Publications

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recovery potential of a western lowland gorilla population following a major ebola outbreak: results from a ten year study.investigating the recovery capacity of wildlife populations following demographic crashes is of great interest to ecologists and conservationists. opportunities to study these aspects are rare due to the difficulty of monitoring populations both before and after a demographic crash. ebola outbreaks in central africa have killed up to 95% of the individuals in affected western lowland gorilla (gorilla gorilla gorilla) populations. assessing whether and how fast affected populations recover is ess ...201222649511
how ebola impacts social dynamics in gorillas: a multistate modelling approach.emerging infectious diseases can induce rapid changes in population dynamics and threaten population persistence. in socially structured populations, the transfers of individuals between social units, for example, from breeding groups to non-breeding groups, shape population dynamics. we suggest that diseases may affect these crucial transfers. we aimed to determine how disturbance by an emerging disease affects demographic rates of gorillas, especially transfer rates within populations and immi ...201524995485
using demographic characteristics of populations to detect spatial fragmentation following suspected ebola outbreaks in great apes.demographic crashes due to emerging diseases can contribute to population fragmentation and increase extinction risk of small populations. ebola outbreaks in 2002-2004 are suspected to have caused a decline of more than 80% in some western lowland gorilla (gorilla gorilla gorilla) populations. we investigated whether demographic indicators of this event allowed for the detection of spatial fragmentation in gorilla populations.201728661006
catastrophic ape decline in western equatorial africa.because rapidly expanding human populations have devastated gorilla (gorilla gorilla) and common chimpanzee (pan troglodytes) habitats in east and west africa, the relatively intact forests of western equatorial africa have been viewed as the last stronghold of african apes. gabon and the republic of congo alone are thought to hold roughly 80% of the world's gorillas and most of the common chimpanzees. here we present survey results conservatively indicating that ape populations in gabon decline ...200312679788
genetic diversity of north american captive-born gorillas (gorilla gorilla gorilla).western lowland gorillas (gorilla gorilla gorilla) are designated as critically endangered and wild populations are dramatically declining as a result of habitat destruction, fragmentation, diseases (e.g., ebola) and the illegal bushmeat trade. as wild populations continue to decline, the genetic management of the north american captive western lowland gorilla population will be an important component of the long-term conservation of the species. we genotyped 26 individuals from the north americ ...201223403930
conservation. scientists say ebola has pushed western gorillas to the brink. 200717872416
guns, germs, and trees determine density and distribution of gorillas and chimpanzees in western equatorial africa.we present a range-wide assessment of sympatric western lowland gorillas gorilla gorilla gorilla and central chimpanzees pan troglodytes troglodytes using the largest survey data set ever assembled for these taxa: 59 sites in five countries surveyed between 2003 and 2013, totaling 61,000 person-days of fieldwork. we used spatial modeling to investigate major drivers of great ape distribution and population trends. we predicted density across each taxon's geographic range, allowing us to estimate ...201829707637
anthrax in western and central african great apes.during the period of december 2004 to january 2005, bacillus anthracis killed three wild chimpanzees (pan troglodytes troglodytes) and one gorilla (gorilla gorilla gorilla) in a tropical forest in cameroon. while this is the second anthrax outbreak in wild chimpanzees, this is the first case of anthrax in gorillas ever reported. the number of great apes in central africa is dramatically declining and the populations are seriously threatened by diseases, mainly ebola. nevertheless, a considerable ...200616900500
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