Location guarding

[Natasha]

Hi all! I’m hoping you can give me some advice. 
 

We have recently rehomed a new 3 year old female greyhound into our home with an existing greyhound male who is 9 years old.
 

Everything was going so well, she settled really quickly, she is already giving us kisses and tail wags and doesn’t have the sleep startle that paddy had once he first came to us. However we are starting to see location guarding from her towards the dog beds directed at the male greyhound. The first occurrence happened when I was working from home with my back turned to the dogs. I heard a growl and turned round to see the female grey lying down in paddy’s bed (between armchair & sofa) but staring at the male who walked past. I thought maybe she was startled in her sleep by him and so didn’t think anything of it.

She is very food driven so we have to eat at the diner table otherwise she tries to take our food from the table. We have been working on this and she is getting better but we decided to shut the door to the dining room last night for ease. We heard a bark in the living room and my partner went in to see what was happening. Our male greyhound was in his bed (between the sofa & armchair) and she was standing over him growling. She stopped growling once she saw my partner but barked at paddy again. My partner told her no and told her to get into her bed (she hasn’t learnt the word bed yet but we are trying to train her so keep using it! Both of these occurrences happened in paddy’s bed which she has decided is hers. She does sleep in the other bed by a bay window so equally enclosed but if our greyhound tries to go back into the bed she jumps up out of her bed and tries to take it. 

At first we thought it was because she didn’t like the bed I bought for her so I returned it and got the exact same orthopaedic dog bed that paddy has so they both have the same one. They are positioned on either side of the sofa we sit on. 

She has really attached herself to me, following me everywhere. She is less sure of my partner but still gives him kisses and has never once displayed this behaviour with us when we approach her in a bed.

We have have had paddy for 5 years, he is so placid and calm so we are concerned about how this behaviour is affecting him, as he won’t naturally assert his authority over her. I am conscious that we have two packs (I am the overall pack leader and both seem to respect that) but I can’t intervene with who is their pack leader between themselves.
 

How do we train pearl to limit this behaviour and is this something that will resolve with time & training?