The Relation of Density Regulation to Habitat Specialization, Evolution of a Species’ Range, and the Dynamics of Biological Invasions

2008 ◽  
Vol 172 (2) ◽  
pp. 233-247 ◽  
Author(s):  
Ido Filin ◽  
Robert D. Holt ◽  
Michael Barfield
Keyword(s):  
Biological Invasions ◽  
Species Range ◽  
Habitat Specialization ◽  
Density Regulation

scholarly journals Bird population trends are linearly affected by climate change along species thermal ranges

2010 ◽  
Vol 277 (1700) ◽  
pp. 3601-3608 ◽  
Author(s):  
Frédéric Jiguet ◽  
Vincent Devictor ◽  
Richard Ottvall ◽  
Chris Van Turnhout ◽  
Henk Van der Jeugd ◽  
...  
Keyword(s):  
Climate Change ◽  
Growth Rates ◽  
Local Population ◽  
Species Range ◽  
Population Trends ◽  
Habitat Specialization ◽  
Management Options ◽  
Lower Growth ◽  
Bird Population ◽  
Thermal Range

Beyond the effects of temperature increase on local population trends and on species distribution shifts, how populations of a given species are affected by climate change along a species range is still unclear. We tested whether and how species responses to climate change are related to the populations locations within the species thermal range. We compared the average 20 year growth rates of 62 terrestrial breeding birds in three European countries along the latitudinal gradient of the species ranges. After controlling for factors already reported to affect bird population trends (habitat specialization, migration distance and body mass), we found that populations breeding close to the species thermal maximum have lower growth rates than those in other parts of the thermal range, while those breeding close to the species thermal minimum have higher growth rates. These results were maintained even after having controlled for the effect of latitude per se . Therefore, the results cannot solely be explained by latitudinal clines linked to the geographical structure in local spring warming. Indeed, we found that populations are not just responding to changes in temperature at the hottest and coolest parts of the species range, but that they show a linear graded response across their European thermal range. We thus provide insights into how populations respond to climate changes. We suggest that projections of future species distributions, and also management options and conservation assessments, cannot be based on the assumption of a uniform response to climate change across a species range or at range edges only.

Progress of biological invasions research in China over the last decade

2013 ◽  
Vol 20 (5) ◽  
pp. 581-611 ◽  
Author(s):  
Ju Ruiting ◽  
Li Hui ◽  
Shih Chengjen ◽  
Li Bo
Keyword(s):  
Biological Invasions

Estimating the exposure of carnivorous plants to rapid climatic change

2018 ◽  
Author(s):  
Matthew C. Fitzpatrick ◽  
Aaron M. Ellison
Keyword(s):  
Climatic Change ◽  
Habitat Suitability ◽  
Species Distributions ◽  
Dispersal Limitation ◽  
Small Population ◽  
Carnivorous Plant ◽  
Carnivorous Plants ◽  
Habitat Specialization ◽  
Population Sizes ◽  
Suitable Habitats

Climatic change likely will exacerbate current threats to carnivorous plants. However, estimating the severity of climatic change is challenged by the unique ecology of carnivorous plants, including habitat specialization, dispersal limitation, small ranges, and small population sizes. We discuss and apply methods for modeling species distributions to overcome these challenges and quantify the vulnerability of carnivorous plants to rapid climatic change. Results suggest that climatic change will reduce habitat suitability for most carnivorous plants. Models also project increases in habitat suitability for many species, but the extent to which these increases may offset habitat losses will depend on whether individuals can disperse to and establish in newly suitable habitats outside of their current distribution. Reducing existing stressors and protecting habitats where numerous carnivorous plant species occur may ameliorate impacts of climatic change on this unique group of plants.

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