Navigation Links
A tale of 2 species
Date:3/27/2014

Idaho State University.

Another reason why interbreeding between species is limited: personality conflicts. The scientists brought wild-caught woodrats into the laboratory to test female mate preferences.

They found that Bryant's woodrat females selected either Bryant's woodrat males or desert woodrat males with equal preference. Desert woodrat females, however, almost always mated with males of their own species.

The reason? The desert woodrat females were intimidated by Bryant's woodrat males due to their larger body size and aggressive nature. In contrast, Bryant's females, themselves larger, were open to mating with the smaller, more docile desert woodrat males as well as the males of their own species.

Another factor shown to be determining the number of hybrids is that hybrid offspring do not survive to adulthood as well as do the other two species. Higher proportions of Bryant's woodrats survived to their first year of adulthood than did the hybrids (33 percent vs. 10 percent). The same was the case for the desert woodrats (22 percent vs.10 percent percent). Once the hybrids reached their first year of adulthood, however, they fared as well as the purebreds.

The reason for the low juvenile hybrid survivability, the authors say, may lie in the lack of aggressiveness and ability to compete with purebred males for denning sites and in winning territorial battles. This may necessitate greater dispersal for the male hybrids pushing them out of range of female hybrids and exposing them to greater predation pressure.

Shurtliff said, "These studies offer further insight into the behavioral and ecological dynamics of hybrid zones.

Understanding these unique areas is important because there are many examples of naturally occurring hybrid zones, and new hybrid zones will form in the future as climate change and human impacts cause species distributions to shift and come into contact. For example, scientists have documented hybri
'/>"/>

Contact: Scott Smith
ssmith@wcs.org
718-220-3698
Wildlife Conservation Society
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Students on field course bag new spider species
2. Study shows invasive species in waterways on rise due to climate change
3. Lurking in the darkness of Chinese caves 5 new species of armored spiders come to light
4. Fish species unique to Hawaii dominate deep coral reefs in Northwestern Hawaiian Islands
5. AZTI-Tecnalia develops a methodology for authenticating canned tuna species within 24 hours
6. California and Arizona amaze with 2 new species of desert poppy
7. Exotic plant species alter ecosystem productivity
8. Not even freezing cold stops alien species in high altitudes
9. Worm-like mite species discovered on Ohio States campus
10. Competition breeds new fish species, study finds
11. New invasive species breakthrough sparks interest around the world
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A tale of 2 species
(Date:7/31/2015)... , Chine, 31 juillet 2015 ... www.icg-10.org ) sera organisée par le BGI ... Shenzhen en Chine. ... Depuis son inauguration en 2006, l,ICG est devenue ... dans le domaine des « omiques » et c,est aussi ...
(Date:7/31/2015)... SHENZHEN, China , July 31, 2015 The ... ) will be held by BGI from October 22-25, 2015, in ... The conference is celebrating its 10 th ... become one of the world,s most influential annual meetings in ... enthusiastic, and enjoyable scientific gatherings. ICG-10 focuses ...
(Date:7/23/2015)... 23, 2015 Aware, Inc. (NASDAQ: AWRE ), ... financial results for its second quarter ended June 30, 2015.  ... was $4.5 million, a decrease of 33% compared to $6.8 ... the second quarter of 2015 was $0.3 million, or $0.01 ... per diluted share, in the same period a year ago.  ...
Breaking Biology News(10 mins):La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3The 10th International Conference on Genomics (ICG-10) to Open in October 2Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6
... with a higher pre-pregnancy body mass index (BMI) are fatter ... in September,s issue of the journal Pediatric Research ... the effect of a mother,s BMI on her child,s development ... lifelong metabolic health problems. The research team used magnetic ...
... in the Southampton Centre for Biomedical Research, established ... (SUHT) and the University of Southampton, have been ... and respiratory research facilities. The funding, ... investment in NHS and university partnerships, has secured ...
... Athens, Ga. A research team from Rollins College in ... as the source of the coral-killing pathogen that causes white ... coral in the Caribbean, elkhorn coral was listed for protection ... due to white pox disease. The team,s findings have just ...
Cached Biology News:Mother's BMI linked to fatter babies 2Southampton researchers awarded $28 million to progress pioneering nutrition and respiratory research 2Human pathogen killing corals in the Florida Keys 2Human pathogen killing corals in the Florida Keys 3
(Date:7/29/2015)... US-Australian drug discovery company, Novogen Limited (ASX: NRT; NASDAQ: ... progressing its ground-breaking technology platforms to Phase 1 clinical ... Company delivers the best value for shareholders. ... the Company currently had an extensive program of activities ... academic partnerships and initiatives, and he was working with ...
(Date:7/29/2015)... BIRMINGHAM, Ala., July 29, 2015 /PRNewswire/ ... the nation,s largest providers of post-acute healthcare services, ... reported its results of operations for the second ... second quarter was characterized by strong volume growth ... our Adjusted EBITDA," said Jay Grinney, President and ...
(Date:7/29/2015)... , July 29, 2015 ... announced the addition of the "Global Biosimilars ... offering. The Global Biosimilars Market, 2015 ... the rapidly growing biosimilars market. With the blockbuster ... to minimize costs, biosimilars are being viewed as ...
(Date:7/29/2015)...  Therapath Neuropathology ( www.Therapath.com ), a leader ... and Military Medical centers both domestically and worldwide.  ... Sweat Gland Nerve Fiber Density (SGNFD) for the ... Demonstration of a reduction in ... skin biopsy is a highly sensitive and specific ...
Breaking Biology Technology:Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10HealthSouth Reports Results for Second Quarter 2015 2HealthSouth Reports Results for Second Quarter 2015 3HealthSouth Reports Results for Second Quarter 2015 4HealthSouth Reports Results for Second Quarter 2015 5HealthSouth Reports Results for Second Quarter 2015 6HealthSouth Reports Results for Second Quarter 2015 7HealthSouth Reports Results for Second Quarter 2015 8HealthSouth Reports Results for Second Quarter 2015 9HealthSouth Reports Results for Second Quarter 2015 10HealthSouth Reports Results for Second Quarter 2015 11HealthSouth Reports Results for Second Quarter 2015 12HealthSouth Reports Results for Second Quarter 2015 13HealthSouth Reports Results for Second Quarter 2015 14HealthSouth Reports Results for Second Quarter 2015 15HealthSouth Reports Results for Second Quarter 2015 16HealthSouth Reports Results for Second Quarter 2015 17HealthSouth Reports Results for Second Quarter 2015 18HealthSouth Reports Results for Second Quarter 2015 19HealthSouth Reports Results for Second Quarter 2015 20HealthSouth Reports Results for Second Quarter 2015 21HealthSouth Reports Results for Second Quarter 2015 22HealthSouth Reports Results for Second Quarter 2015 23HealthSouth Reports Results for Second Quarter 2015 24HealthSouth Reports Results for Second Quarter 2015 25HealthSouth Reports Results for Second Quarter 2015 26HealthSouth Reports Results for Second Quarter 2015 27
... poised to take their business to the $1 million annual ... prize packages, and business mentoring when the Make Mine ... here May 21. , ,The all-day event, which will take ... to women-owned businesses, including those in the technology and life ...
... Hanlon sees a lot of parallels between riding a motorcycle and ... has skinned his knees attempting to do both. , ,Hanlon will ... during the Wisconsin Alumni Research Foundation's Gilson Series ... managing an emerging-growth company. , ,While he figures to be speaking ...
... capital in more deals in 2006, but the improvement was ... Ernst & Young, LLP and Dow Jones VentureOne ... 2006, including a $12 .5 million round by NimbleGen ... a total of $58.47 million. The total, up from the ...
Cached Biology Technology:Women's entrepreneurial event set for May 21 2Motorcycling entrepreneur to speak in Madison on success, failure, capital 2Motorcycling entrepreneur to speak in Madison on success, failure, capital 3Wisconsin fares slightly better in venture capital chase 2Wisconsin fares slightly better in venture capital chase 3
... ISO 9001:2000 Certified USDA Research Registered ... SOP's Training AALAS Certified Technicians ... Procedures GLP Documentation Upon Request Focus ... point for all your custom immunology service ...
Peptide-affinity Purified Polyclonal Antibody to Prolactin Releasing Hormone Receptor (GPR10)...
...
...
Biology Products: