在热浪事件期间,在受干扰的红树林中对的容忍度和行为反应
Mariana V Capparelli1, Rosela Pérez-Ceballos2, Nancy Yolimar Suárez-Mozo1
1Estación El Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km 9.5, 24157 Ciudad del Carmen, Mexico.
Marine pollution bulletin
|February 16, 2024
概括
红树林小提琴 (Leptuca speciosa) 在热浪期间表现出保护性的聚合行为. 然而,它们对极端热量和盐度的耐受性较低,表明它们对气候变化影响的脆弱性很高.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 气候变化科学 气候变化科学
背景情况:
- 红树林生态系统至关重要,但对环境变化敏感.
- 热浪对沿海生物多样性构成重大威胁.
- 小提琴 Leptuca speciosa 是一个重要的红树林居民.
研究的目的:
- 评估Leptuca speciosa对极端高温和盐度的耐受性和行为反应.
- 确定L. speciosa.的上临界热极限和致命盐度度.
- 在热浪条件下评估L. speciosa的安全边缘.
主要方法:
- 实地观察墨西哥尤卡坦热浪期间的行为.
- 实验室实验以确定上临界热极限 (UT99).
- 实验室实验以确定盐度的致命度 (LC99).
主要成果:
- L. speciosa表现出聚集行为,在水面上寻求庇护.
- 上临界热极限 (UT99) 在40.2°C和42°C之间.
- 盐度的致命度 (LC99) 为39 psu.
结论:
- 在热浪条件下,Leptuca speciosa表现出较低的耐受性和没有安全边际.
- 观察到保护行为,但在气候压力增加的情况下可能不足.
- 红树林生物面临着高度的脆弱性,由于多种压力因素的累积影响,如热浪.
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