How can control of invading plant pathogens increase their rate of spread? How can we prevent it?

Ryan Sharp and colleagues investigate the answers to both of these questions and discuss their recent work, The effect of competition on the control of invading plant pathogens, published in Journal of Applied Ecology.

When pathogens invade into an area, they may find themselves in competition with already endemic pathogen strains. This competition can severely limit the spread of the invader. Control methods generally do not distinguish between pathogen strains. Therefore, when control is applied, both invasive and endemic strains are affected. Continue reading How can control of invading plant pathogens increase their rate of spread? How can we prevent it?

Using phenology to guide invasive plant management

Successful restoration of degraded land often depends on well-timed interventions to control invasive species. In their recently published article, Taylor and colleagues present a case study of the effects of incorporating phenology information into invasive plant control operations at Midway Atoll National Wildlife Refuge (NWR), USA. The authors share their story below. Towards the end of April, millions of birds, including warblers, tanagers, buntings, grosbeaks … Continue reading Using phenology to guide invasive plant management

Cover stories: escapes from aquaculture

Using the example of sturgeons in the Yangtze River and impacts on the critically endangered Chinese sturgeon, work by Rui-Ting Ju et al. looks into policies around escaping non-native species from aquaculture. The corresponding cover image for issue 57:01 was taken by Ping Zhuang. Sturgeon farming is expanding worldwide due to the overexploitation of wild stocks. In China, the main farmed species are non-native species … Continue reading Cover stories: escapes from aquaculture

Private boats in the Mediterranean have extremely high potential to spread alien species

British Ecological Society press release A Mediterranean-wide study has found that 71% of sampled recreational boats hosted alien marine species. Over half carried an alien species that was not yet present in the marina the boat was visiting. The research is published in the British Ecological Society Journal of Applied Ecology. This is the first study in the Mediterranean to combine boat and marina sampling data … Continue reading Private boats in the Mediterranean have extremely high potential to spread alien species

eDNA snapshots of invasion, infection and extinction from a freshwater crayfish tragedy

For the first time, a devastating crayfish plague outbreak has been monitored from the onset to crayfish extinction using eDNA methodology. David A. Strand and colleagues surveyed a watercourse over three years and discovered a remarkable correlation between eDNA fluctuations and host-pathogen dynamics. Noble crayfish (Astacus astacus) are macroinvertebrates that can be found in both lotic and lentic freshwater systems across most of Europe. Previously … Continue reading eDNA snapshots of invasion, infection and extinction from a freshwater crayfish tragedy