Public preference for the ecological restoration of coastal wetlands in Jiaozhou Bay in China based on a choice experiment

Coastal wetland mapping plays an essential role in monitoring climate change, the hydrological cycle, and water resources. In this study, a novel classification framework based on the gravitational optimized multilayer perceptron classifier and extended multi-attribute profiles (EMAPs) is presented for coastal wetland mapping using Sentinel-2 multispectral instrument (MSI) imagery. In the proposed method, the morphological attribute profiles (APs) are firstly extracted using four attribute filters based on the characteristics of wetlands in each band from Sentinel-2 imagery. These APs form a set of EMAPs which comprehensively represent the irregular wetland objects in multiscale and multilevel. The EMAPs and original spectral features are then classified with a new multilayer perceptron (MLP) classifier whose parameters are optimized by a stability-constrained adaptive alpha for a gravitational search algorithm. The performance of the proposed method was investigated using Sentinel-2 MSI images of two coastal wetlands, i.e., the Jiaozhou Bay and the Yellow River Delta in Shandong province of eastern China. Comparisons with four other classifiers through visual inspection and quantitative evaluation verified the superiority of the proposed method. Furthermore, the effectiveness of different APs in EMAPs were also validated. By combining the developed EMAPs features and novel MLP classifier, complicated wetland types with high within-class variability and low between-class disparity were effectively discriminated. The superior performance of the proposed framework makes it available and preferable for the mapping of complicated coastal wetlands using Sentinel-2 data and other similar optical imagery.

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Biota of coastal wetlands of Praia da Vitória (Terceira Island, Azores): Part 2 - Bryophytes

Biodiversity Data Journal ◽

10.3897/bdj.7.e34621 ◽

2019 ◽

Vol 7 ◽

Cited By ~ 1

Author(s):

Rosalina Gabriel ◽

César Pimentel ◽

David Claro ◽

Mariana Brito ◽

Javier Díaz-Castillo ◽

...

Keyword(s):

Ecological Restoration ◽

New Taxa ◽

Coastal Wetlands ◽

Coastal Wetland ◽

New Records ◽

Biodiversity Assessment ◽

Moss Species ◽

Extensive Survey ◽

Before And After ◽

European Distribution

During the LIFE-CWR project "Ecological Restoration and Conservation of Praia da Vitória Coastal Wet Green Infrastructures", there was the opportunity to undertake a systematic record of bryophytes at Paul da Praia da Vitória (PPV), Paul do Belo Jardim (PBJ) and Paul da Pedreira do Cabo da Praia (PPCP), three coastal wetland areas of Praia da Vitória (Terceira, Azores, Portugal). The objective of the study was to perform a biodiversity assessment, comparing the three sites at two different moments, before and after the implementation of several conservation measures. This project also contributed to improve the knowledge of Azorean bryophyte diversity at both local and regional scales, including the recording of two new taxa for the Azores and three new taxa for Terceira Island. This paper reports the results of the first extensive survey of bryophyes of the three coastal wetland areas of Praia da Vitória (Terceira Island, Azores, Portugal). The identification of a total of 504 samples, 240 collected in 2013 and 2016 (before the LIFE-CWR intervention) and 265 in 2017 and 2018 (after the intervention), resulted in a list of 58 species of bryophytes (one hornwort, eight liverworts and 48 mosses). These include two new records for the Azores (Bryumklinggraeffii, Ptychostomumbornholmense), three new records for Terceira Island (Bryumtenuisetum, Dicranellahowei, Trichostomumcrispulum) and at least 15 new records for the municipality of Praia da Vitória (e.g., Cephaloziellahampeana). Some species that had not been recorded on the island since 1937 (e.g., Fissidenscrispus) were collected during this study, as well as a Macaronesian endemic liverwort (Radulawichurae), an Iberian-Macaronesian liverwort (Frullaniaazorica) and a moss species with European distribution (Ptychomitriumnigrescens). From the recorded species, only one moss (Leptophascumleptophyllum), of subtropical origin, is considered invasive in Europe.

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