Featured Research

from universities, journals, and other organizations

'Experienced' female lizards attract greater attention from male lizards

Date:
May 19, 2010
Source:
Allen Press Publishing Services
Summary:
Female sagebrush lizards with greater courtship experience are more likely to be courted by their male counterparts, according to a recent study.

Female sagebrush lizards with greater courtship experience are more likely to be courted by their male counterparts, according to a recent study.

The study is described by Mayte Ruiz, Zachary M. Beals, and Emilia P. Martins in the June 2010 issue of Herpetologica.

For the study, the three researchers collected 13 male and 26 female sagebrush lizards from the San Gabriel Mountains of Southern California and housed them in terraria at Indiana University, Bloomington. During a two-week test period, half of the female lizards were assigned at random to a low-courtship treatment group that received one visit from a robotic male lizard every other day, while the other female lizards were placed in a high-courtship group that saw the robotic male lizard four times daily.

The researchers wanted to see whether the amount of female courtship experience influences male sagebrush lizards' behavior. "Repeated male courtship may be beneficial to males if increasing female exposure to courtship displays advances reproductive state," the researchers write. This also may help female lizards produce more fertilized eggs and breed earlier and more often.

After the two weeks of robotic lizard visits, a live male lizard was place in each female lizard's terrarium for 30 minutes. The researchers paired each male sequentially with two females -- one from the low-courtship group and one from the high-courtship group.

"In our study, male lizards distinguished between females that had received more previous courtship and those that had received less, directing more tongue-flicks and moving more often toward females that had greater courtship experience than when placed with females that received few displays," the researchers write. "Although females did not differ in behavioral response due to display treatment, males may detect differences in physiological state of the female and respond accordingly."

They note that additional research is needed to determine physiological differences between females with varied courtship experience. The researchers also note that their study "used a robotic lizard to create differences between females that were not detectable to human observers, and an assay of male behavior to detect those differences." This shows how robotic stimuli can help manipulate animals in a controlled way for research purposes, they write.


Story Source:

The above story is based on materials provided by Allen Press Publishing Services. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ruiz et al. Male Sagebrush Lizards (Sceloporus graciosus) Increase Exploratory Behavior Toward Females with More Courtship Experience. Herpetologica, 2010; 66 (2): 142 DOI: 10.1655/09-022R2.1

Cite This Page:

Allen Press Publishing Services. "'Experienced' female lizards attract greater attention from male lizards." ScienceDaily. ScienceDaily, 19 May 2010. <www.sciencedaily.com/releases/2010/05/100518110927.htm>.
Allen Press Publishing Services. (2010, May 19). 'Experienced' female lizards attract greater attention from male lizards. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2010/05/100518110927.htm
Allen Press Publishing Services. "'Experienced' female lizards attract greater attention from male lizards." ScienceDaily. www.sciencedaily.com/releases/2010/05/100518110927.htm (accessed April 16, 2014).

Share This



More Plants & Animals News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
In Washington, a Push to Sterilize Stray Cats

In Washington, a Push to Sterilize Stray Cats

AFP (Apr. 14, 2014) To curb the growing numbers of feral cats in the US capital, the Washington Humane Society is encouraging residents to set traps and bring the animals to a sterilization clinic, after which they are released.. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com
After Attack, Officials Kill 5 Bears in Florida

After Attack, Officials Kill 5 Bears in Florida

AP (Apr. 14, 2014) Florida wildlife officials say they have killed five bears following an attack on a woman in a suburban subdivision in central Florida. Forty-five year-old Terri Frana was attacked by a large bear in her driveway Saturday. (April 14) Video provided by AP
Powered by NewsLook.com
Uruguay Opens Its First Cannabis Library

Uruguay Opens Its First Cannabis Library

AFP (Apr. 13, 2014) Uruguay opened its first Cannabis Library in Montevideo on Saturday, where people can come and read books on cannabis or take classes on how to grow the plant or even how to cook with it. Duration: 01:20 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins