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Recreating biomes one label at a timeKatja C. SeltmannAmerican Museum of Natural [email protected]
Human-mediated Disturbance
Our great loss in biodiversity that is difficult to calculate. Many efforts exist to sample a snapshot of present biodiversity as the world is rapidly changing from increased human activity.
Historical Ecology
What we grow up with today ends up as the baseline for our viewpoint of “nature” in the future.
Myzocallis (Myzocallis) castaneae
Hemiptera have declining plant hosts
Reuteria querci
Telamona reclivata
Platycotis vittata
Atymna castaneaeAtymna querci
Ophiderma flava
Cyrtolobus maculifrontis
Archasia auriculata
Myzocallis (Neomyzocallis) punctata
Calculating host specificity
Digitization of Hemiptera
Present Dataset: Over 1,011,627 Total SpecimensDate Range: 1811 – Present124 total insect families
Unique collecting events/ insect family
Heteroptera have declining plant hosts
IUCN Red List: Worldwide total plants: 34581 plant species322 Hemiptera species
USDA Plants List:(Federally listed Endangered or Threatened)
North American total plants: 752 31 plant species127 Hemiptera species
Conclusions
0.0 0.2 0.4 0.6 0.8 1.0
02
46
810
p(x|y)
# In
sect
Spe
cies red-listed
not red-listed
In this dataset (31 hemipteran species collected from USDA red-listed plants and all of their other known hosts)there is a higher probability that the insect was collected on a red-listed host than non red-listed.
19 species have a > 10% probability that they were collected on a federally Endangered or Threatened Plant.
9 species are only known to be collected on a red-listed species.
• Continue to explore new methods for examining this data (Data Science: Ontology & Machine Learning).– Explore data bias of collectors by adding Collector into
the equation of p(x|Y).– Include a third trophic level (parasitoids) into the data
analysis.– Expand to world plant host list and other insect
records outside of Hemiptera.– Include known phylogenies of insect and plant.
Future directions
Acknowledgements
•TTD-TCN project PIs, digitizers and managers•Randall T. Schuh•National Science Foundation•iDigBio and www.datacarpentry.org•Museum collections and curators worldwide
