Colour polymorphism and genetic relationships among twelve subspecies of Callosciurus finlaysonii in Thailand

Boonkhaw, Phadet; Prayoon, Umphornpimon; Kanchanasaka, Budsabong; Hayashi, Fumio; Tamura, Noriko

doi:10.1016/j.mambio.2017.02.001

Cited by 14 publications

(12 citation statements)

References 31 publications

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“…and the current study provides us a phylogenetic relationship between different varieties based on color polymorphism. The study is supported by the findings of Boonkhaw et al, (2017) when he established a relationship in 16 polymorphic pelage color varieties of Finlayson's squirrel by using the cyt b DNA. The genetic diversity of govt.…”

Section: Phylogenetic Analysissupporting

confidence: 61%

Phylogenetic analysis based studies on genetic variation of Cytochrome b gene of Indian peafowl (Pavo cristatus) in Pakistan

Ng’ambi

Ramuthaga

Brown

2017

IJAR

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This study was designed to analyze genetic variation between Indian peafowl available at different locations by targeting the Cytochrome b gene. A total of ten birds (n=10) were selected randomly for sample collection. Five birds were selected from Government sector and five from private breeding farms. DNA was extracted, purified and measured by using Nano drop. Extracted DNA was amplified using universal primers targeting Cytochrome b gene on polymerase chain reaction (PCR). PCR product was run on a gel for the desired DNA bands. DNA from gel was eluted and sent for sequencing. The sequences were compared with a reference reported sequence of cyt b gene of Indian peafowl with Accession No. L08379.1to find out the genetic diversity. Indian peafowl of government sector showed more similarity 95% rather than bird of private sector with 90% homology with reference Accession No. More genetic variation, which is the guarantee of resistance to disease and environmental fitness among the Indian peafowl at private sector, might be due to random reproductive behavior.

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Section: Phylogenetic Analysissupporting

confidence: 61%

Phylogenetic analysis based studies on genetic variation of Cytochrome b gene of Indian peafowl (Pavo cristatus) in Pakistan

Ng’ambi

Ramuthaga

Brown

2017

IJAR

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“…Therefore, pooled climate and land-use change scenarios, by altering According to our analysis, the Finlayson's squirrel has the lowest invasion potential. This is a tropical species showing the smallest native range among invasive squirrels (i.e., about 12.5 degrees in latitude: Thorington et al, 2012;Boonkhaw, Prayoon, Kanchanasaka, Hayashi, & Tamura, 2017). Its small native niche may account for its limited invasiveness.…”

Section: Discussionmentioning

confidence: 99%

Integrating climate and land‐use change scenarios in modelling the future spread of invasive squirrels in Italy

Febbraro

Menchetti

Russo

et al. 2019

Diversity and Distributions

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Aim The establishment and spread of invasive alien species may be influenced by several mutually interacting factors, whose understanding is paramount to develop effective biosecurity policies. However, studies focused on modelling spatially explicit patterns of future invasion risk have so far focused on species response to climate change impacts, while land‐use change has been neglected. We investigated how the interplay between climate and land‐use change could affect the future potential distribution and dispersal corridors of four alien squirrels introduced to Europe (Sciurus carolinensis, Callosciurus finlaysonii, Callosciurus erythraeus and Eutamias sibiricus). Location and Methods Our study was conducted in Italy. We used Species Distribution Models and circuit theory methods to test whether future scenarios based only on climate change predict a different effect on range and connectivity of alien squirrel populations, compared to scenarios that include both climate and land‐use changes. Results Scenarios based only on climate change predicted a range increase and a high geographic stability (>50%) for most species, with different, yet limited, effects on connectivity corridors. Conversely, scenarios based on both climate and land‐use change showed a loss in range extent and a low geographic stability (<50%) of both range and dispersal corridors for most species. Main conclusions Scenarios considering both climate and land‐use change provide predictions on invasion risk that overturn those including only climate change. The effect of global warming alone would lead to a considerable range expansion of all species. Conversely, when land‐use change is added, a potential loss in suitable habitat and dispersal corridors is predicted for alien squirrels, hence limiting their range expansion. We recommend using multiple drivers in models to obtain reliable predictions for implementing biosecurity policies related to invasive alien species.

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“…Their classification has been mostly based on morphological features, such as pelage color, pattern and baculum's shape and size [47,48]. However, for example, Boonkhaw et al [85] showed how the pelage colors of Finlayson's squirrels in Thailand do not consistently correspond to their genetic groups, suggesting that the genes associated with color may have variations and polymorphisms within subspecies. Balakirev and Rozhnov [56] found a similar result in their study: in Eastern Indochina, the morphological variability of the squirrels within the C. erythraeus/finlaysonii complex does not correspond to the phylogeographic pattern.…”

Section: Origin and The Challenge Of Species Identificationmentioning

confidence: 99%

“…Balakirev and Rozhnov [56] found a similar result in their study: in Eastern Indochina, the morphological variability of the squirrels within the C. erythraeus/finlaysonii complex does not correspond to the phylogeographic pattern. Therefore, an integrative approach to taxonomy, where molecular markers and morphological features are complementary, could help in better identifying the Callosciurus species [55,56,85].…”

Section: Origin and The Challenge Of Species Identificationmentioning

confidence: 99%

Exotic Pet Trade as a Cause of Biological Invasions: The Case of Tree Squirrels of the Genus Callosciurus

Mazzamuto

Wauters

Koprowski

2021

Biology

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The trade of non-native pets, especially of non-domesticated and exotic animals, and their subsequent release and establishment of populations is one of the major pathways of introduction for invasive alien reptiles, amphibia, birds and mammals. Here, we use a group of arboreal mammals, tree squirrels of the genus Callosciurus, as a well-documented case study, reviewing the pathways of introduction, the current areas of non-native distribution, the rate of establishment success and the challenge and legal importance of species identification. We further illustrate the importance of early detection and effective monitoring methods and plans. Next, we document how they interfere with native species, their risk of acting as vectors for emerging infectious diseases and their potential role in maintaining parasitic infections that can affect human health. We conclude by reviewing the current management, or the lack of it, and highlight the diverse biological, social, political and economic reasons that make control/eradication of these charismatic species difficult or even impractical in most countries. However, reviewing the only two successful eradications of the IAS, we highlight the need to acknowledge the public opinion and the importance of communication, transparency and the engagement of a diversity of stakeholders to create a consensus about the actions to undertake.

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Colour polymorphism and genetic relationships among twelve subspecies of Callosciurus finlaysonii in Thailand

Cited by 14 publications

References 31 publications

Phylogenetic analysis based studies on genetic variation of Cytochrome b gene of Indian peafowl (Pavo cristatus) in Pakistan

Phylogenetic analysis based studies on genetic variation of Cytochrome b gene of Indian peafowl (Pavo cristatus) in Pakistan

Integrating climate and land‐use change scenarios in modelling the future spread of invasive squirrels in Italy

Exotic Pet Trade as a Cause of Biological Invasions: The Case of Tree Squirrels of the Genus Callosciurus

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