Study

The effects of livestock grazing on the bog turtle [Glyptemys (= Clemmys) muhlenbergii]

  • Published source details Tesauro J. & Ehrenfeld D. (2007) The effects of livestock grazing on the bog turtle [Glyptemys (= Clemmys) muhlenbergii]. Herpetologica, 63, 293-300.

Actions

This study is summarised as evidence for the following.

Action Category

Cease livestock grazing: Wetland

Action Link
Reptile Conservation
  1. Cease livestock grazing: Wetland

    A replicated, site comparison study in 2000–2001 in wet meadow or fen areas on farmlands in New Jersey, USA (Tesauro & Ehrenfeld 2007) found that ungrazed areas had fewer bog turtle Glyptemys muhlenbergii captures and densities and lower occurrence of juvenile turtles compared to grazed sites. Overall bog turtle captures and density in formerly grazed sites (captures: 3 individuals/site; density: 8 turtles/ha) was lower than in currently grazed sites (6, 25). Juvenile turtles were found less frequently in formerly sites (33%) compared to currently grazed sites (75%). Each hectare of 12 formerly grazed (no livestock for at least 10 years) and 12 grazed (under constant grazing for >50 years; 11 grazed by cattle, one by horses) sites were visually searched for a total of 15 hours over at least three visits in April–September 2000–2001. All captured turtles were sexed, measured, marked by notching shells and released at site of capture.

    (Summarised by: Maggie Watson, Katie Sainsbury)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 19

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust