نتایج جستجو برای: ruderal
تعداد نتایج: 246 فیلتر نتایج به سال:
Prior to Anglo-European settlement, fire was a major ecological process influencing the structure, composition and productivity of shortgrass prairie ecosystems on the Great Plains. However during the past 125 years, the frequency and extent of grassland fire has dramatically declined as a result of the systematic heavy grazing by large herds of domestic cattle and sheep which reduced the avail...
BACKGROUND AND AIMS Ambrosia artemisiifolia is a ruderal weed introduced from North America to Europe. It produces large amount of achenes which are highly heterogeneous in size. Due to the preponderant role of propagules in invasive plant processes, the achene mass variability related to germination, dispersal strategy and life history traits of offspring were investigated within this species....
The protection of wetlands is a cornerstone in the conservation pond-breeding amphibians. Because protected are rarely natural areas, but often man-made, at least Europe, it important that they well managed to fulfill their intended function. Appropriate management requires knowledge ecology species, particularly habitat requirements. Here, we combine species monitoring data and mapping an anal...
Exceptional components of the cultural landscape Central Europe include archaeological sites, e.g., castle ruins, prehistoric or medieval fortified settlements, other settlements and burial mounds. The plants associated with them help us explain processes species persistence on habitat islands as well process naturalization crop species, which escape from fields are abandoned. This study descri...
Plant communities represent the integration of ecological and biological processes they serve as an important component for protection diversity. To measure progress towards ecosystems in United States various stated conservation targets we need datasets at appropriate thematic, spatial, temporal resolution. The recent release LANDFIRE Existing Vegetation Data Products (2016 Remap) with a legen...
Abstract We present the first inventory and status assessment of alien flora Oman, mainly based on field data collected from 1998 to 2021. The study provides (i) a comprehensive account vascular plant species occurring in wild with information their taxonomic composition. For each is given (ii) invasion (casual, naturalized or invasive), biogeography, habitat life-form characteristics, pathways...
Quantifying the relationship linking the community?weighted means of plant traits and soil fertility
Is it possible to generalize relationships between certain plant traits and soil fertility? In particular, are there quantitative community-weighted mean (CWM) trait values of leaf dry-matter content (LDMC), specific area (SLA), height, Grime’s competitor-stress tolerator-ruderal (CSR) strategy scores the generalized fertility, FG (i.e., capacity a produce biomass when all nonsoil variables hel...
Sulfur is an essential macronutrient for plant primary metabolism. Its availability can modulate growth in most terrestrial ecosystems. However, its relationship with other leaf and nutrient traits, hence contribution to functioning, remains unclear. We analysed traits 740 vascular species growing a wide range of environmental conditions Northern Italy. determined whether sulfur content per uni...
The discovery of a new species for the flora Kharkiv Oblast — Galium praeboreale Klokov (Rubiaceae) is reported along with records eight more that have not been registered before in Homilshanski Lisy National Nature Park and its vicinites: Euphorbia subtilis Prokh. (Euphorbiaceae), Carex tomentosa L. (Cyperaceae), Tragopogon podolicus (DC.) Artemcz. (Asteraceae), Arctium nemorosum Lej. Galeopsi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید