After a nomenclatural revision of the higher rank syntaxa class Isoeto-Nanojuncetea , conservation order name Nanocyperetalia against Nanocypero-Polygonetalia and conserved type for Isoetetalia are proposed. (26) Klika 1935: 292, nom. cons. propos. Typus: Nanocyperion flavescentis Koch 1926: 20–28 (holotypus) (≡) 20, rejic. (27) Braun-Blanquet 1936a: 142, typus Isoetion 141 (typus propos.) Taxo...

Biological invasions represent a serious threat for the conservation of biodiversity in many ecosystems. While many social insect species and in particular ant species have been introduced outside their native ranges, few species have been successful at invading temperate forests. In this study, we document for the first time the relationship between the abundance of the introduced ant, Pachyco...

Aims : The Braun-Blanquet approach has been widely implemented to generate classification schemes at the country level and Chile is not an exception. In spite of numerous studies, a revised system for whole still missing most current surveys are restricted small set vegetation groups or specific study sites. To fill this gap, we established vegetation-plot database updated into single syntaxono...

Owing to its variable topographic features, Ethiopia is endowed with rich biological resources. However, nowadays, these vital resources, mainly forests, are declining alarmingly, largely, due agricultural expansion and energy consumption. This study was conducted at Gosh-Beret forest the objective of investigating status species. Fifty-one main plots, spaced a 100 m interval, were laid on nort...

Six years of oceanographic surveys of Alexandrium fundyense concentrations in the Gulf of Maine are combined with shellfish toxicity records from coastal monitoring stations to assess covariations of these quantities on seasonal to interannual time scales. Annual mean gulf-wide cell abundance varies by less than one order of magnitude during the time interval examined (1993–2002). Fluctuations ...

Previous exclosure studies measuring the top-down control of arthropod abundance and herbivory combined the effects of birds and bats. We experimentally partitioned bird predation from bat predation in a lowland tropical forest in Panama and measured the direct effects (arthropod abundance) and indirect effects (herbivory). The exclusion of birds and bats each directly increased arthropod abund...

Many topographic characteristics of the landscape (e.g. relief, slope, aspect, gradient, slope curvature, slope length and contour curvature) play important roles in the distribution of vegetation and biodiversity (e.g. Merriam, 1890, 1894; Whittaker & Niering, 1965, 1968; Vuilleumier, 1970; Brown, 1971, 1978; Hastings et al., 1972; Simpson, 1975; Hanawalt & Whittaker, 1976; Whittaker, 1977; Be...