English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Non-indigenous species ( NIS ) contribute to the decrease of native species’ diversity on a local and global scale. One of Europe’s most significant donors of freshwater invasions is the Ponto-Caspian Region. Following the construction of artificial canals connecting isolated waterbodies and the resulting heavy boat traffic, the Ponto-Caspian   Amphipoda   started to spread in Europe. Four amphipod species:    Dikerogammarus   haemobaphes   ,    Dikerogammarus   villosus   ,    Pontogammarus   robustoides    and    Chaetogammarus   ischnus    have invaded the Masurian Lakeland (North-eastern Poland). Based on literature and our data, we studied their distribution in 22 lakes in the region during the years 2001–2016. We analysed their distribution against several water quality parameters and levels of anthropogenic pressure. Our results also present the first records of two new invaders,    D.   villosus    and    C.   ischnus   , in the studied area. We show that the relative abundance and frequency of these two species rapidly increase and, simultaneously, the populations of the earlier invaders, i.e.    D.   haemobaphes    and    P.   robustoides   , decrease. The native species –    Gammarus   lacustris    – seems to be negatively affected by  NIS  richness, as well as by the proximity of towns. The spread of  NIS  in the lakes appears to be facilitated by boating and the lower complexity of the shoreline. Our study shows how anthropogenic pressure, especially tourism, can facilitate bioinvasion, jeopardising native biodiversity unless appropriate regulations are implemented.

﻿Recent invasion of Ponto-Caspian amphipods in the Masurian Lakeland associated with human leisure activities

Recent invasion of Ponto-Caspian amphipods in the Masurian Lakeland associated with human leisure activities