52 research outputs found
Camallanus polypteri n. sp. (Nematoda: Camallanidae) in freshwater fishes from Burkina Faso
Camallanus polypteri n. sp. is described from Polypterus bichir (type host), Synodontis schall and Clarias anguillaris in Lake Tingrela, Burkina Faso. It differs from the other African species of the subfamily Camallaninae parasitizing freshwater fishes, in that it lacks tridents. All species of the subfamily Camallaninae that lack tridents differ from the new species by at least one of the two following characters: a greater number of longitudinal ridges on the inner surface of the buccal capsule; and a muscular oesophagus shorter than the glandular oesophagus. In accordance with the classification of Petter (1979) , the new species is placed in the genus Camallanus Railliet & Henry, 1915, owing to the length of the posterior chamber of the buccal capsule, which is less than one third of the length of the anterior chamber.The articles have been scanned in colour with a HP Scanjet 5590; 600dpi.
Adobe Acrobat X Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format
Parasites of South African freshwater fish. III. Rhabdochona (Rhabdochona) versterae n. sp. (Nematoda: Rhabdochonidae) from the spot-tailed robber, Alestes imberi Peters 1852
A new species of Rhabdochona was recovered from the spot-tailed robber, Alestes imberi Peters 1852 in the Sabie River, Kruger National Park. It differs from its nearest relative, Rhabdochona moraveci Puylaert 1973 in that it has shorter spicules and fewer prostomal teeth. The new species also shows affinities with Rhabdochona paski Baylis 1928 and Rhabdochona congolensis Campana-Rouget 1961, but differs from the first-named species in that it has shorter spicules and fewer precloacal papillae. It differs from the last-named species in the number and arrangement of the labial and cephalic papillae, and the absence of finger-like processes on the tip of the female tail. The subgenus Rhabdochona Moravec 1972 is characterized by the absence of filaments or floats on the mature eggs. These structures are also lacking in the new species, which is therefore described here as Rhabdochona (Rhabdochona) versterae n. sp.The articles have been scanned in colour with a HP Scanjet 5590; 600dpi.
Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Foundation for Research Development.mn201
Timing, forcing and onshore-offshore correlations on the western margin of the British-Irish Ice Sheet
Settle down! Ranging behaviour responses of roe deer to different capture and release methods
16openInternationalInternational coauthor/editorThe fitting of tracking devices to wild animals requires capture and handling which causes stress and can potentially cause injury, behavioural modifications that can affect animal welfare and the output of research. We evaluated post capture and release ranging behaviour responses of roe deer (Capreolus capreolus) for five different capture methods. We analysed the distance from the centre of gravity and between successive locations, using data from 14 different study sites within the EURODEER collaborative project. Independently of the capture method, we observed a shorter distance between successive locations and contextual shift away from the home range centre of gravity after the capture and release event. However, individuals converged towards the average behaviour within a relatively short space of time (between 10 days and one month). If researchers investigate questions based on the distance between successive locations of the home range, we recommend (1) initial investigation to establish when the animals start to behave normally again or (2) not using the first two to three weeks of data for their analysis. We also encourage researchers to continually adapt methods to minimize stress and prioritize animal welfare wherever possible, according to the Refinement of the Three R’sopenBergvall, Ulrika A; Morellet, Nicolas; Kjellander, Petter; Rauset, Geir R; Groeve, Johannes De; Borowik, Tomasz; Brieger, Falko; Gehr, Benedikt; Heurich, Marco; Hewison, A J Mark; Kröschel, Max; Pellerin, Maryline; Saïd, Sonia; Soennichsen, Leif; Sunde, Peter; Cagnacci, FrancescaBergvall, U.A.; Morellet, N.; Kjellander, P.; Rauset, G.R.; Groeve, J.D.; Borowik, T.; Brieger, F.; Gehr, B.; Heurich, M.; Hewison, A.J.M.; Kröschel, M.; Pellerin, M.; Saïd, S.; Soennichsen, L.; Sunde, P.; Cagnacci, F
Settle Down! Ranging Behaviour Responses of Roe Deer to Different Capture and Release Methods
Simple Summary The study of animal movement in wild, free ranging species is fundamental for advancing knowledge on ecosystem relationships and for conservation. The deployment of bio-logging devices to this purpose (often GPS-collars in large mammals) requires relatively invasive procedures, such as capture, handling and release. Capture and manipulation cause behavioural modifications that are largely understudied in wild species and may affect both the welfare of animals and the output of the studies. We evaluated post capture and release ranging behaviour responses of a small deer species (roe deer Capreolus capreolus) for five different capture methods across 14 study sites within the EURODEER collaborative project. Roe deer showed modifications in their movement behaviour, independently of the capture method. However, individuals recovered rapidly, converging towards the average behaviour within a relatively short interval of time (between 10 days and one month), demonstrating a general resilience to such stressful events. We encourage researchers to continually adapt capture and handling methods so as to minimize stress and prioritize animal welfare. The fitting of tracking devices to wild animals requires capture and handling which causes stress and can potentially cause injury, behavioural modifications that can affect animal welfare and the output of research. We evaluated post capture and release ranging behaviour responses of roe deer (Capreolus capreolus) for five different capture methods. We analysed the distance from the centre of gravity and between successive locations, using data from 14 different study sites within the EURODEER collaborative project. Independently of the capture method, we observed a shorter distance between successive locations and contextual shift away from the home range centre of gravity after the capture and release event. However, individuals converged towards the average behaviour within a relatively short space of time (between 10 days and one month). If researchers investigate questions based on the distance between successive locations of the home range, we recommend (1) initial investigation to establish when the animals start to behave normally again or (2) not using the first two to three weeks of data for their analysis. We also encourage researchers to continually adapt methods to minimize stress and prioritize animal welfare wherever possible, according to the Refinement of the Three R's
Large herbivore migration plasticity along environmental gradients in Europe: life-history traits modulate forage effects
The most common framework under which ungulate migration is studied predicts that it is driven by spatio–temporal variation in plant phenology, yet other hypotheses may explain differences within and between species. To disentangle more complex patterns than those based on single species/ single populations, we quantified migration vari-ability using two sympatric ungulate species differing in their foraging strategy, mating system and physiological constraints due to body size. We related observed variation to a set of hypotheses. We used GPS-collar data from 537 individuals in 10 roe Capreolus capreolus and 12 red deer Cervus elaphus populations spanning environmental gra-dients across Europe to assess variation in migration propensity, distance and tim-ing. Using time-to-event models, we explored how the probability of migration varied in relation to sex, landscape (e.g. topography, forest cover) and temporally-varying environmental factors (e.g. plant green-up, snow cover). Migration propensity varied across study areas. Red deer were, on average, three times more migratory than roe deer (56% versus 18%). This relationship was mainly driven by red deer males which were twice as migratory as females (82% versus 38%). The probability of roe deer migration was similar between sexes. Roe deer (both sexes) migrated earliest in spring. While territorial male roe deer migrated last in autumn, male and female red deer migrated around the same time in autumn, likely due to their polygynous mating system. Plant productivity determined the onset of spring migration in both species, but if plant productivity on winter ranges was sufficiently high, roe deer were less likely to leave. In autumn, migration coincided with reduced plant productivity for both species. This relationship was stronger for red deer. Our results confirm that ungulate migration is influenced by plant phenology, but in a novel way, that these effects appear to be modulated by species-specific traits, especially mating strategies.publishedVersio
PENGARUH KETERAMPILAN KERJA TERHADAP PRODUKTIVITAS KERJA ARSIPARIS BAPUSIPDA SE-BANDUNG RAYA
Penelitian ini dilakukan di Badan Perpustakaan dan Kearsipan Daerah (BAPUSIPDA) yang ada di sekitar Bandung raya. Penelitian ini mengkaji tentang rendahnya produktivitas kerja arsiparis Bapusipda se-Bandung raya yang diduga disebabkan oleh kurangnya tingkat keterampilan kerja para arsiparis. Metode yang digunakan dalam penelitian ini adalah metode survey eksplanasi, dimana data dikumpulkan dengan menyebarkan angket yang dikembangkan dengan menggunakan model skala likert pada 31 pegawai arsiparis di Bapusipda se-Bandung raya yang diambil sebagai sampel. Data yang terkumpul dalam penelitian ini diuji dengan menggunakan uji regresi linier sederhana. Hasil penelitian menunjukkan bahwa: (1) tingkat keterampilan kerja arsiparis berada pada kategori sedang; (2) tingkat produktivitas kerja arsiparis berada pada kategori cukup; (3) terdapat pengaruh yang sangat kuat dari keterampilan kerja terhadap produktivitas kerja arsiparis di Bapusipda se-Bandung raya. Penelitian ini menyarankan agar pihak Bapusipda memberikan dorongan motivasi yang lebih kepada para pegawai dengan cara memberikan penghargaan dan pengakuan yang tepat dan wajar kepada pegawai atas prestasi kerja yang telah dicapainya. Selain itu, pihak Bapusipda seyoganya mengadakan kegiatan pendidikan dan pelatihan dengan intensitas yang lebih tinggi, agar profesionalisme dan produktivitas kerja para arsiparis meningkat.
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This research was conducted in Agency for Library and Archives (henceforth, BAPUSIPDA). It investigates the low productivity of the archivists in the institution, which was assumed to have been caused by a lack of work skills. This research adopts survey-explanatory method, where data were collected by distributing a set of questionnaires using Likert scale to a sample of 36 archivists in BAPUSIPDA. The collected data were analyzed using simple linear regression. The results show that: (1) the level of archivists’ work skills was at the medium category; (2) the level of productivity of the archivists was at the moderate category; and (3) there was quite significant influence of work skills on work productivity of the archivists at BAPUSIPDA. This study recommends that BAPUSIPDA should further motivate the employees by giving adequate and appropriate rewards and recognition for their work achievements. In addition, BAPUSIPDA should also provide more intensive inservice educational activities and training in order to develop the archivists’ professionalism and work productivity
Helminths of the Lizard Salvator merianae (Squamata, Teiidae) in the Caatinga, Northeastern Brazil
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