{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:13:24Z","timestamp":1760058804295,"version":"build-2065373602"},"reference-count":76,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T00:00:00Z","timestamp":1745798400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Agenda Transform","award":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"],"award-info":[{"award-number":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"]}]},{"name":"Mobilization Agendas for Business Innovation","award":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"],"award-info":[{"award-number":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"]}]},{"name":"Recovery and Resilience Plan (PRR) and European Funds NextGeneration EU","award":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"],"award-info":[{"award-number":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"]}]},{"name":"the INTERREG-SUDOE Programme through the European Regional Development Fund","award":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"],"award-info":[{"award-number":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"]}]},{"name":"National Funds by FCT\u2014Portuguese Foundation for Science and Technology","award":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"],"award-info":[{"award-number":["C644865735-00000007","BI\/UTAD\/56\/2023","02\/C05-i01\/2021","SOE3\/P4\/F0898","UID\/04033","LA\/P\/0126\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Forests"],"abstract":"<jats:p>The resilience and regeneration of cork oak (Quercus suber L.) play a central role in sustaining the European oak landscape, particularly within the socio-economic and ecological frameworks of the Western Mediterranean. This species has a noticeable ability to withstand drought and temperature extremes. However, its natural regeneration is increasingly challenged by climate change and associated extreme weather events, as well as by competition among individuals for light, water, and nutrients. Monitoring this process in the field can be time-consuming, requiring the use of sampling techniques and the identification of appropriate inventory sampling design (ISD) schemes. Line transect (LT) and radial cluster (RC) inventory designs are widely used in ecological studies, botanical research, and plant species distribution assessments, as well as other environmental forestry studies. This research compares two inventory sampling designs (line transect vs. radial cluster) for inventorying and monitoring the dynamics of natural regeneration at the initial development stages of cork oak. In particular, this study evaluates the influences of inventory sampling design, time, and acorn density on the total living and dead seedlings over a two-year period, using the cork oak as a reference species in the Mediterranean climate of Northern Portugal. The results confirm the critical role of acorn availability in seedling regeneration dynamics within cork oak ecosystems and emphasize a temporal increase in the death of seedlings, markedly influenced by the day of year. The temporal component had a substantial impact on seedling mortality, which increased by 5.00\u2030 per day, meaning that one seedling died approximately every 200 days, whereas mortality spikes occur on specific days, suggesting temporal factors affecting seedling viability. The study also shows differences in regeneration estimates between the inventory designs. The line transect design records lower acorn density and seedlings than the radial cluster design. The results highlight an important but often overlooked source of variation in forest regeneration studies, emphasizing the need for careful consideration of inventory methods to ensure effective data collection and accurate representation of natural regeneration dynamics, ultimately supporting efforts to enhance cork oak regeneration and resilience against climate change and competitive pressures.<\/jats:p>","DOI":"10.3390\/f16050751","type":"journal-article","created":{"date-parts":[[2025,5,4]],"date-time":"2025-05-04T20:42:37Z","timestamp":1746391357000},"page":"751","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Regeneration Patterns in Cork Oak (Quercus suber L.) Stands: Insights from Transect and Cluster Sampling Inventory Designs"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3745-9582","authenticated-orcid":false,"given":"Angelo","family":"Fierravanti","sequence":"first","affiliation":[{"name":"Departamento de Ci\u00eancias Florestais e Arquitetura Paisagista, Universidade de Tr\u00e1s-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal"},{"name":"Centre for the Research and Technology of Agroenvironmental and Biological Sciences, CITAB, Inov4Agro, Universidade de Tr\u00e1s-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6269-3605","authenticated-orcid":false,"given":"Teresa Fidalgo","family":"Fonseca","sequence":"additional","affiliation":[{"name":"Departamento de Ci\u00eancias Florestais e Arquitetura Paisagista, Universidade de Tr\u00e1s-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal"},{"name":"Centre for the Research and Technology of Agroenvironmental and Biological Sciences, CITAB, Inov4Agro, Universidade de Tr\u00e1s-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1038\/ngeo2891","article-title":"Warm Mediterranean Mid-Holocene Summers Inferred from Fossil Midge Assemblages","volume":"10","author":"Samartin","year":"2017","journal-title":"Nat. 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