Pischedda Lab
  • Home
  • People
  • Research
  • Publications
  • News
  • Contact
  • Home
  • People
  • Research
  • Publications
  • News
  • Contact

New paper showing longer matings increase male competitive fertilization success!

12/10/2025

 
Our new paper, led by former lab technician Avigayil Lev and co-authored by lab alum Isabella Martinez, has been published today in Biology Letters. We used hemiclonal analysis to measure the fitness consequences of prolonged matings for males during matings with non-virgin/previously mated females. We found that longer matings resulted in higher competitive fertilization success for males with these previously mated females!
Picture

New paper showing sexual conflict over mating duration!

4/15/2025

 
Our new paper, led by Isabella Martinez, has been published today in Animal Behaviour. We used hemiclonal analysis to sample naturally occurring variation in male mating duration and measure the fitness consequences of prolonged matings for both males and females. We found that longer matings resulted in a paternity advantage for males, but lowered the total number of offspring produced by females, indicating sexual conflict over this behavior. 
Read Barnard's coverage of this work here.
Picture

New paper showing genetic variation in male mate choice!

1/10/2025

 
Our new paper, coauthored by lab alums Grace Freed ('23), Isabella Martinez ('24), Avigayil Lev ('22 and current lab technician), and Ana-Maria Anthony Cuadrado ('20), has been published today in Ecology and Evolution! In this paper, we use hemiclonal analysis to document additive genetic variation in both pre-copulatory and post-copulatory components of male mate choice for large females! This project was a massive undertaking in which we measured male mate choice for over 1300 fruit flies in total! 
Check out Barnard's coverage of this work here.
Picture

Ali presents at Evolution Meeting

7/30/2024

 
Ali presented Isabella Martinez's senior thesis research today at the 3rd Joint Congress on Evolutionary Biology in Montreal, Canada. Izzie investigated the fitness consequences of variation in mating duration for both males and females, finding evidence for sexual conflict over mating duration. Click here to see a recording of the presentation!
Picture

ConGRADulations to Ananya, Izzie, and Eliza!

5/15/2024

 
​Congrats to Ananya Lahiri, Isabella Martinez, and Eliza Tagle, who graduated from Barnard today! Ananya earned a BA in Cellular and Molecular Biology, Eliza earned a BA in Physiological and Organismal Biology, and Izzie earned a BA in Biology and in Women's, Gender, and Sexuality Studies! 
Eliza, Ali, Izzie, Ananya
Lab photo!
Lab grads!
Departmental Reception

Izzie presents at the Biology Research Symposium!

5/1/2024

 
Izzie gave her senior thesis research talk today at the 2024 Biology Research Symposium. Her senior thesis work, funded by a Sigma Xi Grant, studied the fitness consequences of variation in mating duration. She began this work as a junior for her Guided Research & Seminar project. Congrats!
Picture

Izzie inducted into Phi Beta Kappa Society

4/16/2024

 
Congratulations to Isabella Martinez, who has been inducted into the Barnard Chapter of  Phi Beta Kappa Society today! Membership into this academic honor society is based on the quality and breadth of Izzie's scholarship as an undergraduate. 

Izzie & Eliza present at the SRI Poster Session

8/2/2023

 
Congratulations to Eliza and Izzie for presenting their summer research projects today at the 2023 Summer Research Institute Poster Session!
Eliza
Izzie

Izzie receives a research grant from Sigma Xi!

6/13/2023

 
Congratulations to Isabella Martinez, who was awarded a Grant-in-Aid-of-Research (GIAR) from Sigma Xi, the Scientific Research Honor Society! GIARs are awarded to students pursuing research in STEM, and Izzie will use this grant to fund her Senior Thesis Research project in the lab looking at variation in mating duration. This grant cycle, only 14% of proposals were funded, and only 15% of funded proposals were awarded to undergraduates! Outstanding work!
Picture
Picture

Ashley, Grace, Ananya and Izzie present at the Biology Research Symposium!

5/3/2023

 
Ashley, Grace, Ananya and Izzie presented their Guided Research & Seminar projects today at the Biology Research Symposium. They each gave 1-minute talks and a poster presentation about their work. 

SRI Poster Session

8/3/2022

 
Congratulations to Ashley, Grace, Ananya and Izzie for presenting their summer research projects today at the 2022 SRI Poster Session.  They will all be continuing their projects next year in the Biology Guided Research & Seminar course.  
Ananya
Ashley
Grace
Izzie

    Archives

    May 2026
    April 2026
    December 2025
    October 2025
    July 2025
    May 2025
    April 2025
    January 2025
    July 2024
    May 2024
    April 2024
    February 2024
    August 2023
    June 2023
    May 2023
    April 2023
    January 2023
    August 2022
    July 2022
    May 2022
    April 2022
    November 2021
    September 2021
    June 2021
    April 2021
    March 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    February 2020
    January 2020
    October 2019
    August 2019
    July 2019
    May 2019
    December 2018
    November 2018
    October 2018
    August 2018
    February 2018
    November 2017
    July 2017

Research Lab of Alison Pischedda
Barnard College, Columbia University
Last updated 3/2026