Isolation via 454 sequencing, and characterisation of microsatellites for Drymodes brunneopygia, southern scrub-robin (Aves: Petroicidae): a species at risk due to substantial habitat loss and climate change

2011 ◽  
Vol 4 (2) ◽  
pp. 331-333
Author(s):  
Jolene A. Scoble ◽  
Andrew J. Lowe ◽  
Michael G. Gardner
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Habitat Loss ◽  
454 Sequencing ◽  
Species At Risk

scholarly journals Predicting warming-induced hypoxic stress for fish in a fragmented river channel using ecosystem metabolism models

2021 ◽  
Author(s):  
Jacob P. Ziegler ◽  
James W. Roy ◽  
Matthew J. Bogard ◽  
D. Andrew R. Drake
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Water Temperature ◽  
Fish Species ◽  
River Channel ◽  
Ecosystem Metabolism ◽  
Hypoxic Stress ◽  
Aquatic Species ◽  
Species At Risk ◽  
Temperature And Precipitation

Aquatic biota often face multiple anthropogenic threats such as river fragmentation and climate change that can contribute to high rates of aquatic species imperilment world-wide. Temperature-induced hypoxia is one under-explored mechanism that can threaten aquatic species in fragmented rivers with reduced flows. We applied ecosystem metabolism models to define the effect of water temperature on net ecosystem production (NEP) of oxygen at 12 sites of a fragmented river channel that supports three fish species at risk and experiences hypoxia. We found that water temperature and precipitation events at 75% of our sites were significantly and negatively correlated to NEP estimates and explained 28% of the variation in NEP within sites. Temperature-induced reductions in NEP at these sites likely contributed to hypoxic conditions threatening the three species at risk as NEP explained 41% of the variation in dissolved oxygen near all sites. Our results have applications for understanding drivers of hypoxic stress in fragmented watercourses, integrating water temperature-NEP effects with oxygen demands of sensitive fish species, and modeling future effects of climate change on aquatic species.

Increasing importance of climate change and other threats to at-risk species in Canada

2020 ◽  
Vol 28 (4) ◽  
pp. 449-456
Author(s):  
Catherine Woo-Durand ◽  
Jean-Michel Matte ◽  
Grace Cuddihy ◽  
Chloe L. McGourdji ◽  
Oscar Venter ◽  
...  
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Introduced Species ◽  
Habitat Loss ◽  
Native Species ◽  
The United States ◽  
Arctic Species ◽  
Over Exploitation ◽  
Paired Analysis ◽  
Over Time

In a previous analysis, six major threats to at-risk species in Canada were quantified: habitat loss, introduced species, over-exploitation, pollution, native species interactions, and natural causes (O. Venter et al. 2006. Bioscience, 56(11): 903–910). Because of rapid environmental change in Canada and an enhanced understanding of the drivers of species endangerment, we updated the 2005 analysis and tested for changes in threats up until the end of 2018. We also expanded the scope to acknowledge climate change as a seventh major threat to species, given its increasing importance for reshaping biological communities. Using information on the COSEWIC (Committee on the Status of Endangered Wildlife in Canada) website, we scored the threats for each of 814 species. Habitat loss remained the most important anthropogenic threat to Canada’s at-risk species, affecting 82% of species, followed by over-exploitation (47%), introduced species (46%), and pollution (35%). Climate change was the least important threat, affecting only 13% of species. However, report writers used less certain language when talking about climate change compared with other threats, so when we included cases where climate change was listed as a probable or future cause, climate change was the fourth most important anthropogenic threat, affecting some 38% of species. The prevalence of threat categories was broadly similar to those for the United States and IUCN listed species. The taxa most affected by climate change included lichens (77%), birds (63%), marine mammals (60%), and Arctic species of all taxa (79%), whereas vascular plants (23%), marine fishes (24%), arthropods (27%), and non-Arctic species (35%) were least affected. A paired analysis of the 188 species with two or more reports indicated that any mention of climate change as a threat increased from 12% to 50% in 10 years. Other anthropogenic threats that have increased significantly over time in the paired analysis included introduced species, over-exploitation, and pollution. Our analysis suggests that threats are changing rapidly over time, emphasizing the need to monitor future trends of all threats, including climate change.

scholarly journals High-latitude EU Habitats Directive species at risk due to climate change and land use

2021 ◽  
Vol 28 ◽  
pp. e01664
Author(s):  
Risto K. Heikkinen ◽  
Linda Kartano ◽  
Niko Leikola ◽  
Juha Aalto ◽  
Kaisu Aapala ◽  
...  
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Land Use ◽  
High Latitude ◽  
Habitats Directive ◽  
Species At Risk ◽  
Eu Habitats Directive

scholarly journals The Importance of Assessing Climate Change Vulnerability to Address Species Conservation

2014 ◽  
Vol 5 (2) ◽  
pp. 450-462 ◽  
Author(s):  
Karen E. Bagne ◽  
Megan M. Friggens ◽  
Sharon J. Coe ◽  
Deborah M. Finch
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Extinction Risk ◽  
Species Conservation ◽  
Biodiversity Loss ◽  
Small Subset ◽  
Species At Risk ◽  
Terrestrial Vertebrates ◽  
Climate Change Vulnerability ◽  
Risk Of Extinction

Abstract Species conservation often prioritizes attention on a small subset of “special status” species at high risk of extinction, but actions based on current lists of special status species may not effectively moderate biodiversity loss if climate change alters threats. Assessments of climate change vulnerability may provide a method to enhance identification of species at risk of extinction. We compared climate change vulnerability and lists of special status species to examine the adequacy of current lists to represent species at risk of extinction in the coming decades. The comparison was made for terrestrial vertebrates in a regionally important management area of the southwestern United States. Many species not listed as special status were vulnerable to increased extinction risk with climate change. Overall, 74% of vulnerable species were not included in lists of special status and omissions were greatest for birds and reptiles. Most special status species were identified as additionally vulnerable to climate change impacts and there was little evidence to indicate the outlook for these species might improve with climate change, which suggests that existing conservation efforts will need to be intensified. Current special status lists encompassed climate change vulnerability best if climate change was expected to exacerbate current threats, such as the loss of wetlands, but often overlooked climate-driven threats, such as exceeding physiological thresholds.

Sign in / Sign up

Export Citation Format

Share Document