File:Wetland Conservation Easement Sand Lake Wetland Management District 02 (15065855434).jpg
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[edit]DescriptionWetland Conservation Easement Sand Lake Wetland Management District 02 (15065855434).jpg |
An aerial view of a wetland easement in the Sand Lake Wetland Management District in North Central South Dakota. This area supports some of the highest concentrations of nesting waterfowl in North America. It contains an abundance of temporary, seasonal, and semi-permanent wetlands that are ideal for many species of waterfowl and other wetland dependent bird species. These perpetual conservation easements are purchased by the US Fish and Wildlife Service from willing landowners and managed as part of the National Wildlife Refuge System. Where wetland easements exist, they ensure that these wetlands remain on the landscape. The land remains in private ownership, with farming, livestock grazing and haying being the primary economic uses, as it has been for generations. Flights are conducted each year to ensure that wetlands remain undrained. During dry years, landowners may farm the basins using normal agricultural practices that do not attempt to drain water from the wetlands. When moisture returns, the basins fill with water, providing critical wetland habitat. Conservation easements remain popular with many South Dakota landowners more than 50 years after the first conservation easements were purchased, with more demand than available funding. <a href="http://www.fws.gov/refuge/Sand_Lake_WMD/" rel="nofollow">www.fws.gov/refuge/Sand_Lake_WMD/</a> Photo: Tom Koerner/USFWS |
Date | |
Source | Wetland Conservation Easement Sand Lake Wetland Management District 02 |
Author | USFWS Mountain-Prairie |
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This image was originally posted to Flickr by USFWS Mountain Prairie at https://flickr.com/photos/51986662@N05/15065855434 (archive). It was reviewed on 17 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 May 2018
Public domainPublic domainfalsefalse |
This image or recording is the work of a U.S. Fish and Wildlife Service employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. For more information, see the Fish and Wildlife Service copyright policy.
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current | 02:02, 17 May 2018 | 3,373 × 1,819 (2.35 MB) | OceanAtoll (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D300 |
Exposure time | 1/400 sec (0.0025) |
F-number | f/8 |
ISO speed rating | 320 |
Date and time of data generation | 05:57, 8 April 2010 |
Lens focal length | 70 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Nikon Transfer 1.0 W |
File change date and time | 14:50, 1 January 2011 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 05:57, 8 April 2010 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 4.6 APEX (f/4.92) |
Metering mode | Spot |
Light source | Cloudy weather |
Flash | Flash did not fire |
DateTime subseconds | 07 |
DateTimeOriginal subseconds | 07 |
DateTimeDigitized subseconds | 07 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | 01edb6cfc0e5f39823a771dd63c86553 |