Physical capture and chemical immobilization procedures for a mammal with singular anatomy: the giant anteater (Myrmecophaga tridactyla)

Kluyber, Danilo; Attias, Nina; Alves, Mário Henrique; Alves, Amanda Carolina; Massocato, Gabriel Fávero; Desbiez, Arnaud Léonard Jean

doi:10.1007/s10344-021-01503-4

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…To capture giant anteaters, we searched open areas for individuals foraging, during colder months (May–August) when individuals are known to exhibit greater diurnal activity (Camilo‐Alves & Mourão, 2006). When an adult was spotted, two members of the capture team approached the individual by foot and captured it using two long‐handled dip nets (handle 1.5 m; hoop 0.7‐m diameter) to restrain it (Kluyber et al ., 2021). The veterinarian was then able to safely apply an intramuscular combination anaesthetic injection of butorphanol tartrate (0.1 mg kg −1 ), detomidine hydrochloride (0.1 mg kg −1 ) and midazolam hydrochloride (0.2 mg kg −1 ) into its hind limbs (Kluyber et al ., 2021).…”

Section: Methodsmentioning

confidence: 99%

“…When an adult was spotted, two members of the capture team approached the individual by foot and captured it using two long‐handled dip nets (handle 1.5 m; hoop 0.7‐m diameter) to restrain it (Kluyber et al ., 2021). The veterinarian was then able to safely apply an intramuscular combination anaesthetic injection of butorphanol tartrate (0.1 mg kg −1 ), detomidine hydrochloride (0.1 mg kg −1 ) and midazolam hydrochloride (0.2 mg kg −1 ) into its hind limbs (Kluyber et al ., 2021). After anaesthetic induction, the front claws were first wrapped and completely immobilized using tape.…”

Section: Methodsmentioning

confidence: 99%

“…After anaesthetic induction, the front claws were first wrapped and completely immobilized using tape. Physical exams were then performed to evaluate health conditions and included measuring weight, pregnancy detection (palpation), general appearance, hydration status, mucous membrane colour, respiratory auscultation and presence of scars or wounds (Kluyber et al ., 2021). Only adult individuals considered in good health by the veterinarians were fitted with the GPS harness (TGW‐4570‐4 Iridium GPS) and VHF transmitters (MOD 400; Telonics, Mesa, Arizona).…”

Section: Methodsmentioning

confidence: 99%

“…Only adult individuals considered in good health by the veterinarians were fitted with the GPS harness (TGW‐4570‐4 Iridium GPS) and VHF transmitters (MOD 400; Telonics, Mesa, Arizona). For anaesthetic reversal procedures, all individuals received a combination of three antagonists: naloxone hydrochloride (0.02 mg kg −1 ), yohimbine hydrochloride (0.125 mg kg −1 ) and Flumazenil (0.01 mg kg −1 ) (Kluyber et al ., 2021). After the procedure, the animal was maintained in a wooden ventilated crate until complete recovery and was then released at its capture location.…”

Section: Methodsmentioning

confidence: 99%

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Roads as ecological traps for giant anteaters

Noonan

Ascensão

Yogui

et al. 2021

Animal Conservation

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Wildlife‐vehicle collisions (WVCs) represent a serious source of mortality for many species, threatening local populations’ persistence while also carrying high economic and human safety costs. Animals may adapt their behaviour to road‐associated threats, but roadside resources can also attract individuals to dangerous roadside habitats, ultimately acting as an ecological trap. Yet, the extent to which individuals modify their behaviour and space use to roads is largely unknown for most taxonomic groups. Using fine‐scale movement data from 38 giant anteaters Myrmecophaga tridactyla tracked in the Brazilian Cerrado, we aimed to identify facets of movement behaviour that might exhibit plasticity to roads and traffic volume. Specifically, the analysis of daily and instantaneous movement speeds, home‐range characteristics and crossing rates/times allowed us to test for an effect of road proximity, traffic volume and natural linear features on movement behaviour. We found no effect of road proximity or traffic volume on space use or movement behaviour. While individuals tended to reduce their movement speed when approaching roads and crossed roads ~3 times less than would have been expected by random chance, none of the three highways we monitored were impervious. The majority of tracked anteaters living near roads (<2 km) crossed them, with higher crossing rates for males than females. Habitat near roads may function as an ecological trap where healthy individuals occupy the territories nearby or bisected by roads but eventually are road‐killed given their regular crossings, leaving the territory vacant for subsequent occupation. Crucially, we found no evidence that anteaters actively searched for passage structures to cross the roads. This suggests that crossing structures alone are unlikely to mitigate WVC‐induced mortality in giant anteaters. Our research reinforces the need to implement fencing, leading to existing passages, and minimizing the amount of night‐time driving to reduce the number of WVCs.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Roads as ecological traps for giant anteaters

Noonan

Ascensão

Yogui

et al. 2021

Animal Conservation

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“…From 2013-2019, ticks were collected from monitored free-ranging giant anteaters with radio collar in some municipalities (Aquidauana, Campo Grande, Nova Andradina, and Ribas do Rio Pardo) in the state of MS (Supplemental Table S1) (see Kluyber et al 2021 for capture and handling procedures). These municipalities are located in two distinct biomes (Pantanal and Cerrado).…”

mentioning

confidence: 99%