نتایج جستجو برای: alien species
تعداد نتایج: 551508 فیلتر نتایج به سال:
Oxalis pes-caprae f. pleniflora (Lowe) Sunding (Oxalidaceae), a naturalized invasive alien is recorded for the first time from Turkey. It has staminodes and double petals as different properties from Oxalis pes-caprae L. Sympatric variations occured in the species populations could be the result of an accumulation of mutations or genome rearrangement. Invasive alien weed Oxalis pes-caprae and i...
Isolated island habitats have different concerns about invasive and alien species than connected continental areas, including wariness of transgressions against quarantine regulations and the protection of native species with limited geographic range (OTA 1993; Thaman 2002). Given the elevated threat of the establishment of species with ecologies unlike endemic taxa, large-scale control measure...
Some alien species cause substantial impacts, yet most are innocuous. Given limited resources, forecasting risks from alien species will help prioritise management. Given that risk assessment (RA) approaches vary widely, a synthesis is timely to highlight best practices. We reviewed quantitative and scoring RAs, integrating > 300 publications into arguably the most rigorous quantitative RA fram...
We investigated the role of Drosophila larva olfactory system in identification of congeners and aliens. We discuss the importance of these activities in larva navigation across substrates, and the implications for allocation of space and food among species of similar ecologies. Wild type larvae of cosmopolitan D. melanogaster and endemic D. pavani, which cohabit the same breeding sites, used s...
Alien tick species of the genera Ixodes, Amblyomma, Hyalomma and Rhipicephalus are sporadically transferred to the territories of the Central European countries. A biological-medical review of the following alien tick species transferred to Poland is presented: Ixodes eldaricus, Ixodes festai, Amblyomma sphenodonti, Amblyomma exornatumn, Amblyomma flavomaculatum, Amblyomma latum, Amblyomma nutt...
Abstract The novel-weapons and homeland-security hypotheses are based on the idea that aliens natives not adapted to each other’s allelochemicals as they did co-evolve. However, only a few studies have tested this, it remains unclear how important co-evolutionary history is in determining strength of allelopathic interactions between natives. Here, we for potential pairwise effects other five a...
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