Flashcards
Module 8 Flashcards
Flashcards do conjunto (20)
- 1Evidence for Biodiversity CrisisIncreased extinction
Decreased habitat intactness
Lower Agro-biodiversity - 2Previous Mass ExtinctionsOrdovician
Devonian
Permian
Triassic
Cretaceous - 3Indirect Drivers of Biodiversity DeclineAnthropogenic demographic, economic, governmental factors, as well as anthropogenic conflicts and epidemics
- 4Direct Drivers of Biodiversity DeclineLand use and sea use changes
Direct exploitation
Pollution
Invasive species
Climate crisis - 5Mechanisms of Biodiversity ResponsesEvolution
Organismal physiology
Population dynamics
Species distribution
Interspecific interactions
Ecosystem services - 6Fundamental NicheDescribe an organism's tolerance to biotic and abiotic environmental conditions
- 7Realized NicheA combination of the real world conditions at a site and the fundamental niche which creates the space where the species actually exists at the site
- 8Climatic Envelope ModellingUses species distribution to predict where species might live in the future. Uses information from min temp of cold quarter, mean winter temp, precipitation levels in warm and cold quarters
- 9Factors That Increase Extinction RiskLimited distribution
Population size fewer than 8000 individuals
Large changes in natural climatic conditions
Small spatial correlations with sub-population
Long generation lengths - 10Expected Range ShiftsMovements poleward
Northern range expansion and southern range stability
In the hottest and coldest ranges, the species range will stay the same - 11Expected Changes to BiodiversityAltered:
Ecosystem structure
Species ranges
Phenologies
Life history traits - 12Expected Measurement ChangesAltered:
Maximums
Minimums
Means/averages
Frequency
Predictability
Variability - 13UN Led Intergovernmental InitiativesInclude the IPBES: Intergovernmental Science-Policy Platform of Biodiversity and Ecosystem Services, and the IPCC: International Panel on Climate Change
- 14IUCNThe International Union for Conservation of Nature is an international non-governmental initiatives that describes how at risk species are for extinction in order to inform policy decisions
- 15Ordovician ExtinctionDue to glacial/interglacial episodes and mountain formation which sequestered CO2
- 16Devonian ExtinctionGlobal cooling then warming, leading to a drawdown of CO2
- 17Permian ExtinctionSiberian volcanoes elevated CO2
- 18Triassic ExtinctionVolcanoes elevated CO2
- 19Cretaceous ExtinctionAsteroid impact furthered existing decline of species due to CO2 spike
- 20Key Theoretical Questions to Responses to the Climate Crisis by Species1. Can species respond in distribution, phenotype or phenology quickly enough?
2. Will such changes be sufficient to help them survive and reproduce?
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- Science (Bio 451) FlashCards sobre Module 8 Flashcards, criado por Natasha Gidluck em 20-03-2022.
- Criado por
- Natasha Gidluck · mar 2022
- Atualizado
- 21 abr 2022
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