Spatio‐Temporal Overlap Between a Native and an Exotic Carnivore in Madagascar

Farris, Zach J.; Gerber, Brian D.; Karpanty, Sarah M.; Ratelolahy, Felix; Andrianjakarivelo, Vonjy; Kelly, Marcella J.

doi:10.1002/9781118943274.ch13

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…The capture histories for each species at the different study sites were re ned to measure species occurrence at the community level. Brie y, photos of species that occurred more than once within a 30 min interval were removed to reduce reporting bias of the same individuals (Farris et al 2012). The species occurrence frequencies and the Shannon diversity indexes (diversity) of the frequencies between species were calculated as follows:…”

Section: Discussionmentioning

confidence: 99%

Comparison of the conservation of medium and large-sized mammals in a national park and military area

Kim,

Hong

2023

Preprint

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National parks (NP) and military areas (MA) preserve natural ecosystems. Although both regions have positive and negative effects on animal communities, studies comparing their impacts on conservation are limited. We monitored mammalian communities using 21 sensor cameras in a MA (6 sites) and NP (15 sites) located on Gyeryongsan Mountain, South Korea from May to November 2021 to compare the conservation of medium and large-sized mammals between the two regions. Forty-one environmental variables, including anthropogenic and geographical factors, were extracted from different spatial ranges (50, 500, and 1000 m). A linear model and non-metric multidimensional scaling were used to identify the factors influencing community diversity. We also analyzed species habitat type preferences using a multispecies occupancy model and compared temporal activities in the two regions. Species diversity was similar between the two sites, with most animals preferring habitats with lower slopes located at greater distances from human trails. Only the Korean hare (Lepus coreanus) preferred the NP habitat of the eight species found. Active periods were similar for the species in both regions, except for differences in some carnivore species. Although not all species were affected by human activity, most preferred the MA over the NP. The carnivores were especially able to flexibly alter their active periods and locations in response to human activities, especially in the NP where human activity was more prevalent. Thus, strategies should be implemented to improve NP conservation success, such as spatial and temporal accessible and inaccessible section separation.

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Section: Discussionmentioning

confidence: 99%

Comparison of the conservation of medium and large-sized mammals in a national park and military area

Kim,

Hong

2023

Preprint

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Forest carnivores living on the edge with invasive predators

Wampole,

Farris,

Razafy

et al. 2023

Animal Conservation

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The proliferation of forest edges and invasive predators have been identified as two primary threats to carnivore populations globally. These threats often occur in unison, facilitated by anthropogenic activities (e.g., fragmentation), and together may pose a greater influence than when they occur separately. Targeted conservation actions for forest carnivores, including Madagascar carnivores, have been hindered by a failure to understand the relative contributions of these factors in driving species declines. To fill this gap, we conducted an extensive camera survey along the edge of intact, continuous protected rainforests in eastern Madagascar to evaluate the extent invasive predators and forest edge separately and in combination affect native carnivore space use. We hypothesized that structural vegetation changes at the forest edge interact with invasive predator trap success and occurrence to reduce native carnivore space use near the forest edge and separately have less influence than when combined. In contrast to findings in fragmented and degraded forests of Madagascar, we found hard forest edge and invasive predators alone do not indiscriminately reduce native carnivore space use in continuous intact forest. Instead, we found free‐roaming dogs and cats interact with their surrounding environment (i.e., forest edge) in unique ways that shape species response differently than within interior forest. At the forest edge, vegetational changes of increasing shrub cover and the occurrence of dogs reduce space use of three of four native carnivores. However, we found greater effects of proximity to villages, especially with high invasive predator activity (free‐roaming cats). Ultimately, native carnivores showed variable sensitivities to pressures we examined, providing support for species‐specific management actions to maximize conservation outcomes. We encourage future studies to consider evaluating the magnitude of separate and combined threats to carnivores. In doing so, conservationists can better identify when threats can be managed in isolation and when they require simultaneous mitigation.

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Spatio‐Temporal Overlap Between a Native and an Exotic Carnivore in Madagascar

Cited by 2 publications

References 32 publications

Comparison of the conservation of medium and large-sized mammals in a national park and military area

Comparison of the conservation of medium and large-sized mammals in a national park and military area

Forest carnivores living on the edge with invasive predators

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