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Revisiting Aldo Leopold's "Perfect" Land Health: Conservation and Development in Mexico's Rio Gavilan (open access)

Revisiting Aldo Leopold's "Perfect" Land Health: Conservation and Development in Mexico's Rio Gavilan

The Rio Gavilan watershed, located in Mexico 's northern Sierra Madre Occidental , has significance in conservation history. Upon visiting the remote, largely un­developed watershed during two hunting trips in the 1930s, renowned conservationist Aldo Leopold thought it was the best picture of land health he had seen. His main indicators of healthy land were slow water runoff rates regulating erosion and historical predator-prey relationships. The visits confirmed Leopold's concept of land health, inspired many of his essays, and helped shape his land ethic. Leopold proposed the area as a control site to research healthy land throughout North America . The proposal never went forward and the area has since been more intensively logged and grazed. This dissertation research used extensive literature review, archives, oral histories, citizen surveys, and rapid assessment of forest, rangeland, riparian, and socioeconomic health to assess impacts of past cultures and update the area's land health status. Projects that could restore land health, such as linked eco-tourism, forest density reduction, and rotational grazing, were assessed for feasibility. Recent critiques of Leopold's land ethic were also reviewed. Results indicate most pre-1940s impacts were light, current land health status is moderate, and local interest exists in restoring land …
Date: December 2004
Creator: Forbes, William
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The San Saba News. (San Saba, Tex.), Vol. 16, No. 6, Ed. 1, Friday, December 6, 1889 (open access)

The San Saba News. (San Saba, Tex.), Vol. 16, No. 6, Ed. 1, Friday, December 6, 1889

Weekly newspaper from San Saba, Texas that includes local, state and national news along with extensive advertising.
Date: December 6, 1889
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
El Paso Herald (El Paso, Tex.), Ed. 1, Monday, December 17, 1917 (open access)

El Paso Herald (El Paso, Tex.), Ed. 1, Monday, December 17, 1917

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 17, 1917
Creator: Slater, H. D.
Object Type: Newspaper
System: The Portal to Texas History
El Paso Herald (El Paso, Tex.), Ed. 1, Wednesday, December 19, 1917 (open access)

El Paso Herald (El Paso, Tex.), Ed. 1, Wednesday, December 19, 1917

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 19, 1917
Creator: Slater, H. D.
Object Type: Newspaper
System: The Portal to Texas History
El Paso Herald (El Paso, Tex.), Ed. 1, Saturday, December 22, 1917 (open access)

El Paso Herald (El Paso, Tex.), Ed. 1, Saturday, December 22, 1917

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 22, 1917
Creator: Slater, H. D.
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 35TH YEAR, Ed. 1, Wednesday, December 9, 1914 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 35TH YEAR, Ed. 1, Wednesday, December 9, 1914

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 9, 1914
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 36TH YEAR, Ed. 1, Sunday, December 12, 1915 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 36TH YEAR, Ed. 1, Sunday, December 12, 1915

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 12, 1915
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 38TH YEAR, Ed. 1, Sunday, December 16, 1917 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 38TH YEAR, Ed. 1, Sunday, December 16, 1917

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 16, 1917
Creator: Black, James S.
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 38TH YEAR, Ed. 1, Friday, December 21, 1917 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 38TH YEAR, Ed. 1, Friday, December 21, 1917

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 21, 1917
Creator: Black, James S.
Object Type: Newspaper
System: The Portal to Texas History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 54, No. 296, Ed. 1 Monday, December 17, 1951 (open access)

Sweetwater Reporter (Sweetwater, Tex.), Vol. 54, No. 296, Ed. 1 Monday, December 17, 1951

Daily newspaper from Sweetwater, Texas that includes local, state and national news along with extensive advertising.
Date: December 17, 1951
Creator: Baker, Allen
Object Type: Newspaper
System: The Portal to Texas History
Daily Ardmoreite (Ardmore, Okla.), Vol. 28, No. 52, Ed. 1 Sunday, December 12, 1920 (open access)

Daily Ardmoreite (Ardmore, Okla.), Vol. 28, No. 52, Ed. 1 Sunday, December 12, 1920

Daily newspaper from Ardmore, Oklahoma. Coverage includes local, state, and national news, along with advertising.
Date: December 12, 1920
Creator: Easley, John F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Cass County Sun (Linden, Tex.), Vol. 57, No. 49, Ed. 1 Tuesday, December 6, 1932 (open access)

The Cass County Sun (Linden, Tex.), Vol. 57, No. 49, Ed. 1 Tuesday, December 6, 1932

Weekly newspaper from Linden, Texas that includes local, state and national news along with advertising.
Date: December 6, 1932
Creator: Banger, J. E. A. & Erwin, W. L.
Object Type: Newspaper
System: The Portal to Texas History
The Galveston Daily News. (Galveston, Tex.), Vol. 37, No. 219, Ed. 1 Wednesday, December 4, 1878 (open access)

The Galveston Daily News. (Galveston, Tex.), Vol. 37, No. 219, Ed. 1 Wednesday, December 4, 1878

Daily newspaper from Galveston, Texas that includes local, state and national news along with extensive advertising.
Date: December 4, 1878
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Orange Leader (Orange, Tex.), Vol. 48, No. 298, Ed. 1 Monday, December 17, 1951 (open access)

The Orange Leader (Orange, Tex.), Vol. 48, No. 298, Ed. 1 Monday, December 17, 1951

Daily newspaper from Orange, Texas that includes local, state and national news along with extensive advertising.
Date: December 17, 1951
Creator: Browning, J. Cullen
Object Type: Newspaper
System: The Portal to Texas History
El Paso Daily Times (El Paso, Tex.), Vol. 27, Ed. 1 Thursday, December 5, 1907 (open access)

El Paso Daily Times (El Paso, Tex.), Vol. 27, Ed. 1 Thursday, December 5, 1907

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 5, 1907
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 31, Ed. 1 Thursday, December 8, 1910 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 31, Ed. 1 Thursday, December 8, 1910

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 8, 1910
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
El Paso Morning Times (El Paso, Tex.), Vol. 31, Ed. 1 Tuesday, December 6, 1910 (open access)

El Paso Morning Times (El Paso, Tex.), Vol. 31, Ed. 1 Tuesday, December 6, 1910

Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date: December 6, 1910
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The West News (West, Tex.), Vol. 43, No. 27, Ed. 1 Friday, December 2, 1932 (open access)

The West News (West, Tex.), Vol. 43, No. 27, Ed. 1 Friday, December 2, 1932

Weekly newspaper from West, Texas that includes local, state and national news along with advertising.
Date: December 2, 1932
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Houston Post. (Houston, Tex.), Vol. 24, Ed. 1 Sunday, December 13, 1908 (open access)

The Houston Post. (Houston, Tex.), Vol. 24, Ed. 1 Sunday, December 13, 1908

Daily newspaper from Houston, Texas that includes local, state and national news along with extensive advertising.
Date: December 13, 1908
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Houston Post. (Houston, Tex.), Vol. 25, Ed. 1 Sunday, December 26, 1909 (open access)

The Houston Post. (Houston, Tex.), Vol. 25, Ed. 1 Sunday, December 26, 1909

Daily newspaper from Houston, Texas that includes local, state and national news along with extensive advertising.
Date: December 26, 1909
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Jacksboro Gazette (Jacksboro, Tex.), Vol. 37, No. 30, Ed. 1 Thursday, December 23, 1915 (open access)

Jacksboro Gazette (Jacksboro, Tex.), Vol. 37, No. 30, Ed. 1 Thursday, December 23, 1915

Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.
Date: December 23, 1915
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 48, No. 247, Ed. 1 Monday, December 11, 1939 (open access)

The El Reno Daily Tribune (El Reno, Okla.), Vol. 48, No. 247, Ed. 1 Monday, December 11, 1939

Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date: December 11, 1939
Creator: Dyer, Ray J.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Cuero Daily Record (Cuero, Tex.), Vol. 28, No. 141, Ed. 1 Sunday, December 13, 1908 (open access)

The Cuero Daily Record (Cuero, Tex.), Vol. 28, No. 141, Ed. 1 Sunday, December 13, 1908

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date: December 13, 1908
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Caesar Kleberg Wildlife Research Institute Report of Current Research: 2015 (open access)

Caesar Kleberg Wildlife Research Institute Report of Current Research: 2015

A report on wildlife research projects being done by the staff and students of the Caesar Kleberg Wildlife Research Institute at Texas A & M University-Kingsvillle for the fiscal year 2015.
Date: December 2015
Creator: Caesar Kleberg Wildlife Research Institute
Object Type: Report
System: The Portal to Texas History