3 ms·

There's a real problem in the US with cities that are near the US border. It's hard for anything to get done across the border by US entities. At least that's m

There's a real problem in the US with cities that are near the US border. It's hard for anything to get done across the border by US entities. At least that's my hunch. Can anybody confirm if this happens with other near-border cities? San Diego is located within an awesome ecosystem with a lot of fascinating native plants and animals. A lot of research into native stuff never crosses the border despite the fact that better data is often over there. https://en.wikipedia.org/wiki/Xylococcus_bicolor https://en.wikipedia.org/wiki/Xylococcus_bicolor is one my favorite native plants. Notice how the image of the native distribution just stops at the border.

viraptor 3y ago
I'm not at all surprised that "Natural distribution of Xylococcus bicolor in California." shows the distribution stopping at the border of California. The text actually says "It is native to southern California and the Baja California Peninsula, south to the Sierra de la Giganta." so the known data does extend beyond the border.
- sosodev 3y ago
  I recognize that my initial example may have been ill-chosen since the Calflora range tool stops at the border, despite having data beyond it. However, the actual known data does support my point. In the Calflora database, six percent of the Xylococcus Bicolor observations extend beyond the border. Most of these are dated, and the plants may no longer exist. Filtering for observations that are more recent than 1990, the number falls closer to two percent beyond the border. Local researchers are aware of this issue, and I've come across it in various research papers on Xylococcus Bicolor. This thesis on the region's ethnobotany frequently cites the border as a cutoff or dividing line in research. https://www.sandiegocounty.gov/content/dam/sdc/pds/ceqa/JVR/AdminRecord/IncorporatedByReference/Appendices/Appendix-E---Cultural-Resources-Report/Wilken%202012_Ethnobotany%20of%20Baja%20California.pdf https://www.sandiegocounty.gov/content/dam/sdc/pds/ceqa/JVR/... If you're truly curious the author of that thesis expanded his work into the book "Kumeyaay Ethnobotany: Shared Heritage of the Californias" that looks more closely at these issues.

viraptor 3y ago

I'm not at all surprised that "Natural distribution of Xylococcus bicolor in California." shows the distribution stopping at the border of California. The text actually says "It is native to southern California and the Baja California Peninsula, south to the Sierra de la Giganta." so the known data does extend beyond the border.

sosodev 3y ago
I recognize that my initial example may have been ill-chosen since the Calflora range tool stops at the border, despite having data beyond it. However, the actual known data does support my point. In the Calflora database, six percent of the Xylococcus Bicolor observations extend beyond the border. Most of these are dated, and the plants may no longer exist. Filtering for observations that are more recent than 1990, the number falls closer to two percent beyond the border. Local researchers are aware of this issue, and I've come across it in various research papers on Xylococcus Bicolor. This thesis on the region's ethnobotany frequently cites the border as a cutoff or dividing line in research. https://www.sandiegocounty.gov/content/dam/sdc/pds/ceqa/JVR/AdminRecord/IncorporatedByReference/Appendices/Appendix-E---Cultural-Resources-Report/Wilken%202012_Ethnobotany%20of%20Baja%20California.pdf https://www.sandiegocounty.gov/content/dam/sdc/pds/ceqa/JVR/... If you're truly curious the author of that thesis expanded his work into the book "Kumeyaay Ethnobotany: Shared Heritage of the Californias" that looks more closely at these issues.