Anthropogenic drivers of avian community turnover from local to regional scales

2021 ◽  
Author(s):  
Grace J. Di Cecco ◽  
Allen H. Hurlbert
2008 ◽  
Vol 32 (3) ◽  
pp. 111-119 ◽  
Author(s):  
Brandon Sladek ◽  
L. Burger ◽  
Ian Munn

Abstract Former agricultural lands converted to pine (Pinus spp.) plantations in the Conservation Reserve Program (CRP) have potential to provide early successional (ES) habitat for many regionally declining pine/grassland and shrub-successional bird species if actively managed with appropriate disturbance regimes. One such regime is use of the selective herbicide Imazapyr (Arsenal Applicators Concentrate) and prescribed burning, which is permitted on CRP lands and cost share payments are available. This study quantified combined effects of Imazapyr and prescribed fire on the breeding season avian community characteristics and pine volume growth in thinned, midrotation afforested loblolly pine (Pinus taedaL.) plantations in Mississippi. Herbicide treatments were applied in fall of 2002 and winter burns were conducted during winter and early spring of 2002–2003. ES bird species richness was significantly greater in the treated plots compared with controls for both 2003 and 2004. Ten individual species exhibited treatment effects. These responses by ES bird species indicate that midrotation CRPplantations can provide needed ES habitat if treated with appropriate disturbance regimes.


2021 ◽  
Author(s):  
Kryštof Chmel ◽  
Solange Mekuate Kamga ◽  
Taku Awa ◽  
Francis Luma Ewome ◽  
Guillermo Uceda‐Gómez ◽  
...  

2021 ◽  
Vol 27 ◽  
pp. e01521
Author(s):  
Tony Yang ◽  
Newton Lupwayi ◽  
St-Arnaud Marc ◽  
Kadambot H.M. Siddique ◽  
Luke D. Bainard

Ecography ◽  
2020 ◽  
Author(s):  
Flavia A. Montaño‐Centellas ◽  
Bette A. Loiselle ◽  
Morgan W. Tingley

Author(s):  
George P Malanson ◽  
Michelle L Talal ◽  
Elizabeth R Pansing ◽  
Scott B Franklin

Current research on vegetation makes a difference in people’s lives. Plant community classification is a backbone of land management, plant communities are changing in response to anthropogenic drivers, and the processes of change have impacts on ecosystem services. In the following progress report, we summarize the status of classification and recent research on vegetation responses to pollution, especially nitrogen deposition, invasive species, climate change, and land use and direct exploitation. Two areas with human feedbacks are underscored: fire ecology and urban ecology. Prominent questions at the current research frontier are highlighted with attention to new perspectives.


2021 ◽  
pp. 1-9
Author(s):  
Patrick F McKenzie ◽  
Gwenllian D Iacona ◽  
Eric R Larson ◽  
Paul R Armsworth

Summary The available tools and approaches to inform conservation decisions commonly assume detailed distribution data. We examine how well-established ecological concepts about patterns in local richness and community turnover can help overcome data limitations when planning future protected areas. To inform our analyses, we surveyed tree species in protected areas in the southern Appalachian Mountains in the eastern USA. We used the survey data to construct predictive models for alpha and beta diversity based on readily observed biophysical variables and combined them to create a heuristic that could predict among-site richness in trees (gamma diversity). The predictive models suggest that site elevation and latitude in this montane system explain much of the variation in alpha and beta diversity in tree species. We tested how well resulting protected areas would represent species if a conservation planner lacking detailed species inventories for candidate sites were to rely only on our alpha, beta and gamma diversity predictions. Our approach selected sites that, when aggregated, covered a large proportion of the overall species pool. The combined gamma diversity models performed even better when we also accounted for the cost of protecting sites. Our results demonstrate that classic community biogeography concepts remain highly relevant to conservation practice today.


Sign in / Sign up

Export Citation Format

Share Document