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2 results for “near-endemic”
Linked collectors and determiners for: Mozambique Endemic and Near-Endemic Red Listed Plant Species.
Natural history specimen data linked to collectors and determiners held within, "Mozambique Endemic and Near-Endemic Red Listed Plant Species". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/db3c013f-00d0-4146-be65-86e89cbf1436">https://bionomia.net/dataset/db3c013f-00d0-4146-be65-86e89cbf1436</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/db3c013f-00d0-4146-be65-86e89cbf1436">https://gbif.org/dataset/db3c013f-00d0-4146-be65-86e89cbf1436</a>. Formatted as a Frictionless Data package.
Ecological Modelling of the Macaronesian-Mediterranean Junipers (Juniperus L. Sect. Juniperus) and conservation of the near-endemic tree Juniperus navicularis Gand. - Digital Annex
<p>Digital Annex for the following thesis:</p> <p>Ferreira, C. (2024) Ecological Modelling of the Macaronesian-Mediterranean Junipers (<em>Juniperus </em>L. Sect. <em>Juniperus</em>) and conservation of the near-endemic tree <em>Juniperus navicularis</em> Gand.</p> <p>Abstract:</p> <p><em>Juniperus </em>L. Sect. <em>Juniperus </em>is a genus in the Cupressaceae family that includes species found in the Macaronesian and Mediterranean regions, known as needle leaved junipers. </p> <p>In this study we approached the near endemic <em>J. navicularis</em>, by reviewing its nomenclatural history and applying Species Distribution Models to infer its future suitable areas in the Iberian Peninsula to inform conservation policies of this Near Threatened (IUCN) tree.</p> <p>We then applied a deeper spatial analysis with a past-to-future narrative, by hindcasting (since the last interglacial period, 130 Kyrs) and forecasting (up to the year 2100) the distribution of eight taxa inside Section <em>Juniperus</em>, using Species Distribution Models to explore their biogeographical and ecological dynamics, inferring about the main ecological drivers that shaped their distribution across eleven periods (seven past, current and three future scenarios). </p> <p>Results vary significantly between species. Models applied at a fine-scale (1 km) resolution and a wide range of bioclimatic and edaphic variables, for<em> J. navicularis</em>' show a major decline by 2070, followed by a slight increase of suitable area towards northern latitudes by 2100. This contrasts with Chapter 4, when using a coarser resolution (10 km) and a different variable set, where overall trends reflect global contractions across several species.</p> <p>Results evidenced by the multispecies approach show an increase in the suitability areas for <em>J. deltoides</em>, while the Macaronesian <em>J. brevifolia</em> and <em>J. cedrus</em> maintaining their areas, with the remaining <em>J. cedrus</em> subsp. <em>maderensis</em>, suffering slight decrease of suitability in the lower areas of the Madeira Island. Significant contractions were observed for the remaining continental junipers. </p> <p>Finally, we discuss our results and findings considering the need to implement conservation measures to ensure the long-term survival of these species, and the importance of their forests in a growing dryer environment were they behave as pioneer species and foundational species.</p>
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