Possessive behaviour and resource guarding are phrases that have been used interchangeably by dog professionals for years. A study to define what that means came up with the definition of “the use of avoidance, threatening, or aggressive behaviours by a dog to retain control of food or non-food items in the presence of a person or other animal.”
This means that possessive aggression can occur in a number of different situations. It’s always linked to a resource but those resources can range from food to toys, physical space or even particular people. Sometimes it will happen over their own resources or it can be a new resource they’ve stolen from you which can make it even more valuable. Dog possessive aggression can look different from case to case. Very minimal signs may be just that your pup stops eating or eats faster when you pass their food bowl. These behaviours can develop into becoming avoidant like walking away with whatever resource they’re trying to protect.
If you were to follow them and try and get an item from them, say they stole your shoe and didn’t want to give it back, this is when you might see behavioural signs like teeth baring, growling and snapping. All of these behaviours are to tell you to give them and their resource space and if you don’t listen it can further escalate to bites. The sooner you can address the behaviour, the more likely it will be to work with your pup to irradicate it.
Why dogs can become possessive
If you want to learn how to stop a dog being possessive, you first need to understand why it occurs. Research has taught us that that while all dogs may have an instinct to protect what is theirs, anxiety is a big factor in what makes them use aggression to protect it. This suggests that like many behavioural issues, genetics plays a big role. An anxious parent will usually pass on some of these traits to puppies. You can prevent creating an environment where a pup might learn to guard their resources, if they are high anxiety, it could still be a risk.
Another risk factor is learned behaviour. A dog’s experiences throughout their life will shape how they behave in the future. Dogs who are around children or who live in multi-dog households are more likely to develop resource guarding issues because their resources are more likely to be removed from them. If you’re eating a slice of pizza and someone walks past and takes it off you, you’re likely to be bewildered the first time it happens. If it happens again you might try to eat it somewhere nice and quiet. If it continues to happen you’re going to become more antsy and potentially even aggressive towards this thief. The same happens with dogs, if they learn that what they have might get taken away then they can become protective if they think their resource might be at risk.