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View Resource Case Study on Mark and Recapture

Estimating the population size of animals is an important task for wildlife biologists, who can use the data to assess the health of a population. It requires diligent observation skills coupled with the ability to use empirical models that effectively determine the number of animals based on field surveys. The most common method for estimating the population size of animals is mark and recapture....

 

Publisher: EcoEd Digital Library

View Resource To Plant, or Not to Plant? Regulating Invasive Plant Species in the Mid-Atlantic States: A Social-Ecological System Case Study

As invasive plant species spread across landscapes, costs of their economic and environmental impacts have sparked interest in regulating their sale and transport. Laws now prohibit the sale and movement of some species. State and local governments are drafting regulations that will affect horticulture, plant nurseries, and options for landscape design. Awareness of invasive plant species is...

 

Publisher: EcoEd Digital Library

View Resource 4DEE Activity - Estimation of Animal Population Size

This activity is a lab exercise that teaches students how to estimate animal population size. It covers two main techniques: Mark and Recapture (MR) and Capture Per Unit Effort (C/UE). The MR methods include the Lincoln-Petersen and the Schumacher-Eschmeyer approaches. Three approaches for the C/UE method are also included. This exercise is aligned with the Ecological Society of America's Four...

 

Publisher: EcoEd Digital Library

View Resource Impacts of Introduced Species: Interspecific Competition, Predation, and Other Species Interactions

Due to increasing global connectivity, global biotic interchange has been escalating, leading to species introductions in regions in which they are not indigenous. Most of these species do not establish and/or do not cause significant impacts, but a small proportion do and can have positive or, more often, negative ecological, economic, and cultural impacts. These species often interact with...

 

Publisher: EcoEd Digital Library

View Resource A 4DEE Introduction to wetlands: Basic principles, online mapping, and field identification

This lesson focuses on basic principles and identification of wetlands, which are valuable and productive ecosystems in the landscape. It consists of two files that complement each other. This first is a Powerpoint presentation that provides basic principles about wetlands. The second is a set instructions for a laboratory in which students learn how to locate wetlands using online mapping,...

 

Publisher: EcoEd Digital Library

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