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Dziriblatta (Dziriblatta) ramososacculata Bohn 2021, spec. nov.
No full text9. Dziriblatta (Dziriblatta) ramososacculata, spec. nov. Figs. 20A–N, 21, 22, 25J,K, 27, 28, 29 Etymology. The species name refers to branched (Latin: ramosus) pouch lobes (Latin: sacculus) of the T7 gland. Diagnosis. In the male sex very similar to Dz. (Dz.) altotuberculata, distinguished by the shorter, broadly rounded latero-posterior corners of T7, the huge opening of the T7 glandular pit and the ramose pouch lobes. Material studied. Type material. MOROCCO. Holotype, 1♂, Moyen Atlas, btw. Merhraoua & Tizi-Oulmou, 1300 m, 28.V.1997, leg. B. & H.Bohn (completely on two slides, Ma 184/4). (Coll. Bohn, ZSM). Additional material. Morocco. 2♂, Moyen Atlas, near M. F. Tamtroucht (S Tizi-Oulmou, S Taza), 1700 m, 27. V.1997, leg. B. & H.Bohn (slides: 2♂, Ma 13a/5,7); 1♂, 8♀, same data as holotype (slides: ♂, Ma 184/1; 5♀, Ma 184/3,5–8). (Coll. Bohn, ZSM). Description. Size. Length of pronotum in male 2.30–2.43 mm (mean 2.37 mm), in female 2.24–2.43 mm (mean 2.37 mm); N 4/7. Male structures. (Figs. 20A–M, 21, 22) Resembling Dz. (Dz.) planotuberculata and Dz. (Dz.) altotuberculata, more similar to the latter one. Median concavity of T6 similarly deep as in latter one, but much wider (Figs. 20I–K). Latero-posterior corners of T7 similarly produced as in the first mentioned species, but much broader; pre-glandular margin (pm) as long as in Dz. (Dz.) altotuberculata; opening of glandular pit larger, occupying more than two thirds of the length of the tergite, elevations (el) of the posterior wall of the pit and of the bulge (bu) behind the pit similarly strongly sculptured as in Dz. (Dz.) altotuberculata. Pouch tubes with many short side branches, diameter of the main axis subbasally wider than elsewhere; interior cuticular lining with long, bristle-like microtrichial processes as in the preceding two species, inclined towards the exit (Figs. 25J, K). T10 with median part of posterior border shallowly but distinctly concave (Fig. 20H). Spatular bristles laterally on T5–7: densely arranged only on T7 (Figs. 20E–G), thinning out towards the latero-posterior corners. No glandular pores on T2. Colouration. Tegmina. In both sexes transparent, without dark markers. Male. Similar to Dz. (Dz.) planotuberculata . Head dark, with yellowish post-interocular stripe; forelegs for most part dark, mid- and hindlegs with extended yellowish parts; discs of thoracic nota dark, margins transparent; T2–6 anteriorly of the ridge dark, posteriorly on a relatively light ground colour with a dark maculose pattern producing at three positions more extended dark areas, T6 sometimes completely dark (Figs. 20A–C, I–K), T7 between bulge and the broadly dark lateral margin yellowish (Figs. 20D, 21, 22); sternites mainly dark, lateral margins broadly yellowish. Female. Head dark, with yellowish post-interocular stripe; legs almost completely yellowish; discs of thoracic nota dark, sometimes with moderately extended lightenings, margins transparent (Figs. 20M, N); tergites anteriorly of ridge dark, posteriorly on a yellowish ground colour with a moderately extended dark maculose pattern; sternites mainly dark, with broadly yellowish lateral margins. Distribution. Only known from two neighbouring localities in the massive Jebel Bou Iblane at the northern end of the Middle Atlas: One (Ma 184) between the distribution areas of Dz. (Dz.) planotuberculata and Dz. (Dz.) altotuberculata, at the other locality (Ma 13) they were found together with the first mentioned species, at elevations of 1300–1700 m (Figs. 27, 28).Published as part of Bohn, Horst, 2021, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) III. The species of the subgenus Dziriblatta, pp. 201-250 in Zootaxa 4964 (2) on page 213, DOI: 10.11646/zootaxa.4964.2.1, http://zenodo.org/record/470917
Dziriblatta (Dziriblatta) planotuberculata Bohn 2021, spec. nov.
No full text7. Dziriblatta (Dziriblatta) planotuberculata, spec. nov. Figs. 14A–N, 15, 16, 27, 28, 29 Diagnosis. In the male distinguished from Dz. (Dz.) lobososacculata by the very different structures of pit and pouch lobes and the length of the pre-glandular area of T5,6 strongly increasing towards the median notch (n in Fig. 14I); from Dz. (Dz.) undulata by the differences in the shape of T6, and from Dz. (Dz.) altotuberculata and Dz. (Dz.) ramososacculata by the lower elevations on the posterior wall of the pit and the differently shaped latero-posterior corners of T7. Etymology. The species name refers to the relatively flat (in Latin: planus) mound (in Latin: tuber) on the posterior wall of the glandular pit. Material studied. Type material. MOROCCO. Holotype, 1♂, Moyen Atlas, near M. F. Tamtroucht (S Tizi-Oulmou, S Taza), 1700 m, 27.V.1997, leg. B. & H.Bohn (completely on two slides: Ma 13a/6). (Coll. Bohn, ZSM). Additional material. MOROCCO. 2♂, same data as holotype (slides: 2♂, Ma 13a/1,3); 1♂, Moyen Atlas, Jbel bou Iblane, W above Tamjilt, 2000 m, 20. V.1989, leg. B. & H.Bohn (slide: Ma 80/1); 4♂, 6♀, 1O, Moyen Atlas, Jbel bou Iblane, Talzemt, 1800 m, 21. V.1989, leg. B. & H.Bohn (slides: 2♂, Ma 81/1,3; 1♀, Ma 81/2); 5♂, 6♀, Moyen Atlas, Jbel bou Iblane, Talzemt, 1800 m, 21.IV.1998, leg. B. & H.Bohn (slide: 1♀, Ma 81a/3); 1♂, 1♀, Moyen Atlas, Jbel bou Iblane, Tizi-n’Tiskine, 1500–1600 m, 26. V.1997, leg. B. & H.Bohn (slide: ♂, Ma 177/2); 4♂, 6♀, Moyen Atlas, Jbel bou Iblane, btw. Tafferte & Refuge de Tafferte, 1500 m, 21.IV.1998, leg. B. & H.Bohn (slides: 2♂, Ma 178a/1,2). (Coll. Bohn, ZSM). Description. Size. Length of pronotum in male 2.05–2.35 mm (mean 2.21 mm), in female 2.40 mm (mean 2.40 mm); N 8/2. Male structures. Posterior borders of T2–5 (Figs. 14A, B) fairly straight or slightly concave; posterior border of T6 with a slightly deeper median excavation than in the preceding species, transversal ridge with a broad mesal excurvation to the anterior (Figs. 14I–K), length of pre-ridge area towards the median notch rather strongly increasing; surface of T6 mesally with a similar trough as in Dz. (Dz.) lobososacculata, but posteriorly more or less closed by a slight bending up of the posterior border of the tergite. Latero-posterior corners of T7 moderately produced to broadly rounded lobes, posterior border of the tergite in between deeply concave; pre-glandular margin of normal length (Figs. 15, 16), not as far protruding anteriorly as in the following two species. Opening of the glandular pit posteriorly not well demarcated, occupying more than half of the length and more than a third of the breadth of T7 (Figs. 14D, 15, 16; pb in Fig. 15 indicates the approximate position of the posterior border of the opening); walls of the pit almost uprightly descending, forming a rather deep bag-like pit. Posterior wall with a relatively low elevation (ce central elevation) increasing in height up to the middle depth of the pit; cross-section of the pit hole, therefore, from the oval at the opening changing to a crescent shape in the lower half of the pit. Elevation of the posterior wall restricted to the mesal two thirds of its breadth and laterally lowered towards the gutters (gu), which smoothly continue downward into the trails (tl). Anterior wall of pit mesally near the bottom with a membraneous window (w) containing the openings of the two pouch lobes; posteriorly adjacent, at the bottom between the trails the beginning of a long, relatively low ridge (pr posterior ridge) reaching up to the pit opening where it continues into a bulge (bu) ending at the posterior border of the tergite; bulge fairly wedge-shaped, posteriorly narrow and usually well set off, broadening anteriorly and fading away near the posterior border of the pit opening (pb). Pouch lobes narrowly cylindrical, tubelike, of more than abdominal length, wriggled in about half of the specimens with few very short side branches (Fig. 16), interiorly with numerous bristle-like microtrichial structures, longer than the diameter of the tubes and, therefore, inclined towards the exit (as in Figs. 25J, K); near the entry into the pit with numerous long bristles reaching with their tips into the pit hole; tubes separately, but close together opening into the pit, within the above-mentioned window. T10 with median part of posterior border shallowly but distinctly concave (Fig. 14H). Spatular bristles laterally on T5–7, densely arranged only on T7 (Figs. 14E–G). No glandular pores on T2. Colouration. Tegmina in both sexes transparent (Figs. 14L–N), at most with few small darker dots. Male. Head dark, with yellowish post-interocular stripe; forelegs for most part dark, mid- and hindlegs with extended yellowish parts; discs of thoracic nota dark, margins transparent (Fig. 13L); T2-6 anteriorly of the ridge dark, posteriorly on a yellowish ground colour with a dark maculose pattern producing at three positions more extended dark areas (Figs. 14A–C, I–K), in T7 a large median area posteriorly of the pit opening yellowish (Figs. 14D, 15, 16); sternites mainly dark, lateral margins broadly yellowish. Female. Head dark, with yellowish post-interocular stripe; legs almost completely yellowish; discs of thoracic nota usually dark, not seldom with extended lightenings (Figs. 14M, N); tergites anteriorly of the ridge dark, posteriorly on a yellowish ground colour with a modestly extended dark maculose pattern; sternites mainly dark, lateral margins broadly yellowish. Distribution. The species continues the distribution of the preceding species along the Middle Atlas North of the River Sebou, covering the southern part of the massive Jebel Bou Iblane, at elevations of 1500–2000 m (Figs. 27, 28).Published as part of Bohn, Horst, 2021, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) III. The species of the subgenus Dziriblatta, pp. 201-250 in Zootaxa 4964 (2) on pages 211-212, DOI: 10.11646/zootaxa.4964.2.1, http://zenodo.org/record/470917
Poliska and Tauromee, Riley County
No full textJeremy Bohn, “Poliska and Tauromee, Riley County,” Chapman Center Research Collections, https://ccrsresearchcollections.omeka.net/items/show/112.This is a study of Poliska and Tauromee, Kansas. These two towns, in the vicinity of Manhattan, Kan., only lasted two-three years, due to several factors, including the ever-growing city of Manhattan, which basically sucked both towns in. This study uses early maps, field work, and early histories of Manhattan
The relative importance of seed competition, resource competition and perturbations on community structure
No full textWhile the regional climate is the primary selection pressure for whether a plant strategy can survive, however, competitive interactions strongly affect the relative abundances of plant strategies within communities. Here, we investigate the relative importance of competition and perturbations on the development of vegetation community structure. To do so, we develop DIVE (Dynamics and Interactions of VEgetation), a simple general model that links plant strategies to their competitive dynamics, using growth and reproduction characteristics that emerge from climatic constraints. The model calculates population dynamics based on establishment, mortality, invasion and exclusion in the presence of different strengths of perturbations, seed and resource competition. The highest levels of diversity were found in simulations without competition as long as mortality is not too high. However, reasonable successional dynamics were only achieved when resource competition is considered. Under high levels of competition, intermediate levels of perturbations were required to obtain coexistence. Since succession and coexistence are observed in plant communities, we conclude that the DIVE model with competition and intermediate levels of perturbation represents an adequate way to model population dynamics. Because of the simplicity and generality of DIVE, it could be used to understand vegetation structure and functioning at the global scale and the response of vegetation to global change
Passive Learning of Deterministic Büchi Automata by Combinations of DFAs
No full textWe present an algorithm that constructs a deterministic Büchi automaton in polynomial time from given sets of positive and negative example words. This learner constructs multiple DFAs using a polynomial-time active learning algorithm on finite words as black box using an oracle that we implement based on the given sample of ω-words, and combines these DFAs into a single DBA. We prove that the resulting algorithm can learn a DBA for each DBA-recognizable language in the limit by providing a characteristic sample for each DBA-recognizable language. We can only guarantee completeness of our algorithm for the full class of DBAs through characteristic samples that are, in general, exponential in the size of a minimal DBA for the target language. But we show that for each fixed k these characteristic samples are of polynomial size for the class of DBAs in which each subset of pairwise language-equivalent states has size at most k
Thoughts on the Importance of the Meso Perspective: the “ Plattform Produktives Stadtgrün” / Gedanken zur Bedeutung der Mesoperspektive: „Plattform Produktives Stadtgrün“
No full textInvited to contribute to a book section on Berlin, Katrin Bohn thinks about the importance of a middle ground between the big pressing macro questions of climate change and the micro spaces of individual food system activities. She writes: ‘Judging by the realities of environmental degradation, traditional urban planning has failed. Concerns of experts have not been sufficiently acknowledged. It requires a middle ground—a meso perspective—to better enable conversation between the various urban stakeholders and bring about widely supported and lasting change. How can this be initiated? In a time of social media, the author proposes to look at a recently developed tool for information, communication, networking, and—ultimately—urban planning’.Bohn uses the Plattform Produktives Stadtgrün [Plattform Productive Urban Green], a Berlin-based interactive online tool developed in a collaboration between the local council, local community gardeners and external experts, including Katrin, to illustrate such a meso perspective.The book Urban Open Space + is edited by Carolin Mees and published by Jovis. Subtitled Strategies inbetween architecture and open space planning, the bi-lingual publication (English/German) explores ‘commonly used and designed open spaces [as] anchor points in the city and a possible response to the consequences of urbanization and climate change, as well as to the presence of social and cultural differences’
Fig. 6A–K in Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) from North Africa, Spain, and the Macaronesian islands. I. The nine subgenera of the genus
No full textFig. 6A–K. Male structures of Blattantis montana. A–F, K: variation in the shape of the T7 gland, b bottom of glandular pit, gu gutter, p anterior pouch, pm preglandular margin of 7, arrows in D enclose opening of the pit, arrowhead points to a large bristle, white arrow in K (same specimen as in E, but differently focused) points to the posterior pouch; G–I: variation in size and number of glandular pores on T2; J: SEM picture of forceps bristles from the glandular pit. – Enlargements: Same scale for A–I,K. – Identifications: A,G (Ma 156/2), B (Ma 156/10), C (Ma 159/3), D (Ma 18/6), E,H,K (Ma 145/3), F (Ma 86/3), I (Ma 18/22), J (Ma 86/9).Published as part of Bohn, Horst, 2019, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) from North Africa, Spain, and the Macaronesian islands. I. The nine subgenera of the genus, pp. 1-73 in Zootaxa 4610 (1) on page 46, DOI: 10.11646/zootaxa.4610.1.1, http://zenodo.org/record/323556
Ageing Behaviour of HTPB Based Rocket Propellant Formulations
No full textThe ageing of HTPB propellant formulations containing nanoAl is investigated. During natural ageing the material undergoes a series of slow physico-chemical degradation reactions. By using accelerated ageing conditions it is possible to simulate the material behaviour at different time-temperature conditions especially focused on the in-service conditions. The mechanical and ageing behaviour of aluminised solid rocket propellants were investigated in terms of uniaxial tensile strength, DMA measurements, impact and friction sensitivity tests, SEM analyses
Control y Biología del Helecho Trepador Japonés (Lygodium japonicum)
No full textThis 7-page Spanish-language fact sheet describes this non-native, invasive vine which is widespread in damp areas in North and West Florida — its biology and control measures. Written by Patrick J. Minogue, Daniela Chevasco, Francisco Escobedo, and Kimberly K. Bohn and published by the UF Department of School of Forest Resources and Conservation, December 2010.
FOR282/FR344: Control y Biología del Helecho Trepador Japonés (Lygodium japonicum) (ufl.edu
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