Interaction between water and wind as a driver of passive dispersal in mangroves
Tom Van der Stocken,Bram Vanschoenwinkel,Dennis De Ryck,Tjeerd J. Bouma,Farid Dahdouh-Guebas,Nico Koedam +5 more
Reads0
Chats0
TLDR
Results suggest that in open water, propagule traits appear to determine the effect of water and wind currents on dispersal dynamics, which has important implications for inter- and intraspecific variation in dispersal patterns and the likelihood of reaching suitable habitat patches within a propagule's viable period.Abstract:
Although knowledge on dispersal patterns is essential for predicting long-term population dynamics, critical information on the modalities of passive dispersal and potential interactions between vectors is often missing. Here, we use mangrove propagules with a wide variety of morphologies to investigate the interaction between water and wind as a driver of passive dispersal. We imposed 16 combinations of wind and hydrodynamic conditions in a flume tank, using propagules of six important mangrove species (and genera), resulting in a set of dispersal morphologies that covers most variation present in mangrove propagules worldwide. Additionally, we discussed the broader implications of the outcome of this flume study on the potential of long distance dispersal for mangrove propagules in nature, applying a conceptual model to a natural mangrove system in Gazi Bay (Kenya). Overall, the effect of wind on dispersal depended on propagule density (g l-1). The low-density Heritiera littoralis propagules were most affected by wind, while the high-density vertically floating propagules of Ceriops tagal and Bruguiera gymnorrhiza were least affected. Avicennia marina, and horizontally floating Rhizophora mucronata and C. tagal propagules behaved similarly. Morphological propagule traits, such as the dorsal sail of H. littoralis, explained another part of the interspecific differences. Within species, differences in dispersal velocities can be explained by differences in density and for H. littoralis also by variations in the shape of the dorsal sail. Our conceptual model illustrates that different propagule types have a different likelihood of reaching the open ocean depending on prevailing water and wind currents. Results suggest that in open water, propagule traits (density, morphology, and floating orientation) appear to determine the effect of water and wind currents on dispersal dynamics. This has important implications for inter- and intraspecific variation in dispersal patterns and the likelihood of reaching suitable habitat patches within a propagule's viable period.read more
Citations
More filters
The Botany Of Mangroves
TL;DR: The the botany of mangroves is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can get it instantly.
Journal ArticleDOI
A general framework for propagule dispersal in mangroves.
Tom Van der Stocken,Tom Van der Stocken,Alison K. S. Wee,Alison K. S. Wee,Dennis De Ryck,Bram Vanschoenwinkel,Daniel A. Friess,Farid Dahdouh-Guebas,Farid Dahdouh-Guebas,Marc Simard,Nico Koedam,Edward L. Webb +11 more
TL;DR: It is shown that important dispersal factors remain understudied and that adequate empirical data on the determinants of dispersal are missing for most mangrove species, as well as the mechanisms and ecological processes that are known to modulate the spatial patterns of mangroves dispersal.
Journal ArticleDOI
Global-scale dispersal and connectivity in mangroves
TL;DR: A high-resolution, eddy- and tide-resolving numerical ocean model is used to simulate mangrove propagule dispersal across the global ocean and generates connectivity matrices between mangroves habitats using a range of floating periods, finding that dispersal distance and connectivity are highly sensitive to the minimum and maximum floating periods.
Journal ArticleDOI
Comparative Analysis of the Pattern of Population Genetic Diversity in Three Indo-West Pacific Rhizophora Mangrove Species.
TL;DR: It is concluded that genetic drift coupled with limited gene flow have played a dominant role in producing the current pattern of population genetic diversity in the IWP Rhizophora species, overshadowing the effects of their life history traits.
Journal ArticleDOI
An Analysis of the Early Regeneration of Mangrove Forests using Landsat Time Series in the Matang Mangrove Forest Reserve, Peninsular Malaysia
Viviana Otero,Ruben Van De Kerchove,Behara Satyanarayana,Husain Mohd-Lokman,Richard Lucas,Richard Lucas,Farid Dahdouh-Guebas +6 more
TL;DR: The maps created in this study can be used to guide the replantation strategies, the clear-felling planning, and the management and monitoring activities of the MMFR.
References
More filters
Journal ArticleDOI
Effects of Habitat Fragmentation on Biodiversity
TL;DR: In this article, the authors suggest that the term "fragmentation" should be reserved for the breaking apart of habitat, independent of habitat loss, and that fragmentation per se has much weaker effects on biodiversity that are at least as likely to be positive as negative.
Journal ArticleDOI
Habitat destruction and the extinction debt
TL;DR: A model is described that explains multispecies coexistence in patchy habitats and which predicts that their abundance may be fleeting, a future ecological cost of current habitat destruction.
Book
The botany of mangroves
TL;DR: The aim of this work is to contribute to the human awareness of the natural world and to contribute towards the humanizing of nature.
Journal ArticleDOI
Confounding factors in the detection of species responses to habitat fragmentation
TL;DR: This work reviews the extensive literature on species responses to habitat fragmentation, and detail the numerous ways in which confounding factors have either masked the detection, or prevented the manifestation, of predicted fragmentation effects.
Journal ArticleDOI
Mangrove forests: one of the world's threatened major tropical environments.
TL;DR: In this article, Saenger et al. reviewed the status of mangrove swamps worldwide and assessed the effect of human activities on mangroves in the coastal environment using satellite imagery.