Capercaillie Tetrao urogallus - a good candidate for an umbrella species in taiga forests
نویسندگان
چکیده
© WILDLIFE BIOLOGY · 9:4 (2003) Biodiversity concerns are now seen as crucial factors in Finnish forestry, also outside nature reserves, i.e. in commercial forests. Foresters and other people earning their living from forestry are often rural people, and hunting is their axiomatic activity or has been a hobby since their youth. This is perhaps why forest professionals in Finland have always been very much aware of the problems involved in game management and game reCapercaillie Tetrao urogallus a good candidate for an umbrella species in taiga forests
منابع مشابه
Genetic evidence of capercaillie Tetrao urogallus dispersal sources and sinks in the Alps
© WILDLIFE BIOLOGY · 9:4 (2003) In landscapes altered by human activities, many species are restricted to small patches of habitat. Species that were once common have decreased both in distribution and density, and many have become extinct (Ceballos & Ehrlich 2002), mainly due to habitat deterioration, loss and fragmentation (Hilton-Taylor 2000). Previously contiguous populations have been turn...
متن کاملComparative Examination of Capercaillie (Tetrao urogallus L.) Behaviour Responses and Semen Quality to Two Methods of Semen Collection
Artificial insemination (AI) is very helpful in solving the reproductive and biodiversity problems observed in small, closed avian populations. The successful production of fertilized eggs using AI is dependent on the collection of good quality semen. Two methods of male sexual stimulation and semen collection from captive kept capercaillie (Tetrao urogallus L.), one of the most seriously endan...
متن کاملMinimum viable population size of capercaillie Tetrao urogallus: results from a stochastic model
© WILDLIFE BIOLOGY · 6:4 (2000) Even if the mean rate of population growth is positive, populations are in danger of becoming extinct if they are too small to buffer environmental and demographic fluctuations. But how small is 'too small'? Answering this question is important to guide management decisions in fragmented landscapes. Therefore, a major task of conservation biology is to determine ...
متن کاملA model for evaluating the 'habitat potential' of a landscape for capercaillie Tetrao urogallus: a tool for conservation planning
Most habitat models developed for defining priority conservation sites target areas currently exhibiting suitable habitat conditions. For species whose habitats have been altered by land use practices, these models may fail to identify sites with the potential of producing suitable habitats, if management practices were modified. Using capercaillie Tetrao urogallus as an example, we propose a m...
متن کاملEstimating Population Size for Capercaillie (Tetrao urogallus L.) with Spatial Capture-Recapture Models Based on Genotypes from One Field Sample
We conducted a survey of an endangered and cryptic forest grouse, the capercaillie Tetrao urogallus, based on droppings collected on two sampling occasions in eight forest fragments in central Switzerland in early spring 2009. We used genetic analyses to sex and individually identify birds. We estimated sex-dependent detection probabilities and population size using a modern spatial capture-rec...
متن کامل