Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

What are Populations and Communities?00:30

What are Populations and Communities?

38.6K
Overview
38.6K
Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

6.5K
A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
6.5K
Distribution and Dispersion00:54

Distribution and Dispersion

25.9K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
25.9K
Conservation of Small Populations02:04

Conservation of Small Populations

17.7K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
17.7K
Area Problem01:26

Area Problem

232
Determining the area of a region with straight edges is straightforward, as geometric formulas for rectangles, triangles, and polygons can be applied directly. However, traditional geometric methods are insufficient when a region has a curved boundary, such as the area under a function.fromThe area problem involves finding a systematic way to measure such regions. One approach to solving this problem is through approximation. Instead of attempting to compute the area exactly at the outset, the...
232
Areas Within Irregular Boundaries01:26

Areas Within Irregular Boundaries

466
Calculating areas within irregular boundaries, such as along rivers or curved roads, is crucial in various fields, including surveying, engineering, and environmental management. Surveyors often begin by creating a traverse, a connected series of straight lines approximating the area's boundary. The coordinates of each traverse point are essential for calculating the enclosed area. The double meridian distance formula is a widely used technique for this purpose. This method utilizes the...
466

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

<b>Phylogeography and genetic diversity of the Serrated Hinge-back Tortoise<i>Kinixys erosa</i> (Schweigger): implications for taxonomy and conservation</b>.

Zootaxa·2026
Same author

Contrasting patterns of alpine biodiversity across mountains and taxa worldwide.

Nature communications·2026
Same author

A Systems Perspective: How Social-Ecological Networks Can Improve Our Understanding and Management of Biological Invasions.

Bioscience·2026
Same author

Effects of Future Climate Extreme Heat Events and Land Use Changes on Land Vertebrates.

Global change biology·2025
Same author

The future-focused Proactive Conservation Index highlights unrecognized global priorities for vertebrate conservation.

PLoS biology·2025
Same author

A new species of montane Prasinohaema (Sphenomorphini: Scincidae) from the South-fold Mountains of New Guinea.

Zootaxa·2025

Related Experiment Video

Updated: Apr 3, 2026

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals
08:28

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Published on: November 6, 2016

7.2K

Home is where the shell is: predicting turtle home range sizes.

Alex Slavenko1, Yuval Itescu1, Flora Ihlow2

  • 1Department of Zoology, Tel Aviv University, 6997801, Tel Aviv, Israel.

The Journal of Animal Ecology
|September 24, 2015
PubMed
Summary

Turtle home range size is influenced more by habitat and locomotion costs than body size or diet. Aquatic turtles exhibit larger home ranges, suggesting environmental factors are key drivers.

Keywords:
body sizecheloniansenergetic constraintshome range sizemacroecologyphylogenetic generalized least square

More Related Videos

Assessing Spatial Learning and Memory in Small Squamate Reptiles
08:44

Assessing Spatial Learning and Memory in Small Squamate Reptiles

Published on: January 3, 2017

8.1K
Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status
13:18

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

12.8K

Related Experiment Videos

Last Updated: Apr 3, 2026

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals
08:28

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Published on: November 6, 2016

7.2K
Assessing Spatial Learning and Memory in Small Squamate Reptiles
08:44

Assessing Spatial Learning and Memory in Small Squamate Reptiles

Published on: January 3, 2017

8.1K
Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status
13:18

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

12.8K

Area of Science:

  • Ecology
  • Zoology
  • Comparative Physiology

Background:

  • Home range size is often linked to body size and metabolic needs.
  • Carnivore and aquatic species are hypothesized to have larger home ranges.
  • Ectotherm studies on home range determinants are scarce, with potentially different factors at play compared to endotherms.

Purpose of the Study:

  • To investigate factors influencing home range size in turtles.
  • To determine the relative importance of body mass, sex, diet, habitat, and social structure on turtle home range size.

Main Methods:

  • Literature data compilation on turtle home range sizes.
  • Phylogenetic generalized least squares analyses were employed.
  • Statistical modeling to assess predictor variable impacts.

Main Results:

  • Turtle home range size positively correlates with body mass, though it explains minimal variation.
  • Aquatic turtles possess significantly larger home ranges than semiaquatic species.
  • Dietary type (omnivorous, herbivorous, carnivorous) and sex/social structure showed no strong predictive relationship with home range size.

Conclusions:

  • Energetic constraints are not the primary drivers of home range size in turtles.
  • Energetic costs associated with locomotion in different habitats appear to be a major influencing factor.
  • Habitat type plays a more significant role than body mass or diet in shaping turtle home ranges.