Displaying publications 61 - 80 of 146 in total

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  1. Ticks (Ixodidae) and other ectoparasites in Ulu Muda Forest Reserve, Kedah, Malaysia
    Mariana A, Zuraidawati Z, Ho TM, Kulaimi BM, Saleh I, Shukor MN, et al.
    Southeast Asian J. Trop. Med. Public Health, 2008 May;39(3):496-506.
    PMID: 18564690
    A survey of ticks and other ectoparasites was carried out during a national biodiversity scientific expedition at Ulu Muda Forest Reserve, Kedah, Malaysia from 23-29 March 2003. A total of 161 animals comprising 20 species of birds, 16 species of bats, six species of non-volant small mammals and 12 species of reptiles were examined for ticks and other ectoparasites. From these animals, nine species in five genera of ticks, 10 species in two families of Mesostigmatid mites and five species of chiggers were collected. Three of the ectoparasitic species found, Dermacentor auratus, Ixodes granulatus and Leptotrombidium deliense are of known public health importance. This survey produced the first list of ticks and other ectoparasites in the forest reserve and the third study of ectoparasites in Kedah. Fourteen species of these ectoparasites are new locality records.
    Matched MeSH terms: Mammals/parasitology
  2. Fulltext Historical and current distribution ranges and loss of mega-herbivores and carnivores of Asia
    Mahmood T, Vu TT, Campos-Arceiz A, Akrim F, Andleeb S, Farooq M, et al.
    PeerJ, 2021;9:e10738.
    PMID: 33628635 DOI: 10.7717/peerj.10738
    Ecosystem functioning is dependent a lot on large mammals, which are, however, vulnerable and facing extinction risks due to human impacts mainly. Megafauna of Asia has been declining for a long, not only in numbers but also in their distribution ranges. In the current study, we collected information on past and current occurrence and distribution records of Asia's megafauna species. We reconstructed the historical distribution ranges of the six herbivores and four carnivores for comparison with their present ranges, to quantify spatially explicit levels of mega-defaunation. Results revealed that historically the selected megafauna species were more widely distributed than at current. Severe range contraction was observed for the Asiatic lion, three rhino species, Asian elephant, tigers, and tapirs. Defaunation maps generated have revealed the vanishing of megafauna from parts of the East, Southeast, and Southwest Asia, even some protected Areas losing up to eight out of ten megafaunal species. These defaunation maps can help develop future conservation policies, to save the remaining distribution ranges of large mammals.
    Matched MeSH terms: Mammals
  3. Fulltext Plant disease control: understanding the roles of toxins and phytoalexins in host-pathogen interaction
    Magaji G. Usman, Tijjani Ahmadu, Adamu Jibrin Nayaya, Aisha M. Dodo
    The Pertanika Journal of Scholarly Research Reviews, 2018;4(1):54-66.
    MyJurnal
    Naturally, plant habitats are exposed to several potential effects of biotic and different abiotic environmental challenges. Several types of micro-organisms namely; bacteria, viruses, fungi, nematodes, mites, insects, mammals and other herbivorous animals are found in large amounts in all ecosystems, which lead to considerable reduction in crop productivity. These organisms are agents carrying different diseases that can damage the plants through the secretion of toxic-microbial poisons that can penetrate in the plant tissues. Toxins are injurious substances that act on plant protoplast to influence disease development. In response to the stress effect, plants defend themselves by bearing some substances such as phytoalexins. Production of phytoalexins is one of the complex mechanisms through which plants exhibit disease resistance. Several findings specifically on phytoalexins have widen the understanding in the fields of plant biochemistry and molecular biology. However, this review reports the interaction of toxins and phytoalexins in plant-pathogen cycle, research progress on the association of phytoalexins with plant disease resistance as well as the role of the phytoalexins in plant disease control.
    Matched MeSH terms: Mammals
  4. Fulltext Evolution of Structural and Functional Diversity of Spexin in Mammalian and Non-mammalian Vertebrate Species
    Lim CH, Lee MYM, Soga T, Parhar I
    Front Endocrinol (Lausanne), 2019;10:379.
    PMID: 31275244 DOI: 10.3389/fendo.2019.00379
    Spexin (SPX) is a novel neuropeptide, which was first identified in the human genome using bioinformatics. Since then, orthologs of human SPX have been identified in mammalian and non-mammalian vertebrates. The mature sequence of SPX, NWTPQAMLYLKGAQ, is evolutionally conserved across vertebrate species, with some variations in teleost species where Ala at position 13 is substituted by Thr. In mammals, the gene structure of SPX comprises six exons and five introns, however, variation exists within non-mammalian species, goldfish and zebrafish having five exons while grouper has six exons. Phylogenetic and synteny analysis, reveal that SPX is grouped together with two neuropeptides, kisspeptin (KISS) and galanin (GAL) as a family of peptides with a common evolutionary ancestor. A paralog of SPX, termed SPX2 has been identified in non-mammalians but not in the mammalian genome. Ligand-receptor interaction study also shows that SPX acts as a ligand for GAL receptor 2 (2a and 2b in non-mammalian vertebrates) and 3. SPX acts as a neuromodulator with multiple central and peripheral physiological roles in the regulation of insulin release, fat metabolism, feeding behavior, and reproduction. Collectively, this review provides a comprehensive overview of the evolutionary diversity as well as molecular and physiological roles of SPX in mammalian and non-mammalian vertebrate species.
    Matched MeSH terms: Mammals
  5. Systematic and distributional studies of helminths of Malayan mammals
    Lim Boo Liat, Heyneman D
    Med J Malaya, 1965 Sep;20(1):54.
    PMID: 4221415
    Matched MeSH terms: Mammals*
  6. Preliminary survey of some Malaysian wild mammals as potential laboratory experimental animals
    Lim BL
    Jikken Dobutsu, 1973;22 Suppl(0):195-9.
    PMID: 4807741
    Matched MeSH terms: Mammals*
  7. Unraveling the threat: Microplastics and nano-plastics' impact on reproductive viability across ecosystems
    Liang J, Ji F, Wang H, Zhu T, Rubinstein J, Worthington R, et al.
    Sci Total Environ, 2024 Feb 25;913:169525.
    PMID: 38141979 DOI: 10.1016/j.scitotenv.2023.169525
    Plastic pollution pervades both marine and terrestrial ecosystems, fragmenting over time into microplastics (MPs) and nano-plastics (NPs). These particles infiltrate organisms via ingestion, inhalation, and dermal absorption, predominantly through the trophic interactions. This review elucidated the impacts of MPs/NPs on the reproductive viability of various species. MPs/NPs lead to reduced reproduction rates, abnormal larval development and increased mortality in aquatic invertebrates. Microplastics cause hormone secretion disorders and gonadal tissue damage in fish. In addition, the fertilization rate of eggs is reduced, and the larval deformity rate and mortality rate are increased. Male mammals exposed to MPs/NPs exhibit testicular anomalies, compromised sperm health, endocrine disturbances, oxidative stress, inflammation, and granulocyte apoptosis. In female mammals, including humans, exposure culminates in ovarian and uterine deformities, endocrine imbalances, oxidative stress, inflammation, granulosa cell apoptosis, and tissue fibrogenesis. Rodent offspring exposed to MPs experience increased mortality rates, while survivors display metabolic perturbations, reproductive anomalies, and weakened immunity. These challenges are intrinsically linked to the transgenerational conveyance of MPs. The ubiquity of MPs/NPs threatens biodiversity and, crucially, jeopardizes human reproductive health. The current findings underscore the exigency for comprehensive research and proactive interventions to ameliorate the implications of these pollutants.
    Matched MeSH terms: Mammals
  8. Effects of reproductive status and high ambient temperatures on the body temperature of a free-ranging basoendotherm
    Levesque DL, Lobban KD, Lovegrove BG
    J. Comp. Physiol. B, Biochem. Syst. Environ. Physiol., 2014 Dec;184(8):1041-53.
    PMID: 25155185 DOI: 10.1007/s00360-014-0858-4
    Tenrecs (Order Afrosoricida) exhibit some of the lowest body temperatures (T b) of any eutherian mammal. They also have a high level of variability in both active and resting T bs and, at least in cool temperatures in captivity, frequently employ both short- and long-term torpor. The use of heterothermy by captive animals is, however, generally reduced during gestation and lactation. We present data long-term T b recordings collected from free-ranging S. setosus over the course of two reproductive seasons. In general, reproductive females had slightly higher (~32 °C) and less variable T b, whereas non-reproductive females and males showed both a higher propensity for torpor as well as lower (~30.5 °C) and more variable rest-phase T bs. Torpor expression defined using traditional means (using a threshold or cut-off T b) was much lower than predicted based on the high degree of heterothermy in captive tenrecs. However, torpor defined in this manner is likely to be underestimated in habitats where ambient temperature is close to T b. Our results caution against inferring metabolic states from T b alone and lend support to the recent call to define torpor in free-ranging animals based on mechanistic and not descriptive variables. In addition, lower variability in T b observed during gestation and lactation confirms that homeothermy is essential for reproduction in this species and probably for basoendothermic mammals in general. The relatively low costs of maintaining homeothermy in a sub-tropical environment might help shed light on how homeothermy could have evolved incrementally from an ancestral heterothermic condition.
    Matched MeSH terms: Mammals/physiology*
  9. Whence river blindness? The domestication of mammals and host-parasite co-evolution in the nematode genus Onchocerca
    Lefoulon E, Giannelli A, Makepeace BL, Mutafchiev Y, Townson S, Uni S, et al.
    Int J Parasitol, 2017 07;47(8):457-470.
    PMID: 28344097 DOI: 10.1016/j.ijpara.2016.12.009
    The genus Onchocerca includes 34 described species and represents one of the largest genera of the filarial nematodes within the family Onchocercidae. Representative members of this genus are mainly parasites of ungulates, with some exceptions such as Onchocerca lupi and Onchocerca volvulus, infecting carnivores and/or humans. For a long time, the evolutionary relationships amongst onchocercids remained poorly studied, as the systematics of this genus was impaired by the high morphological variability of species included in the taxon. Although some molecular phylogenies were developed, these studies were mainly focused on bovine Onchocerca spp. and O. volvulus, including assessments of Wolbachia endosymbionts. In the present study, we analysed 13 Onchocerca spp. from a larger host spectrum using a panel of seven different genes. Analysis of the coxI marker supports its usefulness for the identification of species within the genus. The evolutionary history of the genus has been herein revised by multi-gene phylogenies, presenting three strongly supported clades of Onchocerca spp. Analyses of co-evolutionary scenarios between Onchocerca and their vertebrate hosts underline the effect of domestication on Onchocerca speciation. Our study indicates that a host switch event occurred between Bovidae, Canidae and humans. Cophylogenetic analyses between Onchocerca and the endosymbiotic bacterium Wolbachia indicate the strongest co-evolutionary pattern ever registered within the filarial nematodes. Finally, this dataset indicates that the clade composed by O. lupi, Onchocerca gutturosa, Onchocerca lienalis, Onchocerca ochengi and O. volvulus derived from recent speciation.
    Matched MeSH terms: Mammals/parasitology*
  10. Field calibration of blowfly-derived DNA against traditional methods for assessing mammal diversity in tropical forests
    Lee PS, Gan HM, Clements GR, Wilson JJ
    Genome, 2016 May 11.
    PMID: 27696907
    Mammal diversity assessments based on DNA derived from invertebrates have been suggested as alternatives to assessments based on traditional methods; however, no study has field-tested both approaches simultaneously. In Peninsular Malaysia, we calibrated the performance of mammal DNA derived from blowflies (Diptera: Calliphoridae) against traditional methods used to detect species. We first compared five methods (cage trapping, mist netting, hair trapping, scat collection, and blowfly-derived DNA) in a forest reserve with no recent reports of megafauna. Blowfly-derived DNA and mist netting detected the joint highest number of species (n = 6). Only one species was detected by multiple methods. Compared to the other methods, blowfly-derived DNA detected both volant and non-volant species. In another forest reserve, rich in megafauna, we calibrated blowfly-derived DNA against camera traps. Blowfly-derived DNA detected more species (n = 11) than camera traps (n = 9), with only one species detected by both methods. The rarefaction curve indicated that blowfly-derived DNA would continue to detect more species with greater sampling effort. With further calibration, blowfly-derived DNA may join the list of traditional field methods. Areas for further investigation include blowfly feeding and dispersal biology, primer biases, and the assembly of a comprehensive and taxonomically-consistent DNA barcode reference library.
    Matched MeSH terms: Mammals
  11. Fulltext SARS-CoV-2 spike protein predicted to form complexes with host receptor protein orthologues from a broad range of mammals
    Lam SD, Bordin N, Waman VP, Scholes HM, Ashford P, Sen N, et al.
    Sci Rep, 2020 Oct 05;10(1):16471.
    PMID: 33020502 DOI: 10.1038/s41598-020-71936-5
    SARS-CoV-2 has a zoonotic origin and was transmitted to humans via an undetermined intermediate host, leading to infections in humans and other mammals. To enter host cells, the viral spike protein (S-protein) binds to its receptor, ACE2, and is then processed by TMPRSS2. Whilst receptor binding contributes to the viral host range, S-protein:ACE2 complexes from other animals have not been investigated widely. To predict infection risks, we modelled S-protein:ACE2 complexes from 215 vertebrate species, calculated changes in the energy of the complex caused by mutations in each species, relative to human ACE2, and correlated these changes with COVID-19 infection data. We also analysed structural interactions to better understand the key residues contributing to affinity. We predict that mutations are more detrimental in ACE2 than TMPRSS2. Finally, we demonstrate phylogenetically that human SARS-CoV-2 strains have been isolated in animals. Our results suggest that SARS-CoV-2 can infect a broad range of mammals, but few fish, birds or reptiles. Susceptible animals could serve as reservoirs of the virus, necessitating careful ongoing animal management and surveillance.
    Matched MeSH terms: Mammals
  12. Hyaluronic Acid-Based Bioconjugate Systems, Scaffolds, and Their Therapeutic Potential
    Kotla NG, Mohd Isa IL, Larrañaga A, Maddiboyina B, Swamy SK, Sivaraman G, et al.
    Adv Healthc Mater, 2023 Aug;12(20):e2203104.
    PMID: 36972409 DOI: 10.1002/adhm.202203104
    In recent years, the development of hyaluronic acid or hyaluronan (HA) based scaffolds, medical devices, bioconjugate systems have expanded into a broad range of research and clinical applications. Research findings over the last two decades suggest that the abundance of HA in most mammalian tissues with distinctive biological roles and chemical simplicity for modifications have made it an attractive material with a rapidly growing global market. Besides its use as native forms, HA has received much interest on so-called "HA-bioconjugates" and "modified-HA systems". In this review, the importance of chemical modifications of HA, underlying rationale approaches, and various advancements of bioconjugate derivatives with their potential physicochemical, and pharmacological advantages are summarized. This review also highlights the current and emerging HA-based conjugates of small molecules, macromolecules, crosslinked systems, and surface coating strategies with their biological implications, including their potentials and key challenges discussed in detail.
    Matched MeSH terms: Mammals
  13. Fulltext Estimating biodiversity impacts without field surveys: A case study in northern Borneo
    Kitzes J, Shirley R
    Ambio, 2016 Feb;45(1):110-9.
    PMID: 26169084 DOI: 10.1007/s13280-015-0683-3
    In many regions of the world, biodiversity surveys are not routinely conducted prior to activities that lead to land conversion, such as development projects. Here we use top-down methods based on global range maps and bottom-up methods based on macroecological scaling laws to illuminate the otherwise hidden biodiversity impacts of three large hydroelectric dams in the state of Sarawak in northern Borneo. Our retrospective impact assessment finds that the three reservoirs inundate habitat for 331 species of birds (3 million individuals) and 164 species of mammals (110 million individuals). A minimum of 2100 species of trees (900 million individuals) and 17 700 species of arthropods (34 billion individuals) are estimated to be affected by the dams. No extinctions of bird, mammal, or tree species are expected due to habitat loss following reservoir inundation, while 4-7 arthropod species extinctions are predicted. These assessment methods are applicable to any data-limited system undergoing land-use change.
    Matched MeSH terms: Mammals
  14. Fulltext The illustration of a rat large intestine: a model for the effect of Carcinogens
    Khodijah Zulkiflee, Zunariah Buyong, Asmah Hanim Hamdan
    International Medical Journal Malaysia, 2017;16(11):28-28.
    MyJurnal
    Rat large intestine is an established model to study the effect of
    carcinogens. There are several distinctive features among mammalian gastrointestinal
    tracts in gross anatomy but they share some basic similar structures. The variety in
    digestive system relies on its physiology. Rats rarely eat high fatty diets, thus the
    function of gall bladder become less significant in their digestive system and this is
    justified by the fact that rats have none. Rats have large caecum designated for their
    fermentation chamber to digest cellulose. Another notable difference is the size and
    length of colon itself, in which human colon is significantly bigger and longer. We aimed
    to demonstrate the gross anatomy and histology of rat digestive system particularly the
    large intestine. (Copied from article).
    Matched MeSH terms: Mammals
  15. CRISPR-Cas9 Genome Editing Tool for the Production of Industrial Biopharmaceuticals
    Khan AH, Tye GJ, Noordin R
    Mol Biotechnol, 2020 Sep;62(9):401-411.
    PMID: 32749657 DOI: 10.1007/s12033-020-00265-9
    A broad range of cell lines with characteristic features are used as bio-factories to produce recombinant proteins for basic research and therapeutic purposes. Genetic engineering strategies have been used to manipulate the genome of mammalian cells, insects, and yeasts for heterologous expression. One reason is that the glycosylation pattern of the expression hosts differs somehow from mammalian cells, which may cause immunogenic reactions upon administration in humans. CRISPR-Cas9 is a simple, efficient, and versatile genome engineering tool that can be programmed to precisely make double-stranded breaks at the desired loci. Compared to the classical genome editing methods, a CRISPR-Cas9 system is an ideal tool, providing the opportunity to integrate or delete genes from the target organisms. Besides broadened applications, limited studies have used CRISPR-Cas9 for editing the endogenous pathways in expression systems for biopharmaceutical applications. In the present review, we discuss the use of CRISPR-Cas9 in expression systems to improve host cell lines, increase product yield, and humanize glycosylation pathways by targeting intrinsic genes.
    Matched MeSH terms: Mammals
  16. An annotated checklist of the chewing lice (Phthiraptera: Ischnocera, Amblycera, Rhynchophthirina) from domestic and wild mammals in Malaysia
    Kazim AR, Houssaini J, Tappe D, Heo CC
    Zootaxa, 2023 Apr 04;5263(1):40-60.
    PMID: 37045000 DOI: 10.11646/zootaxa.5263.1.2
    Literature records of chewing lice (Phthiraptera) from mammals in Malaysia were checked and reviewed, resulting in a list of 13 confirmed species belonging to eight genera (Bovicola, Felicola, Gliricola, Gyropus, Haematomyzus, Heterodoxus, Lorisicola, Trichodectes) from four families (Boopiidae, Gyropidae, Haematomyzidae, Trichodectidae) in three suborders (Amblycera, Ischnocera, Rhynchophthirina). We present a checklist of those 13 chewing lice recorded from Peninsular Malaysia and Malaysian Borneo, including hosts, localities, and literature references. An additional 12 species are listed and discussed as possibly occurring in this country. A host-louse list is also given.
    Matched MeSH terms: Mammals
  17. An annotated checklist of sucking lice (Phthiraptera: Anoplura) from domestic and wild mammals in Malaysia, with lists of hosts and pathogens
    Kazim AR, Houssaini J, Tappe D, Heo CC
    Zootaxa, 2022 Dec 02;5214(3):301-336.
    PMID: 37044900 DOI: 10.11646/zootaxa.5214.3.1
    Literature records of sucking lice (Phthiraptera: Anoplura) from Malaysia were checked and reviewed, resulting in a list of 34 established species belonging to 11 genera (Ancistroplax, Atopophthirus, Enderleinellus, Haematopinus, Hamophthirius, Hoplopleura, Linognathus, Neohaematopinus, Pedicinus, Polyplax and Sathrax). Furthermore, three local and six cosmopolitan louse species are regarded as dubious in Malaysia, due to misidentifications or lack of locality records. Also, pathogens known to be associated with the sucking lice are listed. The alarming conservation status of some Malaysian mammalian host species and their sucking lice warrant more research and imminent action to preserve the biodiversity of the country. This paper presents the first complete checklist of anopluran lice from both Peninsular Malaysia and Malaysian Borneo, including localities, literature references and a host-louse list.
    Matched MeSH terms: Mammals
  18. Rapid antidepressant-like effects of muscarinic receptor antagonists require BDNF-dependent signaling in the ventrolateral periaqueductal gray
    Kan HW, Peng WH, Wu CC, Wang DW, Lee MT, Lee YK, et al.
    Psychopharmacology (Berl), 2022 Dec;239(12):3805-3818.
    PMID: 36221037 DOI: 10.1007/s00213-022-06250-1
    RATIONALE: Clinical reports reveal that scopolamine, an acetylcholine muscarinic receptor antagonist, exerts rapid antidepressant effects in depressed patients, but the mechanisms underlying the therapeutic effects have not been fully identified.

    OBJECTIVES: The present study examines the cellular mechanisms by which scopolamine produces antidepressant-like effects through its action in the ventrolateral midbrain periaqueductal gray (vlPAG).

    METHODS: We used a well-established mouse model of depression induced by chronic restraint stress (CRS) exposure for 14 days. Behaviors were tested using the forced swim test (FST), tail suspension test (TST), female urine sniffing test (FUST), novelty-suppressed feeding test (NSFT), and locomotor activity (LMA). Synaptic transmission in the vlPAG was measured by whole-cell patch-clamp recordings. IntravlPAG microinjection was used to pharmacologically verify the signaling cascades of scopolamine in the vlPAG.

    RESULTS: The results demonstrated that intraperitoneal injection of scopolamine produced antidepressant-like effects in a dose-dependent manner without affecting locomotor activity. CRS elicited depression-like behaviors, whereas intraperitoneal injection of scopolamine alleviated CRS-induced depression-like behaviors. CRS diminished glutamatergic transmission in the vlPAG, while scopolamine reversed the above effects. Moreover, intravlPAG microinjection of the L-type voltage-dependent calcium channel (VDCC) blocker verapamil, tropomyosin-related kinase B (TrkB) receptor antagonist ANA-12, mammalian target of rapamycin complex 1 (mTORC1) inhibitor rapamycin, and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPA) antagonist CNQX prevented scopolamine-induced antidepressant-like effects.

    CONCLUSIONS: Scopolamine ameliorated CRS-elicited depression-like behavior required activation of VDCC, resulting in activity-dependent release of brain-derived neurotrophic factor (BDNF), engaging the TrkB receptor and downstream mTORC1 signaling in the vlPAG.

    Matched MeSH terms: Mammals/metabolism
  19. An endogenous lentivirus in the germline of a rodent
    Kambol R, Gatseva A, Gifford RJ
    Retrovirology, 2022 Dec 20;19(1):30.
    PMID: 36539757 DOI: 10.1186/s12977-022-00615-2
    Lentiviruses (genus Lentivirus) are complex retroviruses that infect a broad range of mammals, including humans. Unlike many other retrovirus genera, lentiviruses have only rarely been incorporated into the mammalian germline. However, a small number of endogenous retrovirus (ERV) lineages have been identified, and these rare genomic "fossils" can provide crucial insights into the long-term history of lentivirus evolution. Here, we describe a previously unreported endogenous lentivirus lineage in the genome of the South African springhare (Pedetes capensis), demonstrating that the host range of lentiviruses has historically extended to rodents (order Rodentia). Furthermore, through comparative and phylogenetic analysis of lentivirus and ERV genomes, considering the biogeographic and ecological characteristics of host species, we reveal broader insights into the long-term evolutionary history of the genus.
    Matched MeSH terms: Mammals/genetics
  20. Fulltext Shifting baselines on a tropical forest frontier: extirpations drive declines in local ecological knowledge
    Kai Z, Woan TS, Jie L, Goodale E, Kitajima K, Bagchi R, et al.
    PLoS One, 2014;9(1):e86598.
    PMID: 24466163 DOI: 10.1371/journal.pone.0086598
    The value of local ecological knowledge (LEK) to conservation is increasingly recognised, but LEK is being rapidly lost as indigenous livelihoods change. Biodiversity loss is also a driver of the loss of LEK, but quantitative study is lacking. In our study landscape in SW China, a large proportion of species have been extirpated. Hence, we were interested to understand whether species extirpation might have led to an erosion of LEK and the implications this might have for conservation. So we investigated peoples' ability to name a selection of birds and mammals in their local language from pictures. Age was correlated to frequency of forest visits as a teenager and is likely to be closely correlated to other known drivers of the loss of LEK, such as declining forest dependence. We found men were better at identifying birds overall and that older people were better able to identify birds to the species as compared to group levels (approximately equivalent to genus). The effect of age was also stronger among women. However, after controlling for these factors, species abundance was by far the most important parameter in determining peoples' ability to name birds. People were unable to name any locally extirpated birds at the species level. However, contrary to expectations, people were better able to identify extirpated mammals at the species level than extant ones. However, extirpated mammals tend to be more charismatic species and several respondents indicated they were only familiar with them through TV documentaries. Younger people today cannot experience the sights and sounds of forest animals that their parents grew up with and, consequently, knowledge of these species is passing from cultural memory. We suggest that engaging older members of the community and linking the preservation of LEK to biodiversity conservation may help generate support for conservation.
    Matched MeSH terms: Mammals
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