zoekresultaten

Lutra 54(1)_Meerburg_Editorial_2011

Panta rhei Panta rhei is the ancient Greek expression for ‘everything flows.’ It is a valuable aphorism for all aspects of life. The famous Greek philosopher Heraclitus (who lived around 600 B.C.) is said to have remarked: “Only change itself is a real, constant and eternal flux, like the continuous

Lutra 54(1)_Van De Sijpe_2011

Differentiating the echolocation calls of Daubenton’s bats, pond bats and long-fingered bats in natural flight conditions Echolocation calls of the three European species of trawling bats were studied in their natural habitats, during hunting, commuting and swarming activities. Daubenton’s bats (

Lutra 54(2)_Camphuysen & Krop_2011

Maternal care, calf-training and site fidelity in a wild harbour porpoise in the North Sea Direct, undisturbed observations of interactions of mother and offspring in harbour porpoises ( Phocoena phocoena) in the wild are extremely rare. Because harbour porpoises are seldom held and hardly breed in

Lutra 54(2)_Cornelis_2011

First recording of the soprano pipistrelle ( Pipistrellus pygmaeus) in the Netherlands In the early 1990s, the soprano pipistrelle ( Pipistrellus pygmaeus) was recognised as a separate (cryptic) species. It is now considered to be widespread in Europe, but was unknown in the Benelux countries until

Lutra 54(2)_Editorial_Bekker_2011

The mammalogist’s toolkit The use of tools by mammals is an exceptional phenomenon (van der Grift 2010). By contrast Homo sapiens use tools for most of their activities. But what tools do we need for scientific mammal research? A brief historical review will help put this question in perspective

Lutra 54(2)_Grol et al_2011

The influence of a Christmas market on hibernating bats in a man-made limestone cave It is generally acknowledged that human activity in bat hibernacula can disturb hibernating bats and that such activities need to be appropriately managed. The intensive commercial exploitation of limestone

Lutra 54(2)_Van Den Berge & Gouwy_2011

Hot spot for pine marten ( Martes martes) and first record of a natal den in Flanders (Belgium) From 2000 to 2011, pine marten ( Martes martes) reproduction has been regularly recorded in a small forest complex of about 250 hectares in the north of the Province of East Flanders (Flanders, Belgium)

Lutra 54(2)_van den Brink et al_2011

Estimating population differentiation between isolated root vole ( Microtus oeconomus) populations in the Netherlands using geometric morphometrics We investigated morphological differentiation in threatened populations of the root vole subspecies Microtus oeconomus arenicola, measured by using

Lutra 55(1)_Chanin & Gubert_2012

Common dormouse ( Muscardinus avellanarius) movements in a landscape fragmented by roads The common dormouse ( Muscardinus avellanarius) is widespread in Europe but populations have declined in some countries as a result of habitat loss and fragmentation. A population of common dormice living beside

Lutra 55(1)_de Vooys et al_2012

Analyses of four centuries of bounty hunting on seals in Zeeland, SW-Netherlands For centuries, bounty hunts for seals ( Phoca vitulina) were conducted in the Province of Zeeland (SWNetherlands). Records of bounties paid for seals hunted in that area have been archived by the province of Zeeland

Lutra 55(1)_Haigh et al_2012

Courtship behaviour of western hedgehogs ( Erinaceus europaeus) in a rural landscape in Ireland and the first appearance of offspring A study was conducted to investigate the timing of the breeding season of western hedgehogs ( Erinaceus europaeus) in a rural landscape in Ireland, their courtship

Lutra 55(1)_Kuipers et al_2012

The diet of the garden dormouse ( Eliomys quercinus) in the Netherlands in summer and autumn The food of the last remaining population of garden dormouse ( Eliomys quercinus) in the Netherlands is studied by means of analysing faecal samples, collected in the summer and autumn of the year 2010. In

Lutra 55(1)_Smeenk_2012

Book review: The harbour porpoise in the Netherlands: will it get the care it deserves? An urgent conservation plan Conservation plan for the Harbour Porpoise Phocoena phocoena in The Netherlands: towards a favourable conservation status. Kees (C.J.) Camphuysen & Marije L. Siemensma 2011. NIOZ

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