Mixed responses of farmland birds to the Conservation Reserve Enhancement Program in Pennsylvania

2013 ◽  
Vol 77 (3) ◽  
pp. 616-625 ◽  
Author(s):  
Sarah E. Pabian ◽  
Andrew M. Wilson ◽  
Margaret C. Brittingham
Keyword(s):  
Farmland Birds ◽  
Mixed Responses ◽  
Conservation Reserve Enhancement Program

scholarly journals Developing indicators for European birds

2005 ◽  
Vol 360 (1454) ◽  
pp. 269-288 ◽  
Author(s):  
Richard D Gregory ◽  
Arco van Strien ◽  
Petr Vorisek ◽  
Adriaan W Gmelig Meyling ◽  
David G Noble ◽  
...  
Keyword(s):  
National Level ◽  
Bird Species ◽  
Population Data ◽  
Biodiversity Loss ◽  
Farmland Birds ◽  
Conservation Action ◽  
Breeding Bird ◽  
Field Methods ◽  
Biodiversity Indicators ◽  
Farmland Bird

The global pledge to deliver ‘a significant reduction in the current rate of biodiversity loss by 2010’ is echoed in a number of regional and national level targets. There is broad consensus, however, that in the absence of conservation action, biodiversity will continue to be lost at a rate unprecedented in the recent era. Remarkably, we lack a basic system to measure progress towards these targets and, in particular, we lack standard measures of biodiversity and procedures to construct and assess summary statistics. Here, we develop a simple classification of biodiversity indicators to assist their development and clarify purpose. We use European birds, as example taxa, to show how robust indicators can be constructed and how they can be interpreted. We have developed statistical methods to calculate supranational, multi-species indices using population data from national annual breeding bird surveys in Europe. Skilled volunteers using standardized field methods undertake data collection where methods and survey designs differ slightly across countries. Survey plots tend to be widely distributed at a national level, covering many bird species and habitats with reasonable representation. National species' indices are calculated using log-linear regression, which allows for plot turnover. Supranational species' indices are constructed by combining the national species' indices weighted by national population sizes of each species. Supranational, multi-species indicators are calculated by averaging the resulting indices. We show that common farmland birds in Europe have declined steeply over the last two decades, whereas woodland birds have not. Evidence elsewhere shows that the main driver of farmland bird declines is increased agricultural intensification. We argue that the farmland bird indicator is a useful surrogate for trends in other elements of biodiversity in this habitat.

scholarly journals Intensive supplementary feeding improves the performance of wild bird seed plots in provisioning farmland birds throughout the winter: a case study in lowland England

Bird Study ◽  
2021 ◽  
pp. 1-11
Author(s):  
Richard K. Broughton ◽  
Michael G.W. Kettlewell ◽  
Marta Maziarz ◽  
Stephen H. Vickers ◽  
Alan Larkman ◽  
...  
Keyword(s):  
Wild Bird ◽  
Supplementary Feeding ◽  
Farmland Birds

Habitat-density associations are not geographically transferable in Swiss farmland birds

Ecography ◽  
2011 ◽  
Vol 34 (4) ◽  
pp. 693-704 ◽  
Author(s):  
Michael Schaub ◽  
Marc Kéry ◽  
Simon Birrer ◽  
Markus Rudin ◽  
Lukas Jenni
Keyword(s):  
Farmland Birds

scholarly journals Conservation of Farmland Birds Faces Different Challenges in Western and Central-Eastern Europe

2011 ◽  
Vol 46 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Piotr Tryjanowski ◽  
Tibor Hartel ◽  
András Báldi ◽  
Paweł Szymański ◽  
Marcin Tobolka ◽  
...  
Keyword(s):  
Eastern Europe ◽  
Farmland Birds ◽  
Central Eastern Europe ◽  
Central Eastern
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