The Argentine ant, Linepithema humile, is a widespread invasive species characterized by reduced intraspecific aggression within introduced populations. To illuminate the mechanisms underlying nestmate recognition in Argentine ants, we studied the spatial and temporal fidelity of intraspecific aggression in an introduced population of Argentine ants within which intraspecific aggression does oc...

The major aromatic components of the essential leaf oil of the New Zealand lemonwood tree Pittosporum eugenioides are octyl acetate (33%), terpinen-4-ol (13%), decanol (6%) and (Z)-hex-3-enol (5%). These products are responsible for the characteristic Citrus-like aroma which is detected when the leaves are crushed, a phenomenon which provided the species with its common name. The major componen...

A cikk a medvetalp (Heracleum) nemzetség néhány hazánkban gyűjtött, tévesen határozott, az MTM Növénytára herbáriumában (BP) őrzött példányát, illetve ezek szakirodalmi kapcsolatait tárgyalja. Az őshonos Heracleum taxonok Kárpát-medencei elterjedési mintázatát Simon Tibor tisztázta 1960-as években, szóban forgó példányokat azonban, amelyek valójában idegenhonos fajokat reprezentálnak, revideált...

The essential oils, isolated by hydrodistillation from the leaves, seeds and rhizomes of Heracleum sprengelianum (Wight and Arnott), collected from the Western Ghats of Peninsula India, were analyzed by gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC-MS). The antioxidant property of these oils was tested, with and without peroxidation inducer, through the egg yol...

OBJECTIVE Medicinal plants are widely used throughout the world. Since these plants are known to have minimal side effects, many people embrace them. The golpar plant, scientifically known as Heracleum persicum (H. persicum), is a common Asian and Iranian medicinal plant. The use of golpar is recommended in traditional medicine as a contraceptive medication for females; however, no scientifical...