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Invasive superkoloniale Ameise: Schädling oder halb so schlimm?

By Guest PostNovember 22, 2015Natureameise, anoplolepis gracilipes, bernhard seifert, formica paralugubris, invasive, spinnerameise, superkoloniale, waldameisenart

Der Wissenschaftler Dr. Bernhard Seifert vom Senckenberg Museum für Naturkunde in Görlitz hat die Ausbreitung einer invasiven Waldameisenart in Kanada untersucht. Etwa eine Millionen der Insekten wurden 1971 durch den Menschen in einen kanadischen Wald nahe Quebec eingeführt – die Ameisen haben seitdem ihre Anzahl mindestens verzwanzigfacht. In seiner kürzlich im Fachjournal „Myrmecological News“ veröffentlichten Studie zeigt Seifert, dass die Ameisen nur an einen Ort in Quebec vorkommen und bisher keine Gefahr für das kanadische Ökosystem darstellen. (more…)

Study Offers New Insights on Invasive Fly Threatening U.S. Fruit Crops

By Guest PostMarch 19, 2013Natureblackberry, d suzukii, drosophila suzukii, dylan kraus, east asia, eastern us, eggs, female flies, gina fernandez, hannah burrack, invasive, maturity, north Carolina, raspberry crops, research, spotted wing, state university, taylor spivey, united states, vinegar fly

Humans aren’t the only species with a sweet tooth. Research from North Carolina State University shows that the invasive spotted-wing vinegar fly (Drosophila suzukii) also prefers sweet, soft fruit – giving us new insight into a species that has spread across the United States over the past four years and threatens to cause hundreds of millions of dollars in damage to U.S. fruit crops.

“Because we know that D. suzukii prefers softer, sweeter fruit, we can focus our research efforts into which wild fruits may serve as reservoirs for this species and help identify new crops that might be at risk,” says Dr. Hannah Burrack, an assistant professor of entomology at NC State and lead author of a paper on the research. “These findings may also be a starting point for plant breeders interested in developing new fruit varieties that are more resistant to D. suzukii.” (more…)

Non-native Plants Show a Greater Response Than Native Wildflowers to Climate Change

By Guest PostOctober 20, 2012Environment, Natureblooming pattern, changing climate, citizen scientist, climate change, columbus, data, flowering patterns, herbarium, invasive, kellen calinger, key driver, landscape, life cycle, native wildflower, Nature, non native, ohio, ohio wildflowers, peter curtis, plant species, state, state university, trumbull county, warming temperature, wildflower species

COLUMBUS, Ohio – Warming temperatures in Ohio are a key driver behind changes in the state’s landscape, and non-native plant species appear to be responding more strongly than native wildflowers to the changing climate, new research suggests.

This adaptive nature demonstrated by introduced species could serve them well as the climate continues to warm. At the same time, the non-natives’ potential ability to become even more invasive could threaten the survival of native species already under pressure from land-use changes, researchers say. (more…)

Tag Archives: invasive

Invasive superkoloniale Ameise: Schädling oder halb so schlimm?

Study Offers New Insights on Invasive Fly Threatening U.S. Fruit Crops

Non-native Plants Show a Greater Response Than Native Wildflowers to Climate Change