Search results for "Danger"
showing 10 items of 264 documents
Distribution, ecology and conservation status of Dionysia involucrata Zaprjag., an endangered endemic of Hissar Mts (Tajikistan, Middle Asia)
2014
<em>Dionysia involucrata</em> Zaprjag. (Primulaceae) is known as critically endangered endemic species of Hissar Mountains in Tajikistan. It is reported from few localities mainly in Varzob River valley and its tributaries. The species inhabits steep or overhanging faces of granite rocks in narrow river gorges. During the research all known populations of <em>D. involucrata</em> were examined in respect of the habitat conditions and species composition of vegetation plots. We analyzed the population extent of the species in its range in Tajikistan and the main threats in order to assess its conservation status. The detrended correspondence analysis was performed on a…
Regulating Internet Trade in CITES Species
2013
International trade in species that are or may be endangered by collection from the wild is regulated under the Convention on International Trade in Endangered Species of wild fauna and flora (CITES) for 176 member States (Parties). Internet commerce is a relatively new route for such trade. In 2007, the CITES Secretariat asked Parties to collect information on internet wildlife trade and report problems and implemented regulations. The reports indicated it was difficult to even approximate the influence of e-commerce on CITES-listed species (CITES Secretariat 2009). We report a case study in which we quantified international transactions over an internet auction site of CITES-listed cacti …
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 w Słowińskim Parku Narodowym
2017
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 należą do wyspecjalizowanych pod względem ekologicznym fitocenoz, występujących w wodach oligotroficznych oraz dystroficznych na podłożu torfowym. Polsce należą do grupy zbiorowisk bardzo słabo zbadanych. W 2014 r. na terenie Słowińskiego Parku Narodowego zbiorowiska z klasy Utricularietea intermedio-minoris zostały stwierdzone w dystroficznym zbiorniku wodnym koło miejscowości Gać. Są to: Sparganietum minimi (współrzędne geograficzne 54°69’05,65’’ N, 17°50’40,42’’ E) oraz Scorpidio-Utricularietum minoris (współrzędne geograficzne 54°69’06,52’’ N, 17°50’50,29’’ E). Akwen, w którym stwierdzono fit…
La rétention de sûreté : la première mesure de sûreté privative de liberté depuis le nouveau Code pénal
2015
The French criminal law is characterised by a willingness to prevent recidivism. To give concrete expression to this will, security measures are implemented among which the secure detention. However, the secure detention is not an ordinary measure and gives rises to many debates which, in fact, take up old and recurrent controversies. This measure is based on the assumption that sexual and/or violent criminals show a disease which may suggest a risk of a second offence. As a result, by considering them as sick persons, the legislator asserts that they can be treated. Accordingly, medical care is advised as the only solution to prevent a second offence. However, this disease itself often ind…
Annales des travaux des auditeurs de l'IHEDN 2008 : "Remilitarisation et dangerosité du monde"
2008
CD rom; International audience
Eresus kollari (Araneae: Eresidae) calls for heathland management
2011
Northwest Europe’s largest heather-dominated sandy habitats are located in the nature reserve Lu¨neburgerHeide, Germany. Yet, even these appear to be losing their ability to support some of their stenotopic species such as theladybird spider, Eresus kollari Rossi 1846, and are thus becoming increasingly important for the preservation of thesespecies. The habitat requirements of this endangered spider species were investigated in order to obtain data that will helpstabilize the last remnants of the species’ population in northwest Germany. Several heathland habitats were surveyed bypitfall trapping during the mate-search period of the males. Two statistical methods were applied: logistic reg…
Quantifying the Indicator Power of an Indicator Species
2009
Biodiversity indicator species are needed for classifying biotopes and sites for conservation, and a number of methods have been developed for determining indicator species for this purpose. Nevertheless, in addition to site classification, there is sometimes a need to define an indicator species that indicates the occurrence of another species. For example, when a species of interest (target species) is difficult to detect or identify, a reliable indicator species can function as a tool that saves time and money. We derived a method that provides a quantitative measure of the indicator power (IP) of an indicator species for the target species or any species assemblage. We calculated the me…
Identifying potential areas of expansion for the endangered brown bear (Ursus arctos) population in the cantabrian mountains (NW Spain)
2019
Many large carnivore populations are expanding into human-modified landscapes and the subsequent increase in coexistence between humans and large carnivores may intensify various types of conflicts. A proactive management approach is critical to successful mitigation of such conflicts. The Cantabrian Mountains in Northern Spain are home to the last remaining native brown bear (Ursus arctos) population of the Iberian Peninsula, which is also amongst the most severely threatened European populations, with an important core group residing in the province of Asturias. There are indications that this small population is demographically expanding its range. The identification of the potential are…
Genetic assessment of spatiotemporal evolutionary relationships and stocking effects in grayling (Thymallus thymallus, Salmonidae)
2002
Domestically reared introduced (or escaped) individuals can have detrimental genetic effects on the indigenous populations into which they are released. Consequently, numerous studies have attempted to estimate whether non-native specimens have contributed to the gene pool of wild populations. So far, the key limiting factor of such studies has been their lack of appropriate baseline genetic material. Here, microsatellite DNA analyses of historical scale samples and contemporary wild and introduced populations were used to assess spatiotemporal population structure and stocking effects among endangered Lake Saimaa (eastern Finland) grayling (Thymallus thymallus, Salmonidae). Significant dec…