Protected area effectiveness
Protected sites are matched to unprotected sites with similar slope, remoteness and pressure, and differences in forest loss or species trends are estimated with sensitivity to hidden bias.
GCRI · Biodiversity Nexus
Conservation and restoration spend public and private money on the expectation that interventions work. Causal inference tests that expectation, estimating what protected areas, payments, restoration and policy changes achieved compared with what would have happened without them. Without that comparison, background trends are easily mistaken for success.
Causal inference and impact evaluation develop methods to determine whether and how interventions or exposures cause outcomes. They separate genuine effects from correlation. In biodiversity and nature, climate and hazards and oceans and coasts, causal inference shows which الحد من مخاطر measures actually work. It supports allocating resources toward interventions with demonstrated effect across connected risks. The canonical description is on STEM Commons.
Protected sites are matched to unprotected sites with similar slope, remoteness and pressure, and differences in forest loss or species trends are estimated with sensitivity to hidden bias.
Difference-in-differences and synthetic control designs compare enrolled land with comparable land outside a programme, before and after it starts.
Staggered adoption of moratoria, regulations or zero-deforestation commitments is used to estimate effects on clearing and on displacement of clearing to other areas.
النموذج وافتراضاته وبياناته وعدم اليقين فيه، بالصورة التي يفحصها بها عالم أو مهندس. وتتبع البنى أساليب منشورة. والقيم المرسومة توضيحية، وليست نتائج.
How a satellite or sensor record becomes evidence on impact evaluation for conservation, and where each step adds uncertainty.
Datasets and records used by causal inference and impact evaluation on this platform, with the role each plays and the label its values carry. Sources are listed in سجل المصادر.
| البيانات | الدور | الوسم |
|---|---|---|
| Global Forest Change and national land-cover series | Outcome measures | مرصود |
| Protected Planet boundaries and designation dates | Treatment timing and extent | مُعلَن |
| Programme enrolment records | Treatment assignment | مُبلَّغ عنه |
| Terrain, access and land-use covariates | Matching and adjustment | مُقدَّر |
Process explorer · Process
10 steps·4 مراحل
العملية
PRISMA 2020 إرشادات إبلاغ للمراجعات المنهجية؛ وتتبع الخطوات قائمة التحقق الخاصة بها، لا تسلسلًا إلزاميًا، ولا تعتمدها أي وثيقة من وثائق Nexus.
التقاريرOutline of an externally published reporting guideline, not a Nexus process and not a record of operation. PRISMA 2020 mainly covers reviews of intervention effects. No Nexus page names it. Every programme is at service level R0.
Identification assumptions are probed through placebo tests, falsification checks and تحليل الحساسية. Replication across settings tests external validity.
| التحقق | كيف يُنفَّذ |
|---|---|
| Covariate balance | Treated and comparison units are compared on observed characteristics before effects are estimated |
| Placebo and pre-trend tests | Effects are tested in periods and places where none should exist |
| Sensitivity to hidden bias | Results state how strong an unobserved confounder would need to be to change the conclusion |
| Spillover and leakage | Neighbouring areas are examined for displaced pressure |
Unobserved confounding and spillovers can bias estimates. Effects found in one context may not transfer to another.
التنمية الاقتصادية stewards causal inference and impact evaluation for the Consortium and reviews how it is applied across platforms.
Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
لا ترسل أبدًا بيانات شخصية أو تفاصيل حساسة عن البنية التحتية أو أي شيء لا يحق لك مشاركته. تُراجَع المساهمة قبل استخدامها؛ ولا يمنح إرسالها أي حقوق تأليف أو تحرير، ولا تشتري الرعاية أي نتيجة أبدًا.
المعلومات والاستفسارات متاحة اليوم. ويحصل الاستفسار على رقم مرجعي ويحدد الخطوة التالية؛ ولا تُفتح الطلبات والمدفوعات وتخصيصات الحوسبة والتسجيلات إلا حين يتوافر فريقها وشروطها وقدرة المراجعة.
تُعرض الخرائط والبيانات والأشكال في هذا الموقع للسياق والمعلومات العامة. وهي ليست نصيحة ولا توقعات ولا إنذارات؛ وحدود المعلومات مبيّنة في إخلاءات المسؤولية وإشعارات البيانات.
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