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- Bee and wild flower biodiversity loss slows 22 maggio 2013
- Drought makes Borneo's trees flower at the same time 22 maggio 2013
- Polymer breakthrough inspired by trees and ancient celtic knots 22 maggio 2013
- Lost in translocation? How bird song could help save species 22 maggio 2013
- Study reveals how fishing gear can cause slow death of whales 21 maggio 2013
- Minus environment, patterns still emerge: Computational study tracks E. coli cells' regulatory mechanisms 21 maggio 2013
- Bird's playlist could signal mental strengths and weaknesses 21 maggio 2013
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15 febbraio 2010 | 
Autore: Xenopsylla cheopis, è una pulce ectoparassita di molti animali; è frequente soprattutto sui ratti ed è il principale vettore della peste bubbonica in quanto veicola il patterio patogeno Yersinia pestis.
Xenopsilla cheopis
Classificazione
Classe: Insetti
Ordine: Sifonatteri o Afanitteri
Famiglia: Pulicidi, comprende circa 150 specie, parassite di mammiferi, cosmopolita.
Genere: Xenopsilla
Specie: Xenopsilla cheopis
Per saperne di più sulla peste bubbonica…
Medici della peste
… e sulle zoonosi
Pubblicato in Animalia, Classificazione degli animali | 
Tag: Ambiente, animali, Biologia, parassiti, tassonomia, Zoologia
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- Bee and wild flower biodiversity loss slowsDeclines in the biodiversity of pollinating insects and wild plants have slowed in recent years, according to a new study. Researchers found evidence of dramatic reductions in the diversity of species in Britain, Belgium and the Netherlands between the 1950s and 1980s. But the picture brightened markedly after 1990, with a slowdown in local and national biod […]
- Drought makes Borneo's trees flower at the same timeTropical plants flower at supra-annual irregular intervals. In addition, mass flowering is typical for the tropical forests in Borneo and elsewhere, where hundreds of different plant timber species from the Dipterocarpaceae family flower synchronously. This phenomenon is all the more puzzling because both temperature and day length are relatively constant al […]
- Polymer breakthrough inspired by trees and ancient celtic knotsA new slow-motion method of controlling the synthesis of polymers, which takes inspiration from both trees and Celtic knots, opens up new possibilities in areas including medical devices, drug delivery, elastics and adhesives. […]
- Lost in translocation? How bird song could help save speciesTranslocation -- or moving animals to safer places -- is a vital tool for saving species from extinction. Many factors influence the success of these new populations, including habitat quality, predators, capture and release techniques, the number and sex of individuals, and their genetic diversity. Now new research, the first of its kind suggests bird song […]
- Study reveals how fishing gear can cause slow death of whalesUsing a "patient monitoring" device attached to a whale entangled in fishing gear, scientists showed for the first time how fishing lines changed a whale's diving and swimming behavior. The monitoring revealed how fishing gear hinders whales' ability to eat and migrate, depletes their energy as they drag gear for months or years, and can […]