recreating biomes one label at a time
TRANSCRIPT
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Recreating biomes one label at a timeKatja C. SeltmannAmerican Museum of Natural [email protected]
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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.
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Historical Ecology
What we grow up with today ends up as the baseline for our viewpoint of “nature” in the future.
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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
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Calculating host specificity
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Digitization of Hemiptera
Present Dataset: Over 1,011,627 Total SpecimensDate Range: 1811 – Present124 total insect families
Unique collecting events/ insect family
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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
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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.
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• 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
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Acknowledgements
•TTD-TCN project PIs, digitizers and managers•Randall T. Schuh•National Science Foundation•iDigBio and www.datacarpentry.org•Museum collections and curators worldwide