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

11.6K
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.
11.6K
Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

29
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
29
Dementia l: Introduction01:22

Dementia l: Introduction

35
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
35
Biodeterioration01:28

Biodeterioration

97
Biodeterioration refers to the unwanted alteration of materials caused by microorganisms—especially fungi—which damage both organic substrates (paper, wood, textiles) and inorganic ones (stone, plaster, glass). Unlike abiotic decay, biodeterioration results from biological activity that produces physical disruption and chemical degradation.Physical deterioration occurs as fungal hyphae penetrate pores, cracks, and surface irregularities. Hyphal turgor pressure, thigmotropic growth...
97
Threats to Biodiversity01:50

Threats to Biodiversity

21.9K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
21.9K
Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

34
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
34

You might also read

Related Articles

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

Sort by
Same author

Predicting Ozone Uptake from Meteorological and Environmental Variables.

Journal of the Air & Waste Management Association (1995)·2017
Same author

Growth impact of O3, NO 2 and/or SO 2 on pinus taeda.

Environmental monitoring and assessment·2013
Same author

Ozone uptake (flux) as it relates to ozone-induced foliar symptoms of Prunus serotina and Populus maximowiziixtrichocarpa.

Environmental pollution (Barking, Essex : 1987)·2007
Same author

Seasonal trends in reduced leaf gas exchange and ozone-induced foliar injury in three ozone sensitive woody plant species.

Environmental pollution (Barking, Essex : 1987)·2005
Same author

Physiological and foliar symptom response in the crowns of Prunus serotina, Fraxinus americana and Acer rubrum canopy trees to ambient ozone under forest conditions.

Environmental pollution (Barking, Essex : 1987)·2004
Same author

Responses of hybrid poplar clones and red maple seedlings to ambient O(3) under differing light within a mixed hardwood forest.

Environmental pollution (Barking, Essex : 1987)·2004
Same journal

Mercury exposure in wintering Cinereous vultures (Aegypius monachus) on the Korean Peninsula: tissue and feather distribution and associations with brain cholinesterase activity.

Environmental monitoring and assessment·2026
Same journal

Modulation of fine aerosol ionic profiles and chemical characteristics by crop residue burning over the North-Western Indo-Gangetic Plain.

Environmental monitoring and assessment·2026
Same journal

Green citrate sol-gel synthesis of CuMn₂O₄/Dy₂O₃ nanocomposite for efficient separation, preconcentration, and determination of Cd(II) in food and environmental samples.

Environmental monitoring and assessment·2026
Same journal

Risk elements contamination in the riverbed sediments of the Xiangjiang River, China: a review.

Environmental monitoring and assessment·2026
Same journal

Effects of the built environment on the quantity, quality, and ecological functions of dissolved organic matter and nutrients in the residential stormwater ponds (Florida, USA).

Environmental monitoring and assessment·2026
Same journal

Development and application of a Schiff-base colorimetric sensor for lead (Pb<sup>2+</sup>) detection in borehole water from Kaduna metropolis, Nigeria.

Environmental monitoring and assessment·2026
See all related articles

Related Experiment Video

Updated: May 5, 2026

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa
07:14

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa

Published on: August 30, 2018

6.6K

Forest decline versus tree decline-the pathological considerations.

J M Skelly1

  • 1Department of Plant Pathology, The Pennsylvania State University, 16802, University Park, PA, USA.

Environmental Monitoring and Assessment
|November 20, 2013
PubMed
Summary
This summary is machine-generated.

Eastern US forests face harmful air pollutants like ozone and acidic deposition. However, forest declines are often caused by biotic and abiotic factors, not solely air pollution stress.

More Related Videos

A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges
09:33

A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges

Published on: March 5, 2015

30.8K
Advanced Workflow for Taking High-Quality Increment Cores - New Techniques and Devices
07:40

Advanced Workflow for Taking High-Quality Increment Cores - New Techniques and Devices

Published on: March 10, 2023

4.4K

Related Experiment Videos

Last Updated: May 5, 2026

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa
07:14

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa

Published on: August 30, 2018

6.6K
A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges
09:33

A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges

Published on: March 5, 2015

30.8K
Advanced Workflow for Taking High-Quality Increment Cores - New Techniques and Devices
07:40

Advanced Workflow for Taking High-Quality Increment Cores - New Techniques and Devices

Published on: March 10, 2023

4.4K

Area of Science:

  • Forest pathology
  • Environmental science
  • Ecology

Background:

  • Eastern United States forests are exposed to phytotoxic levels of gaseous air pollutants.
  • Ozone is a primary regional air pollutant of concern.
  • Acidic deposition is also implicated in forest decline.

Purpose of the Study:

  • To evaluate the role of air pollutants versus other factors in forest tree declines.
  • To highlight the significance of biotic and abiotic agents in inciting forest diseases.

Main Methods:

  • Literature review of forest pathology, entomology, and stress complexes.
  • Analysis of causal factors in historical forest tree declines.

Main Results:

  • Forest tree declines have historically been explained by pathological, entomological, and abiotic stress complexes.
  • Biotic and abiotic agents can directly cause forest tree diseases.

Conclusions:

  • While air pollutants like ozone and acidic deposition pose risks, they are not the sole drivers of forest decline.
  • Forest biologists must consider numerous direct biotic and abiotic causes of tree diseases independent of air pollution-induced stress.