Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

What are Populations and Communities?

What are Populations and Communities?

Populations are groups of individuals of the same species that inhabit a shared environment. Communities include multiple co-existing, interacting populations of different species. Metapopulations span multiple populations of the same species that occupy different areas. Metapopulations interact through immigration and emigration, providing genetic diversity that lends resilience to harsh environments. Population size and density can be estimated using quadrat and mark and recapture...

Understanding Species and Reproductive Barriers

Understanding Species and Reproductive Barriers

A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...

Conservation of Small Populations

Conservation of Small Populations

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 likely to...

Limits to Natural Selection

Limits to Natural Selection

Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...

Conservation of Declining Populations

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.The genetics of speciation involves the different traits or isolating mechanisms preventing gene exchange, leading to reproductive isolation. Reproductive isolation can be due to reproductive barriers that have effects either before or after the formation of a zygote. Pre-zygotic mechanisms prevent fertilization from occurring, and post-zygotic mechanisms...

You might also read

Related Articles

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

Sort by

Same author

Estimating the realised economic value of a historic Mediterranean fruit fly eradication.

Scientific reports·2025

Same author

Predicting changes in agricultural yields under climate change scenarios and their implications for global food security.

Scientific reports·2025

Same author

The public health and economic burden of long COVID in Australia, 2022-24: a modelling study.

The Medical journal of Australia·2024

Same author

Global impacts of heat and water stress on food production and severe food insecurity.

Scientific reports·2024

Same author

Optimal allocation of resources among general and species-specific tools for plant pest biosecurity surveillance.

Ecological applications : a publication of the Ecological Society of America·2024

Same author

What vaccination rate(s) minimize total societal costs after 'opening up' to COVID-19? Age-structured SIRM results for the Delta variant in Australia (New South Wales, Victoria and Western Australia).

PLOS global public health·2023

Search research articles

Related Experiment Video

Updated: Jul 13, 2026

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Published on: October 11, 2016

Delimiting a species' geographic range using posterior sampling and computational geometry.

Jonathan M Keith¹, Daniel Spring², Tom Kompas³

¹School of Mathematics, Monash University, Clayton, Victoria, 3800, Australia. jonathan.keith@monash.edu.

Scientific Reports

|June 22, 2019

Summary

This summary is machine-generated.

Accurate species range delimitation is crucial for conservation and invasion control. This study introduces a Bayesian method using imperfect survey data to estimate species boundaries, improving accuracy for ecological management.

More Related Videos

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles

Published on: July 11, 2025

Related Experiment Videos

Last Updated: Jul 13, 2026

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Published on: October 11, 2016

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles

Published on: July 11, 2025

Area of Science:

Ecology
Biogeography
Conservation Biology

Background:

Accurate species range delimitation is vital for managing biological invasions, conserving threatened species, and understanding range dynamics under environmental change.
Estimating species range boundaries is challenging due to imperfect monitoring, incomplete surveys, and patchy distributions, often leading to underestimation of true range limits.

Purpose of the Study:

To develop a novel delimitation method applicable to imperfect survey data and patchy species distributions.
To provide a probabilistic framework for estimating species range boundaries using a Bayesian approach.

Main Methods:

Developed a Bayesian method to construct polygons representing species' geographic ranges.
Utilized an agent-based Bayesian model to derive posterior distributions of range boundaries from Markov chain Monte Carlo samples.
Associated each polygon with a posterior probability of being interior to the true species boundary.

Main Results:

The method successfully generates probabilistic range polygons even with incomplete survey data.
Demonstrated the method's utility in informing real-world conservation efforts, such as the red imported fire ant eradication campaign in Australia.

Conclusions:

The new Bayesian delimitation method offers a robust approach for estimating species ranges with imperfect data.
This method enhances ecological management strategies for invasions, conservation, and understanding species' responses to environmental changes.