Welcome to Rangeland Management 101
Welcome class. In this course you will learn the basics of rangeland management:
1. Rangelands are defined as largely native landscapes that are not timber producing and not used for farming. Their chief value is for the raising of livestock, producing food and fiber for human consumption. Like western water law, only uses directly benefiting humans and putting money in a pocket are valuable. Ecological services and things we merely like such as scenery, clean water, wildlife, fisheries, endangered species are not really values.
2. Ecological habitat types have an innate ecological productivity. This is the amount of vegetation they will grow in a year, typically expressed in pounds/acre/year on typical western landscapes. In more productive habitats the metric is more like tons/acre/year. Nature produces more vegetation than is needed to maintain healthy plants. This excess production is a harvestable surplus of vegetation that can be utilized by wildlife and livestock as forage.
3. Livestock and native plant eaters are divided into grazers and browsers. Grazers prefer herbaceous vegetation like grasses and forbs while browsers prefer shrub species. This may vary seasonally, but deer and sheep are generally browsers and cattle are primarily grazers.
4. There are two kinds of grazing animals. Nonselective grazers tend to eat whatever vegetation is in front of them, they are not particular about the species of plants they eat. Selective grazers show strong preferences for certain species of grass and forbs and will eat those selectively until they are gone before moving onto less desired species. American bison is an example of a nonselective grazer. Cattle are highly selective grazers. The cattle’s most preferred plants are the first to show grazing impact and the first to decline in abundance or disappear from the plant community entirely. Continue reading A Primer on Rangeland Management