population
Let an agent handle populations by species or group, area, time, size and trend, with sourced estimates and uncertainty.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle populations by species or group, area, time, size and trend, with sourced estimates and uncertainty.
All the organisms of the same group or species living in a particular area at a given time, and the number of such organisms as a statistic.
What it is for: Tracking and managing organisms, from wildlife to fish stocks and invasive species.
It can be count or estimate it; monitor trends; manage it, through conservation or control; model its dynamics.
Distinguishing features
Same group in one area and time
Size is usually estimated with uncertainty
Native, invasive and managed populations differ
Human population is a separate entry
What it looks like
Groups of organisms in an area; numbers in surveys and reports.
How it is recognised
Survey counts and estimates
Population trend charts
Examples such as the deer of Nara or fish stocks
Related models
is made of - members
has kind - people
is studied by - population ecology
is measured as - count
In practice
Families and kinds
wildlife populations
fish stocks
invasive populations
captive and managed populations
microbial populations
Standards and regulation
IUCN Red List criteria
Fisheries management rules
Invasive species regulations
Failure modes and hazards
Treating estimates as exact counts
Comparing surveys with different methods
Revealing locations of vulnerable populations
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.population-act
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Definition Which population.
Species, area and time define it.
Group
Species or group.
Group
Group and area.
- Which species or group, in which area? definition
- At what time? definition
Status
Native, invasive, managed.
Status
Status.
- Is the population native, invasive or managed? boundary
- Is it protected? boundary
Size How many.
Estimates need methods.
Estimate
Count or model.
Estimate
Size estimate.
- How large is the population, by which method? measurement
- What is the confidence interval? measurement
Trend
Change.
Trend
Trend over time.
- Is it growing or declining? measurement
- Over what period? provenance
Drivers Why it changes.
Drivers guide management.
Factors
Food, predation, habitat.
Factors
Drivers of change.
- What drives changes in this population? definition
- How strong is the evidence? measurement
Models
Projections.
Models
Population models.
- What do models project? provenance
- Under which assumptions? boundary
Management Conservation and control.
Management acts on evidence.
Actions
Measures.
Actions
Management actions.
- Which management actions apply? action
- Are they effective? measurement
Data sensitivity
Locations.
Sensitivity
Sensitive data.
- Should precise locations be withheld? boundary
- Who may access them? boundary
What the second pass must settle
- Should populations be instances by species and area?
- How should survey methods be recorded?
- How should sensitive location data be protected?