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  1 / 817 MEDLINE  
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[PMID]:29239483
[Au] Autor:Baker B; Taylor S; Montrose VT
[Ad] Endereço:Animal Welfare Research and Knowledge Exchange Arena, Department of Animal and Agriculture, University Centre Hartpury, Hartpury, Gloucestershire, United Kingdom.
[Ti] Título:The effects of olfactory stimulation on the behavior of captive ring-tailed lemurs (Lemur catta).
[So] Source:Zoo Biol;37(1):16-22, 2018 Jan.
[Is] ISSN:1098-2361
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ring-tailed lemurs reside in many animal collections worldwide. Lemur welfare may be a cause of concern due to some captive individuals exhibiting stereotypic behavior. Despite these concerns, there has been little exploration of methods of environmental enrichment for ring-tailed lemurs. Olfactory stimulation can enhance captive animal welfare by encouraging species-typical behaviors, enhancing behavioral diversity, and decreasing stereotypic behaviors. We aimed to investigate the effects of olfactory stimulation via lavender, peppermint, coconut, and prey odor upon the behavior of eight captive ring-tailed lemurs. We exposed the lemurs to six individual odor conditions (odor control, novel object control, lavender, peppermint, coconut, and Morio worms) and observed them for 4 hr a day for 3 days with an intervening period of 4 days between conditions. We recorded the lemurs' behavior under each condition using instantaneous scan sampling. We found significant effects of olfactory stimulation on the ring-tailed lemurs' behavior in the initial analysis but these did not survive correction for multiple testing. Overall, while our findings are suggestive of a general effect of olfactory stimulation on the captive ring-tailed lemurs they did not indicate a marked influence of olfactory condition. However, further investigation with a larger sample size and more biologically relevant odors may be beneficial to fully examine potential effects of olfactory stimulation in captive lemurs.
[Mh] Termos MeSH primário: Bem-Estar do Animal
Animais de Zoológico
Comportamento Animal
Lemur/fisiologia
Odorantes
Olfato
[Mh] Termos MeSH secundário: Criação de Animais Domésticos/métodos
Animais
Feminino
Masculino
Atividade Motora
[Pt] Tipo de publicação:CLINICAL TRIAL; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171215
[St] Status:MEDLINE
[do] DOI:10.1002/zoo.21392


  2 / 817 MEDLINE  
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[PMID]:28547779
[Au] Autor:Collins C; Corkery I; Haigh A; McKeown S; Quirke T; O'Riordan R
[Ad] Endereço:School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland.
[Ti] Título:The effects of environmental and visitor variables on the behavior of free-ranging ring-tailed lemurs (Lemur catta) in captivity.
[So] Source:Zoo Biol;36(4):250-260, 2017 Jul.
[Is] ISSN:1098-2361
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The effect of the zoo environment on captive animals is an increasingly studied area of zoo research, with visitor effects and exhibit design recognized as two of the factors that can contribute to animal welfare in captivity. It is known that in some situations, visitors may be stressful to zoo-housed primates, and this may be compounded by environmental factors such as the weather, the time of day, and zoo husbandry routines. Exhibit design and proximity of the public are also known to influence behavioral response of primates to visitors; however, there is minimal research on free-ranging zoo animals, even though they are potentially subjected to intense interactions with visitors. The current study explores the effect of the zoo environment, several visitor variables and specific animal-visitor interactions on the behavior of free-ranging ring-tailed lemurs (Lemur catta) at Fota Wildlife Park, Ireland. Data were obtained through scan samples collected over 18 months (n = 12,263) and analyzed using a range of statistical tests, including general estimating equations (GEE). Results demonstrate that the free-ranging lemurs' behavior at Fota Wildlife Park is affected by season, weather and time of day. Similarities in feeding behavior exist between the free-ranging group and lemurs in the wild when resources are plentiful. Visitor variables had a limited effect on lemur behavior and behavioral diversity level. Lemurs rarely reacted to visitors when specific interactions were considered. Generally, the results indicate that the ring-tailed lemurs in this study have adapted well to the zoo environment and habituated to visitors.
[Mh] Termos MeSH primário: Animais de Zoológico
Comportamento Animal/fisiologia
Abrigo para Animais
Lemur/fisiologia
[Mh] Termos MeSH secundário: Criação de Animais Domésticos
Animais
Feminino
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170527
[St] Status:MEDLINE
[do] DOI:10.1002/zoo.21370


  3 / 817 MEDLINE  
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[PMID]:28429848
[Au] Autor:Bertoncini S; D'Ercole J; Brisighelli F; Ramanamanjato JB; Capelli C; Tofanelli S; Donati G
[Ad] Endereço:Department of Biology, University of Pisa, Via Ghini 13, Pisa, 56126, Italy.
[Ti] Título:Stuck in fragments: Population genetics of the Endangered collared brown lemur Eulemur collaris in the Malagasy littoral forest.
[So] Source:Am J Phys Anthropol;163(3):542-552, 2017 Jul.
[Is] ISSN:1096-8644
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES: The Endangered collared brown lemur (Eulemur collaris) is the largest primate living in the littoral forest of southeastern Madagascar, a top priority habitat for biodiversity conservation on the island. Because this lemur is a key seed-disperser, an evaluation of the structure and connectivity of the populations surviving in the forest fragments is urgently needed to guide conservation plans. MATERIALS AND METHODS: Genetic variability at autosomal microsatellites and mitochondrial DNA was investigated in a total of 49 collared brown lemurs sampled by non-invasive methods in three littoral forest fragments and in the nearby lowland humid forest. RESULTS: The overall genetic diversity of E. collaris in the southeastern coastal region of Madagascar was lower than in other populations, as well as in other lemur species. The population appears highly structured, with less variable and more inbred groups inhabiting the littoral forest fragments compared to the inland area. Major barriers to gene flow were identified isolating littoral forest fragments from each other and from the inland lowland humid forest. DISCUSSION: Medium to long-term drift and scarce gene flow is the scenario that best explains the current genetic distribution. Habitat discontinuities such as rivers and grassland between forest fragments played a major role in structuring the population. A common history of size contraction is pointed out by several genetic estimators, indicating a possible ecological crisis triggered around 1,300 years ago. The adoption of strategies aimed at facilitating gene flow and population growth appears crucial to delay further loss of genetic diversity.
[Mh] Termos MeSH primário: Fluxo Gênico/genética
Variação Genética/genética
Genética Populacional
Lemur/genética
[Mh] Termos MeSH secundário: Animais
Antropologia Física
Ecossistema
Espécies em Perigo de Extinção
Florestas
Madagáscar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170821
[Lr] Data última revisão:
170821
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170422
[St] Status:MEDLINE
[do] DOI:10.1002/ajpa.23230


  4 / 817 MEDLINE  
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[PMID]:28295350
[Au] Autor:Raharison F; Bourges Abella N; Sautet J; Deviers A; Mogicato G
[Ad] Endereço:Département d'Enseignement de Sciences et de Médecine Vétérinaire, Faculté de Médecine, Université d'Antananarivo, Antananarivo, Madagascar.
[Ti] Título:Anatomy, histology, and ultrasonography of the normal adrenal gland in brown lemur: Eulemur fulvus.
[So] Source:J Med Primatol;46(2):25-30, 2017 Apr.
[Is] ISSN:1600-0684
[Cp] País de publicação:Denmark
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The medical care currently to brown lemurs (Eulemur fulvus) is limited by a lack of knowledge of their anatomy. The aim of this study was to describe the anatomy and histology and obtain ultrasonographic measurements of normal adrenal glands in these animals. METHODS: The adrenal glands of four lemurs cadavers were used for the anatomical and histological studies, and those of 15 anesthetized lemurs were examined by ultrasonography. RESULTS: Anatomically, the adrenal glands of brown lemurs are comparable to those of other species. The histological findings showed that the cortex is organized into three distinct layers, whereas most domestic mammals have an additional zone. The surface area of the adrenal glands increased with body weight, and the area of the right adrenal was slightly larger than the left. CONCLUSIONS: We suggest using ultrasonography to aid the etiological diagnosis of behavioral abnormalities that might be due to dysfunctions of the adrenal gland.
[Mh] Termos MeSH primário: Glândulas Suprarrenais/anatomia & histologia
Glândulas Suprarrenais/diagnóstico por imagem
[Mh] Termos MeSH secundário: Animais
Feminino
Lemur/anatomia & histologia
Lemuridae/anatomia & histologia
Masculino
Ultrassonografia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170316
[St] Status:MEDLINE
[do] DOI:10.1111/jmp.12255


  5 / 817 MEDLINE  
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[PMID]:28161098
[Au] Autor:Sasaki E; Tokiwa T; Tsugo K; Higashi Y; Hori H; Une Y
[Ad] Endereço:Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Kanagawa, Japan.
[Ti] Título:Peracute Bacterial Meningitis due to Infection with Klebsiella pneumoniae in Captive-bred Ruffed Lemurs (Varecia variegate).
[So] Source:J Comp Pathol;156(2-3):281-285, 2017 Feb - Apr.
[Is] ISSN:1532-3129
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We describe the development of neurological signs in four juvenile black-and-white ruffed lemurs (Varecia variegate), housed at a petting zoo in Japan. The clinical course was severe, with three lemurs dying within 1 day of the appearance of clinical signs. The other lemur was treated and survived. Pathological analyses demonstrated meningitis and the presence of gram-negative bacilli in the cerebrum, cerebellum, palatine tonsil and liver. Klebsiella pneumoniae was isolated from the brain of all of the dead lemurs. Multilocus sequence typing analysis showed that all the isolates were sequence type 86 (ST86). To our knowledge, this is the first determination of K. pneumoniae infection in ruffed lemurs of this genus. K. pneumoniae infection may represent a risk to lemurs and people who come into contact with infected animals.
[Mh] Termos MeSH primário: Animais de Zoológico/microbiologia
Infecções por Klebsiella/veterinária
Lemur/microbiologia
Meningites Bacterianas/veterinária
[Mh] Termos MeSH secundário: Animais
Klebsiella pneumoniae
Masculino
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170821
[Lr] Data última revisão:
170821
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170206
[St] Status:MEDLINE


  6 / 817 MEDLINE  
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[PMID]:28079085
[Au] Autor:Reuter KE; LaFleur M; Clarke TA
[Ad] Endereço:Conservation International, Nairobi, Kenya.
[Ti] Título:Endangered species: Illegal lemur trade grows in Madagascar.
[So] Source:Nature;541(7636):157, 2017 01 11.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Comércio/economia
Comércio/legislação & jurisprudência
Espécies em Perigo de Extinção/economia
Espécies em Perigo de Extinção/legislação & jurisprudência
Lemur
[Mh] Termos MeSH secundário: Animais
Produto Interno Bruto
Madagáscar
Tartarugas
[Pt] Tipo de publicação:LETTER
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170413
[Lr] Data última revisão:
170413
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170113
[St] Status:MEDLINE
[do] DOI:10.1038/541157d


  7 / 817 MEDLINE  
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[PMID]:27544195
[Au] Autor:Tennenhouse EM; Putman S; Boisseau NP; Brown JL
[Ad] Endereço:Department of Anthropology, University of Toronto, 19 Russell Street, Toronto, ON, M5S 2S2, Canada. erica.tennenhouse@utoronto.ca.
[Ti] Título:Relationships between steroid hormones in hair and social behaviour in ring-tailed lemurs (Lemur catta).
[So] Source:Primates;58(1):199-209, 2017 Jan.
[Is] ISSN:1610-7365
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Relationships between the hypothalamic-pituitary adrenal and hypothalamic-pituitary gonadal axes and social behaviour in primates are complex. By using hair to quantify steroid hormones, one can obtain retrospective estimates of long-term free hormone levels from a single sample. In this study, hair was used to quantify long-term levels of cortisol, testosterone, and estradiol among members of a colony of ring-tailed lemurs (Lemur catta) to explore associations between intra- and intersexual levels of these hormones and social behaviour between the breeding and birthing seasons. Positive trends between hair cortisol and rates of receiving aggression approached significance for males and females after controlling for age. While there was no relationship between sex steroid concentrations and intrasexual social interactions, high rates of aggression in females over the study period coincided with females exhibiting the same average concentrations of testosterone as males. We, therefore, conclude that being the recipient of aggression might be more stressful than being aggressive in ring-tailed lemurs, and that testosterone potentially mediates female dominance in this species. We suggest that further investigation of hair hormones and behaviour in additional primate species could provide a useful comparative framework to guide interpretation of these novel findings.
[Mh] Termos MeSH primário: Estradiol/metabolismo
Hidrocortisona/metabolismo
Lemur/fisiologia
Comportamento Social
Testosterona/metabolismo
[Mh] Termos MeSH secundário: Androgênios/metabolismo
Animais
Estrogênios/metabolismo
Feminino
Cabelo/química
Masculino
Estações do Ano
Fatores Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Androgens); 0 (Estrogens); 3XMK78S47O (Testosterone); 4TI98Z838E (Estradiol); WI4X0X7BPJ (Hydrocortisone)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171014
[Lr] Data última revisão:
171014
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160822
[St] Status:MEDLINE
[do] DOI:10.1007/s10329-016-0566-7


  8 / 817 MEDLINE  
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[PMID]:28081528
[Au] Autor:LaFleur M; Clarke TA; Reuter K; Schaeffer T
[Ad] Endereço:Department of Anthropology, University of California San Diego, La Jolla, CA, USA.
[Ti] Título:Rapid Decrease in Populations of Wild Ring-Tailed Lemurs (Lemur catta) in Madagascar.
[So] Source:Folia Primatol (Basel);87(5):320-330, 2016.
[Is] ISSN:1421-9980
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Lemurs are the most threatened group of mammals on earth. Lemur catta (ring-tailed lemur) represents one of the most iconic lemur species and faces numerous anthropogenic threats in the wild. In this study, we present population estimates from 32 sites across the range of L. catta, collected from primary and secondary data sources, to assess the number of ring-tailed lemurs left in the wild. We estimate that there are approximately 2,220 individual L. catta remaining in the 32 sites considered. We note local extinctions of populations of L. catta in at least 12 of the 32 sites examined, and that significantly more extinctions occurred in areas without some form of protection. This decrease in extant populations could represent a decrease of more than 95% of all ring-tailed lemurs in Madagascar since the year 2000. While these results should be considered preliminary, we stress the rapid decline of the species and note that habitat loss, bushmeat hunting and the illegal pet trade are driving populations to local extinction. Based on the data presented here, urgent and immediate funding and conservation action are crucial to ensure the viability of the remaining wild populations of ring-tailed lemurs.
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais
Lemur
[Mh] Termos MeSH secundário: Animais
Ecossistema
Madagáscar
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170131
[Lr] Data última revisão:
170131
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170113
[St] Status:MEDLINE
[do] DOI:10.1159/000455121


  9 / 817 MEDLINE  
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[PMID]:27753216
[Au] Autor:Tattersall I
[Ad] Endereço:American Museum of Natural History, New York, NY.
[Ti] Título:Robert Wald Sussman 1941-2016.
[So] Source:Evol Anthropol;25(5):221, 2016 Sep.
[Is] ISSN:1520-6505
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Antropologia Física
Ecologia
[Mh] Termos MeSH secundário: Américas
Animais
Seres Humanos
Lemur
Madagáscar
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170126
[Lr] Data última revisão:
170126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161019
[St] Status:MEDLINE
[do] DOI:10.1002/evan.21503


  10 / 817 MEDLINE  
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[PMID]:27532127
[Au] Autor:Ballhorn DJ; Rakotoarivelo FP; Kautz S
[Ad] Endereço:Department of Biology, Portland State University, 1719 SW 10th Ave, Portland, OR 97201, United States of America.
[Ti] Título:Coevolution of Cyanogenic Bamboos and Bamboo Lemurs on Madagascar.
[So] Source:PLoS One;11(8):e0158935, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Feeding strategies of specialist herbivores often originate from the coevolutionary arms race of plant defenses and counter-adaptations of herbivores. The interaction between bamboo lemurs and cyanogenic bamboos on Madagascar represents a unique system to study diffuse coevolutionary processes between mammalian herbivores and plant defenses. Bamboo lemurs have different degrees of dietary specialization while bamboos show different levels of chemical defense. In this study, we found variation in cyanogenic potential (HCNp) and nutritive characteristics among five sympatric bamboo species in the Ranomafana area, southeastern Madagascar. The HCNp ranged from 209±72 µmol cyanide*g-1 dwt in Cathariostachys madagascariensis to no cyanide in Bambusa madagascariensis. Among three sympatric bamboo lemur species, the greater bamboo lemur (Prolemur simus) has the narrowest food range as it almost exclusively feeds on the highly cyanogenic C. madagascariensis. Our data suggest that high HCNp is the derived state in bamboos. The ancestral state of lemurs is most likely "generalist" while the ancestral state of bamboo lemurs was determined as equivocal. Nevertheless, as recent bamboo lemurs comprise several "facultative specialists" and only one "obligate specialist" adaptive radiation due to increased flexibility is likely. We propose that escaping a strict food plant specialization enabled facultative specialist bamboo lemurs to inhabit diverse geographical areas.
[Mh] Termos MeSH primário: Bambusa/química
Evolução Biológica
Cianetos/análise
Dieta
Comportamento Alimentar
Lemur/metabolismo
[Mh] Termos MeSH secundário: Animais
Madagáscar
Filogenia
Alinhamento de Sequência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cyanides)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170803
[Lr] Data última revisão:
170803
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160818
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0158935



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