نتایج جستجو برای: native species
تعداد نتایج: 632890 فیلتر نتایج به سال:
Ecohydrology and invasive ecology have become increasingly important in the context of global climate change. This study presents the first in-depth analysis of the water use of invasive and native plants of the same growth form at multiple scales: leaf, plant, and ecosystem. We reanalyzed data for several hundred native and invasive species from over 40 published studies worldwide to glean glo...
Venom toxicity assessments are often based upon non-native surrogate prey species that are not consumed in the wild by the venomous predator. This raises questions about the relevance of toxicity results on these "model" prey in addressing ecological or evolutionary questions about venom effects on native prey. We explore this issue by comparing the toxicity of venom from pygmy rattlesnakes (Si...
Tolerance of native and non-native fish species to chemical stress: a case study for the River Rhine
Freshwater ecosystems can be impacted by invasive species. Non-native species can become invasive due to their high tolerance to environmental stressors (e.g., pollution and habitat modifications). Yet, tolerance of native and non-native fish species exposed simultaneously to multiple chemical stressors has not been investigated. To quantify tolerance of native and non-native fish species in th...
New interactions with non-native species can alter selection pressures on native species. Here, we examined the effect of the spatial distribution of a non-native species, a factor that determines ecological and evolutionary outcomes but that is poorly understood, particularly on a fine scale. Specifically, we explored a native butterfly population and a non-native plant on which the butterfly ...
Invasive alien plant species negatively impact native plant communities by out-competing species or changing abiotic and biotic conditions in their introduced range. River systems are especially vulnerable to biological invasions, because waterways can function as invasion corridors. Understanding interactions of invasive and native species and their combined effects on river dynamics is essent...
Junipers (Juniperus spp.) are native woody shrubs that have expanded beyond their normal historical ranges in the western and southwestern United States since the late 1800s. Most ecologists and resource managers agree that juniper has become a deleterious native invasive plant that threatens other vegetation ecosystems, such as grasslands, through a steady encroachment and ultimate domination....
Introduction Climate change is reshaping the geographical distribution of species across globe. In marine ecosystems, climate creates novel challenges to an environment impacted by numerous anthropogenic stressors. Forecasting shifts in distribution, including expansion non-indigenous under scenarios, a management challenge for today’s world. Methods We applied Bayesian Additive Regression Tree...
Introduced, managed bees such as mason (genus Osmia) can confer significant pollination benefits to agricultural systems, but a risk of introducing non-native species into new ecosystems is the co-introduction pathogens along with them. Pathogen spillover wild, native may then drive bee declines. This study examined prevalence chalkbrood-causing fungal genus Ascosphaera in nests both and specie...
Aim The concept of “island disharmony” has been widely applied to describe the systematic over- and under-representation taxa on islands compared mainland regions. Here, we explore an extension that biological invasions. We compare biogeographical patterns in native non-native beetle (Coleoptera) assemblages from around world test whether invasions represent a random sample species or some fami...
Non-native species cause changes in the ecosystems to which they are introduced. These changes, or some of them, are usually termed impacts; they can be manifold and potentially damaging to ecosystems and biodiversity. However, the impacts of most non-native species are poorly understood, and a synthesis of available information is being hindered because authors often do not clearly define impa...
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