Author
Kua Rittiboon (kua.r@psu.ac.th) and Phattrawan Tongkumchum (phattrawan.t@psu.ac.th)
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Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2017, vol. 19, issue 3, 1003-1013
Abstract: Abstract This study investigated methods for identifying daily incidence rates for bird species. It focused on relationships between incidence rates, site and season. We used sightings of 23 common resident species routinely reported every month from January 2004 to December 2007 at seven wetland locations in the Thale Noi non-hunting area of southern Thailand. Our findings revealed that the log-linear model gives a quite satisfactory fit, so it appears a suitable type of model for bird abundance. On taking logarithms of the incidence rates though, the zero counts must be replaced by an appropriate constant. Our model suggests that Cattle Egret (Bubulcus ibis) was found at the Thale Noi non-hunting area with the highest incidence rate. In contrast, we found a low mean of model outputs for Lesser Whistling-Duck (Dendrocygna javanica) relative to the mean in the data, and this species was not observed on at least 25 % or 3 days per year. These data had a low number of zeros and a large number of various species. Therefore, we recognize a remark on “what is being counted” that it is important to reasonably explain the species abundance in terms of statistical and ecological approaches.
Keywords: Regression methods; Log-linear model; Resident birds; Thale Noi non-hunting area (search for similar items in EconPapers)
Date: 2017
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Kua Rittiboon (kua.r@psu.ac.th) and Phattrawan Tongkumchum (phattrawan.t@psu.ac.th)
Additional contact information
Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2017, vol. 19, issue 3, 1003-1013
Abstract: Abstract This study investigated methods for identifying daily incidence rates for bird species. It focused on relationships between incidence rates, site and season. We used sightings of 23 common resident species routinely reported every month from January 2004 to December 2007 at seven wetland locations in the Thale Noi non-hunting area of southern Thailand. Our findings revealed that the log-linear model gives a quite satisfactory fit, so it appears a suitable type of model for bird abundance. On taking logarithms of the incidence rates though, the zero counts must be replaced by an appropriate constant. Our model suggests that Cattle Egret (Bubulcus ibis) was found at the Thale Noi non-hunting area with the highest incidence rate. In contrast, we found a low mean of model outputs for Lesser Whistling-Duck (Dendrocygna javanica) relative to the mean in the data, and this species was not observed on at least 25 % or 3 days per year. These data had a low number of zeros and a large number of various species. Therefore, we recognize a remark on “what is being counted” that it is important to reasonably explain the species abundance in terms of statistical and ecological approaches.
Keywords: Regression methods; Log-linear model; Resident birds; Thale Noi non-hunting area (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations Track citations by RSS feed
Downloads: (external link)
http://link.springer.com/10.1007/s10668-016-9785-8 Abstract (text/html)
Access to the full text of the articles in this series is restricted.
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text
Persistent link: http://EconPapers.repec.org/RePEc:spr:endesu:v:19:y:2017:i:3:d:10.1007_s10668-016-9785-8
Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/10668
Access Statistics for this article
Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development is currently edited by Luc Hens
More articles in Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development from Springer
Series data maintained by Sonal Shukla (sonal.shukla@springer.com).
For further details log on website :
http://econpapers.repec.org/article/sprendesu/v_3a19_3ay_3a2017_3ai_3a3_3ad_3a10.1007_5fs10668-016-9785-8.htm
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