Impactos Da Elevação Do Nível Médio Do Mar Sobre O Ecossistema Manguezal: A Contribuição Do Sensoriamento Remoto E Modelos Computacionais

Bezerra, Denilson da Silva; Amaral, Silvana; Kampel, Milton

doi:10.5902/2179460x12569

Cited by 3 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another hypothesis raised to explain the increase in mangrove area is the development of mangrove vegetation in new areas further inland resulting from the generalized salinization of estuaries in north-eastern Brazil (Santana et al ., 2011; Bezerra, 2014). Moreover, the north-eastern region is affected by the increase in sea level (Belchior & Salazar Primo, 2016), resulting in changes along the coastline due to erosive processes (Neves, 2003; Neves et al ., 2006; Reis, 2008).…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal dynamics of mangrove forest and association with strandings of Antillean manatee (Trichechus manatus) calves in Paraíba, Brazil

et al. 2021

View full text Add to dashboard Cite

Estuaries in Brazil are highly threatened environments and habitat loss is the main influential factor for the increase in the number of strandings of Antillean manatee (Trichechus manatus) calves in the north-eastern region of the country. The aim of the present study was to analyse and quantify the spatiotemporal dynamics of mangroves in the state of Paraíba and the association with manatee calf stranding events. The study area encompassed 10 remaining mangroves along the coast of the state, four of which were located within protected areas. Information on the mangrove forests was obtained from satellite images from the last four decades. Data on stranded Antillean manatee calves were obtained from a databank with records from 1980 to 2019. The data were analysed using geoprocessing techniques and statistical analyses. The results demonstrated changes in the mangrove forest over time, with larger areas existing during the 1980s, reductions in the following periods but a slight increase in the last decade. The number of stranded Antillean manatee calves increased over the years, with stranding events concentrated mainly on the northern coast of the state. The smallest number of stranding events occurred in the 1980s, when the mangrove forests were larger. Our findings confirm that the integrity of mangroves is of extreme importance to the maintenance and sustainability of Antillean manatee populations.

show abstract

Section: Discussionmentioning

confidence: 99%

Spatiotemporal dynamics of mangrove forest and association with strandings of Antillean manatee (Trichechus manatus) calves in Paraíba, Brazil

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The alternance of erosion processes and coastal progradation is followed by the progression and regression of mangrove forests that face the sea. In contrast, according to Bezerra et al (2013), climate change and, consequently, rising sea level directly affect mangrove forests, with the extension of such impacts depending on local characteristics. Therefore, it is not possible to state that the variations in the Mocajuba river mangrove forests are caused only by the expansion of human settlements without taking into consideration the natural conditions that also affect these environments.…”

Section: Floresta Ementioning

confidence: 99%

Temporal Analysis of the Mangrove Forest at the Mocajuba River Hydrographic Basin-Pará

et al. 2021

View full text Add to dashboard Cite

Mangrove forests are ecosystems naturally susceptible to environmental stresses, such as rising sea level and coastal erosion. However, the anthropic stresses, such as real estate speculation, deforestation and water pollution, put at risk this environment's stability, interfering with its balance. The present work's aim is to perform a temporal analysis of the mangrove forest that is a part of the Mocajuba river hydrographic basin and its buffer zone, as well as identifying natural and anthropic stresses to which the mangroves are susceptible. It was verified that the mangrove forest areas presented a substantial reduction between 1984 and 1999, and a small loss between 1999 and 2018. Thus, in the mangrove forest buffer zone, the anthropized areas increased while the forest areas decreased, demonstrating the deforestation in these areas. It can be concluded that the mangrove forest in the study region present a regression.

show abstract

“…The mangrove forests existing today in the region developed over the last 2200 years, after the return of the marine coastal line to its current position. In 2013 was discussed multiple approaches using remote sensing and modeling that could simulate mangrove responses to SLR (Bezerra, Amaral and Kampel, 2013). Most recently in 2016, a research (França et al, 2016) combined geomorphological, sedimentological, palynological, and isotope data to analyze the dynamics of mangrove forests in Southeastern Brazil within the context of millennial and secular climatic and sea-level changes.…”

Section: Introductionmentioning

confidence: 99%

Predicting the Impacts of Sea-Level Rise on the Amazon Macrotidal Mangrove Coast

Tomaz

Santos

Borges

et al. 2019

ABClima

Self Cite

View full text Add to dashboard Cite

Brazil has the largest continuous area of mangrove forests in the world, the Amazon Macrotidal Mangrove Coast (AMMC). The objective of the present study is to simulate the response of eastern Amazonian mangroves to sea-level rise, and to produce a vulnerability assessment for this section of the Brazilian coast. We used a spatially explicit model, based on cellular automata and Geographic Information System (GIS) to identify resistance patterns, migration and/or inundation of these mangroves for different events of sea-level rise (SLR). The simulation considers 90 elevation events from 0.00318 m to 0.2862 m according to an arithmetic progression of reason 0.00318 m for the time interval from 2010 to 2100. The adopted SLR rate was 3.18 mm / year (0.00318 m / year), this rate corresponds to an average of sea elevation values observed for the Brazilian coast during the mid-twentieth century and early twenty-first century. At the end of the simulation (year 2100), the original mangrove area (4,180 km 2) was reduced to 2,916 km 2 , representing a loss of 30.24%. Our simulation also showed significant landward migration of the mangroves, and the modeled loss of the original mangrove area was compensated by a net addition of 301 km 2 of new mangroves inland, a net increase of 7.2% in the total mangrove area (4,481 km 2 in 2100). These results suggest that mangrove forests in the AMMC can present a pattern of area increase and migration to the continent from the projected SLR. These findings can help the identification of migration corridors for the Amazonian mangroves and the development of adaptation strategies in face of impending SLR.

show abstract

Impactos Da Elevação Do Nível Médio Do Mar Sobre O Ecossistema Manguezal: A Contribuição Do Sensoriamento Remoto E Modelos Computacionais

Abstract: Resumo

Cited by 3 publications

References 15 publications

Spatiotemporal dynamics of mangrove forest and association with strandings of Antillean manatee (Trichechus manatus) calves in Paraíba, Brazil

Spatiotemporal dynamics of mangrove forest and association with strandings of Antillean manatee (Trichechus manatus) calves in Paraíba, Brazil

Temporal Analysis of the Mangrove Forest at the Mocajuba River Hydrographic Basin-Pará

Predicting the Impacts of Sea-Level Rise on the Amazon Macrotidal Mangrove Coast

Contact Info

Product

Resources

About