I’m excited to announce the publication of my “Two types of hatching glands…” paper in the wonderfully historical Biological Journal of the Linnean Society – one of the oldest biological journals.
Here, we document that red-eyed treefrogs are the first example of a frog with two types of hatching gland cells! This paper represents a huge amount of work and would not have been possible without wonderful collaborators. Karen and Mike, my co-authors were amazing. I also want to specially acknowledge Jorge Ceballos who spent countless hours on the electron microscope with me as I studied these specialized cells over YEARS in Panama. Muchas gracias por el apoyo con el proyecto, Jorge!!!
I’m thrilled that my 2nd paper from my dissertation is now out (online) in Comparative Biochemistry and Physiology Part A. You can check out the online version here!
I’m so proud of this paper because at first glance you might call it “negative results”. We tested two hypotheses about hatching regulation in Dendropsophus ebraccatus and didn’t find either hypothesis supported. However, we also report important results characterizing the hatching process in this species and the partial sequences of two anuran hatching enzyme mRNA transcripts. Thanks to all my amazing collaborators who made this paper possible!
What better way is there to cap off a week at the ABS meeting than to have a paper come out in Animal Behaviour? Check out our new paper about the developmental onset of escape hatching in response to two cue types!
Warkentin, K. M., Cuccaro Diaz, J., Güell, B. A., Jung, J. J., Kim, S.J., Cohen, K.L. (2017). “Developmental onset of escape-hatching responses in red-eyed treefrogs depend on cue type.” Animal Behaviour 129: 103-112.
On May 16, I successfully defended my dissertation, “Anuran hatching mechanisms and their role in adaptive plasticity.” I was happy to celebrate this with both my undergraduate advisor, Doug Fraser, and my Ph.D. advisor, Karen Warkentin. Thank you to all my friends and family who were there to support me!
This semester I have the opportunity to serve as a mentor to 4 new Teaching Fellows at Boston University. So far the experience has been incredibly rewarding. I have learned so much from observing my mentees in the classroom. It has served to inform me about my own teaching in the process of evaluating theirs.
Teaching is like software: it requires frequent updates! After being out of the classroom for two years, I’m happy to have this opportunity to reflect on my own teaching methods while helping new teachers hone their skills.
Our paper is out in Journal of Experimental Biology!
This paper is about how red-eyed treefrogs hatch early to escape snakes!
Here is the pdf of the article: cohenetal2016jexpbio
And here is the video abstract
I’m happy to announce that my first dissertation paper has been accepted to the Journal of Experimental Biology. Keep an eye out for “How embryos escape from danger; the mechanism of rapid, plastic hatching in red-eyed treefrogs”.
In 2015 I was honored to receive recognition for my service as a Teaching Fellow at BU. Thanks to Meredith Canode for this lovely writeup.
“Kristina was nominated by Professors Sean Mullen, Fred Wasserman and Karen Warkentin, for her outstanding contributions to all areas of teaching in the Department of Biology over the last five years. All of her letter writers were full of praise and admiration. Professor Mullen writes “To say that Kristina did an outstanding job is, frankly, an understatement – she was an absolutely critical component of what made the course successful”. Professor Wasserman writes simply “She is as good a teacher as any of the Teaching Fellows I have had during my 38 years at Boston University”. Kristina’s dedication to and enthusiasm for teaching is clear, not only in the classroom but in all aspects of modern university teaching.
Outside of the classroom, Kristina has been instrumental in the inclusion of a Research Experience for Teachers (RET) component in one of Professor Warkentin¹s funded NSF projects, and leveraging the RET for greater impact via collaborative development of resources for high school science teaching. She has also been superb in the mentoring of many undergraduates in Prof. Warkentin’s lab at BU and in the field in Panama, helping them with UROP applications, research, conference presentations and their personal growth and development. Professor Warkentin writes “Her (Kristina’s) skill, effort, dedication, and performance as a teacher, and her vision for improving pedagogy more broadly have been clear throughout her time at BU”.