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Audience is Undergraduate lower division 13-14
Results 361 - 370 of 403
View Resource The Invasive Grass-Fire Cycle in the U.S. Great Basin

Students will exercise critical thinking skills to form a hypothesis on how cheatgrass alters fire behaviors. Students will analyze data and answer questions based on their interpretation of...

View Resource The Kuparuk River, an arctic stream ecosystem on the North Slope of Alaska.

The Kuparuk River flows to the Arctic Ocean from the foothills of the Brooks Range, seen to the south in the background. The Kuparuk River was experimentally enriched with phosphorus every summer...

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View Resource The National Image Library

The National Image Library contains the U.S. Fish and Wildlife Service's online collection of public domain still photographs. The searchable database contains still photo images of wildlife, plants...

View Resource The partitioning of evapotranspiration into evaporation and transpiration: an experimental design assessing the effects of changes in vegetation cover

This project seeks to improve the studentís understanding of the terrestrial water budget by exploring the dynamics of one of its major components: evapotranspiration, a process that includes the...

View Resource The Poppy Paradox and Novel Derivation for the Demographic Conditions Favoring the Evolution of Semelparity

This article derives the semelparity model in a novel, more intuitive manner.

View Resource The red rock crab (Cancer productus) with the shell of a prey species, the native littleneck clam (Protothaca staminea).

The red rock crab (Cancer productus) is a predator of intertidal clams along the Pacific coastlines of northwestern United States and British Columbia. The crab is shown with the shell of a prey...

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View Resource The rocky intertidal at Santa Cruz Island, California.

Mussels in the rocky intertidal experience rapid fluctuations in aerial body temperature during low tide. Because of variability in tidal and climatic regimes, geographic gradients in body...

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View Resource The southern sea otter (Enhydra lutris nereis), a threatened sea otter subspecies.

The southern sea otter (Enhydra lutris nereis) has received much public attention, yet its recovery continues to falter. There are few, if any, reliable estimates of demographic rates, such as birth...

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View Resource The sunset wrasse (Thalassoma grammaticum), one of many shorefish species endemic to the isolated Tropical Eastern Pacific.

The sunset wrasse (Thalassoma grammaticum) is one of over 700 shorefishes endemic to the Tropical Eastern Pacific, an isolated tropical marine region with a high level of endemism (>70%) among its...

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View Resource The surface of a peatland in Claish Moss, Scotland.

Peat forms when plant material is inhibited from full decomposition by acidic and anaerobic conditions. The development and expansion of northern peatlands after glacial retreats thousands of years...

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