In 2003 PI ”NPM” bought a study “Vascular flora of Nature Park Medvednica” from Croatian botanic society (dr. sc. Toni Nikolić) for the purpose of flora inventory-making.

Distribution maps for 16 protected species were given in the form of GIS layer (ArcView) with accompanying attribute tables for localities.

In the study «Vascular flora of Nature Park Medvednica», a total of 1346 taxa are inventoried, (59 subspecies). Out of 20 protected taxa in the area of «NP Medvednica», 2 are mentioned in the literature with unknown localities, and for 2 it is doubtful weather they exist in the area of the Park. Registered are: 14 endemic, 58 cultivated, 29 naturalized and 93 species with different categories of endangerment, of which 6 are critically endangered (CR), 15 endangered (EN), 32 vulnerable (VU), 10 least concerning (LC), 28 low risk (NT) and 2 regionally extinct (RE).

For the purpose of future Management plan, in 2004, PI “NPM” ordered distribution maps of some endangered, endemic, and other important floral taxa (invasive, allergic, thermopile, and some taxa significant to endangered butterfly species) in the form of GIS layer (ArcView) with accompanying attribute tables for localities.

Based on distribution report of selected vascular flora taxa in NPM, grouping of data on localities of endangered and protected floral species is performed in GIS, for the purpose of area analysis for the need of Management plan and Regional plan.

Butterflies are good indicators of balance in nature and level of preservation of certain area. Because of their specific biology they quickly respond to changes in habitat, and are considered good indicators for which they are often used for monitoring, that is systematic observations of environment. For that reason PI ”NPM” ordered «Degree of research of butterfly fauna in Nature Park Medvednica» from Society for nature research in Croatia – Natura (Martina Šašić, B.Sc.).

Based on the overview of literature data, and collections in Croatian Natural History Museum , zero state was determined: 107 species of butterflies with a list of localities, of which 6 are protected and 12 endangered. Literature list is given, and protection measures proposed, as well as further activities that need to be taken.

White throated dipper and wagtails in «Nature Park Medvednica» - CASA, Ornithological Institute (Davor Ćiković, Dragan Radović, Krešimir Mikulić and Sanja Barišić). The purpose of this research was to determine the state of populations of white throated dipper, pied and gray wagtail, to form preconditions for monitoring their populations, and performing the most efficacious protection and adapting Management plan of Nature Park according to demands for protection of researched bird populations on streams of Medvednica.

A total of 38 couples of pied wagtail are distributed on 23 streams, 90 couples of gray wagtail are distributed on 28 streams and 7 couples of white throated dipper are distributed on 7 streams. While both species of wagtail are abundant and widely distributed on Medvednica, and less endangered by possible changes in the ecosystem, white throated dipper population is relatively small and isolated, and therefore very vulnerable. Any type of change, such as change in water quality, change in habitat structure caused by adaptation of a stream (i.e. concreting stream bed), meliorations, felling of trees, construction of roads, waste disposal, etc. can drastically reduce population of white throated dipper on Medvednica, and even endanger the survival of this species in the Park.