Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question 2
How can we prioritise for conservation (in situ and ex situ)?
| Question | Answer |
|---|---|
| Why is prioritisation needed for in‑situ and ex‑situ conservation? Staerk et al, 2024 | Because many EU species face extinction from habitat loss, fragmentation, pollution, invasive species, and climate change, requiring strategic allocation of limited resources. |
| What is the role of ex‑situ conservation in prioritisation? Staerk et al, 2024 | Ex‑situ programs act as insurance populations until threats in the wild are mitigated, preventing extinctions when in‑situ measures alone are insufficient. |
| What framework does the IUCN recommend for integrating in‑situ and ex‑situ actions? Staerk et al, 2024 | The One Plan Approach, which manages all wild and captive populations under a single coordinated conservation plan. |
| What are the five steps of the IUCN Ex‑situ Guidelines used for prioritisation? Staerk et al, 2024 | (1) Review species status & threats, (2) Evaluate ex‑situ roles, (3) Assess biological & practical factors, (4) Appraise feasibility, risks & resources, (5) Make transparent decisions. Ref: IUCN/SSC 2014. |
| Why are zoos important for prioritising ex‑situ conservation? Staerk et al, 2024 | EU zoos hold 49% of EU terrestrial vertebrates and provide expertise in breeding, husbandry, veterinary care, and reintroduction. |
| What criteria were used to identify “at‑risk” species for prioritisation? Staerk et al, 2024 | Species that are threatened, highly climate‑vulnerable, or endemic, plus those with available habitat protection and evolutionary distinctiveness data. |
| What two conservation interventions were evaluated in the European Union prioritisation model? Staerk et al, 2024 | (1) Habitat protection (in‑situ) and (2) Captive breeding (ex‑situ). |
| How is habitat protection prioritised? Staerk et al, 2024 | By assessing whether species meet representation targets for protected areas and calculating the benefit of protecting remaining “gap areas.” |
| How is ex‑situ captive breeding prioritised? Staerk et al, 2024 | By evaluating extinction risk, breeding expertise, and whether zoos can maintain a viable insurance population of ≥100 individuals. |
| What is the Noah’s Ark prioritisation framework used for? Staerk et al, 2024 | Ranking species by combining benefits, costs, and evolutionary distinctiveness to maximise conservation impact. |
| Why is cost‑effectiveness essential in prioritisation? Staerk et al, 2024 | Because conservation budgets are limited, and prioritisation must consider both the probability of success and costs of interventions. |
| What did the model recommend for most species? Staerk et al, 2024 | Captive breeding was recommended for 60–61% of species, while habitat protection alone was recommended for only 2–22%. |
| Why must prioritisation consider decision‑maker values? Staerk et al, 2024 | Because the model was highly sensitive to how much value is placed on wild vs. captive persistence, affecting up to 73% of species recommendations. |
| Why is integrating in‑situ and ex‑situ essential for long‑term conservation? Staerk et al, 2024 | Because neither approach alone is sufficient; coordinated management maximises persistence, genetic diversity, and resilience. |
| What is the first step in prioritising species for conservation? Fussi et al 2025 | Gather information on existing populations using distribution maps, forest inventories, and owner surveys to identify viable stands. |
| Why is genetic diversity central to prioritisation? Fussi et al 2025 | High genetic diversity underpins adaptability and long‑term survival, making it essential to prioritise populations with high allelic richness and effective population size. |
| How do we prioritise populations when genetic data are lacking? Fussi et al 2025 | Select populations across different environments to capture the widest possible genetic variation. |
| What genetic metrics are most important for prioritisation? Fussi et al 2025 | Allelic richness (Ar) and effective population size (Ne), which indicate genetic variability and risk of drift or inbreeding. |
| How does endangerment status influence prioritisation? Fussi et al 2025 | Species are ranked into high, medium, or low priority based on extinction risk, population size, regeneration ability, and ecological value. |
| When should in situ conservation be prioritised? Fussi et al 2025 | When species have enough viable populations within their natural range and can regenerate naturally or with local reproductive material. |
| Why are rare species often prioritised for both in situ and ex situ conservation? Fussi et al 2025 | Rare species often have unique genetic variants and fragmented populations, making the loss of any population an irreversible genetic loss. |
| When should ex situ conservation be prioritised? Fussi et al 2025 | When species have low population density, fragmented ranges, threatened habitats, or poor natural regeneration. |
| What ex situ methods are used to preserve genetic diversity? Fussi et al 2025 | Seed orchards, clone collections, ex situ stands, long‑term seed storage, and in vitro propagation |
| Why are seed orchards important in ex situ prioritisation? Fussi et al 2025 | They maintain high genetic diversity and produce genetically variable, well‑adapted seed material for restoration. |
| How does genetic monitoring support prioritisation? Fussi et al 2025 | It detects early signs of genetic erosion, bottlenecks, and changes in effective population size, guiding conservation decisions. |
| Why is effective population size (Ne) crucial for prioritisation? Fussi et al 2025 | Ne determines how quickly genetic diversity is lost; populations with Ne < 50 are at high risk of inbreeding depression. |
| How does habitat fragmentation influence prioritisation? Fussi et al 2025 | Fragmentation reduces gene flow and increases drift, so fragmented populations may require ex situ support or stepping‑stone populations. |
| Why is species biology important in prioritisation? Fussi et al 2025 | Pollination type, dispersal ability, and regeneration patterns determine whether in situ or ex situ measures are more effective. |
| What is the role of provenance regions in prioritisation? Fussi et al 2025 | Genetic clustering and regional adaptation guide the selection of seed stands and GCUs to preserve evolutionary potential. |
Created by:
BIRDINATREE
Popular Life Science sets