Badgers, hedgehogs, foxes and cats are fighting and having stand-offs over food left out in people’s back gardens across Britain, a study has revealed.
Experts at Brighton University and Nottingham Trent University analysed hundreds of videos – recorded by the public – to investigate interactions within and between different species.
The study, published in the journal Animals, also involved researchers from Sussex University and the Spanish National Research Council.
They found that while food left by people in urban gardens – leftovers or bought for this purpose – can provide benefits for wild animals, it can also draw competitors and predators close together.
The animals displayed a number of aggressive behaviours, including lunging, biting, striking out – and in one case a hedgehog was pushed into some water.
According to the study, badgers tended to dominate other species in the garden hierarchy while hedgehogs had more clashes than expected.
The footage revealed more aggressive and submissive behaviour among animals than neutral interactions.
From 316 instances where animals were spotted together, 175 ended in confrontation.
Researchers also found that creatures were more likely to confront different species than their own.
Cats and foxes appeared to take a particular disliking to one another, with more than three quarters of interactions (77 per cent) sparking some form of aggressive or defensive reaction – with cats dominating foxes.
Badgers were stronger than all other species in the contest for food – and to the research team’s surprise, hedgehogs outcompeted cats.
They said that this could be because domestic cats were not as physically or behaviourally well adapted to defend themselves against hedgehog spines as wild predators.
Within the same species, hedgehogs were found to be the most combative – with more than half (55 per cent) of interactions between them leading to some form of aggression.
This included a move dubbed the “barge and roll” by the researchers. It showed one hedgehog attack another by running at it, causing the victim to roll up before being pushed away by the assailant.
Researchers suggested that the purpose appeared to be to move a rival away from the food such as to the edge of the garden.
In one instance a hedgehog was pushed down a flight of concrete and another into water.
Within species, badgers were the least competitive with one another, with just 7 per cent of encounters resulting in a stand-off.
Lead researcher Dawn Scott, from Nottingham Trent University’s School of Animal, Rural and Environmental Sciences, said: “Food provided by people may help wild animals but may also attract animals together that could compete, injure or predate each other.”
Professor Scott added: “The consequences of interactions between garden mammals are numerous and can become aggressive between competing species.
“It could lead to injury or death and increased competition might also reduce access to resources for subordinate species or individuals.
“Our study is the first to quantify interactions between urban mammal communities in this way and to identify hierarchical relationships between wild and domestic mammals in urban gardens.
“We need to better understand interactions between urban animals and the potential effects of providing food in this way to ensure any potential risks are minimised.”
Dr Bryony Tolhurst, from Brighton University, said: “Feeding wildlife in gardens can also potentially unwittingly increase disease transmission between wild animals, and between wildlife and pets, by gathering them together.
“We need to understand the balance of costs and benefits of feeding animals in urban gardens to properly guide people on how best to improve their welfare and conservation.”
What’s supposed to be new about this? Living creatures have been competing for food (aka the food chain) since they came into existence. If food is easy to come by animals, birds and insects will try to get it and bully others out of the way.
I would have thought that observing the Humans throughout Brighton would have been more informative! 🙂
Were there any rats involved
My stupid neighbours keep feeding foxes on a regular basis and don’t seem to care about the problems the foxes are causing to other people’s gardens. Gardens are getting badly dug up with huge holes and mug everywhere. 3 people in the area at different houses have had rats in there gardens. But the council are not doing enough to stop these unreasonable tenants. How selfish some people are.