):  
C. C. Lawrence
Keyword(s):  
Turtle Dove
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