The results of the census show that the Eastern eggar is well conserved in the park. Following the autumn floods in 2010 and rehabilitation works on the embankments to remove bushes, the abundance of individuals increased again in 2018 to the most abundant population of the species in Slovenia.
The species has good conditions in the park area, although the area of the outer salt marshes is becoming increasingly overgrown with the invasive common reed (Arundo donax), which is increasingly encroaching into the salt marshes and in some places already overgrowing part of the black reed bush, which is the species' main food plant here. The eastern eggar prefers young, vigorous and well-shaded black thorn and hawthorn bushes for oviposition. It is important to thin the shrubs at least every two years, to cut back older shrubs in narrower strips and to leave younger, sunny, not too densely vegetated stands. In dense and old shrubs, females do not lay eggs or only exceptionally do so. It is also necessary to remove taller plants that may overgrow or shade shrubs, especially common reed and in some places reed canary grass. To maintain a viable population of the species, it is necessary to maintain thinned, well-shaded and differently aged shrubs on the part of the embankments where the species is permanently present, in the salt marshes these are mainly the higher outer embankments. The species has good conditions for persistence in the salt marshes, both in terms of insolation and a microclimate that is suitable and has sufficient moisture. In spring, it is warm early for rapid caterpillar development, and in autumn there is sufficient moisture for the butterflies to emerge successfully. There are also many stands of black thorn and hawthorn bushes in which the species can breed. The conservation trend of the species in the Sečovlje salt pans is positive.
*It is considered a qualifying species in favourable conservation status in the Sečovlje salt pans.