BACKGROUND Exploring the residence time of allelochemicals released by plants into different soils, episodic exposure of plants to allelochemicals, and the effects of allelochemicals in the field has the potential to improve our understanding of interactions among plants. METHODOLOGY/PRINCIPAL FINDINGS We conducted experiments in India and the USA to understand the dynamics of soil concentrat...

1 Although outbreeding populations of many grassland plants exhibit substantial genetic and phenotypic variation at fine spatial scales (< 100 m 2 ), the implications of local genetic diversity for community structure are poorly understood. Genetic diversity could contribute to local species diversity by mediating the effects of competition between species and by enhancing species persistence i...

STOCK DEFINITION AND GEOGRAPHIC RANGE The coastal morphotype of bottlenose dolphin is continuously distributed along the Atlantic coast south of Long Island, New York, to the Florida peninsula, including inshore waters of the bays, sounds and estuaries. Except for animals residing within the Southern North Carolina and Northern North Carolina Estuarine Systems (e.g., Waring et al. 2007), estuar...

  Background: Some of medicinal plants are a potential source of new drugs to improve the treatment of Chagase disease whose treatment is still a challenge. Here in this screening, the in vitro trypanocidal activity of some fractions for 16 medicinal plants, collected from the northern part of Iran, has been reported.   Methods: Aerial parts of the plants were dried carefully and followed by ex...

Ding dongmerrily on high, goes the famous Christmas carol, but for some of the United Kingdom’s 40 000 campanologists the bells have not been ringing so merrily. Instead, church bell ringers have this year been complaining of a disorder that has been forcing them to abandon their towers and steeples and seek out hypnotherapists and counsellors in search of a cure. Symptoms include vertigo, a se...