Resource Guarding in Dogs

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Shell & Katy Updated 1 March 2023 · 9 Min Read

Shell & Katy are two style-savvy dog mums celebrating the best in pet-friendly living. A pet photographer and dog lifestyle writer, together they share trending pet products, recipes, inspiration and expert tips with discerning dog lovers around the world.

Resource guarding in dogs is more common than most people realize, and it is definitely not easy to live with. When your sweet, gentle dog suddenly seems like a completely different animal at mealtimes, it can be quite the shock.

We know this firsthand. Ever since adopting our cocker spaniel Ziggy, he has shown signs of food aggression around bones. Recognizing that trigger made a real difference in how we managed his behavior, and it was something we thought carefully about when bringing home our second dog, Sunny. (We put in the training work before Sunny arrived, and it made all the difference.)

Prevention is always better than cure. The earlier you understand the signs of resource guarding and take action, the better the outcome for your dog and your household.

Here, Sydney-based dog behaviorist and trainer Sophia Gillis shares the common causes and signs of resource guarding, along with her expert tips for preventing and addressing this behavior before it becomes a serious problem.

Quick answer: Resource guarding in dogs is when a dog uses threatening or aggressive behavior to protect something it values, including food, toys, resting spots, or even a person. It is a natural survival instinct, but in a home setting it needs to be actively managed. The most effective approach combines early prevention, positive reinforcement training, and support from a qualified dog behaviorist if the behavior has already started.

What Is Resource Guarding in Dogs?

Resource guarding is when a dog uses avoidance, threatening, or aggressive behavior to protect something it values from another person or animal. Also known as possessive aggression, it can involve food, toys, chew bones, resting spots, or even a favorite human. It is a normal behavior rooted in survival instinct. In the wild, dogs who protected their resources were more likely to thrive. But in a home setting, it is something that needs to be recognized early and managed thoughtfully.

Resource guarding can show up in dogs of any breed, age, or background. It is just as common in rescue dogs as in dogs from breeders, and just as likely in a calm adult dog as in a boisterous puppy. No dog is immune.

Dogs may resource guard:

• Food, treats, and their bowl (even an empty one)
• High-value chews and bones
• Dog toys, including stolen household objects like socks or shoes
• Preferred resting spots, including the couch or your bed
• Their owner (from other pets or people)
• Other household animals they have bonded with

Signs of Resource Guarding in Dogs

Resource guarding exists on a spectrum, and the early signs are easy to miss. That is a problem, because recognizing mild behavior before it escalates is one of the most effective things you can do as a dog parent.

Subtle early signs to watch for:

• Eating noticeably faster when you approach
• A sudden freeze or stillness over the item
• Crouching low to position the body over the resource
• Subtle weight-shifting to block access
• Tracking you with side-eye as you approach

More overt signs that require immediate attention:

• Showing teeth or raising the lip
• Low, sustained growling
• Lunging or air snapping
• Biting

It is worth noting that a growl is your dog communicating discomfort, not a challenge or a personality flaw. Suppressing it through punishment is counterproductive and can actually lead to biting without warning next time. Treat the growl as an early alert that something needs to change.

What Causes Resource Guarding?

Resource guarding is a fairly common behavioral issue that affects puppies and dogs of all ages. It often surfaces in homes with young children or multiple pets, but it can develop anywhere.

Puppies are more prone to developing food aggression or toy guarding when:

• They are not properly supervised during meals and play before leaving their litter
• They grow up in a home without enough structure and calm leadership

Adult dogs can begin guarding suddenly, even if they have always seemed easy-going. A change in routine, the arrival of a new pet, or periods of stress can all trigger guarding behavior at any age. Some dogs guard because they are afraid of losing access to something they value. Others have simply learned over time that guarding works.

One important note: resource guarding has nothing to do with dominance. It is an anxiety-based survival response, and training approaches that rely on asserting dominance or using punishment will make the behavior significantly worse. Positive reinforcement is the only approach that actually addresses the root cause.

How to Prevent Resource Guarding in Dogs

The single most effective approach to resource guarding is preventing it from developing in the first place. That means setting your dog up for success from day one and maintaining consistent habits as they grow.

Sophia recommends starting with these self-check questions:

• Can you give your dog the quiet space it needs to eat, play, and rest without interruption?
• Are you treating your dog like a stuffed toy, picking them up or handling them whenever you feel like it, rather than on their terms?
• Have you created dedicated safe spaces in your home where your dog can rest and eat without being disturbed?
• Do you know what the early warning signals of resource guarding look like, and how to address them before they escalate?

Make Training a Priority

If your dog is showing even mild signs of possessive aggression, do not wait. The sooner training begins, the more manageable the behavior is to address. A dog that bites a child over food is, in nearly every case, the result of unaddressed guarding that was allowed to escalate over months or years. Prevention through consistent, patient training is far less stressful for the whole family, including your dog.

For puppies especially, the habits formed now are the patterns you will live with later. Whether you work with a qualified dog behaviorist or commit to a solid home training routine, the investment is absolutely worth it.

Practical Tips to Desensitize Your Dog

Here are Sophia's specific recommendations for desensitizing and counter-conditioning your dog to prevent resource guarding:

• Give your dog a quiet, low-traffic area for mealtimes. Meals should be calm and free of interruptions from people or other pets.
• Where appropriate, introduce hand feeding so your dog learns to associate your presence near their food with good things. Skip this if your dog has severe guarding tendencies already or comes from a rescue with an unknown history.
• Hold large chews and encourage your dog to enjoy them while you hold the end. This builds positive associations with you being close to their prized items.
• In a multi-pet household, do not give high-value treats or chews unsupervised. Section pets off during mealtimes so each animal can eat at their own pace without tension.
• Practice trading: when you need to take away your dog's bowl or a chew, offer something of equal or higher value in return. This teaches your dog that giving something up always leads to something better.

Desensitization takes consistent practice over time. The results will not come overnight, but they do come. Stick with it.

If Your Dog Has Already Started Resource Guarding

If your dog is already showing signs of guarding, including growling or baring teeth, the most important step is to get ahead of it now rather than hoping it passes on its own. Sophia's first recommendation in every case is to consult a qualified dog behaviorist or trainer as soon as possible. In the meantime, here is what to do and what to avoid.

What to Do

• Teach the "leave it" or "drop it" command using positive reinforcement, with praise and treats as the reward. This gives you a reliable, low-conflict way to redirect your dog from any high-value item.
• Make the most of positive reinforcement. When your dog does not react negatively to your approach near a valued item or space, praise them clearly and enthusiastically. You want your dog to understand exactly what behavior earned that response.
• Practice trading consistently. Offer something of higher value than what they currently have, and over time your dog will associate giving something up with getting something better.
• Seek out resources written by qualified professionals, not forum posts or social media groups. Quality of information matters when you are working through a behavioral issue as serious as this one.
• If training feels over your head or you are not confident, get professional help rather than attempting to correct a severe behavior on your own.

What Not to Do

• Do not punish your dog in any form. Punishment removes the warning signal without addressing the underlying anxiety, and it almost always makes the behavior escalate.
• Do not withhold meals. This increases anxiety and raises the perceived value of food, making guarding more intense.
• Do not continue giving your dog access to the couch, bed, or other resting spots if they have started guarding those spaces from you. This is not about winning a power struggle. It is about keeping everyone safe while you work through the training properly.

Resource guarding in dogs can have a real impact on your relationship with your pet, the atmosphere in your home, and the safety of everyone in the family. It is a behavior that deserves to be taken seriously, and it is one that genuinely responds to consistent, compassionate training.

We hope Sophia's expert guidance leaves you with a clear starting point: understanding what you are dealing with, recognizing the warning signs early, and knowing exactly what to do (and what not to do) if the behavior has already started.

For more on building good habits at home, take a look at our guides on stopping leash pulling, managing puppy jumping and biting, and keeping your dog mentally stimulated. A well-exercised, well-engaged dog is almost always a calmer, happier one.

Best of luck from us!

References and additional reading:

1. Body language of fear in dogs, Dr. Sophia Yin: hshv.org
2. Food guarding in dogs, ASPCA: aspca.org
3. Mine! A Practical Guide to Resource Guarding in Dogs by Jean Donaldson (available on Amazon)

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About Sophia Gillis

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Sophia Gillis has been working professionally with dogs and cats for over 13 years as a dog behaviorist, veterinary nurse, and practice manager. Sophia currently runs her own business with her trusted team, providing behavioral consultations and dog training, as well as running a doggy daycare service focused on controlled socialization. She strongly believes in contributing to her local community and fostering good relationships with her clients. Sophia is pictured here with Mush, her adopted Maltese x Shih Tzu x Toy Poodle. Image credit: Sarah Van Treel.