Sentence examples for primary introduction from inspiring English sources

Both Japanese knotweed and mugwort are perennial geophytes with long histories of human use, but contrasting primary introduction pathways to North America [12].

The large-scale dispersal of Japanese knotweed and mugwort, invasive species with contrasting introduction histories in the US, could be explained by secondary dispersal from primary introduction sites into adjacent counties.

For instance, a recently developed model of green crab range expansion in the region suggests that primary introduction from the native range is likely a rare event [35], consistent with the most likely invasion scenario detailed above.

Such outbreaks are difficult to detect when the primary introduction of viruses through food occurs simultaneously in several countries or continents (7 – 9 ).

Both these studies suggested that South African populations are likely a primary introduction from a different source population in the native range.

After primary introduction of the virus through food, secondary person-to-person and environmental transmission can rapidly take over, making it hard to trace the disease back to contaminated food.

There are very few primary introductions known in the Baltic Sea (e.g., the fishhook water flea [Cercopagis pengoi], zebra mussel [Dreissena polymorpha] and some Pacific salmonids [Oncorhynchus spp.]) while the Baltic has historically been and still is subject to secondary introductions from both the North Sea area and adjacent inland waters ([170] and references therein).

Most of the non CSE European outbreaks have been observed for the first time after the occurrence of WCR at CSE European sample locations and could thus not be the source of primary introductions in CSE Europe.

In some regions, localized supercolonies are also present, probably the result of further primary introductions from the native range or secondary introductions from other introduced ranges (California: Suarez et al. 2002; Catalonia: Giraud et al. 2002; Japan: Sunamura et al. 2009b; south-eastern United States: Buczkowski et al. 2004).

data); 2) molecular epidemiologic data demonstrate the circulation of numerous distinct genotypes of Marburg virus in Durba/Watsa, consistent with multiple parallel primary introductions rather than a single one amplified by secondary spread (R. Swanepoel et al., unpub. data); and 3) previous cases of MHF have been associated with entry into caves (5, 6 ).

The standard primary school introduction would go something like this: "What's your name?" "Nigel".