|
Abstract For understanding of the habitat suitability and optimal analysis model of fiddler crab (Uca arcuata), key environment factors affecting changes in habitat suitability, and the predictive performance, scope and limitations of application of the two habitat suitability models including habitat suitability index (HSI) model and the maximum entropy (MaxEnt) model were compared with a view to species classification of mangrove ecosystems based on the survey on mangrove macrobenthos and several environmental factors in Yanpu Bay (27.20°N, 120.45°E) Wenzhou City, Zhejiang Province during July (summer), October (autumn) and December (winter) of 2020 to provide theoretical support for applied research on biodiversity conservation and scientific basis for ecological environment governance and decision-making. HSI model analysis showed that the descending order of the habitat suitability of the sampling stations was expressed as nearshore>middle>offshore section, with the southeast>the northwest in the spatial distribution, and significantly different habitat suitability in the three seasons (P<0.05), generally as summer>autumn>winter. The analysis of the maximum entropy (MaxEnt) model revealed that the descending order of habitat suitability of the fiddler crab in each sampling site as nearshore>middle section>offshore section, the southeast>the northwest, and autumn>summer>winter in the seasonal distribution. The HSI model was shown to be more suitable for the investigation of the suitable area of the fiddler crab than the MaxEnt model being; temperature, bottom, geology and tide were the environmental factors affecting the distribution; nitrate, nitrite and salinity were the key physical and chemical factors affecting the distribution of the fiddler crab, which have a strong driving force for the distribution pattern and influence the choice of suitable habitat.
|
|
Published: 08 November 2023
|
|
|
|
|
2023, Vol. 38 
