Alien Species Never Arrive Solo

Researchers from Senckenberg have introduced the concept of "nested invasions," highlighting how invasive species, like the Johnstone’s whistling frog from the Lesser Antilles, can transport invasive microbiomes to new ecosystems. Their study, published in Microbial Ecology, reveals that these microbiomes can significantly impact native ecosystems and facilitate the spread of pathogens. The Johnstone’s whistling frog, which has proliferated across the Caribbean and parts of Central and South America, carries diverse microorganisms within its skin and gut, with the skin microbiome significantly influenced by environmental interactions.

The team conducted genetic analyses of the microbiomes from both native and invasive populations to understand these ecological dynamics better. They found that the spread of bacteria between the frogs and their environment poses a risk for the introduction of vector-borne pathogens. The researchers advocate for greater awareness of microbiota transfer by alien species, arguing that traditional studies on biological invasions have overlooked these critical interactions.

The study aims to enhance our understanding of invasion processes and ultimately inform better conservation strategies. It underscores the idea that invasive species do not arrive alone but with complex microbial communities that may influence native ecosystems significantly.

https://instegro.net/alien-species-never-arrive-solo/?fsp_sid=70460