В данной статье приводится описание опыта организации территориальной охраны популяции вида растений, занесенного в Красную книгу Тверской области, - Келерии Делявиня, произрастающей на территории деревни Видогощи Каблуковском сельском поселении Калининского муниципального района области. Организация определяется видовыми экологическими и биологическими особенностями ограничивается социально-эк...

Adult specimens of Trichuris sp. collected from crested porcupines (Hystrix cristata) Italy were characterized using an integrative taxonomic approach involving morphological and molecular tools. The features this compared to data already available for spp. Hystrix sp., revealing diagnostic traits, such as spicule length in males or vulva shape females, which distinguish the other species. Evid...

To evaluate transmission dynamics, we exposed 25 bird species to West Nile virus (WNV) by infectious mosquito bite. We monitored viremia titers, clinical outcome, WNV shedding (cloacal and oral), seroconversion, virus persistence in organs, and susceptibility to oral and contact transmission. Passeriform and charadriiform birds were more reservoir competent (a derivation of viremia data) than o...

Fresh leaves, stems and roots of Cachrys cristata, were subjected to hydrodistillation and the oils obtained were analyzed by means of GC and GC-MS. Sixty eight constituents were in total identified, with (Z)β-ocimene (44.2% and 30.5%) dominating in leaves and stems oils, while the major metabolite of the roots was found to be p-tolualdehyde (39.6%), followed by (Z)-β-ocimene (15.2%). The micro...

The VecTest antigen-capture assay for West Nile virus was performed on oral and tissue swabs from dead birds in New York State from April 2003 through July 2004. Results were compared with those from real-time reverse transcriptase-polymerase chain reaction of kidney or brain. Oral VecTest sensitivity is adequate for surveillance in American Crows (Corvus brachyrhynchos) (87%), Blue Jays (Cyano...

It was observed that Leidynema appendiculata (Leidy, 1850) and Hammerschmidtiella diesingi (Hammerschmidt, 1838; Chitwood, 1932), which are nematodes parasitic in the hind-gut of Blatta orientalis L., could survive in the hind-gut when the cockroach moulted and it was decided to see what effect moulting of the cockroach had upon the nematodes. In moulting cockroaches there is a certain amount o...