UMR-CNRS-IRD-MNHN-UPMC 7138, Systématique-Adaptation-Evolution, Equipe « Biologie de la mangrove », Université des Antilles et de la Guyane, UFR des Sciences Exactes et Naturelles, Département de Biologie, BP 592, 97159 Pointe-à-Pitre Cedex, Guadeloupe, France.
Mar Environ Res. 2013 Jun-Jul;87-88:85-95. doi: 10.1016/j.marenvres.2013.03.007. Epub 2013 Apr 15.
Wood debris are an important component of mangrove marine environments. Current knowledge of the ecological role of wood falls is limited by the absence of information on metazoan colonization processes over time. The aim of this study was to provide insights to their temporal dynamics of wood eukaryotic colonization from a shallow water experiment in a mangrove swamp. Combined in situ chemical monitoring and biological surveys revealed that the succession of colonizers in the mangrove swamp relates with the rapid evolution of sulfide concentration on the wood surface. Sulfide-tolerant species are among the first colonizers and dominate over several weeks when the sulfide content is at its maximum, followed by less tolerant opportunistic species when sulfide decreases. This study supports the idea that woody debris can sustain chemosynthetic symbioses over short time-scale in tropical shallow waters.
木碎是红树林海洋环境的重要组成部分。目前，由于缺乏有关后生动物随时间推移而殖民过程的信息，因此对木落的生态作用的了解有限。本研究的目的是从红树林沼泽的浅水实验中提供有关其木质真核生物殖民化时间动态的见解。结合原位化学监测和生物调查表明，红树林沼泽中殖民者的演替与木材表面硫化物浓度的快速演变有关。耐硫化物的物种是最早的殖民者之一，当硫化物含量达到最大值时，它们会在数周内占主导地位，而当硫化物减少时，耐受力较低的机会主义物种则会占据优势。这项研究支持了这样一种观点，即在热带浅水中，木质碎屑可以在短时间内维持化能共生关系。
