Little is known about M. talazaci communication. Other members of the genus are reported to make several vocalizations during agonstic encounters, and it is likely that M. talazaci is similar.
Although not reported for this species, it is likely that M. talazaci uses other forms of communication. It is likely that scent cues are important, especially in individual identification and reproduction. Tactile communication is also probably important between mates, as well as between mothers and their offspring. The role of visual signals in these animals has not been reported.
Another member of the same genus, Microgale dobsoni, is reported to use echolocation to help navigate its environment. It is not known whether M. talazaci uses similar echolocation.
Communication Channels: tactile ; acoustic ; chemical
Perception Channels: visual ; tactile ; acoustic ; chemical
Although M. talazaci is not listed by any major conservation organizations as threatened or endangered, it does inhabit forests which are under pressure from expanding human populations. Other members of the genus Microgale are listed as conservation concerns.
US Federal List: no special status
CITES: no special status
IUCN Red List of Threatened Species: least concern
There are no known negative economic impacts which these tenrecs have upon human populations.
Long-tailed tenrecs eat insects and mix soil. These two behaviors may positively affect humans who live near these animals.
Positive Impacts: controls pest population
Little is know about the role of M. talazaci in its ecosystem. However, it is reasonable to assume that as predators, these tenrecs have some impact on populations of insects and other invertebrates. As a prey species, M. talazaci influences predator populations.
M. talazaci feeds primarily on insects and sometimes frogs. Members of the genus Microgale apparently use sounds and scents to locate their prey.
Animal Foods: amphibians; insects
Primary Diet: carnivore (Insectivore )
Long-tailed tenrecs, Microgale talazaci, can be found in northern and eastern Madagascar.
Biogeographic Regions: ethiopian (Native )
Other Geographic Terms: island endemic
Long-tailed tenrecs adjust to a variety of environments. They usually reside in humid forests where there is dense vegetation near the surface. Microgale talazaci is a surface forager and climber. The species can be found from low elevation forests (800 m) to montane forests (2300 m).
Range elevation: 800 to 2300 m.
Habitat Regions: tropical ; terrestrial
Terrestrial Biomes: forest
From a captivity study, the maximum longevity is 5 years and 10 months.
Range lifespan
Status: captivity: 5.8 (high) years.
Average lifespan
Status: wild: 5.8 years.
Average lifespan
Status: captivity: 5.8 years.
Microgale talazaci weighs between 31 and 47 g. It measures from 40 to 130 mm in length, and its tail adds an additional 43 to 160 mm to the total length. The tail can be as long as 1.5 times the length of the head and body. There is no obvious sexual dimorphism. Unlike other members of the genus (e.g. Microgale dobsoni), which can gain extensive amounts of fat during winter, M. talazaci does not appear to accumulate fat or become less active during winter.
The fur is short, dense, and soft. The dorsal side is dark brown, sometimes black, and the ventral side is usually gray. The long tail is prehensile. The forelimbs have five digits, but are not adapted for digging. These tenrecs have large ears.
Range mass: 31 to 47 g.
Range length: 40 to 130 mm.
Other Physical Features: endothermic ; bilateral symmetry
Average basal metabolic rate: 0.243 W.
Because M. talazaci is small and lacks spines in its fur to deter predators, this species is potential prey for any larger animals, especially snakes and myriapods. Specific details on predation upon these tenrecs are lacking.
Known Predators:
Microgale talazaci is primarily solitary, but a male and female will sometimes form a stable relationship which lasts throughout the year. Based upon this stability, it is likely that the species is monogamous, although specific reports of this are lacking. At the beginning of the breeding season, there are some signs of aggression towards members of the same sex, which may indicate that there is some competition for or defense of mates.
Mating System: monogamous
Breeding interval: Microgale talazaci is capable of breeding every two months.
Breeding season: Breeding typically occurs during the austral spring/summer.
Range number of offspring: 1 to 3.
Range gestation period: 58 to 63 days.
Range weaning age: 28 to 30 days.
Average age at sexual or reproductive maturity (female): 21 months.
Average age at sexual or reproductive maturity (male): 21 months.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; fertilization ; viviparous
Average birth mass: 3.6 g.
Average number of offspring: 2.
Average age at sexual or reproductive maturity (male)
Sex: male: 639 days.
Average age at sexual or reproductive maturity (female)
Sex: female: 639 days.
Little is known about parental investment in this species. However, it is known that the young are small and probably altricial at birth, weighing only about 3.6 g. As in other mammals, it is likely the female who provides the bulk of parental care to offspring, nursing, cleaning, and protecting them as they grow. Young are weaned at about 28 to 30 days of age, and no data are available on the relationship between mother and offspring after this time. The role of the father in parental care is not known.
Parental Investment: altricial ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female)
Talazac's shrew tenrec (Nesogale talazaci) is a species of mammal in the family Tenrecidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist forests.[2] On the basis of molecular data indicating that it and Dobson's shrew tenrec form a sister group to the rest of Microgale, these two species were transferred from Microgale to Nesogale in 2016.[3]
Talazac's shrew tenrec (Nesogale talazaci) is a species of mammal in the family Tenrecidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist forests. On the basis of molecular data indicating that it and Dobson's shrew tenrec form a sister group to the rest of Microgale, these two species were transferred from Microgale to Nesogale in 2016.
