Halophila stipulacea is a small tropical seagrass species. It is the dominant seagrass species in the Gulf of Aqaba (GoA; northern Red Sea), where it grows in both shallow and deep environments (1-50 m depth). Native to the Red Sea, Persian Gulf, and Indian Ocean, this species has invaded the...

The occurrence of the exotic "granulate ambrosia beetle" Xylosandrus crassiusculus (Motschulsky) in Argentina and Uruguay is reported for the first time, documenting expansion in South America. Morphological characters are provided to allow distinction of this species from other similar ambrosia...

Invasive grass weeds reduce farm productivity, threaten biodiversity, and increase weed control costs. Identification of invasive grasses from native grasses has generally relied on the morphological examination of grass floral material. DNA barcoding may provide an alternative means to identify...

Bidens frondosa is a new invasive species in China. However, the mechanisms underlying its invasiveness are still not understood. This study compared the new invader with its invasive congener, Bidens pilosa, and two native congeners, Bidens biternata and Bidens tripartita, in terms of their...

Several permanent populations of Thrips hawiiensis (Morgan) were discovered outdoors for the first time in 2015, in different sites in Italy. The species widely distributed and common in tropical countries is now recorded from three European countries: France, Spain and Italy. It is a phytophagous...

Japanese flower thrips (Thrips setosus Moulton, 1928) (Thysanoptera: Thripidae) was found in Croatia in May 2016 on potted hydrangea plants (Hydrangea spp.) originating from domestic production. It was found in the open, in a nursery in Turanj (N 43°58′18.5″E 15°25′1.5″). This is the first record...

The plum seed wasp, Eurytoma schreineri Schr. (Schreiner, 1908) is non-native species insect for Bulgarian fauna. This species was first recorded in Bulgaria in 2013, in the regions Dobrich and Silistra, in the northeastern part of the country. E. schreineri is oligophagous. The larva feeds in the...

Gibel carp is a very successful invasive fish species in the waters of Georgian inland and the only fish species in Lake Madatapa. However, almost nothing is known about its biology and morpho-ecological peculiarities at the national level and even the distribution data is not documented. For the...

Background Aedes (Finlaya) koreicus (Edwards) is a mosquito that has recently entered Europe from Asia. This species is considered a potential threat to newly colonized territories, but little is known about its capacity to transmit pathogens or ability to compete with native mosquito species. The...

Increased atmospheric carbon dioxide (CO₂) and soil nitrogen (N) may confer competitive advantages to invasive species over native plant species. We conducted a two-way factorial experiment, growing the model invasive plant Arundo donax in CO₂ growth chambers to test how CO₂ and N availability...