BACKGROUND Phytoextraction is an environmentally acceptable and inexpensive technique for mine tailing rehabilitation that uses metallophyte plants. These plants reduce the soil trace metal contents to environmentally acceptable levels by accumulating trace metals. Recently, whether more trace metals can be removed by species-rich communities of these plants received great attention, as species...

sand dune habitats in desert regions have harsh conditions for plant establishment and survival. ammodendron persicum, an psamophyte shrub plant belongs to leguminosae family, which grows over the desert sand dunes of zirkohgaen, gezik and khash  along east part of iran. recognizing the adaptive features of the plant species may help towards its conservation and introducing to other sand dune h...

Plant traits related to attractiveness to pollinators (e.g. flowers and nectar) can be sensitive to abiotic or biotic conditions. Soil nutrient availability, as well as interactions among insect-pollinated plants species, can induce changes in flower and nectar production. However, further investigations are needed to determine the impact of interactions between insect-pollinated species and ab...

Background & Aim: The use of medicinal plants is an option for livestock farmers who do not want to use allopathic drugs under certified organic programs or cannot afford to use allopathic drugs for minor health problems of livestock. Thus, the main aim of this study is the identification of some ethnoveterinary medicinal plants of Tehran watershed and their medicinal effects on livestock.  Ex...

1. Medicinal and Aromatic Plants – Australia 1.1. Natural Plant Medicines Worldwide A Historical Perspective 1.2. Phytochemicals of Therapeutic Significance 1.3. Nitrogen Containing Compounds (Alkaloids) 2. Australian Plant Evolution 2.1. Australian Medicinal Plant Use 3. Some Useful Australian Medicinal Plants 3.1. Eucalyptus Species 3.2. Melaleuca Species 3.3. Leptospermum Species 3.4. Eremop...

background and objectives: early watergrass (echinochloa oryzoides) is considered as a new-introduced species and then as a potential invader. investigation of competitive traits of this species, in comparison with barnyardgrass (e. crus-galli), one of the most important weeds in rice fields of guilan province, would be useful to determine its spreading possibility as an aggressive weed. theref...

Several prominent hypotheses have been posed to explain the immense variability among plant species in defense against herbivores. A major concept in the evolutionary ecology of plant defenses is that tradeoffs of defense strategies are likely to generate and maintain species diversity. In particular, tradeoffs between constitutive and induced resistance and tradeoffs relating these strategies ...

Numerous experiments have demonstrated that diverse plant communities use nitrogen (N) more completely and efficiently, with implications for how species conservation efforts might influence N cycling and retention in terrestrial ecosystems. However, most such experiments have randomly manipulated species richness and minimized environmental heterogeneity, two design aspects that may reduce app...

In semi-arid ecosystems, vegetation is heterogeneously distributed, with plant species often associating in patches. These associations between species are not constant, but depend on the particular response of each species to environmental factors. Here, we investigated how plant species associations change in response to livestock grazing in a semi-arid ecosystem, Cabo de Gata-Níjar Natural P...