Viola sororia Willd. (Violaceae): nova strana vrsta u flori Bosne i Hercegovine

During April 2018, while botanizing in the city of Sarajevo, the authors discovered a species of violet new to the flora of Bosnia and Herzegovina. Viola sororia is native to North America but it has been introduced to some areas beyond its natural range. The paper presents a short morphological description and photograph of the new alien species for Bosnia and Herzegovina, as well as the distribution of the taxon.Prilikom botaniziranja u gradu Sarajevu tijekom travnja 2018. zabilježena je vrsta ljubičice koja je nova za floru Bosne i Hercegovine. Viola sororia je autohtona za područje Sjeverne Amerike, ali je unešena u neka područja izvan prirodnog areala. U radu se donosi kratak opis morfoloških karakteristika vrste, fotografija kao i karta distribucije

NATURA 2000 U BOSNI I HERCEGOVINI: DOKLE SMO STIGLI?

Rad razmatra problematiku ispunjavanja obaveza Bosne i Hercegovine u oblasti zaštite prirode na njenomevropskom putu. Naročita pažnja pridaje se analizi rezultata četiri do sada sprovedena projektakoja se tiču procesa uspostavljanja evropske ekološke mreže Natura 2000 u BiH. Na bazi svih relevantnihnaučnih i stručnih podataka rad daje reviziju referentne liste vrsta sa Aneksa II Direktive o staništima iAneksa I Direktive o pticama, kao i reviziju liste staništa sa Aneksa I Direktive o staništima, značajnih zaizdvajanje budućih Natura 2000 područja na teritoriji države. Biljna vrsta Himantoglossum adriaticumBaumann, značajna za Evropsku uniju, prikazuje se kao nova za Bosnu i Hercegovinu. Predložena revidiranareferentna lista vrsta broji 238 vrsta od čega 11 nije pominjano ni u jednoj dosadašnjoj referentnojlisti, a neki ranije razmatrani taksoni i stanišni tipovi su izbrisani sa liste. Na kraju, rad ustanovljava nekenedostatke prijedloga mreže Natura 2000 u BiH i daje glavne smjernice kako bi ovaj važan proces trebaobiti nastavljen

Local colonisations and extinctions of European birds are poorly explained by changes in climate suitability

Climate change has been associated with both latitudinal and elevational shifts in species' ranges. The extent, however, to which climate change has driven recent range shifts alongside other putative drivers remains uncertain. Here, we use the changing distributions of 378 European breeding bird species over 30 years to explore the putative drivers of recent range dynamics, considering the effects of climate, land cover, other environmental variables, and species' traits on the probability of local colonisation and extinction. On average, species shifted their ranges by 2.4 km/year. These shifts, however, were significantly different from expectations due to changing climate and land cover. We found that local colonisation and extinction events were influenced primarily by initial climate conditions and by species' range traits. By contrast, changes in climate suitability over the period were less important. This highlights the limitations of using only climate and land cover when projecting future changes in species' ranges and emphasises the need for integrative, multi-predictor approaches for more robust forecasting.</p

Local colonisations and extinctions of European birds are poorly explained by changes in climate suitability

Abstract Climate change has been associated with both latitudinal and elevational shifts in species’ ranges. The extent, however, to which climate change has driven recent range shifts alongside other putative drivers remains uncertain. Here, we use the changing distributions of 378 European breeding bird species over 30 years to explore the putative drivers of recent range dynamics, considering the effects of climate, land cover, other environmental variables, and species’ traits on the probability of local colonisation and extinction. On average, species shifted their ranges by 2.4 km/year. These shifts, however, were significantly different from expectations due to changing climate and land cover. We found that local colonisation and extinction events were influenced primarily by initial climate conditions and by species’ range traits. By contrast, changes in climate suitability over the period were less important. This highlights the limitations of using only climate and land cover when projecting future changes in species’ ranges and emphasises the need for integrative, multi-predictor approaches for more robust forecasting