Navigation Links
Cricket's finicky mating behavior boosts biodiversity

ifferent species of the cricket now inhabit the island chain.

Among all animals, say Mendelson and Shaw, only the African cichlid fish spawns new species more quickly.

While early biologists based their estimates of speciation rates on morphological, or structural characteristics, Mendelson says, scientists today are more likely to use genetic data to come up with estimates.

Closely related species of Laupala have no clear morphological differences, Mendelson says. They are similar in appearance, they have similar diets, and they live in similar habitats. Members of closely related species possess no physiological differences that would prevent them from interbreeding.

But closely related species are distinguished by subtle differences in the pulse rates of male crickets' simple courtship songs, a secondary sexual trait that plays a large role in mate attraction.

Among all species of Laupala, pulse rates of male courtship songs range from .5 to 4.2 pulses per second. Female crickets can detect these differences, says Mendelson, and they tend to hop towards the pulse rate of their own species and to reject songs sung at a different tempo.

The Laupala mating ritual lasts up to eight hours and consists of eight to 15 transfers of spermatophores between male and female, says Mendelson. The final spermatophore, or capsule, to be transferred contains the actual sperm cells that impregnate the female.

As a species begins to split into two separate species, says Mendelson, "the songs appear to be the first characteristic that changes."

During the early part of the speciation process, says Mendelson, crickets of the two emerging lines interbreed. After a point, however, members of the two distinct species no longer mate with each other.

This discovery led Mendelson to name one of her graduate-school papers after the pop song "Will You Still Love Me Tomorrow?" The Nature article was given the more conserv
'"/>

Source:Eurekalert


Page: 1 2 3

Related biology news :

1. PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information
2. Certain fish have a special mating preference
3. Space matters: Estimating species diversity in the fossil record
4. Weapon performance determines mating success in the collared lizard
5. Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants
6. Sperm trading can resolve hermaphrodite mating conflicts
7. New study examines how sense of smell affects mating and aggression in mice
8. Same-sex mating by fungi spawned infection outbreak, evidence suggests
9. Male chimpanzees prefer mating with old females
10. Microfluidic chip helps solve cellular mating puzzle
11. Remote control flies? Fly behavior controlled by laser light
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Cricket finicky mating behavior boosts biodiversity

(Date:8/27/2014)... are often depicted as giant, frightening beasts. But every ... of a rock slab containing fossils of 24 very ... a group of hatchlings overseen by a caretaker, according ... , Penn,s Brandon P. Hedrick and Peter Dodson led ... of Natural History, where the specimen is held. Hedrick ...
(Date:8/27/2014)... New York, NY (June, 2014) Outstanding basic ... treatments, and a dedication to patient care have ... of Columbia University Medical Center (CUMC) and NewYork-Presbyterian ... Grant from the National Cancer Institute (NCI). The ... only two NCI-designated Comprehensive Cancer Centers in New ...
(Date:8/27/2014)... University of Adelaide research has shown that piglets can ... birthing frequency. , The outcome of the study at ... Animal Reproduction Science , is an important finding for ... welfare without loss of production. , "Sows don,t usually ... on heat after their piglets have been weaned," says ...
Breaking Biology News(10 mins):Penn paleontologists describe a possible dinosaur nest and young 'babysitter' 2Penn paleontologists describe a possible dinosaur nest and young 'babysitter' 3Herbert Irving Comprehensive Cancer Center awarded $18 million grant 2Herbert Irving Comprehensive Cancer Center awarded $18 million grant 3Herbert Irving Comprehensive Cancer Center awarded $18 million grant 4Piglet weaning age no bar to litter frequency 2
... , Technological advancements in medicine have allowed patients suffering ... to regain mobility and live relatively pain-free. But some ... the U.S. Food and Drug Administration (FDA) are not ... is tested to determine its safety and effectiveness. ...
... , Muscular dystrophy is caused by the largest human gene, ... Research conducted at the University of Missouri and described this ... of Sciences has identified significant sections of ... and families. , MU scientists Dongsheng Duan, PhD, and Yi ...
... German . Trees do not grow in ... into oases for deep-sea life - at least temporarily until ... researchers from Germany now showed how sunken wood can develop ... By using underwater robot technology, they confirmed their hypothesis that ...
Cached Biology News:A call to prevent unsafe high-risk medical devices from reaching the marketplace 2A call to prevent unsafe high-risk medical devices from reaching the marketplace 3Scientists discover 'needle in a haystack' for muscular dystrophy patients 2Scientists discover 'needle in a haystack' for muscular dystrophy patients 3Wood on the seafloor -- an oasis for deep-sea life 2
(Date:8/27/2014)... 27, 2014  Lisa Kulik saw fireworks for the ... holiday, thanks to a groundbreaking retinal implant co-invented by ... clinician-researcher at the University of Southern California (USC) Eye ... Peoria, Ariz. resident who has retinitis pigmentosa, ... sight. On June 2, she became the first person ...
(Date:8/27/2014)... , Aug. 27, 2014 Guggenheim Securities, the ... today announced the hiring of veteran equity analyst Charles ... analyst. Mr. Butler will focus on the biotech/biopharma sector. ... a wealth of experience and a broad network of ... Senior Managing Director and Head of Equities at Guggenheim ...
(Date:8/27/2014)... , Aug. 27, 2014 Research ... "Global Enzyme for Pulp & Paper Industry Report ... The Global Enzyme for Pulp & Paper Industry Report ... current state of the global enzyme for pulp & ... overview of the industry including definitions, classifications, applications and ...
(Date:8/27/2014)... , Aug. 27, 2014 Tris Pharma, ... delivery technologies, today announced that it has been selected ... & Industry Association,s 2014 Awards for Excellence ... by an independent panel of judges from SCORE (Counselors ... Award winners will be honored at a gala event ...
Breaking Biology Technology:USC Eye Institute ophthalmologists implant first FDA-approved Argus II retinal prosthesis in western United States 2USC Eye Institute ophthalmologists implant first FDA-approved Argus II retinal prosthesis in western United States 3USC Eye Institute ophthalmologists implant first FDA-approved Argus II retinal prosthesis in western United States 4USC Eye Institute ophthalmologists implant first FDA-approved Argus II retinal prosthesis in western United States 5Guggenheim Securities Hires Analyst Charles "Tony" Butler to Expand Healthcare Coverage 2Global Enzyme for Pulp & Paper Industry Report 2014 2Tris Pharma Selected as an award winner in the New Jersey Business & Industry Association's 2014 Awards for Excellence 2
... Pharmaceuticals, Inc. (NYSE Amex: AEN ), a developer ... today that James S. Kuo, M.D., M.B.A., the Company,s Chief ... its Alzheimer,s program at the NYC Medtech Forum. Adeona will ... on Tuesday evening, October 11, 2011, at the offices of ...
... Dyadic International, Inc. ("Dyadic") (OTC Pink: DYAI), ... discovery, development, manufacture and sale of enzyme ... enzyme and biopharmaceutical industries, today announced that ... $3,000,000 in convertible subordinated secured promissory notes ...
... 5, 2011 Elsevier, a world-leading provider ... and the University of Sydney, Australia,s leading higher education ... 24-hour Sydney Hackathon . From ... software applications to improve delivery of scientific, medical and ...
Cached Biology Technology:Adeona CEO to Present at the NYC Medtech Forum 2Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 2Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 3Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 4Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 5
Large-capacity refrigerated incubator chamber holds up to 4 independently-operated shakers. Programmable heat, refrigeration, humidifcation are standard. Photosynthetic operation, optional....
... Ligands\n\nReceptor-related research has long been enabled by ... selected to keep pace with new discoveries. ... and services for receptor research and drug ... you do not find exactly what you ...
Denhardt's powder mixture (for 50X stock solution)...
... system and disposable ESI Chip allow users ... of electrospray mass spectrometers for life science ... users to either speed analysis for increased ... applications, or long acquisition times for proteomics ...
Biology Products: