As per a paper, being published in the British Ecological Society's Journal of Applied Ecology, it has been revealed that ticks, which became non-existent in Canada in 1990s, have made their comeback. For now, it has been found in warm areas like east of Saskatchewan.
The rise in the population of ticks carrying Lyme disease has reached to 18%. Lead researcher Patrick Leighton of the University of Montreal's faculty of veterinary medicine, expects that population will increase by 80% till 2020.
Leighton has pointed out many reasons for the comeback of the ticks. Some of them being rise in temperature. Though he did not mention global warming, rise in temperature was enough to establish the main reason.
Presence of short tailed white deer and reforestation are also said to be other reasons of return of ticks carrying Lyme disease. White-tailed deer are among some of the animals, which carry ticks. So there is great possibility that it might have also led to increase in the percentage of ticks.
Some of the areas in the country, which are seeing increase in the number of ticks, are southern Quebec, southern and eastern Ontario, and southern Nova Scotia. Leighton said that they intentionally did not include western Canada in their study as it remains cold throughout the year, which decreases chances of tick population to increase.
Leighton said that though tick population has increased, there is less than 10% chance that they will cause any human risk. However, in order to prevent the tick bite, Leighton suggested that people should wear long sleeve shirts and war long shoes with pants when they go to visit nay farm place. If then also tick bites a person, he should quickly remove it.