Recent advances in animal tracking reveal that many species display irregular movements that do not fall into classical categories of movement patterns such as range residency or migration. Here, we develop a unifying framework that distinguishes these nomadic movements based on their patterns, drivers, and mechanisms. Though they occur in diverse taxa and geographic regions, nomadic movements are united by both their underlying environmental drivers, mainly environmental stochasticity, and the resulting irregular, far-ranging movement patterns. The framework further classifies types of nomadic movements, including full, seasonal, phase, irruptive, and partial nomadism. Nomadic movements can have unique effects on populations, communities, and ecosystems, most notably providing intermittent disturbances and novel introductions of propagules.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.tree.2019.02.005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Large-scale sampling of potential breeding sites in male ruffs.
Proc Biol Sci
January 2025
Department of Ornithology, Max Planck Institute for Biological Intelligence, Eberhard-Gwinner Strasse, Seewiesen 82319, Germany.
The traditional narrative of the life cycle of migratory birds is that individuals perform long-distance movements between a breeding and a wintering site, but are largely resident at those sites. Although this pattern may apply to socially monogamous species with biparental care, in polygamous systems, the sex that only provides gametes may benefit from continuing to move and sample several potential breeding sites during a single breeding season. Such behaviour would blur the distinction between migration and breeding.
View Article and Find Full Text PDFWaterbirds are highly mobile and have the ability to respond to environmental conditions opportunistically at multiple scales. Mobility is particularly crucial for aggregate-nesting species dependent on breeding habitat in arid and semi-arid wetlands, which can be ephemeral and unpredictable. We aimed to address knowledge gaps about movement routes for aggregate-nesting nomadic waterbird species by tracking them in numbers sufficient to make robust assessment of their movement patterns.
View Article and Find Full Text PDFAre Metal Concentrations in Lesser Flamingo Eggs and Eggshells Good Indicators of Environmental Pollution?
Arch Environ Contam Toxicol
November 2024
Research Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
Article Synopsis
- Metallic elements can harm flamingos, which may accumulate these metals from the saline waters where they live and breed, impacting their organs, feathers, and eggs.
- A study on Lesser Flamingo eggs in South Africa found metal pollution, particularly concerning levels of strontium and copper, indicating potential reproductive stress and varying metal concentrations due to their nomadic lifestyle.
- While flamingo eggs are not reliable indicators of environmental metal pollution, the research reveals that chicks may be more vulnerable to pollutants after hatching, highlighting the need for better protection strategies for this bird family.
Satellite telemetry reveals complex mixed movement strategies in ibis and spoonbills of Australia: implications for water and wetland management.
Mov Ecol
November 2024
University of Canberra, Canberra, ACT, 2615, Australia.
Waterbird population and species diversity maintenance are important outcomes of wetland conservation management, but knowledge gaps regarding waterbird movements affect our ability to understand and predict waterbird responses to management at appropriate scales. Movement tracking using satellite telemetry is now allowing us to fill these knowledge gaps for highly mobile waterbirds at continental scales, including in remote areas for which data have been historically difficult to acquire. We used GPS satellite telemetry to track the movements of 122 individuals of three species of ibis and spoonbills (Threskiornithidae) in Australia from 2016 to 2023.
View Article and Find Full Text PDFExperiences of violence while in insecure migration status: a qualitative evidence synthesis.
Global Health
November 2024
University of Bristol, Canynge Hall, 39 Whatley Road, Bristol, BS8 2PS, UK.
Background: The global movement of people in the context of strict immigration laws and policies places significant numbers of people in insecure migration status worldwide. Insecure status leaves people without recourse to legal, governmental or social protection from violence and abuse. This review synthesized qualitative studies that reported how migrants associated physical and physically enforced sexual violence they experienced with their insecure migration status.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!