Tag: species distribution models

SCIENCE BRIEF – High ranking priority conservation areas concentrated in the Klamath-Siskiyou Bioregion

Areas where the density-based Zonation analysis produced high rankings were concentrated in the southwest of the study area in the Klamath-Siskiyou Bioregion.

A new paper published in the journal Conservation Biology presents results from a novel conservation planning approach.  This approach uses detailed data that predict the density of bird species across landscapes, as opposed to probability of occurrence models more typically used in conservation planning.  These density-based models are better suited for identifying the highest priority conservation areas.  The models were used to identify priority conservation areas in the Pacific Northwest.  The results show a concentration of high ranking conservation areas in the Klamath-Siskiyou Bioregion.  The Klamath-Siskiyou Bioregion is recognized as an area of great biological diversity and as an important area for avian diversity.  This new paper further demonstrates that the Klamath-Siskiyou Bioregion stands out as an important area for conservation focus.

This newly released Conservation Biology paper, titled Improving Effectiveness of Systematic Conservation Planning with Density Data represents collaboration among scientists from Klamath Bird Observatory, American Bird Conservancy, and Point Blue Conservation Science and was made possible with funding from the North Pacific Landscape Conservation Cooperative and data contributed from many Avian Knowledge Network partners.

Collaborative Partnerships and Data Sharing Result in Novel Approach for Better Conservation Planning


June 17, 2015

Contact: John Alexander, jda [AT] klamathbird.org, 541-201-0866 x1#

A recent study published in the journal Conservation Biology makes a strong case for a new approach to conservation planning that uses much more robust data sets in order to better protect birds, plants, and animals. The concept is fairly simple, but won’t work unless scientists can agree to share data across studies.

“Right now, we primarily only use presence and absence data for species when conservation planning for large landscapes. Much of this is due to the cost and time of collecting more comprehensive data,” said the study’s lead author, Sam Veloz, climate adaptation group leader at Point Blue Conservation Science. “We can do a much better job of conservation planning if we include data on individual species richness, not just whether they are present.”

To illustrate this point, a research collaboration including authors from Point Blue, American Bird Conservancy, and Klamath Bird Observatory encouraged partners to make their detailed bird observation data accessible through the Avian Knowledge Network.  Members of the Oregon/Washington Partners in Flight bird conservation community rallied to the call and over 900,000 new bird observations from 23 different studies were contributed to the Avian Knowledge Network through the Avian Knowledge Northwest node.  These data were then combined with bird data from the California Avian Data Center and used to develop both presence/absence species distribution models and density models covering coastal Northern California, Oregon and Washington for 26 species of land birds representing four different habitat types.  These models are freely available as part of the Pacific Northwest Climate Change Avian Vulnerability Tool available at Avian Knowledge Northwest.

To demonstrate the value of this large and detailed dataset, the Point Blue, American Bird Conservancy, and Klamath Bird Observatory researchers mapped conservation priority areas based on both the presence/absence and density models and compared the estimated population size protected in priority areas mapped using each method. “As expected, we found that the prioritizations based on count data protected more individuals of each species than the prioritizations based on presence/absence data in the areas of highest conservation priority,” Veloz said.

Veloz sees the main challenge is getting scientists from across the conservation spectrum to share their high-quality count data of individual species, no matter the study size, so planners can have as broad a dataset as possible when drawing up conservation plans. “This study shows the value of researchers sharing their data. We can combine and recycle data from multiple studies, and re-use it to answer larger conservation questions,” Veloz said. “If we all worked together to share data, we could better prioritize and protect important habitat.”

This study was funded by the North Pacific Landscape Conservation Cooperative.

To access this paper click here:

ConBi Paper

Full citation: Veloz, S., Salas, L., Altman, B., Alexander, J., Jongsomjit, D., Elliott, N., Ballard, G. 2015. Improving effectiveness of systematic conservation planning with density data. Conservation Biology. http://onlinelibrary.wiley.com/doi/10.1111/cobi.12499/abstract.

This news release adapted from Point Blue Conservation Science June 10, 2015 Press Release.


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