Katja Poboljšaj

• Center za kartografijo favne in flore/Centre for Cartography of Fauna and Flora

Quantifying rarity at the intraspecific level is an important task for conservation biologists because rare phenotypes have a higher extinction risk than common ones. However, quantitative assessments of rarity are lacking at this level, preventing to adequately protect rare and endangered variants that are part of the pool of common species. Our a...

Roads exert multiple effects on wildlife, from animal mortality, habitat and population fragmentation, to modification of animal reproductive behaviour. Amphibians are the most frequently road-killed animal group. Many studies have attempted to analyse the factors driving amphibian casualties on roads, but these factors are limited to the roads the...

The American bullfrog Lithobates catesbeianus is one of the 100 worst alien species in the world. It has been introduced to several European countries. During our field search activities in May 2014 and June 2015, a male bullfrog advertisement call was heard at Fiesa Lakes in Slovenia. On September 2015, a male specimen of the American bullfrog was...

In pristine environments, riparian ecosystems are continuously distributed along large river flows. As ecotones, they harbor more species diversity than ecosystems bordering them from both sides. Along the Sava River flow, riparian ecosystems are discontinuously distributed, being preserved mainly in protected areas of Slovenia, Croatia, Bosnia and...

After the first confirmed record of the Italian agile frog in the Dragonja River Valley, a herpetological field survey was organized in 2012 to estimate the species range in this area. We confirmed its reproduction in the Slovenian part of the watersheds of the rivers Dragonja, Mirna and upper part of Riţana. Here we present a preliminary report on...

The accelerating rates of international trade, travel, and transport in the latter half of the twentieth century have led to the progressive mixing of biota from across the world and the number of species introduced to new regions continues to increase. The importance of biogeographic, climatic, economic, and demographic factors as drivers of this...

Recent comprehensive data provided through the DAISIE project (www.europe-aliens.org) have facilitated the development of the first pan-European assessment of the impacts of alien plants, vertebrates, and invertebrates in terrestrial, freshwater, and marine environments on ecosystem services. There are 1094 species with documented ecological impact...

V okviru skupine za dvoživke je bilo med 23. julijem in 2. augustom 1997 na Raziskovalnem taboru študentov biologije Središče ob Dravi ’97 na skupno 68 najdiščih najdenih 12 vrst dvoživk.