desert and marginal lands of playas which are covered with halophyte shrubs, play a great role in supply of forage for livestock as winter rangelands. in this research, plant samples were collected from four palatable halophyte species for zandi sheep of qom desert rangelands including seidlitzia rosmarinus، halocnemum strobilaceum، alhagi camelorum and tamarix passerinoides in two phenological...

Nurse plant facilitation is a commonly reported plant-plant interaction and is an important factor influencing community structure in stressful environments. Cushion plants are an example of alpine nurse plants that modify microclimatic conditions within their canopies to create favourable environments for other plants. In this meta-analysis, the facilitative effects of cushion plants was expan...

This paper describes the first visit to Jacquemart Island in the south of the subantarctic Campbell Island group. The island contrasts with the main island by the absence of introduced grazing mammals, rats (Rattus spp.) and feral cats (Felis catus), and in the dominance of palatable plant species. A survey of the main vegetation communities was made and bird species seen were recorded. Specime...

In this paper we document the role of Phormium tenax as a nurse plant in unimproved pasture. We show that for our study area the regeneration of woody species was limited solely to P. tenax clumps with 22 native and one introduced regenerating woody species present. The number of woody species and of individual woody plants regenerating within P. tenax is not correlated with distance from the e...

Nurse plant facilitation in stressful environments can produce an environment with relatively low stress under its canopy. These nurse plants may produce the conditions promoting intense competition between coexisting species under the canopy, and canopies may establish stress gradients, where stress increases toward the edge of the canopy. Competition and facilitation on these stress gradients...

The objective of this study was to quantify the effects of protection on herbaceous species composition, total plant cover, dry matter, plant density, floristic richness and diversity. Characteristics of vegetation under continued grazing and protected area for 10 and 65 years were examined in a degraded arid environment in South Tunisia. Our results show that protection enhances significantly ...

Montane longleaf pine (Pinus palustris) forests are currently dwindling due to fire suppression. Longleaf pine forests require reoccurring natural forest fires for longleaf regeneration and maintenance of the understory community composition. In many areas of the southeastern United States, decades of fire suppression have led to invasion of longleaf-dominated forests by deciduous hardwoods and...

Abstract Nowadays, the ecology and evolutionary potential of alien species are subjects several ecological studies. The goal this study was to compare feeding preference Arion ater on seedlings leaves native plant species. Seedlings three one were offered slugs individually in combination. Afterward, leaf discs from collected same source site slug’s habitat combination for slugs. When new emerg...