False indigo (Amorpha fruticosa L.) is an invasive exotic plant introduced to Europe in the early eighteenth century. Its spread has been rapid, particularly in disturbed wetland habitats, where it ...forms dense impermeable monospecific stands and modifies habitat conditions. The impact of A. fruticosa on native plant communities has been well analyzed, however knowledge concerning the possible effects on soil invertebrates and particularly carabid beetles is completely lacking. This study analyzed the impact of an A. fruticosa invasion on carabid beetles and other soil invertebrates. Soil fauna was sampled by pitfall traps at natural habitats, initially colonized by A. fruticosa, and habitats largely invaded by A. fruticosa. In total 2,613 carabid beetles belonging to 50 species and 72,166 soil invertebrates were collected. The invasion of A. fruticosa strongly affected the carabid beetle species composition, which clearly differed between all studied sites. Widespread euritopic carabid beetle species showed positive responses to A. fruticosa invasion, while the activity density of open habitat species strongly declined. Mean individual biomass was significantly higher at invaded sites due to increased incidence of large carabids (genus Carabus Linné, 1758). Carabid beetle activity density and abundance of soil invertebrates were considerably higher at invaded sites than in natural sites. Conversely, the impact of A. fruticosa on carabid beetle species richness and diversity was less pronounced, most likely due to immigration from adjacent habitats. Changes in carabid beetle species composition and abundance of soil invertebrates were most likely due to changes in vegetation structure and microclimate. The results suggest that A. fruticosa invasion considerably affected carabid beetles, an insect group that is only indirectly related to plant composition. Therefore, severe future changes can be expected in invertebrate groups that are closely related to plant composition, since A. fruticosa cannot be completely removed from the habitat and covers relatively large areas.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Studies of the ornithofauna of the southern part of Velebit have been running continuously since 1984. Part of the data is collected by the observation of the birds in various parts of the Paklenica ...National Park, as well as in parts of southern Velebit, from Veliko Libinje to Tulove Grede, Prezid and Crnopac. The area of central Velebit was studied from Bačić Kosa to Alaginac and Bačić Kuk in 2003, and occasionally in 2011 and 2012. The area of northern Velebit was visited around Zavižan, the botanical garden, part of the Premužićeva trail to Rossijeva Koliba,Lomska Duliba and Štirovača during 1988 and occasionally from 2007-2011. Birds were recorded at times of nesting, spring and autumn migrations as well as in winter. To date 271 bird species have been noted on Velebit.165 species inhabit within the boundaries of the Paklenica National Park, 101 of which nest there. In the area of the Northern Velebit National Park 110 species have been noted. Today it can safely be said that 127 bird species nest on the Velebit mountain. This contribution contains a fulllist of the noted bird species, the category of endangerment, seasonal status, as well as an estimated number of nesting birds, i.e. migrations.
A juvenile male of porbeagle (Lamna nasus) was caught in waters off Piran (Slovenia, northern Adriatic) on December 22, 2015. The specimen was accurately measured and weighed. Cephalopods and fish ...remains were found in its stomach contents. This is the first record of a porbeagle in the waters of Slovenia and in the Gulf of Trieste, and one of the few records up to date reported in the northern Adriatic Sea. The presence of this juvenile specimen arises a question whether the Adriatic Sea is a reproductive ground of this species. According to an older record from 1910, a female porbeagle with four embryos was caught on Ugljan Island, confirming the fact that porbeagles reproduced at least in the past in the Adriatic Sea.Original Abstract: Nedorasla jedinka muzjaka kucine (Lamna nasus) uhvacena je u vodama Piranskog zaljeva (Slovenija, sjeverni Jadran) 22. prosinca 2015. Primjerak je izmjeren i izvagan. U sadrzaju zeluca pronadjeni su glavonosci i ostaci riba. Ovo je prvi zapis o kucini u trscanskom zaljevu, i jedan od rijetkih zapisa prijavljenih u sjevernom Jadranskom moru. Prisutnost ovog nedoraslog muzjaka povlaci pitanje da li je podrucje mrijesta ove vrste Jadransko more. Prema starijem zapisu iz 1910. kod otoka Ugljana je uhvacena zenka psine kucine s cetiri embrija. Time se potvrdila cinjenica da se ova vrsta barem u proslosti razmnozavala u Jadranskom moru.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Abstract
Wallcreeper Tichodroma muraria was observed during cold winters in different parts of Croatia, along the Adriatic coast, on islands as well as inland. Their origin remains unknown, but they ...may belong to the population nesting in the Alps or in Dinaric parts of Bosnia and Herzegovina and Montenegro. The overwintering along the Adriatic coast was explored during field observations, but also from the literature and museum data. The field investigations were carried out in Istria, North Dalmatia, Paklenica NP, Kornati NP and central Dalmatia, Krka NP. In total, 96 observations were made: 35 specimens from museum collections and literature and 61 during field research. The Wallcreeper was observed in Velika and Mala Paklenica canyons in Paklenica NP during cold winters, but not during milder winters. In the Paklenica NP, the earliest individuals were observed on 10 Oct and the latest on 28 Apr. On the complete east Adriatic coast and in Croatian inland, the earliest record was made on 6 Sep and the latest on 2 May. There are 5-10 individuals overwintering in Paklenica National Park.
Here we present new records of two rare tiger beetles in Croatia, their distribution and habitat selection. Cylindera trisignata trisignata (Dejean, 1822) was recorded in Croatia,for the first time ...in 115 years, on Mljet Island in Blace Bay. Specimens were collected on a sandy beach, 5 - 6 m from the water’s edge sea coast. Cylindera arenaria viennensis (Schrank, 1781) was found in Croatia, for the first time in 67 years, in Podravina, in Kloštar Podravski. It was collected in an area previously exploited for sand mining, which was later abandoned and left to the natural succession. Both species were recorded in rare natural or semi-natural sandy habitat types that are endangered in Croatia. The survival of these and other psammophilous species depends on the suitable management and protection of sandy habitats.
Ovdje predstavljamo nove nalaze dviju rijetkih vrsta hitri u Hrvatskoj, njihovu rasprostranjenost i
opis staništa. Cylindera trisignata trisignata (Dejean, 1822) je zabilježena u Hrvatskoj, nakon 115 ...godina,
na otoku Mljetu u zaljevu Blace. Jedinke su sakupljene na pješčanoj plaži, na udaljenosti od 5 do 6 m
od mora. Cylindera arenaria viennensis (Schrank, 1781) pronađena je u Hrvatskoj, nakon 67 godina, u
Podravini u Kloštru Podravskom. Sakupljena je na području koje se prije koristilo za vađenje pijeska i
potom prepušteno prirodnoj sukcesiji. Obje vrste hitri zabilježene su na rijetkim prirodnim i poluprirodnim pješčanim stanišnim tipovima koji su ugroženi u Hrvatskoj. Opstanak ovih i drugih psamofilnih
vrsta ovisi o odgovarajućem upravljanju i zaštiti tih staništa.
Vrsta Apristus europaeus je zabilježena po prvi put u Hrvatskoj. Pronađena je u suhom riječnom koritu povremene rijeke Krčić (Dalmatinska zagora), smještene podno Dinare. Ovaj nalaz predstavlja ...najjugoistočniju granicu rasprostranjenja ove vrste u Europi. Vrsta Apristus europaeus sakupljena je pomoću lovnih posuda u srpnju 2014. Supstrat se sastojao od velikog kamenja, bez mahovine ili algi. Mikroklimatski uvjeti su bili nepovoljni za beskralješnjake tla, budući da su suha riječna korita izložena intenzivnom sunčevom zračenju i vjetru. Rezultati ukazuju da A. europaeus može brzo kolonizirati nova nestabilna staništa, što sugerira da ima visoku mogućnost disperzije. Međutim, ovim istraživanjem dovodi se u pitanje stanišna preferencija vrste A. europaeus, koja je u prethodnim istraživanjima karakterizirana kao stenovalentna higrofilna vrsta koja nastanjuje obale tekućica.
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