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Experimental Evaluation of Koala Scat Persistence and Detectability with Implications for Pellet-Based Fauna Census
المؤلفون المشاركون
Banks, Peter B.
Goethals, Klara
Frère, Céline
Carrick, Frank N.
Cristescu, Romane H.
المصدر
International Journal of Zoology
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-10-22
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Establishing species distribution and population trends are basic requirements in conservation biology, yet acquiring this fundamental information is often difficult.
Indirect survey methods that rely on fecal pellets (scats) can overcome some difficulties but present their own challenges.
In particular, variation in scat detectability and decay rate can introduce biases.
We studied how vegetation communities affect the detectability and decay rate of scats as exemplified by koalas Phascolarctos cinereus: scat detectability was highly and consistently dependent on ground layer complexity (introducing up to 16% non-detection bias); scat decay rates were highly heterogeneous within vegetation communities; exposure of scats to surface water and rain strongly accelerated scat decay rate and finally, invertebrates were found to accelerate scat decay rate markedly, but unpredictably.
This last phenomenon may explain the high variability of scat decay rate within a single vegetation community.
Methods to decrease biases should be evaluated when planning scat surveys, as the most appropriate method(s) will vary depending on species, scale of survey and landscape characteristics.
Detectability and decay biases are both stronger in certain vegetation communities, thus their combined effect is likely to introduce substantial errors in scat surveys and this could result in inappropriate and counterproductive management decisions.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cristescu, Romane H.& Goethals, Klara& Banks, Peter B.& Carrick, Frank N.& Frère, Céline. 2012. Experimental Evaluation of Koala Scat Persistence and Detectability with Implications for Pellet-Based Fauna Census. International Journal of Zoology،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-486695
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cristescu, Romane H.…[et al.]. Experimental Evaluation of Koala Scat Persistence and Detectability with Implications for Pellet-Based Fauna Census. International Journal of Zoology No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-486695
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cristescu, Romane H.& Goethals, Klara& Banks, Peter B.& Carrick, Frank N.& Frère, Céline. Experimental Evaluation of Koala Scat Persistence and Detectability with Implications for Pellet-Based Fauna Census. International Journal of Zoology. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-486695
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-486695
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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