A comparison of scat counts and camera-trapping as means of assessing Iberian lynx abundance

Garrote, Germán; Ayala, Ramón Pérez de; Tellería, José Luis

doi:10.1007/s10344-014-0855-7

Cited by 14 publications

(13 citation statements)

References 25 publications

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“…To avoid this problem, we used camera trapping as a supplementary method, since they took photographs when something moved in front them. As in other research papers [58,60], we found similar results using supplementary methods: dung heap count and camera traps.…”

Section: Discussionsupporting

confidence: 89%

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How Roads Affect the Spatial Use of the Guanaco in a South American Protected Area: Human Connectivity vs Animal Welfare

2019

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Roads can affect animals as well as their habits at different levels. Avoidance behavior is a common response of animals to this type of perturbation, preventing access to areas rich in resources. The effects of roads on ungulates have not been studied in South America extensively, especially in arid environments. We have studied the space use by ungulates in relation to roads, using a dung heap count and camera traps. The aim was to evaluate whether paved road and unpaved road may have an effect on the spatial use of a low density population of guanacos (Lama guanicoe) in Ischigualasto Provincial Park, Argentina. We observed an increase in dung heap abundance in unpaved road as respect to paved road, this difference was larger for both. Besides, we recorded less individuals in paved road zones than in unpaved road zones. This showed that roads, especially paved roads, negatively affect the space used by guanacos. Our results are relevant to the management and conservation of animal populations in protected areas since spatial segregation due to the presence of roads may lead to the isolation of individuals. It is important to pay attention and further assess the effects that roads can have in the native fauna.

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Section: Discussionsupporting

confidence: 89%

“…Space use by ungulates [3,57,58] and other species [59,60] was assessed using the dung heap count and camera trapping registration methods. The first method is not as expensive as the second, and it provides accurate abundance index of ungulate populations [57].…”

Section: Discussionmentioning

confidence: 99%

How Roads Affect the Spatial Use of the Guanaco in a South American Protected Area: Human Connectivity vs Animal Welfare

2019

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“…The soil eDNA detected the same small mammals as fecal eDNA, however, did not detect some of the larger mammals that occur at low occupancy in JRBP, including raccoon and muskrat. Also notable, the positive correlation between scats and camera-trap images suggests that scat collection may also be used as an indicator of relative abundance for these species, similar to previous studies on Iberian lynx (Garrote et al, 2014) and jaguar abundance (Sollmann et al, 2013).…”

Section: Capturing Biodiversity With Menasupporting

confidence: 82%

Molecular Ecological Network Analyses: An Effective Conservation Tool for the Assessment of Biodiversity, Trophic Interactions, and Community Structure

et al. 2020

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“…Searching efforts were focused on trails, tracks and paths within each square (Sarmento et al 2009), while lynx behaviour in depositing faeces at the crossroads of trails and paths facilitates this type of search (Robinson and Delibes 1988). This methodology and the sampling effort have proven to be effective in detecting a stable presence of the lynx in other areas, even at low densities (see Guzmán et al 2004;Garrote et al 2014). All scats that were potentially attributable to Iberian lynx were collected for subsequent genetic analysis (see Palomares et al 2002).…”

Section: Scat Surveymentioning

confidence: 98%

Assessing unverified observation data used for estimating Iberian lynx distribution

Garrote

Ayala²

2015

Eur J Wildl Res

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Anecdotal occurrence data are often used to assess the current and historical ranges of elusive species. However, the use of such data can lead to misidentifications that may result in the overestimation of the species' range and thus have potentially negative consequences for species conservation and management. Despite being a widely criticized practice, anecdotal sighting data have been used to establish the range of the Iberian lynx. We assessed the accuracy of anecdotal sighting data by drawing comparisons with non-invasive standard sampling methods that depend on verifiable physical evidence of the presence of the Iberian lynx to establish its range. The study was carried out in the central and northern part of the Iberian lynx populations that were believed to exist in the 1980s. The study area was divided into 10×10 km Universal Transverse Mercator (UTM) squares, in which interviews regarding sightings and scat and camera trapping surveys were conducted. A total of 82 lynx sightings were obtained in 44 different squares, but only one scat was located and no photographs were obtained. Our results show that the use of sighting data overestimates the range of the species when compared to the range obtained using physically verifiable data. Anecdotal data are considered to be notoriously unreliable by most scientists, yet, in the case of the Iberian lynx, this type of data continues to be used. Iberian lynx conservation and management decisions must be taken based solely on verified existing records to avoid wasting the limited resources available for conservation and to prevent inappropriate management decisions from being taken.

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A comparison of scat counts and camera-trapping as means of assessing Iberian lynx abundance

Cited by 14 publications

References 25 publications

How Roads Affect the Spatial Use of the Guanaco in a South American Protected Area: Human Connectivity vs Animal Welfare

How Roads Affect the Spatial Use of the Guanaco in a South American Protected Area: Human Connectivity vs Animal Welfare

Molecular Ecological Network Analyses: An Effective Conservation Tool for the Assessment of Biodiversity, Trophic Interactions, and Community Structure

Assessing unverified observation data used for estimating Iberian lynx distribution

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