Navigation Links
Ant parasite turns host into ripe red berry, biologists discover
Date:1/16/2008

s colonies contain between a few hundred and several thousand ants.

Infected ants, normally black, develop a bright red abdomen, called a gaster, and tend to hold it in an elevated position, an alarm posture in ants. The ants also get sluggish, and the gaster is easily broken off, making it easy for birds to pluck. Dudley noted that birds usually don't eat ants, especially C. atratus, as the ants are heavily armored and defended by bad-tasting chemical defenses.

Yanoviak and Poinar reconstructed the life cycle of the nematode, though Yanoviak admits that they never saw a bird eat an ant's red gaster.

"Nevertheless, I definitely saw birds come in and seemingly stop and take a second look at those ants before flying off, probably because the ants were moving," Yanoviak said. "So I really suspect that these little bananaquits or tyrannids (flycatchers) are coming in and taking the ants, thinking they are fruit."

Birds apparently are merely a way to spread the parasite's eggs more broadly, since the eggs pass directly through into the feces. Ants become infected when they feed to ant larvae the bird feces containing parasite eggs. The nematodes hatch and migrate to the gaster of the ant pupae, where they mate. After the pupae become adults, the adults tend the brood while the nematode females incubate their eggs inside them, stunting the ant's growth somewhat.

Then, as the nematode eggs mature, the ants' gasters turn red and the ants start foraging outside the nest, setting the scene for fruit-eating birds to be duped into eating an ant they would normally avoid.

"This is a really great example of the kinds of complex host-parasite interactions that can co-evolve, and also of the role of serendipity in tropical biology," Dudley said.


'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Disrupting common parasites ability to talk to each other reduces infection
2. Study of malaria parasite in patient blood finds distinct physiological states
3. Parasites might spur evolution of strange amphibian breeding habits
4. Predators and parasites may increase evolutionary stability
5. Coral reef fish harbor an unexpectedly high biodiversity of parasites
6. Social parasites of the smaller kind
7. Adaptation to parasites drive African fishes along different evolutionary paths
8. Simple recipe turns human skin cells into embryonic stem cell-like cells
9. Too much sugar turns off gene that controls the effects of sex steroids
10. OHSU turns innovations into commercial opportunities at record pace
11. Chemistry turns killer gas into potential cure
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/23/2015)... , Feb. 23, 2015 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... provisional patent 62114357 for DISTRIBUTED VOICE DIRECTED ... NXT-ID introduces a new groundbreaking payment method. Payment accounts ... account may only be accessed if both the speech ...
(Date:2/18/2015)... Feb. 18, 2015  Cepheid (NASDAQ: CPHD ) ... following conferences, and invited investors to participate via webcast. ... MA Tuesday, March 3, 2015 at 11.20 a.m. ... Orlando, FL Wednesday, March 4, 2015 at ... access the live webcasts for these events, please visit Cepheid,s ...
(Date:2/12/2015)... , Feb. 12, 2015   MedNet Solutions ... in clinical study management systems, has recently bolstered ... further distinguishing iMedNet as ... Organizations (CROs) and healthcare consultants.  Building on the ... customer referrals and numerous co-marketing opportunities), MedNet,s new ...
Breaking Biology News(10 mins):NXT-ID Patents Voice Directed Payments 2NXT-ID Patents Voice Directed Payments 3Cepheid to Webcast Upcoming Financial Presentations 2MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2
... mellifera) to the Americas, Mayan bee keepers harvested honey from ... Now, colleagues from the Colegio de la Frontera Sur in ... warn of the imminent demise of stingless bee keeping on ... loss. , "In our initial surveys of bee keepers working ...
... for drug resistance in HIV-infected patients at the time ... life expectancy, according to an article in the Nov. ... , Resistance to antiretroviral therapy, even in patients ... However, genotype resistance testing, which involves looking for the ...
... Covering ship hulls with artificial shark skin could help ... as barnacles on ship hulls is a major cause ... skin offers a structural design that prevents this so ... Applied Sciences, Bremen, Germany, is presenting his work on ...
Cached Biology News:Mayan stingless bee keeping: Going, going, gone? 2Drug resistance testing in treatment-naive HIV patients is cost-effective 2
(Date:2/27/2015)... GERMANTOWN, Md. and SUMMERLAND, British ... Corporation (NYSE: XON ), a leader ... an agreement to acquire  Okanagan Specialty Fruits (OSF), ... apple , the world,s first non-browning apple. Through ... trees yielding fruit that is more appetizing and convenient ...
(Date:2/27/2015)... DUBLIN , Feb. 27, 2015 Research and Markets ... the "Global Market Report of Trypsin" report to ... Trypsin (CAS 9002-07-7) aims at providing comprehensive data on Trypsin ... Asia , North America , ... trends, pays close attention to Trypsin This report ...
(Date:2/27/2015)... , Feb. 27, 2015 Bionomics Limited (ASX:BNO, ... DisrupTOR-1 trial of BNC105 in patients with metastatic renal ... Orlando, Florida . The data will be ... City of Hope Comprehensive Cancer Center in ... The new data identifies Ferritin and IL-8 as ...
(Date:2/27/2015)... Cytokinetics, Incorporated (Nasdaq: CYTK) announced today ... patients and health care advocates in the United States ... Rare Disease Day is dedicated to elevating public ... special challenges faced by patients with rare diseases and ... to stand alongside patients and caregivers representing the rare ...
Breaking Biology Technology:Intrexon to Acquire Okanagan Specialty Fruits 2Intrexon to Acquire Okanagan Specialty Fruits 3Intrexon to Acquire Okanagan Specialty Fruits 4Global Market Report of Trypsin 2014-2018 2New BNC105 Biomarker Data to be Presented at US Cancer Conference 2New BNC105 Biomarker Data to be Presented at US Cancer Conference 3New BNC105 Biomarker Data to be Presented at US Cancer Conference 4New BNC105 Biomarker Data to be Presented at US Cancer Conference 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6
... SAN DIEGO, June 1, 2011 Tioga Pharmaceuticals, Inc. ... granted Fast Track designation by the U.S. Food and ... diarrhea-predominant irritable bowel syndrome (D-IBS). Tioga is conducting a ... conducted under a Special Protocol Assessment agreement with the ...
... 2011 Reportlinker.com announces that a new ... catalogue: Osteosarcoma Therapeutics - ... http://www.reportlinker.com/p0546797/Osteosarcoma-Therapeutics---Pipeline-Assessment-and-Market-Forecasts-to-2017.html?utm_source=prnewswire&utm_medium=pr&utm_campaign=Pathology ... Market Forecasts to 2017 ...
... a new quasiparticle called the "hybrid plasmon polariton" ... circuits and optical computing for the 21st century. ... Lawrence Berkeley National Laboratory (Berkeley Lab) have demonstrated ... on-chip optical communication systems. "We have ...
Cached Biology Technology:FDA Grants Fast Track Designation to Tioga Pharmaceuticals' Asimadoline for the Treatment of Diarrhea-Predominant Irritable Bowel Syndrome 2Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 2Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 3Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 4Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 5Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 6Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 7Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 8Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 9Reportlinker Adds Osteosarcoma Therapeutics - Pipeline Assessment and Market Forecasts to 2017 10Nanoscale waveguide for future photonics 2Nanoscale waveguide for future photonics 3Nanoscale waveguide for future photonics 4