Corrigendum to: Virginia opossum distributions are influenced by human-modified landscapes and water availability in tallgrass prairies

Abstract The Flint Hills represent the largest tract of tallgrass prairie in North America and is located near the western edge of the native range of the Virginia opossum (Didelphis virginiana). This region is undergoing rapid landscape changes (e.g., urbanization, agriculture, woody encroachment) that are negatively affecting mammal communities. Although previous research has revealed northward distributional expansions of Virginia opossums facilitated by urban development, no studies have assessed how landscape change affects distribution patterns along the western edge of their geographic range. During 2016–2018, we monitored site (n = 74) occupancy along urban–rural transects in the Flint Hills to assess the influence of landscape change (i.e., urban, grassland, agriculture, woody encroachment) and water availability on the distribution of Virginia opossums. Sites surrounded by urban land cover had greater initial occupancy probabilities and lower extinction rates. Sites closer to permanent water sources experienced greater colonization rates and lower extinction rates. In addition, site extinction rates were lower in areas surrounded by woody encroachment. Our results concur with other studies suggesting that growing urban areas may expand opossum distributions along the edges of their geographic range. Our study also suggests that woody encroachment into tallgrass prairies may provide an alternative pathway for future distributional expansions. Future research must consider the potential for landscape change, along with dynamic water availability, in models predicting the distribution of Virginia opossums.

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Evaluating Alternative Water Allocation Strategies for Maximizing Returns to Irrigation for Wheat in the Texas Panhandle under Declining Water Availability

World Environmental and Water Resources Congress 2007 ◽

10.1061/40927(243)241 ◽

2007 ◽

Author(s):

W. Arden Colette ◽

Lai K. Almas

Keyword(s):

Water Availability ◽

Water Allocation ◽

Texas Panhandle ◽

Alternative Water ◽

Allocation Strategies

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Impact of water availability on winter wheat ( Triticum aestivum L.) yield characteristics

Agrokémia és Talajtan ◽

10.1556/agrokem.59.2010.1.18 ◽

2010 ◽

Vol 59 (1) ◽

pp. 151-156 ◽

Cited By ~ 2

Author(s):

H. Klupács ◽

Á. Tarnawa ◽

I. Balla ◽

M. Jolánkai

Keyword(s):

Winter Wheat ◽

Water Supply ◽

Water Availability ◽

Grain Quality ◽

Physiological Condition ◽

Triticum Aestivum L ◽

Annual Precipitation ◽

Average Depth ◽

Experimental Site ◽

Yield Quality

Water supply of crop plants is the most essential physiological condition influencing quality and quantity performance of grain yield. In a 12-year experimental series of winter wheat agronomic trials run at the Nagygombos experimental site (Hungary) the effect of water availability has been studied. The location represents the typical average lowland conditions of the country, the annual precipitation of the experimental site belonging to the 550–600 mm belt of the Northern edges of the Great Hungarian Plain, while the average depth of groundwater varies between 2 to 3 metres. Crop years with various precipitation patterns have had different impacts on crop yield quality and quantity. Yield figures were in positive correlation with annual precipitation in general. Water availability had diverse influence on quality manifestation. Good water supply has often resulted in poorer grain quality, especially wet gluten and Hagberg values have been affected by that. Drought reduced the amount of yield in general, but contributed to a better quality manifestation in some of the crop years.

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CRITICAL FACTORS OF WATER CONTENT FOR FISH STOCKS IN THE WATER RESERVOIRS OF KAZAKHSTAN

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES FISHING INDUSTRY ◽

10.24143/2073-5529-2017-1-9-18 ◽

2017 ◽

pp. 9-18

Author(s):

Saule Zhangirovna Asylbekova ◽

Kuanysh Baibulatovich Isbekov ◽

Evgeniy Vyacheslavovich Kulikov

Keyword(s):

Water Content ◽

Water Level ◽

Water Availability ◽

Hydrological Regime ◽

Fishing Effort ◽

Water Reservoirs ◽

The Caspian Sea ◽

Annual Fish ◽

Commercial Fish ◽

Fish Stocks

The hydrological regime of water reservoirs in different years has a decisive impact on the abundance of commercial fish stocks and the quality of ichthyocenoses. In this connection in 2015-2016 there was conducted a retrospective analysis and ranking of hydrological regime impact on these factors. The paper gives evaluation of catches and fish stocks under different scenarios of water availability in the main fishing ponds of the Republic of Kazakhstan that give about 80% of the annual fish catch of the country (except the Caspian Sea). There were analyzed 2000 factors of hydrological regime (water level, annual discharge) and 1845 factors of fishing stocks (catches, abundance, fish biomass). The paper determines the critical characteristics of water availability for fish stocks. There have been proposed a number of administrative decisions and actions in case if water content would approach to the critical level. Among them: limitation of fish catches in the following year; widening zones restricted for fishing; intensification of safety measures of the fish young in residual ponds during arid periods; introduction of catch standards for a unit of fishing effort in low-water years, high-water years and years with normal water level in rivers.

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