Black wildebeest
Black wildebeest act as hosts to a number of external and internal parasites. A study of the animal in Karroid Mountainveld (Eastern Cape Province, South Africa) revealed the presence of all the larval stages of the nasal bot flies "Oestrus variolosus" and "Gedoelstia hässleri". The first instar larvae of "G. hässleri" were found in large numbers on the dura mater of wildebeest calves, specially between June and August, and these later migrated to the nasal passages. Repeated outbreaks of mange (scab) have led to large-scale extinctions. The first study of the protozoa in blue and black wildebeest showed the presence of 23 protozoan species in the rumen, with "Diplodinium bubalidis" and "Ostracodinium damaliscus" common in all the animals.
Lynn Canyon Park
There is a multitude of wildlife in the Lynn Canyon area. One of the main concerns for human-animal interactions in the North Vancouver area arises from black bears. Black bears are found in areas such as Lynn Canyon Park but also have been found to travel into residential areas in search of food. More than 1000 bears are killed every year in British Columbia because of bear-human conflicts so the North Shore Black Bear Society published a report year end report in 2012 to try to address this issue. Although black bears are common in the Lynn Valley area many of the animals, especially the birds, will tend to migrate to different locations all around North Vancouver and can even be found as far west as Horseshoe Bay.