zoekresultaten

Lutra 55(1)_Van Den Berge_Editorial_2012

Do right and fear no one For some years now, the European Community has faced very serious financial and economic problems. In this context, there is a drive to cut back on what is seen as unnecessary expenditure. Nature conservation and scientific research on conservation biology do not figure

Lutra 55(1)_Wijsman_2012

The effects of small rodent density fluctuations on the pine marten ( Martes martes) Low mast production leads to winters that are scarce in small rodent prey for pine martens ( Martes martes). As a result, litter size over the years 2005-2011, as studied in 193 marten litters in three areas in the

Lutra 55(2)_Camphuysen_Editorial_2012

Is there a future for (printed) scientific journals? Google this question today and you will get 281 million results returned in 0.22 seconds. That is today’s result; tomorrow there may be millions of hits more to consult. Not so long ago, nobody would have understood the phrase to “Google a

Lutra 55(2)_Fijn et al_2012

Using standardised counting methods for seabirds to monitor marine mammals in the Dutch North Sea from fixed platforms In the period 2003-2011 offshore platforms in the North Sea have been successfully used for ornithological monitoring programs following standardised observation protocols. As most

Lutra 55(2)_Mulder_2012

A review of the ecology of the raccoon dog ( Nyctereutes procyonoides) in Europe The raccoon dog ( Nyctereutes procyonoides) was introduced from East Asia into the former USSR between 1928 and 1957. Since then it has colonised a large part of Europe and is considered an invasive alien species. This

Lutra 55(2)_Verheyen et al_2012

Harbour seals ( Phoca vitulina) in Dutch inland waters: an overview of reported sightings and some first data on diet In the Netherlands, harbour seals ( Phoca vitulina) inhabit all marine waters, including estuaries and the lower tidal parts of rivers. However, by damming most of the inland waters

Lutra 56(1)_Beemster & Vulink_2013

The long-term influence of grazing by livestock on common vole and raptors in man-made wetlands in the Netherlands Several studies have examined the effects of grazing by wild ungulates or livestock on the abundance of small mammals; some studies have also examined the effects on the abundance of

Lutra 56(1)_Boonstra et al_2013

Harbour porpoises ( Phocoena phocoena) in the Marsdiep area, the Netherlands: new investigations in a historical study area The harbour porpoise ( Phocoena phocoena) returned in Dutch waters in the late 20th century after a nearabsence of approximately three decades. Inspired by historical studies

Lutra 56(1)_Geelhoed et al_2013

Abundance of harbour porpoises ( Phocoena phocoena) on the Dutch Continental Shelf, aerial surveys in July 2010-March 2011 The harbour porpoise ( Phocoena phocoena) is the most abundant marine mammal species in Dutch waters. Nevertheless until 2010 abundance estimates for the entire Dutch

Lutra 56(1)_Mulder_2013

The raccoon dog ( Nyctereutes procyonoides) in the Netherlands – its present status and a risk assessment The raccoon dog ( Nyctereutes procyonoides) was introduced from East Asia into the former USSR between 1928 and 1957. Since then it has colonised a large part of Europe and is considered an

Lutra 56(2)_Canters & Verboom_Editorial_2013

Visions of nature For a young child, nature can be exciting, providing endless opportunities to play and discover its diversity. There are many ways to trigger and develop children’s interest in nature. Regular visits to an interesting area, for instance, can spark a familiarity and a growing

Lutra 56(2)_Dekker et al_2013

Habitat use by female Geoffroy’s bats ( Myotis emarginatus) at its two northernmost maternity roosts and the implications for their conservation Geoffroy’s bat ( Myotis emarginatus) has four known breeding colonies in the Netherlands. Two of these are the known most northerly maternity roosts of the

Lutra 56(2)_Gravendeel, de Groot & Kik et al_2013

The first wolf found in the Netherlands in 150 years was the victim of a wildlife crime On July 4th 2013 a dead subadult female wolf-like canid was found by the roadside between Luttelgeest and Marknesse in the Noordoostpolder in the central part of the Netherlands. As the last observations of wild

Lutra 56(2)_Hovens & Rijkers_2013

On the origins of the Exmoor pony: did the wild horse survive in Britain? The Exmoor pony is considered the most primitive horse breed of Great Britain, but not a type of wild horse. In this article we draw upon historical descriptions, the literature on anatomical and morphological characteristics

Lutra 56(2)_Margry_2013_lowres

A new record of taiga shrew ( Sorex isodon Turov, 1924), from Sogn og Fjordane, Norway The taiga shrew ( Sorex isodon) has been known to be present in Norway since 1968, initially in the counties of Troms and Hedmark, and, more recently, in Sogn og Fjordane County. In the summer of 2011 a dead

Lutra 56(2)_van Adrichem et al_2013

Factors influencing the density of the brown rat ( Rattus norvegicus) in and around houses in Amsterdam The current strategy of the pest management department of the Public Health Service in Amsterdam is to identify causal factors in order to reduce the carrying capacity of pest populations and to

Lutra 56(2)_van Boekel_2013

Reducing shrew mortality in Longworth live-traps During a four year field study period, several improvements were made to the method and mechanism of capturing shrews using Longworth live-traps, in order to reduce mortality after capture. The addition of extra food to the traps reduced mortality of

Lutra 57(1)_Bekker et al_2014

First records of predation of grey long-eared bats ( Plecotus austriacus) by the barn owl ( Tyto alba) in the Netherlands The Dutch National Ecological Monitoring scheme (NEM) is analysing owl pellets, predominantly from barn owl ( Tyto alba) in order to monitor small mammals (rodents and shrews)

Lutra 57(1)_Bekker_Editorial_2014

Mind your step! The fourth, and most recent, volume of Wilson & Mittermeier’s Handbook of the mammals of the world (2011a, 2011b, 2013, 2014) was published this year. Each volume has, on average, almost 800 pages, and when turning these pages the reader is overwhelmed by a plethora of insights and

Lutra 57(1)_Bijlsma_2014

Copulatory lock of wild red fox ( Vulpes vulpes) in broad daylight On 1 February 2014, at 9:20 a.m. local time, a male red fox ( Vulpes vulpes) closely trailed a female onto a small heath in Berkenheuvel, western Drenthe, northern Netherlands. It was clearly the bigger mammal, with darker fur and