نتایج جستجو برای: p pusillus
تعداد نتایج: 1270035 فیلتر نتایج به سال:
Mesacanthus is a common and speciose genus of acanthodian fish from Lower Old Red Sandstone and Middle Old Red Sandstone assemblages (representing the Lower Devonian and Middle Devonian respectively) and is well represented in many palaeoichthyology collections in the UK. Based upon descriptions given during the 19th century, specimens of the genus Mesacanthus from the Orcadian Basin and Midlan...
This study aimed to investigate the infection status, worm development, and phylogenetic characteristics of the intestinal trematode, Stellantchasmus falcatus. The metacercariae of S. falcatus were detected only in the half-beak (Dermogenus pusillus) out of the 4 fish species examined. Their prevalence was 90.0%, and the intensity of infection was 919 metacercariae on average. Worms were recove...
مقدمه: گونه‌های مختلف جنسHyoscyamus منبع غنی از تروپان آلکالوئیدها بویژه هیوسیامین و اسکوپولامین هستند. این ترکیبات از نظر دارویی جزء تروپان آلکالوئیدهای مهم هستند که به طور منحصر به فرد توسط گیاهان تولید می‌شوند. هدف: بررسی میزان تروپان آلکالوئیدهای هیوسیامین و اسکوپولامین در اندام‌های زیرزمینی و هوایی گونه‌های جنس بنگ‌دانه شامل گونه‌های H. kotschyanus ، H. squarrosus، H. pusillus، H. k...
AROMATICINE (SYSTEMATIC NAME: 4a,8-dimethyl-3-methyl-ene-3,3a,4,4a,7a,8,9,9a-octa-hydro-azuleno[6,5-b]furan-2,5-dione), C(15)H(18)O(3), is a natural lactone isolated from Amblyopappus pusillus. The mol-ecular structure and conformation agree with the results of Romo, Joseph-Nathan & Díaz [(1964 ▶). Tetra-hedron, 20, 79-85]. The fused-ring system contains a seven-membered ring in a twist-boat co...
BACKGROUND ARGOS satellite telemetry is one of the most widely used methods to track the movements of free-ranging marine and terrestrial animals and is fundamental to studies of foraging ecology, migratory behavior and habitat-use. ARGOS location estimates do not include complete error estimations, and for many marine organisms, the most commonly acquired locations (Location Class 0, A, B, or ...
Hookworms of the genus Uncinaria have been widely reported from juvenile pinnipeds, however investigations of their systematics has been limited, with only two species described, Uncinaria lucasi from northern fur seals (Callorhinus ursinus) and Uncinaria hamiltoni from South American sea lions (Otaria flavescens). Hookworms were sampled from these hosts and seven additional species including S...
Red-fronted Tinkerbird Pogoniulus pusillus (Dumont, 1816) presently comprises three recognised subspecies, of which two are found in East Africa and one occurs disjunctly southern Africa. Based on their respective distributions phenotypic differences, a taxonomic reassessment the species is warranted. We performed phylogenetic reconstruction using mitochondrial genes ATPase 6/8 based 33 samples...
Kelelawar memiliki berbagai peran penting baik secara ekologis maupun ekonomis yaitu dalam pengendalian hama, siklus nutrien, pollinator, dan penghasil guano. Namun, kelelawar mengalami ancaman kepunahan yang disebabkan karena kerusakan lingkungan perburuan liar, sehingga upaya konservasi sangatlah penting. Upaya ini dapat dilakukan melalui pendekatan studi struktur histologis lidah untuk memah...
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