Researchers from University of Turku investigated how the vaccine mandate against the deadly childhood infection smallpox was successful at increasing vaccination coverage in 19th century Finland.
Keyword: Ecology and Evolutionary Biology
In all vertebrates, mothers transfer variable amounts of hormones into eggs and embryos, which influence development and traits of offspring in later lives. In a recent study the researchers looked at the transferred hormones in different bird species eggs, and found a hundredfold difference in the thyroid hormones, which control development and growth in birds. Migratory and precocial bird species provide the highest levels of thyroid hormones to their offspring.
A study of semi-captive Asian elephants in Myanmar has found that calves benefit from having older sisters more than older brothers. The findings are published in the British Ecological Society’s Journal of Animal Ecology.
Longer Relationship Between Elephant and its Handler Improves their Co-operation During Working Tasks
An international team of researchers have studied a timber elephant population in Myanmar and discovered that Asian elephants perform better at a task when they are commanded by a handler they have known for a longer time.
An international team of researchers has studied individual differences in the behaviour of red deer. They found that several observed behaviours form a personality component, which they labelled “Confidence/Aggressiveness”.
DNP, a weight loss agent withdrawn from the market in the late 1930s due to acute toxicity, has become increasingly popular in recent years through online illegal sales. A new study using a lifelong DNP treatment in an avian model found that while no obvious toxic effects were detected on the short to medium-term, DNP reduces lifespan by 20% on the long run.
The environment we experience in early-life is known to have major consequences on later-life health and lifespan. A new study led from the University of Turku using an avian model suggests that increased prenatal exposure to maternal thyroid hormones could have beneficial effects on the ‘biological age’ at birth.
Climate change pushes species distribution areas northward. However, the expansion of species ranges is not self-evident due to e.g. habitat degradation and unsustainable harvesting caused by human activities. A new study led from the University of Turku suggests that protected areas can facilitate wintering waterbird adaptation to climate warming by advancing their range shifts towards north.
Women who have experienced childhood trauma become mothers earlier than those with a more stable childhood environment shows a new study conducted in collaboration between the University of Turku and the University of Helsinki. The trauma children experience form living in war zones, natural disasters or perhaps even epidemics can have unexpected effects that resurface later in their lives.
Elephant Welfare Can Be Assessed Using Two Indicators – And Non-experts Can Help Evaluate Animal Stress
In two new studies, scientists from the University of Turku, Finland, have investigated how to measure stress in semi-captive working elephants. The studies suggest that both physiological and behavioural approaches can be used to reliably assess the wellbeing of semi-captive Asian elephants.