scholarly journals Modeling Future Potential Distribution of Buff-Bellied Hummingbird (Amazilia yucatanensis) Under Climate Change: Species vs. Subspecies

2021 ◽  
Vol 25 ◽  
pp. 194008292110308
Author(s):  
Antonio Acini Vásquez-Aguilar ◽  
Juan Francisco Ornelas ◽  
Flor Rodríguez-Gómez ◽  
M. Cristina MacSwiney G.
Keyword(s):  
Climate Change ◽  
Potential Distribution ◽  
Niche Breadth ◽  
Future Climate ◽  
Extreme Weather Events ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Climatic Niche ◽  
Future Projections ◽  
Change Models

Global climate change is associated with changes in precipitation patterns and an increase in extreme weather events, which might shift the geographic distribution of species. Despite the importance of this topic, information is lacking for many species, particularly tropical birds. Here, we developed species distribution models (SDMs) to evaluate future projections of the distribution of the widespread Buff-bellied Hummingbird ( Amazilia yucatanensis) and for each of the recognized subspecies ( A. y. yucatanensis, A. y. cerviniventris, A. y. chalconota), under climate change scenarios. Using SDMs we evaluate current and future projections of their potential distribution for four Representative Concentration Pathway (RCPs) for the years 2050 and 2070. We also calculated the subspecies climatic niche breadth to test the relationship between their area of distribution and climatic niche breadth and their niche overlap. Future climate-change models suggested a small increase in the potential distribution of the species and the subspecies A. y. yucatanensis, but the predicted potential geographic range decreased in A. y. chalconota and remained unaffected in A. y. cerviniventris. The climatic niche of A. y. cerviniventris contained part niche space of A. y. yucatanensis and part of A. y. chalconota, but the climatic niches of A. y. yucatanensis and A. y. chalconota did not overlap. Our study highlights the importance of correctly choosing the taxonomic unit to be analyzed because subspecies will respond in a different manner to future climate change; therefore, conservation actions must consider intrinsic requirements of subspecies and the environmental drivers that shape their distributions.

scholarly journals Current and future suitable habitat areas for Nasuella olivacea (Gray, 1865) in Colombia and Ecuador and analysis of its distribution across different land uses

2020 ◽  
Vol 8 ◽  
Author(s):  
Pablo Medrano-Vizcaíno ◽  
Patricia Gutiérrez-Salazar
Keyword(s):  
Climate Change ◽  
Potential Distribution ◽  
Wildlife Conservation ◽  
Distribution Patterns ◽  
Climatic Conditions ◽  
Future Climate ◽  
Future Climate Change ◽  
Suitable Habitat ◽  
Climate Change Scenarios ◽  
Ecological Niche Models

Nasuella olivacea is an endemic mammal from the Andes of Ecuador and Colombia. Due to its rarity, aspects about its natural history, ecology and distribution patterns are not well known, therefore, research is needed to generate knowledge about this carnivore and a first step is studying suitable habitat areas. We performed Ecological Niche Models and applied future climate change scenarios (2.6 and 8.5 RCP) to determine the potential distribution of this mammal in Colombia and Ecuador, with current and future climate change conditions; furthermore, we analysed its distribution along several land covers. We found that N. olivacea is likely to be found in areas where no records have been reported previously; likewise, climate change conditions would increase suitable distribution areas. Concerning land cover, 73.4% of N. olivacea potential distribution was located outside Protected Areas (PA), 46.1% in Forests and 40.3% in Agricultural Lands. These findings highlight the need to further research understudied species, furthering our understanding about distribution trends and responses to changing climatic conditions, as well as informig future PA designing. These are essential tools for supporting wildlife conservation plans, being applicable for rare species whose biology and ecology remain unknown.

Resilience or Vulnerability of the Rear-Edge Distributions of Pinus halepensis and Pinus pinaster Plantations Versus that of Natural Populations, under Climate-Change Scenarios

2019 ◽  
Vol 66 (2) ◽  
pp. 178-190 ◽  
Author(s):  
E Silvério ◽  
J Duque-Lazo ◽  
R M Navarro-Cerrillo ◽  
F Pereña ◽  
G Palacios-Rodríguez
Keyword(s):  
Climate Change ◽  
Pinus Pinaster ◽  
Potential Distribution ◽  
Pinus Halepensis ◽  
Natural Populations ◽  
Future Climate ◽  
Future Climate Change ◽  
Forest Plantations ◽  
Climate Change Scenarios ◽  
Natural Stands

Abstract It is predicted that changes in climate will lead to episodes of large forest decline and mortality. Therefore, the distributions of forest plantations and natural stands might already be facing such impacts. We selected the most arid zone of south-eastern Europe (eastern Andalusia) to assess how the distributions of Pinus halepensis Miller. and Pinus pinaster Aiton forest plantations and natural stands cope with climate change and to determine whether natural or planted distributions would be more stable under future climate-change scenarios. We used presence-point locations from natural distributions, obtained from the third Spanish National Forest Inventory, to develop ensemble species distribution models. The forecast predicted a slight increase in the potential distribution of both species by 2040, with a subsequent drastic decrease until 2099. Pinus halepensis had larger current and future potential distributions than P. pinaster but a slightly greater decrease with time in the potential distribution than that of P. pinaster. On the other hand, the natural and planted distributions of P. halepensis were more vulnerable to future climate change scenarios than those of P. pinaster. Natural populations will likely be more resilient to climate change than planted populations.

scholarly journals The potential distribution of Chiranthodendron pentadactylon (Malvaceae) through time: Phylogeography revisited and predicted environmental suitability under alternative future climate change scenarios.

2021 ◽  
Author(s):  
Diana Hernandez Langford ◽  
Jaime Escoto Moreno ◽  
Joaquín Sosa Ramírez
Keyword(s):  
Climate Change ◽  
Potential Distribution ◽  
Future Climate ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Last Interglacial ◽  
Modeling Tools ◽  
Southern Mexico ◽  
Environmental Suitability ◽  
The Impact

Aim: Mexican hand tree Chiranthodendron pentadactylon is an evergreen temperate tree species restricted to cloud forests and pine-oak forests of southern Mexico, Guatemala and possibly Honduras. Climate is believed to significantly contribute to the species establishment, viability and distribution. Insights into the impact of climate change on the species potential distribution throughout time were approached by ecological niche modeling tools. Location: Southern Mexico, Guatemala and Honduras. Methods: Past (Last Interglacial 120-140 KA, Last Glacial Maximum 22 KA, Mid-Holocene 6 KA), historical (1910-2009) and future (2021-2040, 2041-2060, 2061-2080 and 2081-2100) potential distributions and corresponding environmental suitability were modelled using the Maximum Entropy algorithm. Current (historical) models were based on the most up to date historical environmental variables and constituted the baseline for past and future projections. Past predictions are revisited in a phylogeographic context. Future predictions were made for four different emissions scenarios. Results: Increase in potential distribution range comes about during cold and humid periods but higher suitability possibly relates to humid conditions. Potential distribution alongside environmental suitability diminishes during warm and dry periods. Future climate change implies warmer periods whence environmental suitability declines following a linear trend. Main conclusions: Future warmer conditions are predicted to linearly reduce environmental suitability throughout time. Biotic and anthropogenic factors further threaten the species distribution. Demographic trends and genetic diversity estimated through a recent phylogeographic study, complement the statement that populations viability is increasingly being threatened by current and future climate change, underscoring the need for the implementation of conservation actions.

scholarly journals Upward Shifts in Ageratina adenophora Global Distributions in Response to Future Climate Change Scenarios

2021 ◽  
Author(s):  
Changjun Gu ◽  
Tu Yanli ◽  
Linshan Liu ◽  
Wei Bo ◽  
Yili Zhang ◽  
...  
Keyword(s):  
Climate Change ◽  
Potential Distribution ◽  
Future Climate ◽  
Future Climate Change ◽  
Suitable Habitat ◽  
Climate Change Scenarios ◽  
Altitudinal Distribution ◽  
Invasive Weed ◽  
Crofton Weed ◽  
Ageratina Adenophora

Aim: Invasive alien species (IAS) threaten ecosystems and humans worldwide, and future climate change may accelerate the expansion of IAS. Predicting the suitable distributions of IAS can prevent their further expansion. Ageratina adenophora is a invasive weed over 30 countries in tropical and subtropical regions. However, the potential suitable distribution of A. adenophora remains unclear along with its response to climate change. This study explored and mapped the current and future potential distributions of Ageratina adenophora. Location: Global Taxa: Asteraceae A. adenophora (Spreng.) R.M.King & H.Rob. Commonly known as Crofton weed. Methods: Based on A. adenophora occurrence data and climate data, we predicted its potential distribution of this weed under current and future (four RCPs in 2050 and 2070) by MaxEnt model. We used ArcGIS 10.4 to explore the distribution characteristics of this weed and the ‘ecospat’ package in R to analyse its altitudinal distribution changes. Results: The area under the curve value (>0.9) indicated excelled model performance. Among environment factors, Mean Temperature of Coldest Quarter contributed most to the model. Globally, the suitable habitat for A.adenophora invasion decreased under climate change scenarios, although regional increase were observed, including in six biodiversity hotspot regions. The potential suitable habitat of A.adenophora under climate change moved toward regions with higher elevation. Main Conclusions: Temperature was the most important variable influencing the distribution of A. Adenophora. Under the background of warming climate, the potential distribution range of A.adenophora will shrink globally but increase regionally. The distribution of A.adenophora will shift toward higher elevation under climate change. Mountain ecosystems are of special concern as they are rich in biodiversity and sensitive to climate change, and increasing human activities provide more opportunities for IAS invasion.

scholarly journals Potential distribution of pine wilt disease under future climate change scenarios

PLoS ONE ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. e0182837 ◽  
Author(s):  
Akiko Hirata ◽  
Katsunori Nakamura ◽  
Katsuhiro Nakao ◽  
Yuji Kominami ◽  
Nobuyuki Tanaka ◽  
...  
Keyword(s):  
Climate Change ◽  
Potential Distribution ◽  
Pine Wilt Disease ◽  
Wilt Disease ◽  
Future Climate ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Pine Wilt

scholarly journals Potential changes in the distribution of Delphinium bolosii and related taxa of the series Fissa from the Iberian Peninsula under future climate change scenarios

2021 ◽  
Vol 43 ◽  
pp. 147-166
Author(s):  
Rubén Ramírez-Rodríguez ◽  
Manuel Melendo-Luque ◽  
Juan Diego Rus-Moreno ◽  
Francisco Amich
Keyword(s):  
Climate Change ◽  
Iberian Peninsula ◽  
Species Distribution ◽  
Potential Distribution ◽  
Species Distribution Modelling ◽  
Future Climate ◽  
Distribution Area ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Climatic Scenarios

A particular threat posed by climate change for biodiversity conservation, one which has scarcely been studied, is the overlap of the potential distribution areas in phylogenetically closely related species. In this study, Species Distribution Modelling (SDM) was used to investigate the potential changes in the distribution of Delphinium bolosii and D. fissum subsp. sordidum under future climatic scenarios. These two closely related and endangered endemic species from the Iberian Peninsula do not have complete reproductive barriers between them. The two models selected different predictors with a similar effect in the biological cycle. Both taxa need low winter temperatures to break seed dormancy and sufficient rainfall to complete the flowering and fruiting stages. The current potential distribution areas of both taxa do not currently overlap. However, the results showed that potential changes may take place in the species’ distribution range under future climate scenarios. The models predict a reduction of the potential distribution area of D. bolosii while, conversely, the potential distribution area of D. fissum subsp. sordidum increased. In both cases, the predicted contraction in range is very high, and loss of habitat suitability in some current localities is worrying. Notwithstanding, the models do not predict overlaps of potential areas under climate change scenarios. Our findings can be used to define areas and populations of high priority for conservation or to take action against the impacts of climate change on these endangered species.

scholarly journals Mapping current and potential future distributions of the oak tree (Quercus aegilops) in the Kurdistan Region, Iraq

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Nabaz R. Khwarahm
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Environmental Variables ◽  
Climate Changes ◽  
Future Climate ◽  
Annual Precipitation ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Kurdistan Region ◽  
Oak Tree

Abstract Background The oak tree (Quercus aegilops) comprises ~ 70% of the oak forests in the Kurdistan Region of Iraq (KRI). Besides its ecological importance as the residence for various endemic and migratory species, Q. aegilops forest also has socio-economic values—for example, as fodder for livestock, building material, medicine, charcoal, and firewood. In the KRI, Q. aegilops has been degrading due to anthropogenic threats (e.g., shifting cultivation, land use/land cover changes, civil war, and inadequate forest management policy) and these threats could increase as climate changes. In the KRI and Iraq as a whole, information on current and potential future geographical distributions of Q. aegilops is minimal or not existent. The objectives of this study were to (i) predict the current and future habitat suitability distributions of the species in relation to environmental variables and future climate change scenarios (Representative Concentration Pathway (RCP) 2.6 2070 and RCP8.5 2070); and (ii) determine the most important environmental variables controlling the distribution of the species in the KRI. The objectives were achieved by using the MaxEnt (maximum entropy) algorithm, available records of Q. aegilops, and environmental variables. Results The model demonstrated that, under the RCP2.6 2070 and RCP8.5 2070 climate change scenarios, the distribution ranges of Q. aegilops would be reduced by 3.6% (1849.7 km2) and 3.16% (1627.1 km2), respectively. By contrast, the species ranges would expand by 1.5% (777.0 km2) and 1.7% (848.0 km2), respectively. The distribution of the species was mainly controlled by annual precipitation. Under future climate change scenarios, the centroid of the distribution would shift toward higher altitudes. Conclusions The results suggest (i) a significant suitable habitat range of the species will be lost in the KRI due to climate change by 2070 and (ii) the preference of the species for cooler areas (high altitude) with high annual precipitation. Conservation actions should focus on the mountainous areas (e.g., by establishment of national parks and protected areas) of the KRI as climate changes. These findings provide useful benchmarking guidance for the future investigation of the ecology of the oak forest, and the categorical current and potential habitat suitability maps can effectively be used to improve biodiversity conservation plans and management actions in the KRI and Iraq as a whole.

Selection of models to describe the temperature-dependent development of Neoleucinodes elegantalis (Lepidoptera: Crambidae) and its application to predict the species voltinism under future climate conditions

2021 ◽  
pp. 1-9
Author(s):  
Hevellyn Talissa dos Santos ◽  
Cesar Augusto Marchioro
Keyword(s):  
Climate Change ◽  
Linear Model ◽  
Future Climate ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Temperature Dependent ◽  
Dependent Development ◽  
Degree Day ◽  
Non Linear ◽  
The Impact

Abstract The small tomato borer, Neoleucinodes elegantalis (Guenée, 1854) is a multivoltine pest of tomato and other cultivated solanaceous plants. The knowledge on how N. elegantalis respond to temperature may help in the development of pest management strategies, and in the understanding of the effects of climate change on its voltinism. In this context, this study aimed to select models to describe the temperature-dependent development rate of N. elegantalis and apply the best models to evaluate the impacts of climate change on pest voltinism. Voltinism was estimated with the best fit non-linear model and the degree-day approach using future climate change scenarios representing intermediary and high greenhouse gas emission rates. Two out of the six models assessed showed a good fit to the observed data and accurately estimated the thermal thresholds of N. elegantalis. The degree-day and the non-linear model estimated more generations in the warmer regions and fewer generations in the colder areas, but differences of up to 41% between models were recorded mainly in the warmer regions. In general, both models predicted an increase in the voltinism of N. elegantalis in most of the study area, and this increase was more pronounced in the scenarios with high emission of greenhouse gases. The mathematical model (74.8%) and the location (9.8%) were the factors that mostly contributed to the observed variation in pest voltinism. Our findings highlight the impact of climate change on the voltinism of N. elegantalis and indicate that an increase in its population growth is expected in most regions of the study area.

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