-
Recent Posts
Archives
- February 2021
- April 2020
- November 2019
- May 2019
- January 2019
- September 2017
- December 2016
- November 2015
- August 2015
- April 2015
- March 2015
- August 2014
- June 2014
- February 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
Categories
- Academia
- Art & Science
- Beetle of the Week
- Collecting Site of the Day
- Fieldwork
- fun stuff
- Language
- Mesquite
- Miscellany
- Morphological Techniques
- Musings
- Public Engagement & Citizen Science
- Revising Bembidiina
- Scientific Illustrations
- Software Development
- Taxonomic Process
- Tree of Life
- Uncategorized
- Z499 (Discovering Insect Species)
- 3D-printing
- aedeagus
- art
- Asaphidion
- Bembidiina
- Bembidion
- birthdays
- Carabidae
- carabid beetle
- carrots
- citations
- Cnemalobini
- collectors
- colored pencils
- credit
- diversity
- DNA
- DNA taxonomy
- drawings
- flight
- genitalia
- government shutdown
- Harpalinae
- heads
- ink
- labels
- lectotype
- Lindrochthus
- Lindroth
- Liocosmius
- Lionepha
- local
- macrophotography
- microsculpture
- mirrored development
- morphological structures
- morphology
- Mount Tamalpais
- museum
- museum specimens
- new species
- nomenclature
- Ocydromus
- patterns
- Peryphus
- phylogenetics
- phylogeny
- physics
- Plataphus
- potato chips
- relatedness
- revisions
- riparian
- rove beetle
- Saint Helena
- sandy shore
- scalar boson
- science
- Scientific Illustrations
- scientific process
- Sierra Nevada
- software
- species delimitation
- Sphaeroderus
- Staphylinidae
- stridulate
- talus
- taxonomy
- time management
- Trechonepha
- Trepanedoris
- type specimens
- undescribed species
- USNM
- wickhami
Author Archives: David Maddison
Discovering Insect Species: the Trepaneleven Awards!
In the Discovering Insect Species course, the eleven of us (students Alex, Ana, Danielle, Elle, Julia, Mamo, Shannon, Tom, and Trevin, plus John and me) formed a great team, and we learned a lot together. Over the course of the … Continue reading
Discovering Insect Species: Overview in Rearview
When last I blogged, the Discovering Insect Species course was in full swing; we were excitedly waiting for the DNA sequence results from our first big field trip, which was to Klamath Marsh National Wildlife Refuge. I’m sorry I didn’t … Continue reading
Discovering Insect Species: DNA magic in Arizona
I got the email from FedEx saying that our package of four plates of 384 PCR samples had arrived at the University of Arizona, where they will be sequenced. These plates contain the DNA from multiple genes from over 120 … Continue reading
Discovering Insect Species: the beetle DNA heads south
In an earlier post, I outlined the steps we took to extract and amplify DNA from the beetles we collected in the Discovering Insect Species field trip to Klamath Marsh. As mentioned, the students extracted DNA from 36 beetles, … Continue reading
A nematode-filled Bembidion canadianum
Shannon, a student in the Discovering Insect Species course, went down to Eugene last weekend and looked for Trepanedoris. To say that she did well would be an understatement. She caught all four species that I had seen from the … Continue reading
Posted in Revising Bembidiina, Z499 (Discovering Insect Species)
Tagged Bembidion, nematodes, Trepanedoris
2 Comments
Discovering Insect Species: preparing beetle DNA
Over the last couple of weeks in our Discovering Insect Species course we have been processing samples from our Klamath Marsh trip, and worked with the DNA of the beetles. Here’s a bit of what we have done. Extracting the … Continue reading
Posted in Revising Bembidiina, Uncategorized, Z499 (Discovering Insect Species)
Tagged Bembidion, DNA, DNA taxonomy, Trepanedoris
2 Comments
The Bembidion acutifrons story
There are a number of subgroups within Bembidion subgenus Trepanedoris whose structure of gene flow and species boundaries are not understood. The morphological data indicates several forms within these subgroups, but whether this variation is indicative of separate species is not yet … Continue reading
Discovering Insect Species: Klamath Marsh!
We had a great trip last weekend to the Klamath Marsh National Wildlife Refuge as part of our Discovering Insect Species course. One of our main goals was to see what species of Trepanedoris lived in the large marshland complexes of southern … Continue reading
Discovering Insect Species: state of the art in Trepanedoris
As mentioned in my previous post, I outlined the state of the art in Trepanedoris research to the students in my Discovering Insect Species course. Here’s the story I told them. (As the class will be focusing on Trepanedoris in … Continue reading
Discovering Insect Species: hands-on with Trepanedoris
I’m a bit behind in posts about the Discovering Insect Species course, because so much has happened so quickly. Last week we examined our catch from the local field trip and learned how to prepare specimens, and we learned the state of … Continue reading
David Maddison