17 research outputs found
All-particle cosmic ray energy spectrum measured with 26 IceTop stations
We report on a measurement of the cosmic ray energy spectrum with the IceTop
air shower array, the surface component of the IceCube Neutrino Observatory at
the South Pole. The data used in this analysis were taken between June and
October, 2007, with 26 surface stations operational at that time, corresponding
to about one third of the final array. The fiducial area used in this analysis
was 0.122 km^2. The analysis investigated the energy spectrum from 1 to 100 PeV
measured for three different zenith angle ranges between 0{\deg} and 46{\deg}.
Because of the isotropy of cosmic rays in this energy range the spectra from
all zenith angle intervals have to agree. The cosmic-ray energy spectrum was
determined under different assumptions on the primary mass composition. Good
agreement of spectra in the three zenith angle ranges was found for the
assumption of pure proton and a simple two-component model. For zenith angles
{\theta} < 30{\deg}, where the mass dependence is smallest, the knee in the
cosmic ray energy spectrum was observed between 3.5 and 4.32 PeV, depending on
composition assumption. Spectral indices above the knee range from -3.08 to
-3.11 depending on primary mass composition assumption. Moreover, an indication
of a flattening of the spectrum above 22 PeV were observed.Comment: 38 pages, 17 figure
Shear fatigue testing and life prediction of fibre composites Interim report
7.50Available from British Library Document Supply Centre- DSC:3310.76(CIT-CAR--8519) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Conservation Assessments: Hesperiidae; Lycaenidae: Alaena - Capys
Issue consists of one article divided into downloadable PDFs.
This section contains the conservation assessments and Red Listings (all global) of the taxa assessed during the Southern African Lepidoptera Conservation Assessment (SALCA) project, ordered alphabetically by family and then by genus, species and subspecies. Details of the methods used can be found in the main article, with each assessment set out as follows:
Taxon scientific name followed by the describer of the taxon and the date.
English and Afrikaans common names.
Name of the assessor/ taxon author.
Red Listing with relevant categories and criteria, as per the IUCN Red Listing protocol (IUCN, 2017).
For those Least Concern taxa which are rare, their rarity category is also given.
Also indicated are those taxa endemic to the South Africa.
Taxon images are arranged with males above and females below (upper side and underside). Specimen label data and photo credits are tabulated on pages 155–160.
Seasonality table: This table shows the months of occurrence of the taxon, starting August and ending July. Each month is divided into quarters. Quarters for which there are Accepted records are highlighted in grey.
Distribution map: The map’s extent is for South Africa. Data points are displayed for Accepted and Locally Extinct records. The following key is used for each data point:
Red List category
Symbol
EX (also if a taxon is locally extinct)
Black
CR‒PE
Dark purple
CR
Red
EN
Orange
VU
Yellow
NT
Mustard
DD
Lilac
LC (rare categories)
Blue
LC
Green
Type locality: As originally stated by the describer.
Taxonomy: Highlighting any relevant taxonomic issues.
Distribution: A description of the taxon’s distribution.
Habitat: A description of the taxon’s habitat.
Vegetation types: The vegetation types where the taxon is found, based on the 2018 vegetation map (SANBI, 2018), for records flagged as both Accepted and Locally Extinct. For those sites where the taxon is locally extinct, the vegetation types are given in parentheses.
Assessment rationale: The assessment rationale provides information which justifies the Red Listing and related categories and criteria.
Change in status from the Southern African Butterfly Conservation Assessment (SABCA): For those taxa where the Red Listing changed from the previous SABCA assessment of 2012 (Mecenero et al., 2013), an evaluation is given of whether or not the change in status is genuine or non-genuine.
Threats: A description of any threats relevant to the taxon.
Conservation measures and research required: Any conservation measures or research required are mentioned here, where relevant.
Relevant literature: Taxon-specific references published since SABCA are listed in this field, where applicable. The key references listed below were perused for all assessments.
An example of citing a specific conservation assessment:
“Woodhall, S.E. 2020. Abantis bicolor. pp. 34–35 In: Mecenero et al. 2020. Outcomes of the Southern African Lepidoptera Conservation Assessment (SALCA). Metamorphosis 31(4): 1–160”.
Abbreviations:
AOO: Area of occupancy
CR: Critically Endangered
CR–PE: Critically Endangered – Possibly Extinct
DD: Data Deficient
EN: Endangered
EOO: Extent of occurrence
EX: Extinct
LC: Least Concern
NT: Near Threatened
VU: Vulnerable
RELEVANT LITERATURE
The relevant literature listed below applies to all the conservation assessments. Literature applying only to specific taxa is given after each conservation assessment.
HENNING, G.A., TERBLANCHE, R.F. & BALL, J.B. (eds) 2009. South African Red Data Book: butterflies. SANBI Biodiversity Series Pretoria, South African National Biodiversity Institute. 13: 1–158.
IUCN. 2017. Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee. Download from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf
MECENERO, S., BALL, J.B., EDGE, D.A., HAMER, M.L., HENNING, G.A., KRĂśGER, M., PRINGLE, E.L., TERBLANCHE, R.F. & WILLIAMS, M.C. 2013. Conservation Assessment of Butterflies of South Africa, Lesotho and Swaziland: Red List and Atlas. Saftronics (Pty) Ltd., Johannesburg & Animal Demography Unit, Cape Town.
PRINGLE, E.L., HENNING, G.A. & BALL, J.B. (eds) 1994. Pennington's Butterflies of southern Africa. 2nd Edition. Cape Town, Struik-Winchester. 1–800, 210 pls.
SANBI. 2018 Beta Vegetation Map of South Africa, Lesotho and Swaziland (Shapefile) [vector geospatial dataset] 2018. https://bgis.sanbi.org/SpatialDataset/Detail/669 (Accessed on 28 June 2020).
WILLIAMS, M.C. 2019. Afrotropical Butterflies Encyclopaedia. http://www.metamorphosis.org.za/?p=articles&s=atb
WOODHALL, S.E. 2020. Field guide to butterflies of South Africa (2nd Edn). Penguin Books South Africa
Conservation Assessments: Lycaenidae: Erikssonia - Lepidochrysops
Issue consists of one article divided into downloadable PDFs.
This section contains the conservation assessments and Red Listings (all global) of the taxa assessed during the Southern African Lepidoptera Conservation Assessment (SALCA) project, ordered alphabetically by family and then by genus, species and subspecies. Details of the methods used can be found in the main article, with each assessment set out as follows:
Taxon scientific name followed by the describer of the taxon and the date.
English and Afrikaans common names.
Name of the assessor/ taxon author.
Red Listing with relevant categories and criteria, as per the IUCN Red Listing protocol (IUCN, 2017).
For those Least Concern taxa which are rare, their rarity category is also given.
Also indicated are those taxa endemic to the South Africa.
Taxon images are arranged with males above and females below (upper side and underside). Specimen label data and photo credits are tabulated on pages 155–160.
Seasonality table: This table shows the months of occurrence of the taxon, starting August and ending July. Each month is divided into quarters. Quarters for which there are Accepted records are highlighted in grey.
Distribution map: The map’s extent is for South Africa. Data points are displayed for Accepted and Locally Extinct records. The following key is used for each data point:
Red List category
Symbol
EX (also if a taxon is locally extinct)
Black
CR‒PE
Dark purple
CR
Red
EN
Orange
VU
Yellow
NT
Mustard
DD
Lilac
LC (rare categories)
Blue
LC
Green
Type locality: As originally stated by the describer.
Taxonomy: Highlighting any relevant taxonomic issues.
Distribution: A description of the taxon’s distribution.
Habitat: A description of the taxon’s habitat.
Vegetation types: The vegetation types where the taxon is found, based on the 2018 vegetation map (SANBI, 2018), for records flagged as both Accepted and Locally Extinct. For those sites where the taxon is locally extinct, the vegetation types are given in parentheses.
Assessment rationale: The assessment rationale provides information which justifies the Red Listing and related categories and criteria.
Change in status from the Southern African Butterfly Conservation Assessment (SABCA): For those taxa where the Red Listing changed from the previous SABCA assessment of 2012 (Mecenero et al., 2013), an evaluation is given of whether or not the change in status is genuine or non-genuine.
Threats: A description of any threats relevant to the taxon.
Conservation measures and research required: Any conservation measures or research required are mentioned here, where relevant.
Relevant literature: Taxon-specific references published since SABCA are listed in this field, where applicable. The key references listed below were perused for all assessments.
An example of citing a specific conservation assessment:
“Woodhall, S.E. 2020. Abantis bicolor. pp. 34–35 In: Mecenero et al. 2020. Outcomes of the Southern African Lepidoptera Conservation Assessment (SALCA). Metamorphosis 31(4): 1–160”.
Abbreviations:
AOO: Area of occupancy
CR: Critically Endangered
CR–PE: Critically Endangered – Possibly Extinct
DD: Data Deficient
EN: Endangered
EOO: Extent of occurrence
EX: Extinct
LC: Least Concern
NT: Near Threatened
VU: Vulnerable
RELEVANT LITERATURE
The relevant literature listed below applies to all the conservation assessments. Literature applying only to specific taxa is given after each conservation assessment.
HENNING, G.A., TERBLANCHE, R.F. & BALL, J.B. (eds) 2009. South African Red Data Book: butterflies. SANBI Biodiversity Series Pretoria, South African National Biodiversity Institute. 13: 1–158.
IUCN. 2017. Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee. Download from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf
MECENERO, S., BALL, J.B., EDGE, D.A., HAMER, M.L., HENNING, G.A., KRĂśGER, M., PRINGLE, E.L., TERBLANCHE, R.F. & WILLIAMS, M.C. 2013. Conservation Assessment of Butterflies of South Africa, Lesotho and Swaziland: Red List and Atlas. Saftronics (Pty) Ltd., Johannesburg & Animal Demography Unit, Cape Town.
PRINGLE, E.L., HENNING, G.A. & BALL, J.B. (eds) 1994. Pennington's Butterflies of southern Africa. 2nd Edition. Cape Town, Struik-Winchester. 1–800, 210 pls.
SANBI. 2018 Beta Vegetation Map of South Africa, Lesotho and Swaziland (Shapefile) [vector geospatial dataset] 2018. https://bgis.sanbi.org/SpatialDataset/Detail/669 (Accessed on 28 June 2020).
WILLIAMS, M.C. 2019. Afrotropical Butterflies Encyclopaedia. http://www.metamorphosis.org.za/?p=articles&s=atb
WOODHALL, S.E. 2020. Field guide to butterflies of South Africa (2nd Edn). Penguin Books South Africa
Outcomes of the Southern African Lepidoptera Conservation Assessment (SALCA)
The Southern African Lepidoptera Conservation Assessment (SALCA) was a collaborative venture between the Lepidopterists’ Society of Africa (LepSoc Africa), the Brenton Blue Trust (BBT) and the South African National Biodiversity Institute (SANBI), and formed part of the National Biodiversity Assessment (NBA). SALCA was founded on the importance of Lepidoptera both ecologically and as biodiversity indicators and the proven expertise of the participants during the Southern African Butterfly Conservation Assessment (SABCA). The main outcomes of the SALCA project are presented and discussed here.The SALCA tool, a custom-designed interactive distribution database, enabled high quality data to be derived so that accurate conservation assessments could be produced in accordance with IUCN methodology. The Red Lists of SALCA and SABCA facilitated the first opportunity to calculate the Red List Index (RLI) for South African butterflies during the period from 2012–2018. Other metrics required for the NBA included protection level and threats analyses. A further outcome was the critical habitat mapping for butterflies, which formed part of a screening tool implemented by SANBI, to ensure that land use changes did not cause any further loss of butterfly biodiversity.A comprehensive distribution database was developed for South African moths, enabling data to be analysed so that moth species potentially threatened could be short-listed for further investigation.Geographical hotspots and ecosystems (vegetation types) containing butterflies of conservation concern are highlighted. The societal, economic and human wellbeing benefits of conserving Lepidoptera are identified. Responses by LepSoc Africa to the increasing pressures on South African Lepidoptera biodiversity, are also reported on and discussed. The significant outcomes of SABCA and SALCA are benchmarked against a well-known European butterfly atlasing and conservation assessment project.The 165 SALCA Red Lists and conservation assessments are presented at the end of this publication
Conservation Assessments: Lycaenidae: Chrysoritis - Durbaniella
Issue consists of one article divided into downloadable PDFs.
This section contains the conservation assessments and Red Listings (all global) of the taxa assessed during the Southern African Lepidoptera Conservation Assessment (SALCA) project, ordered alphabetically by family and then by genus, species and subspecies. Details of the methods used can be found in the main article, with each assessment set out as follows:
Taxon scientific name followed by the describer of the taxon and the date.
English and Afrikaans common names.
Name of the assessor/ taxon author.
Red Listing with relevant categories and criteria, as per the IUCN Red Listing protocol (IUCN, 2017).
For those Least Concern taxa which are rare, their rarity category is also given.
Also indicated are those taxa endemic to the South Africa.
Taxon images are arranged with males above and females below (upper side and underside). Specimen label data and photo credits are tabulated on pages 155–160.
Seasonality table: This table shows the months of occurrence of the taxon, starting August and ending July. Each month is divided into quarters. Quarters for which there are Accepted records are highlighted in grey.
Distribution map: The map’s extent is for South Africa. Data points are displayed for Accepted and Locally Extinct records. The following key is used for each data point:
Red List category
Symbol
EX (also if a taxon is locally extinct)
Black
CR‒PE
Dark purple
CR
Red
EN
Orange
VU
Yellow
NT
Mustard
DD
Lilac
LC (rare categories)
Blue
LC
Green
Type locality: As originally stated by the describer.
Taxonomy: Highlighting any relevant taxonomic issues.
Distribution: A description of the taxon’s distribution.
Habitat: A description of the taxon’s habitat.
Vegetation types: The vegetation types where the taxon is found, based on the 2018 vegetation map (SANBI, 2018), for records flagged as both Accepted and Locally Extinct. For those sites where the taxon is locally extinct, the vegetation types are given in parentheses.
Assessment rationale: The assessment rationale provides information which justifies the Red Listing and related categories and criteria.
Change in status from the Southern African Butterfly Conservation Assessment (SABCA): For those taxa where the Red Listing changed from the previous SABCA assessment of 2012 (Mecenero et al., 2013), an evaluation is given of whether or not the change in status is genuine or non-genuine.
Threats: A description of any threats relevant to the taxon.
Conservation measures and research required: Any conservation measures or research required are mentioned here, where relevant.
Relevant literature: Taxon-specific references published since SABCA are listed in this field, where applicable. The key references listed below were perused for all assessments.
An example of citing a specific conservation assessment:
“Woodhall, S.E. 2020. Abantis bicolor. pp. 34–35 In: Mecenero et al. 2020. Outcomes of the Southern African Lepidoptera Conservation Assessment (SALCA). Metamorphosis 31(4): 1–160”.
Abbreviations:
AOO: Area of occupancy
CR: Critically Endangered
CR–PE: Critically Endangered – Possibly Extinct
DD: Data Deficient
EN: Endangered
EOO: Extent of occurrence
EX: Extinct
LC: Least Concern
NT: Near Threatened
VU: Vulnerable
RELEVANT LITERATURE
The relevant literature listed below applies to all the conservation assessments. Literature applying only to specific taxa is given after each conservation assessment.
HENNING, G.A., TERBLANCHE, R.F. & BALL, J.B. (eds) 2009. South African Red Data Book: butterflies. SANBI Biodiversity Series Pretoria, South African National Biodiversity Institute. 13: 1–158.
IUCN. 2017. Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee. Download from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf
MECENERO, S., BALL, J.B., EDGE, D.A., HAMER, M.L., HENNING, G.A., KRĂśGER, M., PRINGLE, E.L., TERBLANCHE, R.F. & WILLIAMS, M.C. 2013. Conservation Assessment of Butterflies of South Africa, Lesotho and Swaziland: Red List and Atlas. Saftronics (Pty) Ltd., Johannesburg & Animal Demography Unit, Cape Town.
PRINGLE, E.L., HENNING, G.A. & BALL, J.B. (eds) 1994. Pennington's Butterflies of southern Africa. 2nd Edition. Cape Town, Struik-Winchester. 1–800, 210 pls.
SANBI. 2018 Beta Vegetation Map of South Africa, Lesotho and Swaziland (Shapefile) [vector geospatial dataset] 2018. https://bgis.sanbi.org/SpatialDataset/Detail/669 (Accessed on 28 June 2020).
WILLIAMS, M.C. 2019. Afrotropical Butterflies Encyclopaedia. http://www.metamorphosis.org.za/?p=articles&s=atb
WOODHALL, S.E. 2020. Field guide to butterflies of South Africa (2nd Edn). Penguin Books South Africa