File:Nutriasicles.JPG
Original file (2,048 × 1,536 pixels, file size: 1,015 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionNutriasicles.JPG |
English: These nutria (a.k.a. 'coypus'- Myocastor coypus<i\>) were killed as part of a population control program at Rockefeller Wildlife Management Area, Louisiana, USA. They were stored in a freezer for later use in a research project.
Rockefeller WMA is located in Cameron Parish in western Louisiana on the Gulf of Mexico coast. Rockefeller WMA has a variety of fresh, intermediate, and brackish marshes. The management of water flows and salinity is an important tool in maintaining the diverse mixture of marsh for a variety of fish, shrimp, and waterfowl. Nutria, by their burrowing activities, weaken or compromise the levees that are important in the refuge's water management effort. When their populations are high enough nutria can also directly cause marsh loss, however, their populations rarely get that high at Rockefeller because of the high density of alligators (Alligator mississippiensis). The nutria on the back of the pickup were a couple days take by refuge sharp shooters and had been in a freezer for couple months (thus 'nutriasickels'). I asked the refuge staff to hold onto the nutria so my graduate student, Sara DeLozier, could remove their eyeballs as part of a study whereby she characterized the population's age distribution by examining lens weight. Nutria populations are generally managed by alligators and fur trappers, but occasionally shooting becomes necessary when the nutria populations get too large, or are too concentrated around the levee structures or marsh restoration sites. Nutria have become an integral part of the biological community along coastal Louisiana and are an important food source for alligators. |
Date | |
Source | U.S. Geological Survey |
Author | Jacoby Carter (text), Sergio Merino (photographer) |
29°39'14"N, 92°43'4"W
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
||
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 21:55, 6 January 2010 | 2,048 × 1,536 (1,015 KB) | Big bear cat (talk | contribs) | {{Information |Description={{en|1=These nutria (a.k.a. 'coypus'- Myocastor coypus) were killed as part of a population control program at Rockefeller Wildlife Management Area, Louisiana, USA. They were stored in a freezer for later use in a research pro |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
File usage on other wikis
The following other wikis use this file:
- Usage on azb.wikipedia.org
- Usage on en.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on www.wikidata.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON |
---|---|
Camera model | E880 |
Exposure time | 5/536 sec (0.0093283582089552) |
F-number | f/3.5 |
ISO speed rating | 100 |
Date and time of data generation | 09:41, 3 February 2004 |
Lens focal length | 14.8 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E880v1.0 |
File change date and time | 09:41, 3 February 2004 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.1 |
Date and time of digitizing | 09:41, 3 February 2004 |
Meaning of each component |
|
Image compression mode | 3 |
APEX exposure bias | 0 |
Maximum land aperture | 3.5 APEX (f/3.36) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |