On the efficiency of using song playback during call count surveys of Red-legged partridges (Alectoris rufa)

Jakob, Christiane; Ponce, Françoise; Besnard, Aurélien; Éraud, Cyril

doi:10.1007/s10344-010-0388-7

Cited by 20 publications

(16 citation statements)

References 30 publications

(42 reference statements)

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“…We demonstrated that distance sampling paired with call-response surveys provided an efficient means of monitoring elusive, non-individually identifiable, and wide-ranging mammalian carnivores with more certainty than has been previously available. This approach is also applicable to species as diverse as squirrels (Downey et al 2006, Tamura et al 2013, foxes (Darden et al 2003), raptors (Mosher et al 1990, McLeod andAndersen 1998), marsh birds (Hinojosa-Huerta et al 2002, Rehm andBaldassarre 2007), game birds (Evans et al 2007Jakob et al 2010, and primates (Urbani 2006, Bezerra et al 2010) provided that their behavior in response to call elicitation is either well known or can be quantified to ensure distance sampling assumptions are reasonably met.…”

Section: Discussionmentioning

confidence: 99%

Pairing call‐response surveys and distance sampling for a mammalian carnivore

et al. 2015

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Density estimates accounting for differential animal detectability are difficult to acquire for wide-ranging and elusive species such as mammalian carnivores. Pairing distance sampling with callresponse surveys may provide an efficient means of tracking changes in populations of coyotes (Canis latrans), a species of particular interest in the eastern United States. Blind field trials in rural New York State indicated 119-m linear error for triangulated coyote calls, and a 1.8-km distance threshold for call detectability, which was sufficient to estimate a detection function with precision using distance sampling. We conducted statewide road-based surveys with sampling locations spaced !6 km apart from June to August 2010. Each detected call (be it a single or group) counted as a single object, representing 1 territorial pair, because of uncertainty in the number of vocalizing animals. From 524 survey points and 75 detections, we estimated the probability of detecting a calling coyote to be 0.17 AE 0.02 SE, yielding a detection-corrected index of 0.75 pairs/10 km 2 (95% CI: 0.52-1.1, 18.5% CV) for a minimum of 8,133 pairs across rural New York State. Importantly, we consider this an index rather than true estimate of abundance given the unknown probability of coyote availability for detection during our surveys. Even so, pairing distance sampling with callresponse surveys provided a novel, efficient, and noninvasive means of monitoring populations of wideranging and elusive, albeit reliably vocal, mammalian carnivores. Our approach offers an effective new means of tracking species like coyotes, one that is readily extendable to other species and geographic extents, provided key assumptions of distance sampling are met. Ó 2015 The Wildlife Society.

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Section: Discussionmentioning

confidence: 99%

Pairing call‐response surveys and distance sampling for a mammalian carnivore

et al. 2015

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“…As shown for other species (e.g. Jakob et al 2010) taking detection biases into account should not be neglected for wildfowl surveys because it is likely to improve the results from such studies (e.g. Pagano and Arnold 2009) as well as making management policies more appropriate.…”

Section: Discussionmentioning

confidence: 97%

Breeding mute swan habitat selection when accounting for detectability: a plastic behaviour consistent with rapidly expanding populations

et al. 2011

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International audienceA number of native and exotic animal species show dramatic population increases in terms of both numbers and geographic range. Understanding the habitat selection processes behind such increases is crucial to implement adequate management measures. Mute swan (Cygnus olor) populations have experienced a tremendous demographic and geographic expansion in Western Europe during the twentieth century, colonizing a wide variety of aquatic habitats. We aimed at assessing how swans select nesting sites during the pre-laying and laying periods on medium to large fishponds (from 10 to 50 ha) in Eastern France, while accounting for detectability biases and testing for the effects of fishpond spatial configuration, vegetation resources, human disturbance and habitat management. Our results demonstrate that the mute swan is a non-selective species regarding its nesting habitat among such fishponds, using these independently from the parameters considered although fishpond characteristics varied. Although mute swan is one of the least cryptic Anatidae, owing to its white colour and large size, detection of breeding pairs remained imperfect for each over several sampling occasions. However, because we repeated the sampling sessions, detection of swan pairs by the end of the monitoring period was as high as 0.94. These results are consistent with previous assertions that the mute swan is a species of high ecological plasticity, which may partly explain its recent colonization rates. Given that even swan breeding events were imperfectly detected on each occasion, we highlight Communicated by H. Kierdor

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“…Point count surveys have also been modified by some researchers to include playback of recorded bird songs or calls in an attempt to increase detection rates. Species‐specific surveys of songbirds have taken advantage of response to playback of the target species’ vocalizations with mixed success (Sliwa and Sherry , Kubel and Yahner , Jakob et al ). Where a mixed species assemblage of birds is being surveyed, interspecific attraction to the calls of a single species may be exploited.…”

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confidence: 99%

Variable effect of playback of chickadee mobbing calls on detection probability of boreal forest birds

2015

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Modification of the point count survey method to include playback of songbird mobbing calls in an attempt to increase detection probabilities has met with mixed success. We compared detection probabilities for boreal forest songbirds using traditional point count methods and counts using broadcasts of the mobbing calls of Black-capped Chickadees (Poecile atricapillus) in an attempt to increase detection probability. We conducted 594 point counts during the 2010 breeding season in Newfoundland, Canada. Each point count consisted of an 8-min silent observation period followed by an 8-min broadcast of Black-capped Chickadee mobbing calls. Occupancy model results showed that response to playback broadcast varied across species, with detection probabilities higher for seven of 17 species during the silent portions of point counts and three species more likely to be detected during playback intervals. For all species, the number of visual detections increased during periods of playback and, averaged across species, individuals were >6 times more likely to be seen during the playback period than during the silent period. Differences in detection probability among observers were apparent during both silent and playback periods. We suggest that using playback of chickadee mobbing calls during point count surveys of common boreal forest songbird species may be most beneficial when visual detection is important. However, playback may also be useful for species-specific surveys during periods when birds are less likely to be vocal or for studies of less common species with chronically low detection probabilities. A combined silent and playback approach could also be useful, although observer and species differences should be accounted for if comparing data across species or studies. RESUMEN. Efecto variable de las grabaciones de conducta de turbas en Poecile atricapillus, en la probabilidad de detectar aves en un bosque borealModificaciones en los conteos de puntos, para incluir grabaciones de llamadas de turbas, en el intento de incrementar las probabilidades de detección de aves han tenido resultados mixtos. Comparamos la probabilidad de detección para aves en bosques boreales, utilizando conteos de puntos tradicionales y llamadas de turbas del Carbonero Cabecinegro (Poecile atricapillus), en un intento de incrementar la probabilidad de detección de aves. Se condujeron 594 conteos de puntos durante el periodo reproductivo del 2010, en Newfoundland, Canadá. Cada punto consistió de 8 minutos de observación en silencio, seguido de 8 minutos de una grabación de la llamada de turba del Carbonero Cabecinegro. El modelo utilizado mostró que la respuesta a las grabaciones varía entre especies, con una alta probabilidad de detección de siete de 17 especies durante los periodos de silencio y de tres especies adicionales durante la exposición a grabaciones. Para todas las especies, el número de detecciones visuales incrementó durante los periodos de uso de grabaciones y el promedio entre todas estas, resultó con una probabilidad seis...

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On the efficiency of using song playback during call count surveys of Red-legged partridges (Alectoris rufa)

Cited by 20 publications

References 30 publications

Pairing call‐response surveys and distance sampling for a mammalian carnivore

Pairing call‐response surveys and distance sampling for a mammalian carnivore

Breeding mute swan habitat selection when accounting for detectability: a plastic behaviour consistent with rapidly expanding populations

Variable effect of playback of chickadee mobbing calls on detection probability of boreal forest birds

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