The white rhino is a keystone species and an ecosystem engineer. Though there have been conservation efforts to protect this species, the current red list status of the white rhino is 'Nearly threatened'. The biggest threat that rhinos are facing nowadays is poaching for theirhorns. The rhino population …

Coral reefs have been in decline over the past decades. This has greatly increased the need for restorative measures. The islands of Saba and St. Eustatius, two special Dutch municipalities in the Dutch Caribbean, are not exempt to this decline. The Saba Conservation Foundation and St. Eustatius National …

Bryophytes are small, haploid, non-vascular plants, which can be divided in three distinct phyla; the mosses (Musci), the liverworts (Hepaticae) and the hornworts (Anthocerotae) (Gradstein & Melick, 1996), (Touw, Kruijer, & Stech, 2016). They are valuable indicators of environmental chance, due to the …

Het aantal genetisch zuivere Antilliaanse leguanen is aan het verminderen. Het belang om de Antilliaanse leguaan op St. Eustatius zuiver te houden, wordt zeer groot geacht. Daarom dienen oplossingen te worden geformuleerd om beperkende bedreigingen te reduceren. Om deze oplossingen te formuleren diende …

In many countries the Eurasian otter (Lutra lutra) is extinct or numbers are declining; resulting in a classification as “near threatened” on the IUCN’s Red List. In one-third of the European countries, however, conservation efforts, enabled the return of the species or the improvement of weakened populations. …

As part of the “Ecological main structure” the province of Gelderland strives to make the migration for ungulates possible on the Veluwe. Two wildlife crossings have been build, but are not yet operational because the fence around the National Park Hoge Veluwe is still in place. The fence will be lowered …

In het Nationaal Park zijn verschillende gebieden aangewezen waar voor verstoringsgevoelige soorten rust en ruimte moeten kunnen vinden om duurzame populaties te ontwikkelen. Twee van deze gebieden worden in dit onderzoek behandeld: het Leersumse Veld en de Amerongse Berg. Van deze gebieden wordt in …