Hantaviruses are enveloped RNA viruses each carried by a specific rodent species. Three
hantaviruses, Puumala, Dobrava, and Saaremaa viruses, are known to cause haemorrhagic …

Hantaviruses are negative-sense single-stranded RNA viruses that infect many species of
rodents, shrews, moles and bats. Infection in these reservoir hosts is almost asymptomatic, but …

1950s that general explanations for these fluctuations were proposed. The first to emerge
involved physiological stress, thought to develop at high density due to both physical and …

… in litter size from 5-6 in southern Fennoscandia to 7-9 in the north (H. Henttonen, unpubl.),
but these differences should decrease rather than increase the cycle length from south to …

… and Henttonen 1983; Henttonen in prep.), a fact consistent with the role of specialist predators
(small mustelids, cf. also Oksanen and Oksanen 1981; Hansson 1984b; Henttorten 1985). …

LETTERS TO) NATURE Page 1 LETTERS TO) NATURE not necessarily cause species
extinction. For suitable parameter values we have observed reductions in extinction rates up to r …

… Hansson and H. Henttonen by collating and analyzing all available long-term trapping
data (… where s is the intrinsic growth rate of the predator population and h is a function. If we …

Suggestions of collapse in small herbivore cycles since the 1980s have raised concerns
about the loss of essential ecosystem functions. Whether such phenomena are general and …

… 18 days at 4 C, but were inactivated after 24 h at 37 C. Interestingly, a fraction of dried virus
was still infectious after 1 h at 56 C. These results demonstrated that hantavirus transmission …

Trees in a forest interact and therefore have to be considered as a system of dependent
random variates from an unknown stochastic process. One such mathematical model which …