1,721,030 research outputs found
New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae)
No full textOlszewski, Piotr, Danilov, Yuriy N. (2020): New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae). Zootaxa 4878 (1): 189-194, DOI: https://doi.org/10.11646/zootaxa.4878.1.1
FIGURE 2 in New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae)
No full textFIGURE 2. Collecting localities of A. kowalczyki sp. nov.Published as part of Olszewski, Piotr & Danilov, Yuriy N., 2020, New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae), pp. 189-194 in Zootaxa 4878 (1) on page 192, DOI: 10.11646/zootaxa.4878.1.10, http://zenodo.org/record/442466
FIGURE 2 in New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae)
No full textFIGURE 2. Collecting localities of A. kowalczyki sp. nov.Published as part of Olszewski, Piotr & Danilov, Yuriy N., 2020, New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae), pp. 189-194 in Zootaxa 4878 (1) on page 192, DOI: 10.11646/zootaxa.4878.1.10, http://zenodo.org/record/442466
Ammophila laevicollis Ed. Andre 1886
No full textAmmophila laevicollis Ed. André, 1886 Spain, Valencia, Pinet dunes 23 May 2011 — 1♂, leg. K. Szpila, det. P. Olszewski, coll. NCU. Distribution. Algeria, France, Italy, Morocco, Portugal and Spain (Gadallah 2020, Pulawski 2020, Dollfuss 2013).Published as part of Olszewski, Piotr & Danilov, Yuriy N., 2020, New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae), pp. 189-194 in Zootaxa 4878 (1) on page 193, DOI: 10.11646/zootaxa.4878.1.10, http://zenodo.org/record/442466
Ammophila insignis F. Smith 1856
No full textAmmophila insignis F. Smith, 1856 United Arab Emirates, Wadi Wurayah, 13 April 2017 — 1♀, leg. K. Szpila, det. P. Olszewski, coll. NCU. Distribution. Palearctic Region: Algeria, Egypt, Iran, Israel, Jordan, Libya, Oman, Saudi Arabia, Syria, United Arab Emirates, Yemen. Also sub-Saharan Africa: Angola, Ethiopia, Gambia, Kenya, Libya, Malawi, Mozambique, Namibia, Niger, Senegal, South Africa, Tanzania, Zaire and Zimbabwe (Pulawski 2020, Dollfuss 2015, 2013).Published as part of Olszewski, Piotr & Danilov, Yuriy N., 2020, New species and records of the genus Ammophila W. Kirby, 1798 (Hymenoptera Sphecidae), pp. 189-194 in Zootaxa 4878 (1) on page 193, DOI: 10.11646/zootaxa.4878.1.10, http://zenodo.org/record/442466
New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species
No full textOlszewski, Piotr, Ljubomirov, Toshko, Wiśniowski, Bogdan, Kowalczyk, Jan Krzysztof, Krzyżyński, Maciej (2016): New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species. Zootaxa 4061 (2): 164-172, DOI: 10.11646/zootaxa.4061.2.
Diodontus
No full textKey to the Central and Eastern European species of Diodontus 1. Flagellum with 10 flagellomers. Females................................................................... 2 - Flagellum with 11 flagellomers. Males..................................................................... 9Published as part of Olszewski, Piotr, Ljubomirov, Toshko, Wiśniowski, Bogdan, Kowalczyk, Jan Krzysztof & Krzyżyński, Maciej, 2016, New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species, pp. 164-172 in Zootaxa 4061 (2) on page 166, DOI: 10.11646/zootaxa.4061.2.6, http://zenodo.org/record/26154
FIGURES 1–9. Diodontus spp. 1. D in New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species
No full textFIGURES 1–9. Diodontus spp. 1. D. insidiosus ♀, clypeus and mandibles, frontal view. 2. D. minutus ♀, habitus, lateral view. 3. D. tristis ♀, clypeus and mandibles, frontal view. 4. D. tristis ♀, habitus, lateral view. 5. D. minutus ♀, clypeus and mandibles, frontal view. 6. D. minutus ♀, first antennomeres. 7. D. major ♀ (by Dollfuss 1991), first antennomeres. 8. D. insidiosus ♀, external teeth of clypeus. 9. D. minutus ♀, external teeth of clypeus.Published as part of Olszewski, Piotr, Ljubomirov, Toshko, Wiśniowski, Bogdan, Kowalczyk, Jan Krzysztof & Krzyżyński, Maciej, 2016, New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species, pp. 164-172 in Zootaxa 4061 (2) on page 167, DOI: 10.11646/zootaxa.4061.2.6, http://zenodo.org/record/26154
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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