Dogs in an unfamiliar territory hate to be left alone.
Until they have been trained to accept your comings and goings, they will certainly think that they are being abandoned.
Your dog will convey these insecurities by barking or howling whenever you leave.
There are many techniques to curb this behavior but few work as they should.
Here's some great dog training tips that work quickly to help your dog accept it when you have to leave: The best way to help your dog feel comfortable alone is to give it something else to do while you're gone.
Provide your pet with toys to keep him occupied or a digging pit if you have space in your backyard.
If you have more than 1 dog, they can usually keep themselves amused without you.
To stop your dog's separation anxiety, you should set aside some time daily to provide him with undivided attention and play.
If your dog is well exercised and content, he will be happy to sleep for most of the time you are gone.
If possible, you want to make this play time shortly before you have to leave.
Do lot leave immediately after play time, as your dog will still be excited and hyperactive.
Let him calm down before you leave and do not make your exit seem important, simply walk out.
If your dog still cannot get over it's separation anxiety, you will want to leave and return many times per day for short intervals.
This is simply to teach your dog that when you leave, you always return.