scholarly journals Incorporating habitat suitability into community projections: Ant responses to climate change in the Australian Wet Tropics

2019 ◽  
Author(s):  
Somayeh Nowrouzi ◽  
Alex Bush ◽  
Tom Harwood ◽  
Kyran M. Staunton ◽  
Simon K. A. Robson ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Wet Tropics

scholarly journals Extinction debt from climate change for frogs in the wet tropics

2016 ◽  
Vol 12 (10) ◽  
pp. 20160236 ◽  
Author(s):  
Damien A. Fordham ◽  
Barry W. Brook ◽  
Conrad J. Hoskin ◽  
Robert L. Pressey ◽  
Jeremy VanDerWal ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Climate Change Impacts ◽  
Time Lags ◽  
Extinction Debt ◽  
Demographic Models ◽  
Extinction Rates ◽  
Species Area ◽  
Wet Tropics ◽  
Bioclimatic Envelope

The effect of twenty-first-century climate change on biodiversity is commonly forecast based on modelled shifts in species ranges, linked to habitat suitability. These projections have been coupled with species–area relationships (SAR) to infer extinction rates indirectly as a result of the loss of climatically suitable areas and associated habitat. This approach does not model population dynamics explicitly, and so accepts that extinctions might occur after substantial (but unknown) delays—an extinction debt. Here we explicitly couple bioclimatic envelope models of climate and habitat suitability with generic life-history models for 24 species of frogs found in the Australian Wet Tropics (AWT). We show that (i) as many as four species of frogs face imminent extinction by 2080, due primarily to climate change; (ii) three frogs face delayed extinctions; and (iii) this extinction debt will take at least a century to be realized in full. Furthermore, we find congruence between forecast rates of extinction using SARs, and demographic models with an extinction lag of 120 years. We conclude that SAR approaches can provide useful advice to conservation on climate change impacts, provided there is a good understanding of the time lags over which delayed extinctions are likely to occur.

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.

scholarly journals Predicting Impacts of Climate Change on Northward Range Expansion of Invasive Weeds in South Korea

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1604
Author(s):  
Sun Hee Hong ◽  
Yong Ho Lee ◽  
Gaeun Lee ◽  
Do-Hun Lee ◽  
Pradeep Adhikari
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Habitat Suitability ◽  
Management Strategies ◽  
Southern Region ◽  
Suitable Habitat ◽  
Invasive Weeds ◽  
Northern Regions ◽  
Suitable Habitats ◽  
Control And Management

Predicting the distribution of invasive weeds under climate change is important for the early identification of areas that are susceptible to invasion and for the adoption of the best preventive measures. Here, we predicted the habitat suitability of 16 invasive weeds in response to climate change and land cover changes in South Korea using a maximum entropy modeling approach. Based on the predictions of the model, climate change is likely to increase habitat suitability. Currently, the area of moderately suitable and highly suitable habitats is estimated to be 8877.46 km2, and 990.29 km2, respectively, and these areas are expected to increase up to 496.52% by 2050 and 1439.65% by 2070 under the representative concentration pathways 4.5 scenario across the country. Although habitat suitability was estimated to be highest in the southern regions (<36° latitude), the central and northern regions are also predicted to have substantial increases in suitable habitat areas. Our study revealed that climate change would exacerbate the threat of northward weed invasions by shifting the climatic barriers of invasive weeds from the southern region. Thus, it is essential to initiate control and management strategies in the southern region to prevent further invasions into new areas.

scholarly journals Forecasting shifts in habitat suitability across the distribution range of a temperate small pelagic fish under different scenarios of climate change

2022 ◽  
Vol 804 ◽  
pp. 150167
Author(s):  
André R.A. Lima ◽  
Miguel Baltazar-Soares ◽  
Susana Garrido ◽  
Isabel Riveiro ◽  
Pablo Carrera ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Pelagic Fish ◽  
Distribution Range ◽  
Small Pelagic Fish

Assessing impacts of climate change on habitat suitability of Coregonus ussuriensis and other coldwater fishes in northern China

2018 ◽  
Vol 26 (33) ◽  
pp. 34058-34066
Author(s):  
Baoxiu Xing ◽  
He Chen ◽  
Qingfeng Chen ◽  
Yan Zhang ◽  
Zifang Liu ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Northern China ◽  
Impacts Of Climate Change

Species traits and reduced habitat suitability limit efficacy of climate change refugia in streams

2019 ◽  
Vol 3 (9) ◽  
pp. 1321-1330 ◽  
Author(s):  
Matthew J. Troia ◽  
Anna L. Kaz ◽  
J. Cameron Niemeyer ◽  
Xingli Giam
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Species Traits

scholarly journals Implications of landscape genetics and connectivity of snow leopard in the Nepalese Himalayas for its conservation

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Bikram Shrestha ◽  
Pavel Kindlmann
Keyword(s):  
Climate Change ◽  
Genetic Structure ◽  
Habitat Suitability ◽  
Snow Leopard ◽  
Tree Line ◽  
Large Mammals ◽  
Alpine Zone ◽  
Suitability Maps ◽  
Suitable Habitats ◽  
Snow Leopards

AbstractThe snow leopard is one of the most endangered large mammals. Its population, already low, is declining, most likely due to the consequences of human activity, including a reduction in the size and number of suitable habitats. With climate change, habitat loss may escalate, because of an upward shift in the tree line and concomitant loss of the alpine zone, where the snow leopard lives. Migration between suitable areas, therefore, is important because a decline in abundance in these areas may result in inbreeding, fragmentation of populations, reduction in genetic variation due to habitat fragmentation, loss of connectivity, bottlenecks or genetic drift. Here we use our data collected in Nepal to determine the areas suitable for snow leopards, by using habitat suitability maps, and describe the genetic structure of the snow leopard within and between these areas. We also determine the influence of landscape features on the genetic structure of its populations and reveal corridors connecting suitable areas. We conclude that it is necessary to protect these natural corridors to maintain the possibility of snow leopards’ migration between suitable areas, which will enable gene flow between the diminishing populations and thus maintain a viable metapopulation of snow leopards.

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