BACKGROUND AND AIMS Hydrophytes generally exhibit highly acquisitive leaf economics. However, a range of growth forms is evident, from small, free-floating and rapidly growing Lemniden to large, broad-leaved Nymphaeiden, denoting variability in adaptive strategies. Traits used to classify adaptive strategies in terrestrial species, such as canopy height, are not applicable to hydrophytes. We hy...

Since the first demonstrations of the herbicidal action of 2,4-D, many possible mechanisms for the toxicity have been proposed. These include changed respiratory metabolism, abnormal cellular proliferation, and interference in nucleotide metabolism. It has further been recorded that nitrate metabolism is altered in response to applied 2,4-D. In many broad leaved weed species (14, 5) and in the ...

Invasive species richness often is negatively correlated with native species richness at the small spatial scale of sampling plots, but positively correlated in larger areas. The pattern at small scales has been interpreted as evidence that native plants can competitively exclude invasive species. Large-scale patterns have been understood to result from environmental heterogeneity, among other ...

In the summer of 2021 we identified three new distribution localities Darevskia praticola north Mureș River, and one locality south river. The habitats populated by D. (broad-leaved forest with wet areas) altitude (175–245 m) records are typical for this species. Nevertheless, had not been recorded in 12 other similar conditions from an area previously considered suitable Thus, may be slowly ex...

The forest community structure and dynamic provide basic data for in-depth study of the maintenance mechanisms succession processes urban ecosystems. Moreover, on dynamics suburban communities can a reference process under severe human disturbance. In this context, analyzes species composition 6 ha subtropical secondary evergreen broad-leaved plot in Wuchaoshan National Forest Park, Hangzhou, E...

The vine mealybug, Planococcus ficus (Signoret) (Hemiptera: Pseudococcidae), is a pest in grape vine growing areas worldwide. The essential oils from the following aromatic plants were tested for their insecticidal activity against P. ficus: peppermint, Mentha piperita L. (Lamiales: Lamiaceae), thyme-leaved savory, Satureja thymbra L., lavender, Lavandula angustifolia Mill, and basil, Ocimum ba...