Month: April 2023

By Begoña Pérez-Cabezas, ICBAS

PORTO - Biodiversity refers to all the living species (and its interactions) on Earth, including plants, animals, bacteria, and fungi. Whenever preserved, biodiversity forms balanced ecosystems that are the basis of a sustainable planet. The quality of the ecosystems translated in the quality of the air we breathe, the food we eat, and the water we drink.

Plants are essential for the production of oxygen and the absorption of air pollutants. Insects are the base of many food chains, and key for the pollination and for the dispersion of seeds. Coral reefs and mangroves protect from cyclones and tsunamis, causing waves to break offshore and soaking up wave energy.

But, Biodiversity is in danger due to the human activity that disturb the ecosystems. As the human population rises, wild areas are used to create farmland, housing and industrial spaces. Pollution, unsustainable hunting and fishing, water extraction, and global trade, are also other main threats to the balance of life on our planet. The loss of species is a dramatically irreversible process and the extinction rate now is estimated to be about 1,000 times higher than before humans dominated the planet.

Increasing protected areas and performing a sustainable use and management of non-protected areas are essential for the maintenance of biodiversity. But the protection of ecosystems is also in the hands of each one of us. Most territories are cleared for the production of cattle, soy, palm oil, or wood. Reducing the consumption of these products, choosing sustainable options, and diminishing waste of consumer goods have a positive impact on the preservation of biodiversity.

Image Credits: Scotty Turner, Unsplash.

By Sofia Costa Lima, ICBAS

PORTO - Avian influenza virus is spreading in Africa, Asia, Europe, and America. Avian flu virus is a contagious influenza type A virus that can infect and kill poultry (such as chickens, domestic ducks. pheasants, turkeys, quail, among others) and wild birds (including migratory birds). Significant outbreaks have been raising, since October 2021, reaching new geographical areas and causing devastating impacts on animal health and welfare. Avian influenza can occasionally be transmitted to humans and other mammals. This infection represents a global risk to food security, animal health, and livelihoods for poultry farmers, but also a threat to wildlife on sea and land animals. Besides disrupting the local ecology outbreaks harm biodiversity.

Migratory birds are the natural reservoir for the avian influenza virus. Climate change is influencing migration routes, given the seasonal alterations. Now, migratory bird populations are coping with one another increasing the odds of new virus variants. A surveillance program to monitor the evolution and diversity of variants is crucial to prevent animal, environmental and human health. Addressing the avian influenza virus requires One Health strategy.

Now, more than ever, governments need to invest in local and global approaches that focus on the interface of animal/ human/environmental health to enable communication and preparedness responses for current and future challenges.

Image Credits: Sofia Lima

By Luísa Azevedo, ICBAS

PORTO – É bem conhecido de todos que muitas doenças crónicas aparecem como consequência da exposição a elementos mutagénicos do ar, água e solo, podendo levar a doenças graves. O cancro é, talvez, o caso mais conhecido de uma doença em que a exposição ambiental tem um efeito mais notável. Mas o cancro está longe de ser o único exemplo, uma vez que a poluição também pode aumentar o risco de muitas outras doenças. Entre eles estão problemas respiratórios crónicos, doenças de pele e doenças cardiovasculares. Como todos dividimos o mesmo ambiente, o efeito patogénico dos poluentes também pode afetar os animais, como por exemplo, os nossos animais de companhia. Nesse cenário, como adotar uma abordagem One Health para prevenir o impacto nocivo da exposição ambiental?

Taking air pollution as example, a simple way could be to reflect upon everyday choices, like travelling. Most of us uses the car, but one can choose to travel by public transports, bike or walk, whenever possible, in order to contribute to the reduction of pollutants. This is expected to aid the environmental health and have a positive impact in the reduction of the risk of acute and chronic diseases that are predisposed by the quality of the air, in both humans and animals.

Image Credits: Luísa Azevedo