grazing pressure
11Critical Depth — This article is about the Oceanography term. For the video game, see Critical Depth (video game). In biological oceanography, Critical Depth is defined as a hypothesized surface mixing depth at which phytoplankton growth is precisely matched by… …
12Northern Basin and Range (ecoregion) — The Northern Basin and Range ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Idaho, Nevada, Utah, and California. It contains dissected lava plains, rolling… …
13Cow-calf operation — A cow licks her newborn calf clean A cow calf operation is a method of raising beef cattle in which a permanent herd of cows is kept by a farmer or rancher to produce calves for later sale. Cow calf operations are one of the key aspects of the… …
14Northern Basin and Range ecoregion — This article is about the ecoregion designated by the EPA. For the associated geographical feature, see Great Basin. Level III ecoregions in the Pacific Northwest. The Northern Basin and Range (80) borders the Sierra Nevada (5), Eastern Cascades… …
15Nagarjunsagar-Srisailam Tiger Reserve — is the only Tiger Reserve area in Andhra Pradesh. The total area of the tiger reserve is 3568 km2. This tiger reserve spreads over 3,568 sq.km and it came under the umbrella of Project Tiger in 1983. The forests are mainly southern tropical dry… …
16Lotic ecosystems — are the ecosystems of rivers, streams and springs. Included in these environments are the biotic interactions (amongst plants, animals and micro organisms) together with the abiotic interactions (physical and chemical). [Angelier (2003)] Lotic… …
17Red-billed Chough — Adult of subspecies P. p. barbarus on La Palma, Canary Islands Conservation status …
18Bolle's Pigeon — Conservation status Near Threatened (IUCN …
19Reindeer hunting in Greenland — is of great importance to the Kalaallit (Greenland Inuit) and sporting hunters, both residents and tourists. Reindeer (Caribou) are an important source of meat, and harvesting them has always played an important role in the history, culture, and… …
20Blue Mountains (ecoregion) — The Blue Mountains ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. state of Oregon, with small areas over the state border in Idaho and Washington. It extends from the Redmond… …
