Difference between revisions of "Template:POTD protected"

From Encyclopedia Westarctica
Jump to navigation Jump to search
 
(118 intermediate revisions by the same user not shown)
Line 1: Line 1:
{| role="presentation" style="margin:0 3px 3px; width:100%; text-align:left; background-color:transparent; border-collapse: collapse; "
{| role="presentation" style="margin:0 3px 3px; width:100%; text-align:left; background-color:transparent; border-collapse: collapse; "
|style="padding:0 0.9em 0 0;" | [[File:MawsonMcKayDavid-sp.jpg|300px]]
|style="padding:0 0.9em 0 0;" | [[File:Elephant Seal penguins.jpg|300px|thumb]]
|style="padding:0 6px 0 0"|
|style="padding:0 6px 0 0"|


The '''[[South Magnetic Pole]]''' is the wandering point on the Earth's Southern Hemisphere where the geomagnetic field lines are directed vertically upwards. It should not be confused with the "South Geomagnetic Pole" described later.
The '''[[southern elephant seal]]''' is one of the two species of elephant seals. It is the largest member of the clade Pinnipedia and the order Carnivora, as well as the largest marine mammal that is not a cetacean. It gets its name from its massive size and the large proboscis of the adult male, which is used to produce very loud roars, especially during the breeding season.


The South Magnetic Pole is constantly shifting due to changes in the Earth's magnetic field. As of 2005 it was calculated to lie at 64°31′48″S 137°51′36″E, placing it off the coast of [[Antarctica]], between [[Adélie Land]] and [[Wilkes Land]]. In 2015 it lay at 64.28°S 136.59°E (est). That point lies outside the [[Antarctic Circle]].
The world population was estimated at 650,000 animals in the mid-1990s, and was estimated in 2005 at between 664,000 and 740,000 animals. Studies have shown the existence of three geographic subpopulations, one in each of the three oceans. Tracking studies have indicated the routes traveled by elephant seals, demonstrating their main feeding area is at the edge of the Antarctic continent. While elephant seals may come ashore in [[Antarctica]] occasionally to rest or to mate, they gather to breed in subantarctic locations.


 
<p><small>Photographer: Liam Quinn</small></p>
<p><small>Photographer: Edgeworth David</small></p>
[[:Category:Images|'''(More Images)''']]
[[:Category:Images|'''(More Featured Images)''']]
<div class="potd-recent" style="text-align:right;">
<div class="potd-recent" style="text-align:right;">

Latest revision as of 03:24, 2 May 2024

Elephant Seal penguins.jpg

The southern elephant seal is one of the two species of elephant seals. It is the largest member of the clade Pinnipedia and the order Carnivora, as well as the largest marine mammal that is not a cetacean. It gets its name from its massive size and the large proboscis of the adult male, which is used to produce very loud roars, especially during the breeding season.

The world population was estimated at 650,000 animals in the mid-1990s, and was estimated in 2005 at between 664,000 and 740,000 animals. Studies have shown the existence of three geographic subpopulations, one in each of the three oceans. Tracking studies have indicated the routes traveled by elephant seals, demonstrating their main feeding area is at the edge of the Antarctic continent. While elephant seals may come ashore in Antarctica occasionally to rest or to mate, they gather to breed in subantarctic locations.

Photographer: Liam Quinn

(More Images)