In the tubercle of O. cumana of high-virulent populations from Rostov region of Russian Federation some changes were found, which helped to improve the seed productivity and to decrease the development period of fruiting shoots. The maintenance of high level of seed productivity can be realized by...

Invasion of exotic plants is threatening global biodiversity. Bidens pilosa L. var. radiata, a member of Asteraceae, has successfully invaded Taiwan after being introduced to the island. Knowledge of its reproduction is necessary in developing effective ways to control the spread of this plant. The ...

Meloidogyne enterolobii (sin. M. mayaguensis) is a nematode species found in several Brazilian states, parasitizing guavas and other crops, leading to significant economic impacts. This work aimed to evaluate the reaction of twenty-two plant species to M. enterolobii. The experiment was conducted...

We assessed the vulnerability of furbearers in the Clay Belt to climate change. We identified four processes leading to vulnerability: the introduction of southern competitors and pathogens, increased extinction risk of cold-adapted species, selection for early breeding, and reduced synchrony....

Pakistan has introduced several alien exotic fish species e.g. grass carp (Ctenopharyngodon idella), bighead carp, (Hypophthalmichthys nobilis), silver carp, (Hypophthalmichthys molitrix), common carp (Cyprinus carpio), gold fish (Carassius auratus), and three species of tilapia (Oreochromis aureus...

Pumpkinseed (Lepomis gibbosus L. 1758) represents an allochthonous (introduced) fish species in freshwater ecosystems of Europe. It has shown good adaptation to existing ecological conditions in the back and low flow rate waters. The analysis of some ecological characteristics of the samples, taken ...

In the present study changes in ecosystems of the Black Sea, Caspian Sea and Baltic Sea after the invasion of ctenophore Mnemiopsis leidyi were investigated. Excessive increase in plant plankton as a result of antrophogenic eutrophication leads to a shift in mesozooplankton com-position, which is...

The gregarious ability of the moving locust lead to comparatively study its behaviour during the remissive period (dominating lonely phase) and during the invasive period (dominating gregarious phase). The biogeography analysis of the moving locust in Algeria shows that the frequency sites are...

The grey squirrel is an invasive alien species introduced to Great Britain in the late 19th Century and to Northern Italy during the early 20th Century. As well as displacing the native European red squirrel, grey squirrels cause significant impact to trees and woodlands through bark-stripping...