88 documents found, page 1 of 9
Climate-driven habitat shifts and conservation implications for the submediterr...
Passos, Isabel; Vila-Viçosa , Carlos; Gonçalves , João; Figueiredo, Albano; Ribeiro, M.M.A.Climate change poses a major threat to forests, impacting the distribution and viability of key species. Quercus pyrenaicaWilld., a marcescent oak endemic to the Iberian Peninsula (Portugal and Spain) and southwestern France and a structural species in submediterranean forests, is particularly susceptible to shifts in temperature and precipitation patterns. Aiming to assess its potential loss of suitable area u...
Uncertainties in plant species niche modeling under climate change scenarios
Passos, Isabel; Figueiredo, Albano; Almeida, Alice; Ribeiro, M.M.A.Species distribution models (SDMs) have been used to forecast the impact of climate change on species’ potential distribution, with results that might support decisions for conservation and biodiversity management. Despite their vulnerability to parameterization and data quality input, SDM use has been increasing in the last decades. In fact, inappropriate inputs and the lack of awareness about the effects of m...
Species distribution modelling under climate change scenarios for maritime pine...
Alegria, C.M.M.; Almeida, Alice; Roque, Natália; Fernandez, Paulo; Ribeiro, M.M.A.To date, a variety of species potential distribution mapping approaches have been used, and the agreement in maps produced with different methodological approaches should be assessed. The aims of this study were: (1) to model Maritime pine potential distributions for the present and for the future under two climate change scenarios using the machine learning Maximum Entropy algorithm (MaxEnt); (2) to update the...
Multitemporal land use and cover analysis coupled with climatic change scenario...
Almeida, Alice; Delgado, F.M.G.; Roque, Natália; Ribeiro, M.M.A.; Fernandez, Paulo: Climate change and land use and land cover (LULC) change are impacting the species’ geographic distribution, causing range shifts and reducing suitable habitats. Asphodelus bento-rainhae subsp. bento-rainhae (AbR) is an endangered endemic plant restricted to Serra da Gardunha (Portugal), and knowledge of those changes will help to design conservation measures. MaxEnt was used to model AbR’s current distributi...
Big data help to define climate change challenges for the typical Mediterranean...
Almeida, Alice; Ribeiro, M.M.A.; Ferreira, Miguel R.; Roque, Natália; Quintela-Sabarís, Celestino; Fernandez, PauloClimate change’s huge impact on Mediterranean species’ habitat suitability and spatial and temporal distribution in the coming decades is expected. The present work aimed to reconstruct rockrose (Cistus ladanifer L.) historical and future spatial distribution, a typically Mediterranean species with abundant occurrence in North Africa, Iberian Peninsula, and Southern France. The R ensemble modeling approach was ...
Prediction scenarios of past, present, and future environmental suitability for...
Almeida, Alice; Martins, M. João; Campagnolo, Manuel Lameiras; Fernandez, Paulo; Albuquerque, M.T.D.; Gerassis, Saki; Gonçalves, José CarlosClimate change is a challenge for forests in the coming decades, with a major impact on species adaptation and distribution. The Mediterranean Basin is one of the most vulnerable hotspots for biodiversity conservation under climate change in the world. This research aimed at studying a Mediterranean species well adapted to the region: the Arbutus unedo L. (strawberry tree). The MaxEnt, a presence-only species-d...
Modelling maritime pine (Pinus pinaster Aiton) spatial distribution and product...
Alegria, C.M.M.; Roque, Natália; Albuquerque, M.T.D.; Fernandez, Paulo; Ribeiro, M.M.A.Research Highlights: Modelling species’ distribution and productivity is key to support integrated landscape planning, species’ afforestation, and sustainable forest management. Background and Objectives: Maritime pine (Pinus pinaster Aiton) forests in Portugal were lately affected by wildfires and measures to overcome this situation are needed. The aims of this study were: (1) to model species’ spatial distrib...
The role of littoral cliffs in the niche delimitation on a microendemic plant f...
Ferreira, Miguel R.; Almeida, Alice; Quintela-Sabarís, Celestino; Roque, Natália; Fernandez, Paulo; Ribeiro, M.M.A.Obligate coastline taxa generally occupy very limited areas, especially when there is a close affinity with a specific coast type. Climate change can be a meaningful threat for them, reducing suitable habitat or forcing migration events. Cistus ladanifer subsp. sulcatus is an endemic plant of Portugal, known to occur only in the top of its south-western coast’s prominent cliffs. In spite of being included in th...
Future habitat suitability for species under climate change: lessons learned fr...
Gerassis, Saki; Albuquerque, M.T.D; Roque, Natália; Ribeiro, Sílvia; Taboada, Javier; Ribeiro, M.M.A.Climate change is already a reality, and habitat loss is affecting relentlessly tree species distributions. The strawberry tree (Arbutus unedo L., Ericaceae) is a Mediterranean evergreen tree used in this article as a case study to evince its expected threatening situation in the upcoming age. This research work seeks to identify the bioclimatic and physiographic variables that have the most impact on the straw...
Stevia rebaudiana germplasm characterization using microsatellite markers and s...
Ribeiro, M.M.A.; Diamantino, Tatiana; Domingues, Joana Lopes; Montanari, Ílio; Alves, Marcos Nopper; Gonçalves, José CarlosStevia rebaudiana Bertoni, Asteraceae, is an herbaceous perennial plant native to Paraguay. This species is considered since ancient times a medicinal plant with important bioactive compounds and pharmacologic and food properties, namely diterpenes glycosides. The high natural sweetener potential stevioside and rebaudioside A produced by S. rebaudiana plants are suitable sucrose substitutes, and their obtention...