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

Conservation of Declining Populations02:07

Conservation of Declining Populations

9.5K
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.
9.5K
Speciation Rates01:07

Speciation Rates

20.7K
Overview
20.7K
Migration00:53

Migration

7.8K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
7.8K
Gene Flow02:39

Gene Flow

34.2K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
34.2K
Distribution and Dispersion00:54

Distribution and Dispersion

21.2K
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...
21.2K
Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

3.4K
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;...
3.4K

You might also read

Related Articles

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

Sort by
Same author

Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal.

Conservation biology : the journal of the Society for Conservation Biology·2026
Same author

Temporal changes in soil carbon and nitrogen in response to grazing management and vegetation cover in south-eastern Australia.

PloS one·2026
Same author

Contrasting pathways to tree longevity in gymnosperms and angiosperms.

Nature communications·2025
Same author

Fencing the Flux: Seasonal Trends, Environmental Drivers, and Mitigation Opportunities of Methane Emissions From Farm Dams.

Global change biology·2025
Same author

Removing dead trees will not save us from fast-moving wildfires.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Evolution of research on global amphibian declines.

Conservation biology : the journal of the Society for Conservation Biology·2025

Related Experiment Video

Updated: May 7, 2025

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.0K

Multiple Long-Term, Landscape-Scale Data Sets Reveal Intraspecific Spatial Variation in Temporal Trends for Bird

David Lindenmayer1, Ben C Scheele1, Elle Bowd1

  • 1Fenner School of Environment and Society, The Australian National University, Canberra, ACT, Australia.

Ecology Letters
|December 31, 2024
PubMed
Summary

Ecological studies reveal that bird species occupancy trajectories vary significantly across different long-term monitoring projects, indicating non-stationarity. This highlights the need for diverse, large-scale studies to inform effective wildlife conservation strategies.

Keywords:
South‐Eastern Australiaclimate drivers of variation in bird site occupancyniche‐centroid analysisnon‐stationarityspatially separated long‐term studiesthe abundant‐centre hypothesis

More Related Videos

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

13.3K
Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients
07:34

Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients

Published on: August 22, 2018

8.2K

Related Experiment Videos

Last Updated: May 7, 2025

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.0K
Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

13.3K
Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients
07:34

Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients

Published on: August 22, 2018

8.2K

Area of Science:

  • Ecology
  • Conservation Biology
  • Biodiversity Science

Background:

  • Quantifying temporal changes in species occurrence is fundamental to ecological research.
  • Long-term, large-scale studies are crucial for understanding population dynamics and environmental impacts.

Purpose of the Study:

  • To quantify multidecadal site occupancy trajectories for 18 bird species across four independent, large-scale studies in Australia.
  • To investigate patterns of non-stationarity in species occupancy over time and their relationship with species' niche positions and climatic values.

Main Methods:

  • Analysis of multidecadal site occupancy data from 571 sites spanning approximately 1000 km of latitude.
  • Statistical modeling to identify year × long-term study interactions and assess temporal trajectory variations.
  • Comparison of occupancy patterns with species niche centroids and climatic data.

Main Results:

  • A year × long-term study interaction was detected in 14 of 18 species, indicating non-stationary occupancy trajectories.
  • Non-stationarity in occupancy patterns was not correlated with a species' distance from its niche centroid.
  • Temporal occupancy trajectories showed no association with study-specific climatic values relative to species' niches.

Conclusions:

  • Species occupancy trajectories can exhibit non-stationarity, varying even for the same species across different long-term studies.
  • Conservation decisions require data from multiple, geographically dispersed long-term studies to account for regional variations in population dynamics.
  • Understanding non-stationarity is essential for robust ecological inference and effective wildlife management across species' ranges.