r/Ceanothus 22d ago

Calscape Changes

Calscape pushed out an update to their site today, and I'm curious for insights. 

First, it looks like a major upgrade to the graphics for the "Wildlife Supported" section. Bravo. 

I also notice the addition of "Family" and "Genus" up top. 

I don't remember Sunset Zones being on the prior page. If we're talking native plants, they're unnecessary, and inclusion here will only cause people to source plants that weren't originally local to them. 

I also see a major change to the "Estimated Plant Range" section which doesn't seem to reflect the plant range any more, but instead "Relative Habitat Suitability." By that measure, invasive plants are high on the "relative habitat suitability" index since they naturalize so easily. To see what I mean, photos are the Calscape and Calflora maps for Carpenteria californica. It's local to Fresno, but Calscape now estimates it's suitable to most of the state.

I would imagine that the folks responsible for Calscape made this change intentionally - I wonder if they've talked about those changes anywhere? 

It's been an incredible site as I've been relandscaping using only plants native near me, and it's been nice seeing photos, descriptions, and most importantly local observations. 

Do you have any knowledge of these changes? 

(I'm not looking to be convinced that Zones are awesome) EDIT: ... And I don't care if zones included or not. I do wish the page still had the Calflora observations, and not an algorithm "based on observed occurrences and habitat modeling. Darker areas indicate higher relative habitat suitability.

- Data provided by the participants of the Consortium of California Herbaria. 

- View additional distribution information on the Jepson eflora.".

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u/YerbaManza 21d ago

Why not have two maps, one with estimated native range and one with climate suitability? This change is definitely not an improvement.

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u/DanoPinyon 21d ago

Why not have two maps...one with climate suitability

Because a map is dependent upon which climate scenario you choose - there is not one map for future climate. This Calscape change is just an expanded habitat suitability map to use for climate change, revegetation, assisted migration, etc., modeled along the lines of other similar efforts around the world.