Fathima Hanna, M
Impact of climate change on the temporal,and spatial distribution of the great pied hornbill (Buceros bicornis) in western ghats - Vellanikkara College of Climate Change and Environmental Science 2023 - xlll, 79p.
B.SC-M.SC
BSc- MSc
In India's Western Ghats biodiversity hotspot, the convergence of challenges including extreme climatic events, habitat loss, and fragmentation poses a significant threat. These factors are particularly concerning for specialized species like Great Pied Hornbills (Buceros bicornis), which have specific requirements, are large-bodied, and depend on expansive territories. This study delves into the ramifications of climate change on the distribution patterns of Great Pied Hornbills along the Western Ghats.
This study encompassed an area of approximately 130,874 square kilometers within the Western Ghats, which is regarded as a potential habitat for the species. The study utilized R software and ArcGIS for data management, while Maxent Software was employed specifically for modeling purposes. However, the study's results highlight that only about 20% of the Western Ghats region exhibits the presence of Great Pied Hornbills. Initially, a dataset of 7,470 presence locations of Great Pied Hornbills was utilized for the study. After undergoing a series of processes including duplicate removal, filtering, and data thinning, this dataset was reduced to 764 occurrence points. It's worth noting that these observations are concentrated in specific localized zones within the Western Ghats. These regions include protected areas like Kalakad Munduthurai Tiger Reserve, Agaisthyamal Forest Reserve, Shrivilliputhur Megamali Forest Reserve, Thenmala Reserve Forest, Periyar Tiger Reserve, Pampadum Shola National Park, Anamali Tiger Reserve, Parambikulam Tiger Reserve, Nelliyampathy Forest Reserve, Chimmini Wildlife Sanctuary, Peechi-Vazhani Wildlife Sanctuary, Sholayar Reserve Forest, Silent Valley National Park, Attappadi Reserve Forest, New Amarambalam Wildlife Sanctuary, Nilgiri Biosphere Reserve, Malabar Wildlife Sanctuary, Aralam Wildlife Sanctuary, Kottiyoor Reserve Forest, Brahmagiri Wildlife Sanctuary, Greater Thalacauvery National Park, Mookambika Wildlife Sanctuary, Anashi National Park, Cotigao Wildlife Sanctuary, Mollem National Park, Bhagwan Mahavir Wildlife Sanctuary, Bhondia Wildlife Sanctuary, Bhimgad Wildlife Sanctuary, Radhanagiri Wildlife Sanctuary, and Koyna Wildlife Sanctuary.
To analyze the potential future suitable habitat scenarios, this study employed three distinct Shared Socio-economic Pathways (SSPs): SSP1-2.6, SSP3-7.0, and SSP5-
8.5. These scenarios provide comprehensive frameworks that consider different trajectories of socio-economic development, population growth, and technological advancements. By using these SSPs, the study aimed to explore a range of possible future conditions, each characterized by varying degrees of greenhouse gas emissions and resultant climate change impacts. SSP1-2.6 envisions a future with ambitious mitigation efforts, leading to a pathway that has the least impact on the climate. In contrast, SSP3-7.0 and SSP5-8.5 represent scenarios with higher emissions and corresponding climate change impacts. Under the projected scenario of SSP5-8.5, it is anticipated that the species will encounter a substantial decline, resulting in the loss of approximately 7.37% of their current suitable climatic niche. This implies that a significant portion of the environmental conditions that currently support the species' existence and thriving will become less hospitable. This alteration in the climatic niche has the potential to bring about notable consequences for various aspects of the species, including its distribution, dynamics of population, and broader interactions within the ecosystem.
However, the study reveals a concerning trend of contraction in future distribution due to the influence of changing climatic conditions. This impact extends beyond mere distribution, encompassing critical aspects such as nesting, breeding, and fruiting dynamics. The magnitude of this anticipated loss underscores the urgency of conservation efforts and the need to implement adaptive strategies that could mitigate the adverse impacts of such changes on the species' viability and ecosystem roles.
English
Climate Change and Environmental Science
Buceros bicornis
Pied hornbill
Western ghats
551.6 / FAT/IM PG
Impact of climate change on the temporal,and spatial distribution of the great pied hornbill (Buceros bicornis) in western ghats - Vellanikkara College of Climate Change and Environmental Science 2023 - xlll, 79p.
B.SC-M.SC
BSc- MSc
In India's Western Ghats biodiversity hotspot, the convergence of challenges including extreme climatic events, habitat loss, and fragmentation poses a significant threat. These factors are particularly concerning for specialized species like Great Pied Hornbills (Buceros bicornis), which have specific requirements, are large-bodied, and depend on expansive territories. This study delves into the ramifications of climate change on the distribution patterns of Great Pied Hornbills along the Western Ghats.
This study encompassed an area of approximately 130,874 square kilometers within the Western Ghats, which is regarded as a potential habitat for the species. The study utilized R software and ArcGIS for data management, while Maxent Software was employed specifically for modeling purposes. However, the study's results highlight that only about 20% of the Western Ghats region exhibits the presence of Great Pied Hornbills. Initially, a dataset of 7,470 presence locations of Great Pied Hornbills was utilized for the study. After undergoing a series of processes including duplicate removal, filtering, and data thinning, this dataset was reduced to 764 occurrence points. It's worth noting that these observations are concentrated in specific localized zones within the Western Ghats. These regions include protected areas like Kalakad Munduthurai Tiger Reserve, Agaisthyamal Forest Reserve, Shrivilliputhur Megamali Forest Reserve, Thenmala Reserve Forest, Periyar Tiger Reserve, Pampadum Shola National Park, Anamali Tiger Reserve, Parambikulam Tiger Reserve, Nelliyampathy Forest Reserve, Chimmini Wildlife Sanctuary, Peechi-Vazhani Wildlife Sanctuary, Sholayar Reserve Forest, Silent Valley National Park, Attappadi Reserve Forest, New Amarambalam Wildlife Sanctuary, Nilgiri Biosphere Reserve, Malabar Wildlife Sanctuary, Aralam Wildlife Sanctuary, Kottiyoor Reserve Forest, Brahmagiri Wildlife Sanctuary, Greater Thalacauvery National Park, Mookambika Wildlife Sanctuary, Anashi National Park, Cotigao Wildlife Sanctuary, Mollem National Park, Bhagwan Mahavir Wildlife Sanctuary, Bhondia Wildlife Sanctuary, Bhimgad Wildlife Sanctuary, Radhanagiri Wildlife Sanctuary, and Koyna Wildlife Sanctuary.
To analyze the potential future suitable habitat scenarios, this study employed three distinct Shared Socio-economic Pathways (SSPs): SSP1-2.6, SSP3-7.0, and SSP5-
8.5. These scenarios provide comprehensive frameworks that consider different trajectories of socio-economic development, population growth, and technological advancements. By using these SSPs, the study aimed to explore a range of possible future conditions, each characterized by varying degrees of greenhouse gas emissions and resultant climate change impacts. SSP1-2.6 envisions a future with ambitious mitigation efforts, leading to a pathway that has the least impact on the climate. In contrast, SSP3-7.0 and SSP5-8.5 represent scenarios with higher emissions and corresponding climate change impacts. Under the projected scenario of SSP5-8.5, it is anticipated that the species will encounter a substantial decline, resulting in the loss of approximately 7.37% of their current suitable climatic niche. This implies that a significant portion of the environmental conditions that currently support the species' existence and thriving will become less hospitable. This alteration in the climatic niche has the potential to bring about notable consequences for various aspects of the species, including its distribution, dynamics of population, and broader interactions within the ecosystem.
However, the study reveals a concerning trend of contraction in future distribution due to the influence of changing climatic conditions. This impact extends beyond mere distribution, encompassing critical aspects such as nesting, breeding, and fruiting dynamics. The magnitude of this anticipated loss underscores the urgency of conservation efforts and the need to implement adaptive strategies that could mitigate the adverse impacts of such changes on the species' viability and ecosystem roles.
English
Climate Change and Environmental Science
Buceros bicornis
Pied hornbill
Western ghats
551.6 / FAT/IM PG