50 research outputs found
Reservoir Role of Lizard Psammodromus algirus in Transmission Cycle of Borrelia burgdorferi Sensu Lato (Spirochaetaceae) in Tunisia
To investigate the reservoir role of the lizard Psammodromus algirus for the Lyme disease spirochete, 199 lizards were trapped from April to October 2003 in El Jouza, northwestern Tunisia. In this site, the infection rate of free-living Ixodes ricinus (L.) by Borrelia was evaluated by immunofluorescence as 34.6% for adult ticks and 12.5% for nymphs. Eighty percent of P. algirus (117/146) captured during this study were infested by I. ricinus, the predominant tick species collected from lizards. The intensity of tick infestation of this host by larvae and nymphs ranged from 0.14 to 7.07 and from 1.5 to 6.58, respectively. These immature stages of I. ricinus were found on lizards in spring and the beginning of summer, with a peak of intensity during June (10.16 immature ticks by lizard). Tissue cultures from lizards and xenodiagnosis with larval I. ricinus were used to assess the infection and the ability, respectively, of infected lizards to transmit Borrelia to naive ticks. Seventeen percent of xenodiagnostic ticks (40/229) acquired B. lusitaniae while feeding on P. algirus. Therefore, we demonstrated the ability of the lizards to sustain Borrelia infection and to infect attached ticks, and we proved that P. algirus is a reservoir host competent to transmit B. lusitania
Coexistence between camels and wild animals
Abstract Livestock, especially small ruminants and camels, have been implicated for negatively affecting the abundance and distribution of other large wild animals in desert areas. We tested whether the occurrence of two emblematic species, the Dorcas gazelle (Gazella dorcas) and Houbara bustard (Chlamydotis undulata undulata), in south-eastern Tunisia was affected by camel abundance. Data were collected during March and April 2004. The study area was divided into 32 400 km2 sample units (20 km x 20 km) distributed over a regular grid. Within each unit, five sampling sites were randomly placed 3 km apart along a line transect. Each sampling site was visited once for a single 30-minute survey session. During these monitoring periods, we collected data on Houbara bustards and dorcas gazelle presences. We also recorded the number of sheep, goats and camels. Areas occupied by these two wild species were characterized by a significantly higher number of camels than unoccupied areas. The occurrence probability of these species was positively correlated with the number of camels. These results may be explained by the fact that the two wild species share similar habitat requirements with camels. The three species coexist in open areas and seem to avoid urbanised and agricultural areas. Camels may not compete with the other two wild species because camels generally consume poor-quality plants that are generally unpalatable and indigestible for these two species
Conservative management of post-appendicectomy intra-abdominal abscesses
<p>Abstract</p> <p>Purpose</p> <p>Appendicitis is the most common abdominal inflammatory process in children which were sometimes followed by complications including intra-abdominal abscess. This later needs classically a surgical drainage. We evaluated the efficacy of antibiotic treatment and surgical drainage.</p> <p>Methods</p> <p>Hospital records of children treated in our unit for intra-abdominal post appendectomy abscesses over a 6 years period were reviewed retrospectively.</p> <p>Results</p> <p>This study investigates a series of 14 children from 2 to 13 years of age with one or many abscesses after appendectomy, treated between 2002 and 2007. Seven underwent surgery and the others were treated with triple antibiotherapy. The two groups were comparable.</p> <p>For the 7 patients who receive medical treatment alone, it was considered efficient in 6 cases (85%) with clinical, biological and radiological recovery of the abscess. There was one failure (14%). The duration of hospitalization from the day of diagnosis of intra-abdominal abscess was approximately 10.28 days (range 7 to 14 days). In the other group, the efficacy of treatment was considered satisfactory in all cases. The duration of hospitalization was about 13 days (range: 9 to 20).</p> <p>Conclusion</p> <p>Compared to surgical drainage, antibiotic management of intra-abdominal abscesses was a no invasive treatment with shorter hospitalization.</p
A first assessment of genetic variability in the Eurasian Stone-curlew Burhinus oedicnemus
The Eurasian Stone-curlew is a species of conservation
concern in Europe. We investigate for the first time the
extent of population structure among populations sampled
from six geographical areas, representing four subspecies
inhabiting the western part of the speciesâ distribution.
Neither mitochondrial nor nuclear markers fully supported
current subspecies boundaries. However, both markers
support significant differentiation of the Canary Island
populations from those sampled from the Mediterranean.
Further work is needed to establish the taxonomic status
of this potentially distinct Macaronesian taxon. More
broadly, further genetic research is required to design and
implement an effective conservation plan for this species
Sphincterochilidae from Tunisia, with a note on the subgenus Rima Pallary, 1910 (Gastropoda, Pulmonata)
In order to establish an updated checklist of terrestrial gastropod from Tunisia, a revision of the species of Sphincterochilidae is presented, using bibliographic and museum records and the results of our own field work. As a result, only two species, Sphincterochila candidissima and S. tunetana, are accepted to occur in Tunisia, and their type specimens are illustrated. The study of the morphological characters of the genital organs of both species clarified their subgeneric affiliation. Comparison of S. tunetana with S. cariosa from Lebanon showed that the first has to be classified within the subgenus Albea, and the latter within Sphincterochila s. str.; the subgenus Rima Pallary, 1910 remains in the synonymy of Sphincterochila s. str. Bibliographic records of S. baetica and S. otthiana from Tunisia could not be confirmed, the latter probably lives close to the border with Algeria
Sphincterochilidae from Tunisia, with a note on the subgenus Rima Pallary, 1910 (Gastropoda, Pulmonata)
In order to establish an updated checklist of terrestrial gastropod from Tunisia, a revision of the species of Sphincterochilidae is presented, using bibliographic and museum records and the results of our own field work. As a result, only two species, Sphincterochila candidissima and S. tunetana, are accepted to occur in Tunisia, and their type specimens are illustrated. The study of the morphological characters of the genital organs of both species clarified their subgeneric affiliation. Comparison of S. tunetana with S. cariosa from Lebanon showed that the first has to be classified within the subgenus Albea, and the latter within Sphincterochila s. str.; the subgenus Rima Pallary, 1910 remains in the synonymy of Sphincterochila s. str. Bibliographic records of S. baetica and S. otthiana from Tunisia could not be confirmed, the latter probably lives close to the border with Algeria
Tychobythinus atlanticus Besuchet 1963
<i>Tychobythinus atlanticus</i> Besuchet, 1963 <p>(Figs. 1F, 2B, 3)</p> <p> <i>Tychobythinus atlanticus</i> Besuchet 1963b: 218, fig. 1 (aedeagus); Kocher 1969: 5; Löbl & Besuchet 2004: 314.</p> <p> <b>Material examined</b>. <b>NORTHERN MOROCCO</b>: <b>Taza-Al Hoceïma-Taounate region</b>: Djebel Tazzeka, 1.700 m, 1 male (holotype) (R. Mussard) (MHNG).</p> <p> <b>Comparative notes</b>. The characters that distinguish this species from <i>T. escalerai</i> and <i>T. algiricus</i> have already been discussed above.</p> <p> <b>Distribution</b> (Fig. 3). The species is known only from the type locality (Morocco, Djebel Tazzeka) where 1 male was collected.</p>Published as part of <i>Sabella, Giorgio, Viglianisi, Fabio Massimo, D'Urso, Vera & Nouira, Said, 2014, A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae), pp. 579-586 in Zootaxa 3893 (4)</i> on page 585, DOI: 10.11646/zootaxa.3893.4.7, <a href="http://zenodo.org/record/230192">http://zenodo.org/record/230192</a>
A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae)
Sabella, Giorgio, Viglianisi, Fabio Massimo, D'Urso, Vera, Nouira, Said (2014): A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae). Zootaxa 3893 (4): 579-586, DOI: http://dx.doi.org/10.11646/zootaxa.3893.4.
Tychobythinus algiricus Raffray 1871
<i>Tychobythinus algiricus</i> (Raffray, 1871) <p>(Figs 1A–D, 2C–E, 3)</p> <p> <i>Bythinus algiricus</i> Raffray 1871: 160.</p> <p> <i>Bythinus algericus</i> Raffray 1873: 366, pl. XV, fig. 6 (antenna); Pic 1901: 403; Normand 1904: 218; Peyerimhoff 1910: 288.</p> <p> <i>Bythinus</i> (<i>Machaerites</i>) <i>algiricus</i> Reitter 1882: 483.</p> <p> <i>Bryaxis</i> (groupe V) <i>algirica</i> Raffray 1904: 275.</p> <p> <i>Bythinopsis algerica</i> Raffray 1908: 283; Raffray 1924: 85.</p> <p> <i>Bythinopsis algirica</i> Raffray 1911: 125; Martinez de la Escalera 1914: 99; Normand 1935: 85.</p> <p> <i>Chiasmatobythus algericus</i> Jeannel 1956: 68, figs 61–62 (habitus), 63 (aedeagus).</p> <p> <i>Chiasmatobythus algiricus</i> Kocher 1958: 207.</p> <p> <i>Tychobythinus algericus</i> Besuchet 1962: 349; 1963a: 230; 1963b: 219; Kocher 1969: 5; Ribera Almerje 1972: 137; Besuchet 1999: 52.</p> <p> <i>Tychobythinus algiricus</i> Löbl & Besuchet 2004: 314.</p> <p> <i>Bythinus tuniseus</i> Pic 1901: 403; Normand 1904: 218 (synonymized by Peyerimhoff 1910: 289).</p> <p> <i>Bryaxis</i> (groupe V) <i>tunisea</i> Raffray 1904: 276.</p> <p> <i>Bythinopsis tunisea</i> Raffray 1908: 284.</p> <p> <i>Bythinopsis algerica</i> var. <i>tunisea</i> Raffray 1924: 85.</p> <p> <i>Chiasmatobythus remyi</i> Jeannel 1956: 69 (synonymized by Besuchet 1999: 52); Kocher 1958: 208.</p> <p> <i>Tychobythinus remyi</i> Kocher 1969: 5.</p> <p> <i>Tychobythinus occidentalis</i> Besuchet 1962: 348 (<b>syn. nov</b>.).</p> <p> <b>Material examined</b>. <b>NORTHERN TUNISIA</b>: <b>Tabarka governorate</b>: Aïn Draham, 2 males and 1 female, VI.1938 (H. Normand) (INAT); idem, 1 male and 1 female, X.1938 (H. Normand) (INAT); idem, 1 male and 1 female, VI.1939 (H. Normand) (CCo); idem, 1 male and 1 female, VI.1939 (H. Normand) (MHNG); idem, 1 male and 1 female, 02.X.1976 (H. Franz) (MHNG); idem, 1900, 1 male (holotype of <i>Bythinus tuniseus</i>) (M. Pic) (MNHN, ex coll. Peyerimhoff). <b>Bèja governorate</b>: km 32 road Aïn Draham <b>-</b> Bèja, 800 m, 1 male, 30.XI.1997, under stone <b>(</b> G. Sabella & A. Alicata) (DBUC); <b>Le Kef governorate</b>: Le Kef, 3 females, IV.1940 (H. Normand) (INAT); idem, 3 ex., XI.1939 (H. Normand) (CCo); idem, 2 ex., VI.1951 (H. Normand) (CCo); idem, 1 male, VI.1939 (H. Normand) (MHNG); idem, 1 male and 2 females, XI.1939 (H. Normand) (MHNG); idem, 2 females, VI.1949 (H. Normand) (MSNM); <b>Jendouba governorate</b>: Camp de la Santé, 1 male (H. Normand) (INAT); Bulla Regia, 1 male and 1 female (MNHN, ex. coll. Pic). <b>NORTHERN ALGERIA</b>: Algeria, 1 female (type <i>algiricus</i> Raffray) (MNHN); <b>El Tarf province</b>: Marais de la Calle, 1 male and 4 females, V.1935 (H. Normand) (INAT); idem, 3 ex., V.1938 (H. Normand) (CCo); idem, 4 females, V.1938 (H. Normand) (MHNG); idem, 1 female (H. Normand) (MSNM); <b>Annaba province</b>: Edough Mount, 1 female (sub <i>Machaerites theryi</i>), 09.IV.1893, (MNHN, ex. coll. Pic); idem, 1 female (sub <i>Machaerites theryi</i>), 08.V.1893, (MNHN, ex. coll. Pic); Annaba (new name of Bône), 1 male (sub <i>Machaerites jugurthae</i>) (MNHN, ex. coll. de Saulcy); <b>Jijel province</b>: El Milia, 3 ex., 10.X.1928 (H. Normand) (INAT); <b>Blida province</b>: Mouzaïa Mount, 1 female, IV.1909 (INAT); idem, 1 male, IV.1909 (MHNG); Chiffa, 1 ex. (MNHL); Chiffa Gorges, 1 male, 25.IV.1895 (MHNG); Atlas de Blida, Chréa, Les Glacières, 1.100 m, 1 female, 3.V.1988 (C. Besuchet, I. Löbl & D. Burckhardt) (MHNG); Sidi Zraïm near Mouzaïa, 11.V.1934, 1 male and 1 female (MNHN, ex. coll. Peyerimhoff); Zaouïa de Mouzaïa, 1 male and 1 female (MNHN, ex. coll. Peyerimhoff); Platrière marsh, near Mouzaïa, 1 female, 01.V.1894 (MNHN, ex. coll. Peyerimhoff); Kehir river of Mouzaïa, 1 male, 02.VII.1905 (MNHN, ex. coll. Peyerimhoff); Kaïrons river of Mouzaïa, 1 female, VIII.1905 (MNHN, ex. coll. Peyerimhoff); <b>Tipasa province</b>: Koléa, Oum el Hallouf, 2 males and 1 female (P. M. de Peyerimhoff) (MHNG); idem, 3 males and 2 females (MHNG); idem, 5 males and 1 female (MNHN, ex. coll. Peyerimhoff); idem, 1 male <b>(</b> sub <i>Machaerites theryi</i>) (MNHN, ex. coll. de Saulcy); idem, 1 male and 1 female (MNHN, ex. coll. Sainte Claire Deville); idem, 2 ex. (MNHL); <b>Algiers province</b>: Alger, 2 males <b>(</b> MNHN, ex. coll. de Saulcy); Masafran marsh, 1 female (MHNG); <b>MOROCCO</b>: <b>Tanger-Tétouan region</b>: Boucharen, near Larache, 3 ex. (INAT); idem, 4 males and 3 females, V.1910 (MHNG); idem, 04.V.1910, 4 males and 3 females (MNHN, ex coll. Peyerimhoff and coll. Raffray); Larache, 2 males and 2 females (coll. Raffray, MNHN); Khémis of Sahel, near Larache, 4 females, 03.IV.1959 (C. Besuchet) (MHNG); Moulay Bousselham, Merja, 1 male, 04.II.1966 (Lapin) (MHNG); <b>Gharb-Chrarda-Béni Hssen region</b>: Moulay Bousselham, Merja, 1 male, 04.II.1966 (Lapin) (MHNG); idem, Rharb, 2 males, 22.XII.1968 (Lapin) (MHNG); Sebou river, near Kenitra, 1 female, IV.1960 (R. Mussard) (MHNG); <b>Rabat region</b>: Fouarat river, Mamora forest, 1 male, 21.IV.1962 (R. Mussard) (MHNG); idem, 1 male, 26.I.1962 (R. Mussard) (MHNG); <b>Fes-Boulemane region</b>: Dayèt Aouaoua, south of Imouzzer, 1 male, 16.VII.1963 (R. Mussard) (MHNG); <b>Meknès-Tafilalet region</b>: Zaouïa Ifrane, 1.600 m, 1 male, VIII.1950, (C. Remy) (coll. Raffray, MNHN); <b>Tadla-Azilal region</b>: Beni-Mellal, VIII.1950, 1 female (holotype of <i>Chiasmatobythus remyi</i>) (MNHN); <b>Souss Massa Draâ region</b>: Tazentoute, Wit Tandoum cave, subterrain river, 1 female, 10.VIII.1971 (J. N. Romero) (MHNG). <b>Marrakech-Tensift-El Haouz region</b>: south slope of Tizi-n-Test, 1.600 m, 1 female (holotype of <i>Tychobythinus occidentalis</i>) (C. Besuchet) (MHNG); idem, 1.600 m, 1 female (paratype of <i>Tychobythinus occidentalis</i>) (C. Besuchet) (MHNG).</p> <p> <b>Redescription</b>. Body 1.05–1.25 mm long, pubescence dense and fairly uniform consisting of long and flattened setae (length: 0.07–0.08 mm) on head, pronotum, elytra and abdomen, other suberect setae shorter (length: 0.03–0.04 mm) on antennae and legs and thin fluff on apical segment of maxillary palpi.</p> <p> <i>Head</i> (Figs 1A, 1D) distinctly wider (0.27–0.31 mm) than long (0.18–0.19 mm), frontal lobe width 0.12–0.134 mm, front between antennal tubercles glossy with some punctures concentrated on sides; well-impressed and large median sulcus reaching vertexal foveae. Clypeal carina clearly visible in lateral view, occipital region with short median longitudinal carina. Segment II of maxillary palpi with 10–14 tubercles, segment III slightly longer than wide with 4–6 tubercles, apical segment of maxillary palpi (Fig. 2D) little more than 2 times longer (0.20–0.21 mm) than wide (0.08 mm). Antennae (Fig. 2C) 0.48–0.50 mm long with scapus about 2.5 times longer (0.12–0.13 mm) than wide (0.049–0.050 mm), antennomere II longer (0.05 mm) than wide (0.04 mm) and wide as scape, antennomere III slightly longer than wide, antennomeres IV and VIII subequal and wider than long, antennomeres IX and X distinctly transverse, XI about two times longer than wide, and longer than about 2 times combined length of IX and X.</p> <p> <i>Pronotum</i> wider (0.30 mm) than long (0.23–0.24 mm), widest slightly before the middle, pleural carina barely visible, with deep antebasal sulcus.</p> <p> <i>Elitra</i> width 0.50 mm, length 0.48–0.50 mm.</p> <p> <i>Metasternum</i> with surface impressed by large and thick punctures.</p> <p> <i>Legs</i> not particularly elongate, protrochanters and profemora without tubercles. Metatibiae 0.40–0.41 mm long.</p> <p> <i>Male.</i> Winged and macrophthalmous (20–30 ommatidia) brown reddish with sometimes black abdomen, or micropterous and microphthalmous (6–10 ommatidia), body entirely pale brown. Occipital region with median longitudinal carina reaching about to posterior edge of vertexal foveae (Fig. 1A). Gular region (Fig. 1C) behind labium with deep and broad impression margined posteriorly by transverse ridge projecting on each side of head as sharp tubercle, this ridge with acute median process projecting ventrally bearing two tufts of modified setae at tips (Fig. 1B). Aedeagus (Fig. 2E) 0.26–0.28 mm long, ovoid with relatively short parameres that are sinuate and convergent, each bearing 3 bristles. Internal sac with 2 big and long teeth and 4 smaller and short spines.</p> <p> <i>Female</i>. Occipital region with short median longitudinal carina reaching to about its middle (Fig. 1D). Wingless and microphthalmous with 2–6 ommatidia, entirely pale brown, gular region unmodified.</p> <p> <b>Notes</b>. Besuchet (1962: 349) described <i>Tychobythinus occidentalis</i> based on two females (holotype and paratype) from Morocco (Tizi-n-Test) stating that this species is close to <i>Tychobythinus algiricus</i> from which it differs in its smaller size, narrower frontal lobe, and very reduced eyes. We have examined a long series of specimens of <i>T. algiricus</i> from Tunisia, Algeria, and Morocco which were compared favourably with the holotype and paratype of <i>T. occidentalis</i>, and found that all features used by Besuchet could be seen as simple gradation or variation within these series; so <i>Tychobythinus occidentalis</i> is here placed as the junior synonym of <i>Tychobythinus algiricus</i> (<b>syn. nov.</b>).</p> <p> According to Raffray (1873: 366) the typical series of this species (with males and females) was collected in the Chiffa Gorges in moss and in the Boghari Forest under a large stone. In the collections of the MNHN we could not find any specimens with labels referring to these two localities, and only one female with the locality label “ Algeria ” and determination label “ <i>Bythinus algiricus /</i> Type ”, both handwritten by Raffray.</p> <p> <b>Distribution</b> (Fig. 3). <i>T. algiricus</i> is a widespread species in the Maghreb (Tunisia, Algeria, Morocco). Apart from the material examined it is reported from Fernana and Tebousouk (Tunisia) (Jeannel 1956: 69) and Tangeri (Besuchet 1962: 349).</p>Published as part of <i>Sabella, Giorgio, Viglianisi, Fabio Massimo, D'Urso, Vera & Nouira, Said, 2014, A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae), pp. 579-586 in Zootaxa 3893 (4)</i> on pages 580-584, DOI: 10.11646/zootaxa.3893.4.7, <a href="http://zenodo.org/record/230192">http://zenodo.org/record/230192</a>