نتایج جستجو برای: open woodland
تعداد نتایج: 396720 فیلتر نتایج به سال:
this study aims to investigate the relationships between people?s livelihoods and the woodland resources of the ganaveh watershed in southern zagros, iran, as a basis for suggestions of strategies for sustainable management of the woodland resources and improvement of the livelihoods of people in the community. household data were collected through interviews with heads of households and member...
We summarize available information about the relationships between oak overstory and understory plants for major California rangeland types. Understory biomass, productivity, and plant species composition vary considerably because of geographic location, overstory species composition, and overstory density and distribution. Deciduous oak canopies in areas with less than 50 cm annual precipitati...
Over the past century, increases in both density and distribution of deer species in the Northern Hemisphere have resulted in major changes in ground flora and undergrowth vegetation of woodland habitats, and consequentially the animal communities that inhabit them. In this study, we tested whether recovery in the vegetative habitat of a woodland due to effective deer management (from a peak of...
Persian juniper and Pistachio are grown in low density in the rangelands of North-East of Iran. These rangelands are populated by evergreen conifers, which are widespread and present at low-density and sparse shrub of pistachio in Iran, that are not only environmentally but also genetically essential as seed sources for pistachio improvement in orchards. Rangelands offer excellent opportunities...
Cork oak landscapes are fascinating ecosystems, historically managed for cork extraction. The persistence in this habitat of many hollow veteran trees provides suitable micro-habitats saproxylic beetles. We investigated the beetle community two isolated woodlands central Italy with different degree recovery after human transformation: (1) an open woodland and (2) a dense mixed woodland, both do...
Management strategies and silvicultural treatments of fire-prone ecosystems often rely on knowledge of the regeneration potential and long-term recovery ability of vegetation types. Remote sensing and GIS applications are valuable tools providing cost-efficient information on vegetation recovery patterns and their associated environmental factors. In this study we used an ordinal classification...
0006-3207/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.biocon.2012.04.019 ⇑ Corresponding author. Tel.: +44 (0) 1786 466544; E-mail address: [email protected] (E. Fuentes-Monte As a consequence of long-term deforestation, woodland cover has been drastically reduced in the United Kingdom. The remaining woodland consists mainly of small, highly fragmented woodland patches wit...
Tropical rain forest expansion and savanna woody vegetation thickening appear to be a global trend, but there remains uncertainty about whether there is a common set of global drivers. Using geographic information techniques, we analyzed aerial photography of five areas in the humid tropics of northeastern Queensland, Australia, taken in the 1950s and 2008, to determine if changes in rain fores...
The distribution of many woodland herbs extends 1000–2000 km in a north– south direction, yet the majority of these species grow clonally, have little recruitment by seed, and possess no obvious mechanism for long-distance seed dispersal. Although aware that woodland herbs disperse poorly, ecologists have tacitly assumed that, given long periods of time, even small dispersal distances would all...
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