Application of detectability in the use of indicator species: A case study with birds

The use of indicator species is popular in ecological monitoring and management. In recent years, new methods to improve the quality and application of indicator data have been proposed and developed. Here we propose the use of detection probability in the selection and application of indicator species. We evaluated environmental and observer factors believed to affect detection of potential species. Observer effects were the most evident factor and may necessitate the greatest consideration in the use of indicator species. Our results call attention to the fact that raw counts are far from accurate and that the use of detection probability can and should be incorporated into sampling protocols, species selection, and the allocation of effort for projects that use indicator species as part of monitoring and management programs.

[1]  M. V. Price,et al.  Single Species as Indicators of Species Richness and Composition in California Coastal Sage Scrub Birds and Small Mammals , 2000 .

[2]  Risto A. Väisänen,et al.  Changes in bird populations as criteria of environmental changes , 1979 .

[3]  Hugh P. Possingham,et al.  Estimating bird species richness: How should repeat surveys be organized in time? , 2002 .

[4]  David R. Anderson,et al.  Model selection and multimodel inference : a practical information-theoretic approach , 2003 .

[5]  R. Hughes,et al.  Development of a Bird Integrity Index: Using Bird Assemblages as Indicators of Riparian Condition , 2002, Environmental management.

[6]  J. Andrew Royle,et al.  Modelling occurrence and abundance of species when detection is imperfect , 2005 .

[7]  Aliza Fleischer,et al.  Cost‐efficiency of biodiversity indicators for Mediterranean ecosystems and the effects of socio‐economic factors , 2010 .

[8]  D. Massimino,et al.  A Multiscale Method for Selecting Indicator Species and Priority Conservation Areas: a Case Study for Broadleaved Forests in Lombardy, Italy , 2006, Conservation biology : the journal of the Society for Conservation Biology.

[9]  I. J. Ball,et al.  Assemblages of breeding birds as indicators of grassland condition , 2002 .

[10]  C. S. Robbins,et al.  Managing and Monitoring Birds Using Point Counts: Standards and Applications , 1995 .

[11]  C. Barbraud,et al.  On the importance of estimating detection probabilities from at‐sea surveys of flying seabirds , 2009 .

[12]  SCOTT A. FIELD,et al.  OPTIMIZING ALLOCATION OF MONITORING EFFORT UNDER ECONOMIC AND OBSERVATIONAL CONSTRAINTS , 2005 .

[13]  R. Noss.  Indicators for Monitoring Biodiversity: A Hierarchical Approach , 1990 .

[14]  Virginia H. Dale,et al.  Challenges in the development and use of ecological indicators , 2001 .

[15]  D. Bradford,et al.  Bird Communities and Habitat as Ecological Indicators of Forest Condition in Regional Monitoring , 2000 .

[16]  Dennis D. Murphy,et al.  Using Indicator Species to Predict Species Richness of Multiple Taxonomic Groups , 2005 .

[17]  David B. Lindenmayer,et al.  Future directions for biodiversity conservation in managed forests: indicator species, impact studies and monitoring programs , 1999 .

[18]  J. Andrew Royle.  N‐Mixture Models for Estimating Population Size from Spatially Replicated Counts , 2004, Biometrics.

[19]  J. Quinn.  Development of a Healthy Farm Index to assess ecological , economic , and social function on organic and sustainable farms in Nebraska ’ s four agroecoregions , 2009 .

[20]  Marc Kery,et al.  Introduction to WinBUGS for Ecologists: Bayesian approach to regression, ANOVA, mixed models and related analyses , 2010 .

[21]  N. Yoccoz.  Occupancy Estimation and Modeling. Inferring patterns and dynamics of species occurrence , 2006 .

[22]  L. Jackson,et al.  BIRD GUILDS AS INDICATORS OF ECOLOGICAL CONDITION IN THE CENTRAL APPALACHIANS , 2000 .

[23]  E. Fleishman,et al.  A Realistic Assessment of the Indicator Potential of Butterflies and Other Charismatic Taxonomic Groups , 2009, Conservation biology : the journal of the Society for Conservation Biology.

[24]  Hugh P. Possingham,et al.  Minimizing the cost of environmental management decisions by optimizing statistical thresholds , 2004 .

[25]  J. W. Thomas,et al.  Ecological Uses of Vertebrate Indicator Species: A Critique , 1988 .

[26]  D. Noble,et al.  The generation and use of bird population indicators in Europe , 2008, Bird Conservation International.