Joaquin Moreno, Maria Jose Cuesta, Pilar Torres Martínez, Pablo Ferrandis
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引用次数: 0
摘要
Helianthemum polygonoides 是一种多年生盐生植物,1987 年在科尔多瓦盐沼(西班牙东南部阿尔瓦塞特)被发现。2004 年,其分布面积约为 16 公顷,成年个体数量约为 185000 个。因此,由于其分布区域有限,该物种被视为当地特有物种,并被列为 "极度濒危"(CR)物种。本研究的主要目的是回顾这一地方特有物种的现状,更新其分布区域和当前面临的威胁,从而制定最新的保护准则。我们发现 H. polygonoides 的种群数量显著增加(2022 年普查估计为 381909 个)。我们找到了 H. polygonoides 的新种群,扩大了其核心分布区,并揭示了拟议保护措施的巩固性。在这种情况下,我们的结果证实了种群数量与保护措施之间的直接关系。根据威胁评估,我们发现大多数威胁和影响已经减少(如放牧)或停止(如瓦砾堆积)。然而,我们也发现了新的威胁(如野兔扩散、野猪破坏和火灾),这就强调了审查和更新 H. polygonoides 恢复计划的必要性。事实上,我们希望指出,上述威胁是不断变化的。我们建议纳入新的指导方针,以控制新发现的威胁,并提供八项新的保护指导方针,以改善目前 H. polygonoides 种群的保护状况。
New threats for a protected plant: the need to review and update recovery plans of endangered species.
Helianthemum polygonoides is a perennial halophyte identified in 1987 in the Saltmarsh of Cordovilla (Albacete, SE Spain). In 2004 its distribution area was approximately 16 hectares, and its population was estimated at around 185000 adult individuals. Thus, this species is considered a local endemism due to its restricted distribution area, being catalogued as a "Critically Endangered" (CR). The main goal of this study is to review the current situation of the endemism, updating its distribution area and current threats and, consequently, establishing up-to-date conservation guidelines. A marked increment in the H. polygonoides population have been found (381909 individuals were estimated in 2022 census). We located new populations of H. polygonides, increasing its core distribution area and revealing the consolidation of proposed protection measures. In this context, our results have confirmed the direct relationship between the population size and the protection measures. According to the threat’s assessment, we have observed that most of the threats and impacts have been reduced (e.g., grazing) or stopped (e.g., accumulation of debris). However, we have found new threats (e.g., rabbit proliferation, wild boar damages, and fires), emphasising the need to review and update the Recovery Plan of H. polygonoides. In fact, we want to be pointed out that the mentioned threats are in constant change. We suggest the inclusion of new guidelines to control the new-found threats and provide eight new conservation guidelines to improve the conservation status of the current populations of H. polygonoides.
期刊介绍:
Mediterranean Botany (ISSNe 2603-9109), formerly Lazaroa, is a biannual journal that publishes original research studies in the field of Botany including plant systematics, vegetation ecology, biogeography, evolutionary biology, ecophysiology, community ecology, ethnobotany and conservation biology on Mediterranean biomes but also in interacting areas.
Mediterranean Botany is an OPEN ACCESS Journal, free of charges for any published article.