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Ecological inflection points
Ecological threshold is the point at which a relatively small change or disturbance in external conditions causes a rapid change in an ecosystem. When
Ecological_threshold
Study of organisms and their environment
relating to adaptation and natural selection are cornerstones of modern ecological theory. Ecosystems are dynamically interacting systems of organisms, the
Ecology
Graphical representation of biomass or biomass productivity
An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show
Ecological_pyramid
Capacity of ecosystems to resist and recover from change
life without compromising that of future generations. Ecological resilience and the thresholds by which resilience is defined are closely interrelated
Ecological_resilience
Community of living organisms together with the nonliving components of their environment
An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. The biotic and abiotic components are linked
Ecosystem
Effect that organisms have on other organisms
indirect through intermediaries such as shared resources, territories, ecological services, metabolic waste, toxins, or growth inhibitors. This type of
Biological_interaction
Predator at the top of a food chain
be apex predators as their behavior cannot be observed, and clues to ecological relationships, such as bite marks on bones or shells, do not form a complete
Apex_predator
Aspect of ecosystems
variable providing a measure of the passage of energy and an index of ecological structure that increases through the linkages from the lowest to the highest
Food_chain
Topics referred to by the same term
potential Ecological threshold Error threshold (evolution) Extinction threshold Lasing threshold Percolation threshold Polygyny threshold model Threshold cryptosystem
Threshold
Non-living factors that affect organisms and ecosystems
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Abiotic_component
Organism that eats mostly or exclusively animal tissue
(PDF) from the original on 10 September 2008. Stanley, S. M. (1973). "An ecological theory for the sudden origin of multicellular life in the Late Precambrian"
Carnivore
Type of heterotrophic nutrition based on decayed organic matter
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Saprotroph
Study of distribution of species
combines information and ideas from many fields, from the physiological and ecological constraints on organismal dispersal to geological and climatological phenomena
Biogeography
Ecological theory concerning the selection of life history traits
distinct roles in the ecological succession that regenerates the ecosystem. Because of their higher reproductive rates and ecological opportunism, primary
R/K_selection_theory
Efficiency of energy transfer from one trophic level to next
Ecological efficiency is the efficiency with which energy is transferred from one trophic level to the next. It is determined by a combination of efficiencies
Ecological_efficiency
Maximum population size of a species that an ecosystem can support
support a positive natural increase; should it find itself above that threshold the population typically decreases. Thus, the carrying capacity is the
Carrying_capacity
Behavior characterized by activity during the night and sleeping during the day
of resources but by the amount of time (i.e. temporal division of the ecological niche). Hawks and owls can hunt the same field or meadow for the same
Nocturnal_animal
Virus that infects bacteria
viruses at the treatment's conclusion. Establishing a secure discharge threshold, studies have determined that discharges below 3000 PFU/100 mL are considered
Bacteriophage
Biological process
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Chemosynthesis
Animal that can eat and survive on both plants and animals
in Paleoecology: Reconstructing Cenozoic Terrestrial Environments and Ecological Communities, Vertebrate Paleobiology and Paleoanthropology, Springer International
Omnivore
Animal that feeds on decomposing plant and animal parts as well as faeces
Community-Level Interactions with Ecosystem Functioning", Advances in Ecological Research, Trait-Based Ecology – From Structure to Function, vol. 52, Academic
Detritivore
Beneficial symbiosis between species
subdominant pack members with lowered flight response, higher stress thresholds, and less wary around humans, and therefore better candidates for domestication
Commensalism
Flow of energy through food chains in ecological energetics
10% goes on to the next trophic level, and so on up the food pyramid. Ecological efficiency may be anywhere from 5% to 20% depending on how efficient or
Energy_flow_(ecology)
Change of species in a region over time
Ecological succession is the process of how species compositions change in an ecological community over time. The two main categories of ecological succession
Ecological_succession
Fit of a species living under specific environmental conditions
community. The concept of ecological niche is central to ecological biogeography, which focuses on spatial patterns of ecological communities. "Species distributions
Ecological_niche
Diversity and variations in ecosystems
ecosystems over the whole planet. Ecological diversity includes the variation in both terrestrial and aquatic ecosystems. Ecological diversity can also take into
Ecosystem_diversity
Species that is able to thrive in a wide variety of environmental conditions
reliance underscores the critical role of native plants in supporting ecological food chains. The distinction between generalists and specialists is not
Generalist and specialist species
Generalist_and_specialist_species
Associated populations of species in a given area
also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage. The term community has a variety of uses
Community_(ecology)
Organism that breaks down dead or decaying organisms
and effects on litter nitrogen and decomposition in agroecosystems". Ecological Monographs. 62 (4): 569–591. Bibcode:1992EcoM...62..569B. doi:10.2307/2937317
Decomposer
Equations modelling predator–prey cycles
equations), which is a more general framework that can model the dynamics of ecological systems with predator–prey interactions, competition, disease, and mutualism
Lotka–Volterra_equations
Dead particulate organic material
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Detritus
Interdependence of human economies and natural ecosystems
Ecological economics, bioeconomics, ecolonomy, eco-economics, or ecol-econ is both a transdisciplinary and an interdisciplinary field of academic research
Ecological_economics
Ecological communities abruptly losing biodiversity, often irreversibly
critical threshold within that ecosystem, often described as an ecological 'tipping point', then an ecosystem collapse (sometimes also termed ecological collapse)
Ecosystem_collapse
Harvestable population growth in an ecosystem
Ecological yield is the harvestable population growth of an ecosystem. It is most commonly measured in forestry: sustainable forestry is defined as that
Ecological_yield
Smallest size a biological population can exist without facing extinction
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Minimum_viable_population
Species with a large effect on its environment
Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping
Keystone_species
Process of progressive accumulation in food chain
chains/webs—Concepts and implications for wildlife and human health". Human and Ecological Risk Assessment. 25 (6): 1353–1376. Bibcode:2019HERA...25.1353A. doi:10
Biomagnification
Point where the curvature of a curve changes sign
derivatives of any order at the origin. Critical point (mathematics) Ecological threshold Hesse configuration formed by the nine inflection points of an elliptic
Inflection_point
Process of breaking down organic matter
Alla G. (2010). "Shaping eternity: the preservation of Lenin's body". Thresholds. 38: 10–13. doi:10.1162/thld_a_00170. Retrieved 31 March 2024. Milicia
Decomposition
Type of animal group activity
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Feeding_frenzy
Point at which a population cannot survive
risk. Ecological extinction Extinction vortex Small population size Population genetics Endangered species Wildlife conservation Ecological threshold Ovaskainen
Extinction_threshold
Biological interaction
ISBN 978-0-19-979706-6. Perry, Gad (January 1999). "The Evolution of Search Modes: Ecological versus Phylogenetic Perspectives". The American Naturalist. 153 (1): 98–109
Predation
Field of study
Ecological forecasting uses knowledge of physics, ecology and physiology, to predict how ecological populations, communities, or ecosystems will change
Ecological_forecasting
Phenomenon in which species sometimes prefer low-quality habitat
Ecological traps are scenarios in which rapid environmental change leads organisms to prefer to settle in poor-quality habitats. The concept stems from
Ecological_trap
Ecology term
example of how the ecological extinction of a keystone predator can reduce species diversity in an ecosystem. The threshold of ecological extinction has passed
Ecological_extinction
Variety of species in an ecological community, landscape or region
Species richness is the number of different species represented in an ecological community, landscape, or region. Species richness is simply a count of
Species_richness
Non-native organism causing damage to an established environment
environment. Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. Since the 20th century, invasive
Invasive_species
Organism type
substrates primarily include hydrogen, iron, nitrogen, and sulfur. Its ecological niche is often specialized to extreme environments, including deep marine
Autotroph
Species protected to aid further species
these species indirectly protects the many other species that make up the ecological community of its habitat (the umbrella effect). Species conservation can
Umbrella_species
Biological process to convert light into chemical energy
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Photosynthesis
Species introduced by human activity
[citation needed] The term "invasive" refers to introduced species that cause ecological, economic, or other forms of damage within the area to which they have
Introduced_species
Mode of nutrition
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Heterotrophic_nutrition
Study of environmental issues, nature and culture
The environmental humanities (also ecological humanities) is an interdisciplinary area of research, drawing on the many environmental sub-disciplines that
Environmental_humanities
Living creatures that eat organisms from a different population
anything that eats; hence the word consume which means to eat. Within an ecological food chain, consumers are categorized into primary consumers, secondary
Consumer_(food_chain)
Transition area between two biological communities
due to a locally broader range of suitable environmental conditions or ecological niches. An ecotone is often associated with an ecocline: a "physical transition
Ecotone
Mutually beneficial interaction between species
describes the ecological interaction between two or more species where each species has a net benefit. Mutualism is a common type of ecological interaction
Mutualism_(biology)
High plankton diversity despite scarce resources
phytoplankton species in ecological timescale "Science Links Japan | Spatial coexistence of phytoplankton species in ecological timescale". Archived from
Paradox_of_the_plankton
Concept in population ecology
this threshold will ultimately lead to the extinction of that parasite in that population. Facilitation processes increase the extinction threshold, making
Density_dependence
Attributes of ecosystems which signify their health
Ecological indicators are used to communicate information about ecosystems and the impact human activity has on ecosystems to groups such as the public
Ecological_indicator
Animal that feeds on carrion
Rhodes, OE; Shivik, JA (2003). "Scavenging by vertebrates: behavioral, ecological, and evolutionary perspectives on an important energy transfer pathway
Necrophage
Gradual buildup of substances in an organism
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Bioaccumulation
Typically mathematical representation of an ecological system
mathematical, representation of an ecological system (ranging in scale from an individual population, to an ecological community, or even an entire biome)
Ecosystem_model
Scientific study of renewing and restoring ecosystems
Ecological restoration, or ecosystem restoration, is the process of assisting the recovery of an ecosystem that has been degraded, damaged, destroyed or
Ecological_restoration
Algorithmic technique in ecology
(or ecological) niche modelling (ENM), habitat suitability modelling, predictive habitat distribution modelling, and range mapping uses ecological models
Species distribution modelling
Species_distribution_modelling
Cyclical change in a species' population
although the full reasons for population cycles is one of the major unsolved ecological problems. There are a number of factors which influence population change
Population_cycle
Island of the Arctic Archipelago in Nunavut, Canada
P.; Douglas, Marianne S. V. (24 July 2007). "Crossing the Final Ecological Threshold in High Arctic Ponds". Proceedings of the National Academy of Sciences
Ellesmere_Island
Position of an organism in a food chain
chain can form either a one-way flow or a part of a wider food "web". Ecological communities with higher biodiversity form more complex trophic paths.
Trophic_level
Type of environment in which an organism lives
A species' habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different
Habitat
Discontinuities in an organism's environment causing population fragmentation
and altering nutrient cycles. This underscores the severe and lasting ecological impacts of fragmentation, which could be highlighted in the sections discussing
Habitat_fragmentation
Emission of light by a living organism
adaptations have become specific to only certain luminous bacteria, to suffice ecological dependence of bioluminescence. Bioluminescence is widely studied amongst
Bioluminescence
Ecological concept
stable state theory suggests that discrete states are separated by ecological thresholds, in contrast to ecosystems which change smoothly and continuously
Alternative_stable_state
Concealment in plain sight by any means, e.g. colour, pattern and shape
strategies requires an understanding of the genetic components and various ecological pressures that drive crypsis. Camouflage is a soft-tissue feature that
Camouflage
Organisms that obtain energy by the oxidation of electron donors in their environments
Dongying; Tringe, Susannah G. (2023-01-24). "Methyl-Based Methanogenesis: an Ecological and Genomic Review". Microbiology and Molecular Biology Reviews. 87 (1):
Chemotroph
Hypothetic organism that uses kinetic energy
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Kinetotroph
Group of sympatric species with similar ecological function
A guild (or ecological guild) is any group of species that exploit the same resources, or that exploit different resources in related ways. It is not necessary
Guild_(ecology)
Number of distinct species in a biological community
Simpson index (also known as the Gini-Simpson index). When interpreted in ecological terms, each one of these indices corresponds to a different thing, and
Species_diversity
When an ecosystem does not drastically change over time even after perturbation
In ecology, an ecosystem is said to possess ecological stability (or equilibrium) if it is capable of returning to its equilibrium state after a perturbation
Ecological_stability
Ecogeographical rule in evolutionary biology
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Foster's_rule
Organism that can live in an environment that offers very low levels of nutrients
bacterial abundance and productivity in these environments. The little ecological diversity can be attributed to the lake's low annual temperatures. Species
Oligotroph
Environmental debt between Global North and South
Ecological debt refers to the accumulated debt seen by some campaigners as owed by the Global North to Global South countries, due to the net sum of historical
Ecological_debt
When a population of a species exceeds the carrying capacity of its environment
populations, which usually show irruptive growth, is proving to be of ecological concern. Ironically, where ecologists were preoccupied with conserving
Overpopulation
Ratio of animal feed to desired product
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Feed_conversion_ratio
Rocky pool on a seashore, separated from the sea at low tide, filled with seawater
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Tide_pool
Organism that eats mostly or exclusively plant material
parasitic plants. There is, however, no single exclusive and definitive ecological classification of consumption patterns; each textbook has its own variations
Herbivore
Hypothesis about plant resource use competition in community ecology
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
R*_rule_(ecology)
Fissure in a planet's surface from which heated water emits
Young CR, 3rd; Vrijenhoek, RC (13 September 2001). "Biogeography and Ecological Setting of Indian Ocean Hydrothermal Vents". Science. 294 (5543): 818–823
Hydrothermal_vent
Representation of the biotic interactions in an ecosystem
An ecological network is a representation of the biotic interactions in an ecosystem, in which species (nodes) are connected by pairwise interactions (links)
Ecological_network
Geographical area in which a species can be found
distribution models based on statistical analysis, without including ecological models and theories, are too incomplete for prediction. Instead of conclusions
Species_distribution
Plant that obtains its nutrient supply through symbiotic association with fungi
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Mycotroph
Holistic approach to the study of ecological systems
Earth system science, that takes a holistic approach to the study of ecological systems, especially ecosystems. Systems ecology can be seen as an application
Systems_ecology
Natural interconnection of food chains
of food chains and a graphical representation of what-eats-what in an ecological community. Position in the food web, or trophic level, is used in ecology
Food_web
Symbiotism between certain parasitic plants and fungi
Peter Kennedy (November 2005). "Common Mycorrhizal Networks: An Important Ecological Phenomenon". MykoWeb (originally published on Mycena News). Retrieved
Myco-heterotrophy
Group of organisms
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Primary_nutritional_groups
Exponential growth based on a constant rate
Alan Berryman, Washington State University Introduction to Social Macrodynamics Professor Andrey Korotayev Ecological Orbits Lev Ginzburg, Mark Colyvan
Malthusian_growth_model
Superseded ecological theory
The balance of nature, also known as ecological balance, is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis
Balance_of_nature
Type of species interaction
more limiting can have major effects on the structure and diversity of ecological communities; in mixed beech stands, for example, size-asymmetric competition
Competition_(biology)
Population phenomenon in biology
Therefore, when the population density or size hits a number below this threshold, the population will be destined for extinction without any further aid
Allee_effect
Organism that obtains energy from organic substrates
Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity
Organotroph
Organism using energy from light in metabolic processes
oxygen (O2) and 4 protons (H+) in the process called photolysis. In an ecological context, photoautotrophs are often the food source for neighboring heterotrophic
Phototroph
Hypothesis that predators are the primary regulators of ecosystems
ecosystem results in the near elimination of kelp forests, forming an ecological concept known as urchin barrens (Siliman and Angelini, 2012). John Terborgh
Green_world_hypothesis
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
Boy/Male
Muslim/Islamic
Threshold
Boy/Male
Muslim
Threshold
Boy/Male
Muslim
One who is economical, Thrifty
Boy/Male
Arabic, French, Gujarati, Hindu, Indian, Muslim, Sindhi
Old Arabic Name; Threshold
Girl/Female
Latin
Goddess of the threshold.
Boy/Male
Hindu, Indian
Biological
Boy/Male
Indian
One who is economical, Thrifty
Girl/Female
Latin
Goddess of the threshold.
Boy/Male
Arabic, Muslim, Sindhi
Frugal; Thrifty; Economical; One who is Economical; The Provident
Boy/Male
Arabic, Muslim
Threshold; Gateway
Biblical
threshold; silver cup
Boy/Male
Indian
Threshold
Boy/Male
Arabic, Muslim
Gateway; Threshold
Boy/Male
Biblical
Threshold, silver cup.
Surname or Lastname
English
English : variant of Selman.German (Sillmann) : possibly a variant of Sieler, or a topographic name for someone living on a ridge, from Low German süll, sill ‘sill’, ‘threshold’, ‘ramp’.
Surname or Lastname
English
English : probably a variant spelling of Purcell, or alternatively of Percil (from Old French percer ‘to pierce’ + soel, suel ‘threshold’).
Girl/Female
Australian, French, Indian, Latin, Malayalam
Cultural; Goddess of the Threshold
Boy/Male
Muslim/Islamic
One who is economical thrifty
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
Boy/Male
Hindu
Eternal, Unsurpassed
Girl/Female
Arabic
Alluring; Enchanting; Fascinating; Charming
Girl/Female
Latin
True image; honest image. Biblical - from the maiden who handed Christ her handkerchief on the...
Girl/Female
American, Australian, Christian, Danish, French, German, Hebrew
Bitter; Wished-for Child; Rebellion; Combination of Mary and Anne; Similar to Marian
Boy/Male
Australian, Lebanese
Choreographer
Girl/Female
Spanish American
Altar of heaven.
Girl/Female
Tamil
Lady of the house
Male
Hungarian
Pet form of Hungarian Ferenc, FERKÓ means "French."
Girl/Female
Latin
Wonderful.
Boy/Male
Indian, Sanskrit
Bearer of a Flute
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
ECOLOGICAL THRESHOLD
a.
Alt. of Eulogical
a.
Alt. of Neological
a.
Managed with frugality; not marked with waste or extravagance; frugal; -- said of acts; saving; as, an economical use of money or of time.
a.
Like a huswife; capable; economical; prudent.
a.
Neologic; neological.
a.
Alt. of Epilogical
a.
Alt. of Biological
adv.
In a geological manner.
a.
Alt. of Mycological
a.
Alt. of Aerological
a.
Alt. of Economical
a.
Of or pertaining to neology; neological.
a.
Relating to the means of living, or the resources and wealth of a country; relating to political economy; as, economic purposes; economical truths.
a
Alt. of Ethological
a.
Pertaining to aerography; aerological.
a.
Alt. of Geological
a.
Alt. of Necrological
adv.
In a neological manner.
a.
Alt. of Myological
a.
See Economical.