Sci-Fi: Story about an astronaut and telepathic feline-like aliens

Question

I read a series of books when I was younger, about 20 years ago. And I can't for the life of me remember one title, or the writer. So I'm asking for your help.

Things I know:

1. The writer was Scandinavian. Or a name that looks/sounds Scandinavian
2. I read the Dutch translations. So I don't know if English versions exist.
3. A man lives and works in a giant dome on a planet that is not Earth.
4. I think the planet is Venus.
5. The atmosphere is hazardous to some materials. The planet is jungle-like.
6. One day during maintenance the man has an accident and is unconscious or something. He would die if he doesn't get back into the dome. He doesn't make it, and the atmosphere eats away his protective gear. He doesn't die; instead his lungs adjust to the atmosphere. He can walk around the planet naked just fine. Basically everything that is not biological corrodes away.
7. He discovers indigenous species that look like large cats or panthers. They seem to communicate telepathically. He can either hear them if they "speak" to him, or they understand him telepathically.
8. He forms a bond with one of the aliens.

The rest is pretty hazy, but I hope someone read these books as well and can point me into the right direction.

EDIT: some vague details I remember:

9. The aliens live in a large cave system.
   10. There was something about hunting. Since they were a predatory species (like cats) they talk about attacking from down-wind. But because they are telepathic, they could attack larger enemies by coordinating the attacks.

Answer 1

There are a lot of parallels, as well as a lot of mismatches, but my best guess is "Sentenced to Prism", by Alan Dean Foster.

The premise of the story is a handyman/adventurer is sent to an unknown world to figure out why a scientific colony sent there to determine it's colonization or mineral worth has stopped reporting in.

He is sent in with a high level hazard exoskeleton, which degrades in short order. He has to abandon it, even though he doesn't think he's going to survive without it. He ends up making mistakes and has to be rescued by one of the local intelligent life forms. He forms an attachment to this creature for most of the rest of the book.

The local intelligent community talk through a version of radio frequency, which he has to use a wireless implant to understand. They help him and vice versa. Many of the creatures are explained to be about large cat or dog sized, but they range in many sizes, shapes, and function.

I'm not going further than this, so I can avoid any spoilers. Hopefully I've described enough for the OP to decide if this is the book or not. It's a great novel, but I'm not sure it's a match. It's close, though.

Edit: The alien that saves the MC's life acts like a cat. It sits on his shoulder to maintain "wired" communication until the implant can be made, and sleeps on or near the MC, since his silicon body works better at night with the MC's body heat, which the alien doesn't produce.

Answer 2

From this answer:

you might mean Torenhoog en Mijlenbreed by Tonke Dragt (translated to German as Turmhoch und meilenweit. Ein Zukunftsroman). This story includes the desintegration of unnatural materials, like some clothing. Cotton clothes, for instance, remain intact. The Venusians are telepaths and only a few humans have enough ability to understand them. The main character's name is Edu.

This was not a series though; it was just the one book and a sequel: Ogen van Tijgers.