Featured Research

from universities, journals, and other organizations

Revisiting The Vertebrate Invasion Of The Land

Date:
December 8, 2004
Source:
University Of Chicago Press Journals
Summary:
Seven papers that expand upon recent research into the origin of tetrapods and their invasion of the land during the Devonian period appear in the September/October 2004 issue of Physiological and Biochemical Zoology.

Seven papers that expand upon recent research into the origin of tetrapods and their invasion of the land during the Devonian period appear in the September/October 2004 issue of Physiological and Biochemical Zoology.

Although the fossil record of this transition remains far from complete, new discoveries have increased the resolution of the morphological sequence, documented the relative rapidity and geographic distribution of the tetrapod appearance, and fueled new controversy over the environmental and biological factors involved. Topics in this state-of-the-art issue range from the fish-tetrapod fossil record to diverse aspects of the behavior, physiology, biochemistry, and ecology of the extant fish species that use either or both terrestriality and air breathing.

Research findings include:# The first demonstration of the presence of SP-D in the air-breathing organs of nonmammalian species and SP-B in actinopterygian fishes.

# Selection pressures imposed by life in the intertidal zone are insufficient to have resulted in the requisite aerial respiratory capacity or the degree of separation from water required for the vertebrate land transition.

# An examination of the effects of hypoxia and exercise on the partitioning of aquatic and aerial oxygen uptake in the Pacific tarpon.

# Beach spawning provides habitat segregation at different points in the life history, with air emergence early in the life cycle and a return to water at hatching.

# With regard to excretory nitrogen metabolism, modern tropical air-breathing fishes exhibit a variety of strategies to survive on land, and they represent a spectrum of specimens through which we may examine various biochemical adaptations that would have facilitated the invasion of the terrestrial habitat by fishes during evolution.

These articles are from two merged symposia ("How to Live Successfully on Land If One Is a Fish: The Functional Morphology and Physiology of the Vertebrate Invasion of the Land" and "Evolution of Air Breathing") presented at the Sixth International Congress of Comparative Physiology and Biochemistry, Mount Buller, Victoria, Australia, 2003.


Story Source:

The above story is based on materials provided by University Of Chicago Press Journals. Note: Materials may be edited for content and length.


Cite This Page:

University Of Chicago Press Journals. "Revisiting The Vertebrate Invasion Of The Land." ScienceDaily. ScienceDaily, 8 December 2004. <www.sciencedaily.com/releases/2004/12/041206213406.htm>.
University Of Chicago Press Journals. (2004, December 8). Revisiting The Vertebrate Invasion Of The Land. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2004/12/041206213406.htm
University Of Chicago Press Journals. "Revisiting The Vertebrate Invasion Of The Land." ScienceDaily. www.sciencedaily.com/releases/2004/12/041206213406.htm (accessed July 30, 2014).

Share This




More Plants & Animals News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Otters Enjoy Water Slides at Japan Zoo

Raw: Otters Enjoy Water Slides at Japan Zoo

AP (July 30, 2014) River otters were hitting the water slides to beat the summer heatwave on Wednesday at Ichikawa City's Zoological and Botanical Garden. (July 30) Video provided by AP
Powered by NewsLook.com
In Virginia, the Rise of a New Space Coast

In Virginia, the Rise of a New Space Coast

AP (July 30, 2014) Every summer, tourists make the pilgrimage to Chincoteague Island, Va. to see wild ponies cross the Assateague Channel. But, it's the rockets sending to supplies to the International Space Station that are making this a year-round destination. (July 30) Video provided by AP
Powered by NewsLook.com
Rodents Rampant in Gardens Around Louvre

Rodents Rampant in Gardens Around Louvre

AP (July 29, 2014) Food scraps and other items left on the grounds by picnickers brings unwelcome visitors to the grounds of the world famous and popular Louvre Museum in Paris. (July 29) Video provided by AP
Powered by NewsLook.com
Jane Goodall Warns Great Apes Face Extinction

Jane Goodall Warns Great Apes Face Extinction

AFP (July 29, 2014) The world's great apes face extinction within decades, renowned chimpanzee expert Jane Goodall warned Tuesday in a call to arms to ensure man's closest relatives are not wiped out. Duration: 00:58 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