scholarly journals Potential Impacts of Climate Change on Shrimps Distribution of Commercial Importance in the Gulf of California

2021 ◽  
Vol 11 (12) ◽  
pp. 5506
Author(s):  
Andres Cota-Durán ◽  
David Petatán-Ramírez ◽  
Miguel Ángel Ojeda-Ruiz ◽  
Elvia Aida Marín-Monroy
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Gulf Of California ◽  
Distribution Area ◽  
Commercial Fishing ◽  
Intergovernmental Panel ◽  
Habitat Suitability Models ◽  
Productivity Data ◽  
Historical Distribution ◽  
Change Impact

The Gulf of California is the most productive fishing region in Mexico; its ecosystems contain a vast diversity of species with exploitation potential, some of them potentially vulnerable to climate change. This research was conducted to analyze, through habitat suitability models, the possible alterations in the distribution of the three shrimp species of the most importance for commercial fishing in the region: Litopenaeus stylirostris, Litopenaeus vannamei, and Farfantepenaeus californiensis. Habitat suitability models were built using the MaxEnt software, primary productivity data, temperature, salinity, bathymetry, substratum, coastal type, and geo-referenced occurrence records of the three species. Of the data, 70% was used on training, while the remaining 30% was used for validation. To make estimates of climate change impact on this fishery, projections on distribution of the three species from environmental forecasts generated by the intergovernmental panel on climate change until 2100 were made. The used model, that is in full development and expansion, could be considered as an applicable tool to other problems and showed efficiency rates above 90%. The species will maintain most of their historical distribution, but L. stylirostris and L. vannamei will have a new distribution area within the zones of the Magdalena-Almejas Bay and the Gulf of Ulloa, with an increase of 80% and 148% respectively; all species will have loss areas in the proportion of 16%, 2%, and 11%, respectively, along the southern Gulf of California.

scholarly journals Current and Future Potential Distribution of the Xerophytic Shrub Candelilla (Euphorbia antisyphilitica) under Two Climate Change Scenarios

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 530 ◽  
Author(s):  
Gonzalo Vargas-Piedra ◽  
Ricardo David Valdez-Cepeda ◽  
Armando López-Santos ◽  
Arnoldo Flores-Hernández ◽  
Nathalie S. Hernández-Quiroz ◽  
...  
Keyword(s):  
Climate Change ◽  
North America ◽  
Habitat Suitability ◽  
Potential Distribution ◽  
The United States ◽  
Economic Importance ◽  
Distribution Area ◽  
Climate Projections ◽  
Geophysical Fluid Dynamics Laboratory ◽  
Climate Change Scenarios

Candelilla (Euphorbia antisyphilitica Zucc.) is a shrub species distributed throughout the Chihuahuan Desert in northern Mexico and southern of the United States of America. Candelilla has an economic importance due to natural wax it produces. The economic importance and the intense harvest of the wax from candelilla seems to gradually reduce the natural populations of this species. The essence of this research was to project the potential distribution of candelilla populations under different climate change scenarios in its natural distribution area in North America. We created a spatial database with points of candelilla presence, according to the Global Biodiversity Information Facility (GBIF). A spatial analysis to predict the potential distribution of the species using Maxent software was performed. Thirteen of 19 variables from the WorldClim database were used for two scenarios of representative concentration pathways (RCPs) (4.5 as a conservative and 8.5 as extreme). We used climate projections from three global climate models (GCMs) (Max Planck institute, the Geophysical Fluid Dynamics Laboratory and the Met Office Hadley), each simulating the two scenarios. The final predicted distribution areas were classified in five on-site possible candelilla habitat suitability categories: none (< 19%), low (20–38%), medium (39–57%), high (58–76%) and very high (> 77%). According to the area under the curve (0.970), the models and scenarios used showed an adequate fit to project the current and future distribution of candelilla. The variable that contributed the most in the three GCMs and the two RCPs was the mean temperature of the coldest quarter with an influence of 45.7% (Jackknife test). The candelilla’s distribution area for North America was predicted as approximately 19.1 million hectares under the current conditions for the high habitat suitability; however, the projection for the next fifty years is not promising because the GCMs projected a reduction of more than 6.9 million hectares using either the conservative or extreme scenarios. The results are useful for conservation of the species in the area with vulnerable wild populations, as well as for the selection of new sites suitable for the species growth and cultivation while facing climate change.

scholarly journals Assessing Climate Change Impact on Forest Habitat Suitability and Diversity in the Korean Peninsula

Forests ◽  
2018 ◽  
Vol 9 (5) ◽  
pp. 259 ◽  
Author(s):  
Chul-Hee Lim ◽  
Somin Yoo ◽  
Yuyoung Choi ◽  
Seong Jeon ◽  
Yowhan Son ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Korean Peninsula ◽  
Climate Change Impact ◽  
Forest Habitat ◽  
Change Impact

Science and Climate Change Law—The Role of the IPCC in International Decision-Making

2016 ◽  
Author(s):  
Navraj Singh Ghaleigh
Keyword(s):  
Climate Change ◽  
United Nations Environment Programme ◽  
Intergovernmental Panel ◽  
Current State ◽  
Scientific Papers ◽  
Working Groups ◽  
Scientific Technical ◽  
Change Impact ◽  
Change Climate

This chapter describes the contributions of the scientific community in the development of international climate change law, highlighting in particular the Intergovernmental Panel on Climate Change’s (IPCC’s) assessment and research of the scientific, technical, and socio-economic information relevant for the understanding of the risk of climate change. Since the Panel’s establishment under the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988, it has released several scientific papers that provide a clear scientific view on the current state of knowledge in climate change. The chapter examines the core of the IPCC’s assessment reports, which are divided into three working groups that deal respectively with the ‘Physical Science Basis of Climate Change’, ‘Climate Change Impact, Adaptation and Vulnerability’, and ‘Mitigation of Climate Change’. The IPCC also addresses specific areas, such as renewable energy, disaster management, and climate engineering.

CHILDREN AND YOUTH AS AGENTS OF CLIMATE CHANGE IMPACT IN SOUTH AFRICA

2016 ◽  
Vol 12 (1) ◽  
pp. 75-91
Author(s):  
Mankolo Lethoko
Keyword(s):  
Climate Change ◽  
South Africa ◽  
Content Analysis ◽  
South African ◽  
National Curriculum ◽  
Children And Youth ◽  
Intergovernmental Panel ◽  
Ipcc Report ◽  
Change Impact ◽  
African Youth

When the democratic government came into power in 1994 in South Africa, it faced formidable problems stemming from the structural and historical inequalities and imbalances created by apartheid. Among the challenges included climate change. The release of the 2013 Intergovernmental Panel for Climate Change (IPCC) report indicates that climate change is a reality and its effects globally are getting worse daily. However, South African youth have not been adequately educated about climate change through formal basic schooling so that they can act as change agents.This article argues that the curriculum has to include relevant and the most recent content on climate change so that children can become agents of climate change in their homes and communities. The article uses content analysis of the National Curriculum Statement (2012) to determine the relevance and currency of climate change content in the present basic schooling curriculum. The article also makes recommendations on how the present content can be revised and made relevant to South African schools.

scholarly journals Assessing the Present and Future Habitat Suitability of Caligus rogercresseyi (Boxshall and Bravo, 2000) for Salmon Farming in Southern Chile

2021 ◽  
Vol 7 ◽  
Author(s):  
Manuel Lepe-Lopez ◽  
Joaquín Escobar-Dodero ◽  
Natalia Zimin-Veselkoff ◽  
Claudio Azat ◽  
Fernando O. Mardones
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Spatial Ecology ◽  
Salinity Range ◽  
Climate Change Scenarios ◽  
Southern Chile ◽  
Entire Area ◽  
Future Projections ◽  
Habitat Suitability Models ◽  
Salmon Farming

The sea louse (Caligus rogercresseyi) is the most relevant parasite for the farmed salmon industry in Chile, the second largest producer worldwide. Although spatial patterns of C. rogercresseyi have been addressed from data obtained from established monitoring and surveillance programs, studies on its spatial ecology are limited. A wide geographic distribution of C. rogercresseyi is presumed in Chile; however, how this species could potentially be distributed in space is unknown. Our study presents an analysis of the habitat suitability for C. rogercresseyi in the entire area occupied by marine sites of salmon farms in Chile. Habitat suitability modeling was used to explore the likelihood of species spatial occurrence based on environmental characteristics. Due to the expanding salmon industry in southern Chile, we studied C. rogercresseyi habitat suitability models for present (average of 2005–2010) and two future projections (2050 and 2100) under different climate change scenarios. Models were constructed with the maxent algorithm using a large database of spatial C. rogercresseyi occurrences from the Chilean fisheries health authority and included 23 environmental variables obtained from the Ocean Rasters for Analysis of Climate and Environment (Bio-ORACLE). Habitat suitability models indicated that water temperature, water salinity, and current velocity of waters were the most important characteristics limiting C. rogercresseyi distribution in southern Chile. Habitat suitability models for current climate indicated a heterogeneous pattern with C. rogercresseyi being present in waters with temperature range 12.12–7.08°C (sd = 0.65), salinity range 33.7–25.5 pss (sd = 1.73), and current water velocity range 0.23–0.01 m−1 (sd = 0.02). Predictions for future projections in year 2050 and year 2100 suggest new clumped dispersion of the environmental conditions for C. rogercresseyi establishment. Our results suggest complexity and a wide dispersion of the biogeographic distribution of the C. rogercresseyi habitat suitability with potential implications for control strategies and environmental issues for salmon farming in Chile. Further investigations are required into C. rogercresseyi distribution in southern Chile considering the possible effect of climate change.

scholarly journals Vulnerability to climate change for narrowly ranged species: the case of Ecuadorian endemic Magnolia mercedesiarum

2018 ◽  
Author(s):  
V. Shalisko ◽  
J. A. Vázquez-García ◽  
A. R. Villalobos-Arámbula ◽  
M. A. Muñiz-Castro
Keyword(s):  
Climate Change ◽  
Species Distribution ◽  
Environmental Conditions ◽  
Habitat Suitability ◽  
Distribution Area ◽  
Emission Scenarios ◽  
Niche Modelling ◽  
Species Vulnerability ◽  
Vulnerability To Climate Change ◽  
Current Species

AbstractSpecies vulnerability to climate change has been inferred using species distribution models from an example of the recently discovered Magnolia mercedesiarum (sect. Talauma, Magnoliaceae), a narrowly ranged species endemic to moist tropical forests in the eastern Ecuadorian Andes. The environmental conditions within the current species distribution area has been compared with conditions projected to 2050 and 2070, using data from the HadGEM2-ES model in two CO2 emission scenarios: RCP4.5 and RCP8.5. The ecological niche modelling allowed determination of parameters of climatic environmental conditions that control current species distribution to produce a hypothesis on probable changes in spatial pattern of suitable habitats in future scenarios. Within the current species distribution area of M. mercedesiarum, significant reduction of habitat suitability was projected for both emission scenarios, combined with a lack of nearby areas with adequate environmental conditions. Several disjunct sites of high habitat suitability were found to emerge in the Colombian Andes, but they seem unreachable by this tree species in the scope of a few decades, due to intrinsic dispersal limitations. The reduction of habitat suitability and improbability of distribution area shift to adjacent geographic locations could mean a high species vulnerability to climate change. The species could be at risk of extinction if it does not possess hidden phenotypical plasticity and potential for fast adaptation to climate change.

scholarly journals How will climate change affect the potential distribution of Eurasian tree sparrows Passer montanus in North America?

2011 ◽  
Vol 57 (5) ◽  
pp. 648-654 ◽  
Author(s):  
Jim Graham ◽  
Catherine Jarnevich ◽  
Nick Young ◽  
Greg Newman ◽  
Thomas Stohlgren
Keyword(s):  
Climate Change ◽  
North America ◽  
Habitat Suitability ◽  
Native Species ◽  
Potential Distribution ◽  
Climate Change Scenarios ◽  
Climate Data ◽  
Global Biodiversity Information Facility ◽  
Habitat Suitability Models ◽  
Passer Montanus

Abstract Habitat suitability models have been used to predict the present and future potential distribution of a variety of species. Eurasian tree sparrows Passer montanus, native to Eurasia, have established populations in other parts of the world. In North America, their current distribution is limited to a relatively small region around its original introduction to St. Louis, Missouri. We combined data from the Global Biodiversity Information Facility with current and future climate data to create habitat suitability models using Maxent for this species. Under projected climate change scenarios, our models show that the distribution and range of the Eurasian tree sparrow could increase as far as the Pacific Northwest and Newfoundland. This is potentially important information for prioritizing the management and control of this non-native species.

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