Bibliographies thématiques / Myrmecophagy

Littérature scientifique sur le sujet « Myrmecophagy »

Auteur : Grafiati
Publié le 18 mai 2024

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Articles de revues sur le sujet "Myrmecophagy"

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Cushing, Paula E. « Spider-Ant Associations : An Updated Review of Myrmecomorphy, Myrmecophily, and Myrmecophagy in Spiders ». Psyche : A Journal of Entomology 2012 (2012) : 1–23. http://dx.doi.org/10.1155/2012/151989.

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This paper provides a summary of the extensive theoretical and empirical work that has been carried out in recent years testing the adaptational significance of various spider-ant associations. Hundreds of species of spiders have evolved close relationships with ants and can be classified as myrmecomorphs, myrmecophiles, or myrmecophages. Myrmecomorphs are Batesian mimics. Their close morphological and behavioral resemblance to ants confers strong survival advantages against visually hunting predators. Some species of spiders have become integrated into the ant society as myrmecophiles or symbionts. These spider myrmecophiles gain protection against their own predators, live in an environment with a stable climate, and are typically surrounded by abundant food resources. The adaptations by which this integration is made possible are poorly known, although it is hypothesized that most spider myrmecophiles are chemical mimics and some are even phoretic on their hosts. The third type of spider-ant association discussed is myrmecophagy—or predatory specialization on ants. A table of known spider myrmecophages is provided as is information on their biology and hunting strategies. Myrmecophagy provides these predators with an essentially unlimited food supply and may even confer other protections to the spiders.
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Vantaux, Amélie, Olivier Roux, Alexandra Magro et Jérôme Orivel. « Evolutionary Perspectives on Myrmecophily in Ladybirds ». Psyche : A Journal of Entomology 2012 (2012) : 1–7. http://dx.doi.org/10.1155/2012/591570.

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Myrmecophiles are species that usually have developed specialized traits to cope with the aggressiveness of ants enabling them to live in their vicinity. Many coccinellid species are predators of Hemiptera; the latter is also often protected by ants. Therefore these ladybirds frequently interact with ants, and some species have become myrmecophilous. In this paper, we aim to provide an overview of the evolution of myrmecophilous traits in ladybirds. We then discuss the costs and benefits of myrmecophily and the dietary shift to myrmecophagy observed in a few species.
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Ma, Jing-E., Lin-Miao Li, Hai-Ying Jiang, Xiu-Juan Zhang, Juan Li, Guan-Yu Li, Li-Hong Yuan, Jun Wu et Jin-Ping Chen. « Transcriptomic analysis identifies genes and pathways related to myrmecophagy in the Malayan pangolin (Manis javanica) ». PeerJ 5 (22 décembre 2017) : e4140. http://dx.doi.org/10.7717/peerj.4140.

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The Malayan pangolin (Manis javanica) is an unusual, scale-covered, toothless mammal that specializes in myrmecophagy. Due to their threatened status and continuing decline in the wild, concerted efforts have been made to conserve and rescue this species in captivity in China. Maintaining this species in captivity is a significant challenge, partly because little is known of the molecular mechanisms of its digestive system. Here, the first large-scale sequencing analyses of the salivary gland, liver and small intestine transcriptomes of an adult M. javanica genome were performed, and the results were compared with published liver transcriptome profiles for a pregnant M. javanica female. A total of 24,452 transcripts were obtained, among which 22,538 were annotated on the basis of seven databases. In addition, 3,373 new genes were predicted, of which 1,459 were annotated. Several pathways were found to be involved in myrmecophagy, including olfactory transduction, amino sugar and nucleotide sugar metabolism, lipid metabolism, and terpenoid and polyketide metabolism pathways. Many of the annotated transcripts were involved in digestive functions: 997 transcripts were related to sensory perception, 129 were related to digestive enzyme gene families, and 199 were related to molecular transporters. One transcript for an acidic mammalian chitinase was found in the annotated data, and this might be closely related to the unique digestive function of pangolins. These pathways and transcripts are involved in specialization processes related to myrmecophagy (a form of insectivory) and carbohydrate, protein and lipid digestive pathways, probably reflecting adaptations to myrmecophagy. Our study is the first to investigate the molecular mechanisms underlying myrmecophagy in M. javanica, and we hope that our results may play a role in the conservation of this species.
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Mendonça, Cindy Anne Ferreira, Marcos Antônio Pesquero, Rosalinda Dos Santos Damasceno Carvalho et Filipe Viegas de Arruda. « Myrmecophily and Myrmecophagy of Attacobius lavape (Araneae : Corinnidae) on Solenopsis saevissima (Hymenoptera : Myrmicinae) ». Sociobiology 66, no 4 (30 décembre 2019) : 545. http://dx.doi.org/10.13102/sociobiology.v66i4.4431.

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Attacobius lavape, a small spider from the Corinnidae family, has been recently described living inside a fire ant colony of Solenopsis saevissima species in the municipality of Morrinhos, south region of the Goiás State, Brazil. Yet several aspects of this spider relationship with the host ant remain unknown. In this way, we performed an extension study to determine its local (Morrinhos) and regional (latitudinal transect) occurrence. We also investigated if the spider uses the host ant as a feeding source. For this, we established arenas with a known number of young and adult ant individuals plus one spider and observed the feeding rate for some determined time. Regarding local distribution, differently from most socially parasitic myrmecophiles, A. lavape showed high local infestation, being found in 47% of the colonies in the sites where the spider occurred, and high transmission, being found in 42% of the 12 collection sites. Regionally, among the 11 study sites, this species only occurred in the municipality of Morrinhos, but its distribution still needs to be verified in the north region. Attacobius lavape consumed eggs, larvae and pupae, confirming that the myrmecophily was explained by myrmecophagy. The spiders consumed eggs (not estimated), 4.45 ± 2.14 larvae and/or 3 ± 0.87 pupae per day. Considering that the mean abundance was approximately seven spiders per colony (extent 1-23), we foresee an impact of 35 larvae and/or 21 pupae consumed per day in each hosting colony. The possibility of consuming sexual eggs, larvae and pupae classifies A. lavape as a potential agent of biological control of S. saevissima.
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Mattson, David J. « Myrmecophagy by Yellowstone grizzly bears ». Canadian Journal of Zoology 79, no 5 (1 mai 2001) : 779–93. http://dx.doi.org/10.1139/z01-034.

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I used data collected during a study of radio-marked grizzly bears (Ursus arctos horribilis) in the Yellowstone region from 1977 to 1992 to investigate myrmecophagy by this population. Although generally not an important source of energy for the bears (averaging <5% of fecal volume at peak consumption), ants may have been an important source of protein during midsummer and were heavily consumed during some years. Myrmecophagy was most common annually when known high-quality foods were scarce, as well as during the warmest months of the study, when regional average temperatures exceeded 12–15°C. Bears tended to select large ants (>8 mm long) nested in logs over small ants ([Formula: see text]6 mm long) nested under stones. Optimal conditions for consumption of ants occurred on the warmest sites with ample substrate suitable for ant nests. For ants in mounds, this occurred at low elevations at non-forested sites. For ants in logs, this occurred at low elevations or on southerly aspects where there was abundant, large-diameter, well-decomposed woody debris under an open forest canopy. Grizzly bears selected moderately decomposed logs 4–5 dm in diameter at midpoint. Ants will likely become a more important food for Yellowstone's grizzly bears as currently important foods decline, owing to disease and warming of the regional climate.
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Vantaux, Amélie, Olivier Roux, Alexandra Magro, Nathan Tene Ghomsi, Robert D. Gordon, Alain Dejean et Jérôme Orivel. « Host-Specific Myrmecophily and Myrmecophagy in the Tropical Coccinellid Diomus thoracicus in French Guiana ». Biotropica 42, no 5 (13 janvier 2010) : 622–29. http://dx.doi.org/10.1111/j.1744-7429.2009.00614.x.

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WUNDERLICH, JÖRG. « Spatiator martensi n. sp., a second species of the extinct spider family Spatiatoridae in Eocene Baltic amber (Araneae) ». Zootaxa 1325, no 1 (28 septembre 2006) : 313. http://dx.doi.org/10.11646/zootaxa.1325.1.19.

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Spatiator martensi n. sp. (Araneae: Spatiatoridae) is described from the Early Tertiary Baltic amber forest. It is the second known species of this extinct family of spiders. Ants as syninclusions point to a possible ant mimicry or myrmecophagy.
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Zhang, Fuhua, Na Xu, Wenhua Wang, Yishuang Yu et Shibao Wu. « The gut microbiome of the Sunda pangolin (Manis javanica) reveals its adaptation to specialized myrmecophagy ». PeerJ 9 (2 juin 2021) : e11490. http://dx.doi.org/10.7717/peerj.11490.

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Background The gut microbiomes of mammals are closely related to the diets of their hosts. The Sunda pangolin (Manis javanica) is a specialized myrmecophage, but its gut microbiome has rarely been studied. Methods Using high-throughput Illumina barcoded 16S rRNA amplicons of nine fecal samples from nine captive Sunda pangolins, we investigated their gut microbiomes. Results The detected bacteria were classified into 14 phyla, 24 classes, 48 orders, 97 families, and 271 genera. The main bacterial phyla were Firmicutes (73.71%), Proteobacteria (18.42%), Actinobacteria (3.44%), and Bacteroidetes (0.51%). In the PCoA and neighbor-net network (PERMANOVA: pangolins vs. other diets, weighted UniFrac distance p < 0.01, unweighted UniFrac distance p < 0.001), the gut microbiomes of the Sunda pangolins were distinct from those of mammals with different diets, but were much closer to other myrmecophages, and to carnivores, while distant from herbivores. We identified some gut microbiomes related to the digestion of chitin, including Lactococcus, Bacteroides, Bacillus, and Staphylococcus species, which confirms that the gut microbiome of pangolins may help them to digest chitin. Significance The results will aid studies of extreme dietary adaption and the mechanisms of diet differentiation in mammals, as well as metagenomic studies, captive breeding, and ex situ conservation of pangolins.
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Sommer, Volker, Umaru Buba, Gonçalo Jesus et Alejandra Pascual-Garrido. « Sustained myrmecophagy in Nigerian chimpanzees : Preferred or fallback food ? » American Journal of Physical Anthropology 162, no 2 (25 octobre 2016) : 328–36. http://dx.doi.org/10.1002/ajpa.23122.

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Giannotti, Edilberto. « Notes on the nesting and prey capture habits of Corythalia conferta (Araneae : Salticidae) in urban area ». Brazilian Journal of Science 1, no 10 (1 octobre 2022) : 37–41. http://dx.doi.org/10.14295/bjs.v1i10.173.

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This study adds data on nesting habits and confirms the tendency of myrmecophagy of the newly described Salticidae spider species, Corythalia conferta. One spider was observed living inside a pot built by the wasp Zeta argillacea (Hymenoptera: Vespidae: Eumeninae). Another used one of the chambers of a tubular clay nest (“organ tube”), of a Trypoxylon sp. wasp (Hymenoptera: Crabronidae). It can also take shelter in any available cavity.
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Thèses sur le sujet "Myrmecophagy"

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Knight, Richard Eldon. « Effects of clearcut logging on buffaloberry (Shepherdia canadensis) abundance and bear myrmecophagy in the Flathead River drainage, British Columbia ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ40072.pdf.

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Albuquerque, Luíza Lucena de. « Ultrassonografia abdominal de tamanduás-bandeira (Myrmecophaga tridactyla) machos e fêmeas ». Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7621.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The giant anteater (Myrmecophaga tridactyla) is a wild mammal of the superorder of Xenarthras, native to Central and South America, which is currently classified as vulnerable in the list of endangered species. A fact that can have as causes, from the territorial advance of the agricultural activities to the constructions of roads and fires. Scientific research is of great importance for the conservation of species included in this list and there is a dearth of data about the anteater. Among these information to be collected, there is little information about ultrasound examination in this species. The absence of a reference standard for performing and evaluating ultrasonographic examination for specific species may limit the application of this test and disrupt the establishment of an accurate diagnosis. For these reasons, the aim of this study was to establish a reference standard for the ultrasonographic evaluation of the abdomen of male and female giant anteaters. For this, 10 adult animals, five females and five males, clinically healthy, were used from the Fundação Jardim Zoológico de Brasília. The animals were anesthetized using the Foundation's own protocol, the animals were placed in dorsal decubitus position, and then a wide tricotomy of the abdomen was performed to allow abdominal scanning. The visible structures were established in the abdominal ultrasound examination of the anteaters, have also been established: topographic position, anatomical relationships, ecotexture and echogenicity of: urinary vesicle, uterus, testes, kidneys, spleen, liver, stomach and intestines. It has also been described the presence of alterations in some animals, such as: an animal with intrauterine fluid; an animal with hepatomegaly; an animal with splenomegaly; and thre animals with abdominal fluid. It has been verified that the abdominal ultrasound examination of anteater can be performed according to what is already recommended for dogs and cats and its evaluation and interpretation can be compared with the examinations of domestic mammals as well as descriptions already documented in other species of mammals Wild.
O tamanduá-bandeira (Myrmecophaga tridactyla) é uma mamífero silvestre, da superordem Xenarthras, nativo das Américas Central e do Sul e que está, atualmente, classificado como vulnerável na lista de espécies ameaçadas de extinção, fato que pode ter como causas, desde o avanço territorial das atividades agropecuárias às construções de estradas e queimadas Pesquisas científicas são de suma importância para a conservação de espécies inclusas nessa lista e existe uma escassez de dados acerca dos tamanduás-bandeira. Dentre essas informações a serem coletadas, existem poucas informações acerca do exame ultrassonográfico nesta espécie. A ausência de um padrão de referência para a realização e avaliação do exame ultrassonográfico para espécies específicas pode limitar a aplicação deste exame e impedir o estabelecimento de um diagnóstico preciso. Por estes motivos, objetivou-se nesse estudo estabelecer um padrão de referência para a avaliação ultrassonográfica do abdômen de tamanduás-bandeira machos e fêmeas. Para isso, foram utilizados 10 animais adultos, cinco fêmeas e cinco machos, clinicamente saudáveis, provenientes da Fundação Jardim Zoológico de Brasília. Os animais foram anestesiados utilizando protocolo da própria Fundação, os animais foram posicionados em decúbito dorsal e, em seguida, foi realizada a tricotomia ampla do abdômen para possibilitar a varredura abdominal. Foram estabelecidas as estruturas visíveis no exame ultrassonográfico abdominal dos tamanduás, bem como descritas: posição topográfica, relações anatômicas, ecotextura e ecogenicidade de vesícula urinária, útero, testículos, rins, baço, fígado, estômago e alças intestinais. Também foi descrita a presença de alterações em alguns animais, como: líquido intra-uterino; hepatomegalia; esplenomegalia; líquido-livre abdominal. Verificou-se que o exame ultrassonográfico abdominal de tamanduás-bandeira pode ser realizado segundo o que já é preconizado para cães e gatos e sua avaliação e interpretação podem ser comparadas tanto com os exames de mamíferos domésticos quanto com descrições já documentadas em outras espécies de mamíferos silvestres.
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Mendonça, Marco Antonio Carstens. « Análise descritiva do perfil espermático do tamanduá-bandeira (Myrmecophaga tridactyla Linnaeus, 1758) de cativeiro ». Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/10/10131/tde-03022011-150928/.

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O objetivo do presente estudo é descrever as características físicas, químicas, morfológicas e funcionais do sêmen do tamanduá-bandeira (Myrmecophaga tridactyla) em cativeiro. Estes resultados representam um dos primeiros requisitos para o conhecimento das características seminais da espécie, visando, em médio prazo, a aplicação de técnicas de reprodução assistida e a formação de bancos de germoplasma. Treze animais foram submetidos à colheita de sêmen em zoológicos no estado de São Paulo Brasil. O método para colheita de sêmen foi a eletroejaculação, semelhante ao realizado em várias espécies silvestres e domésticas, resultando em onze amostras colhidas de nove indivíduos (69,23%). Os testes convencionais indicaram um volume médio de 1,30 ± 0,58 ml, a motilidade média de 33,18 ± 20,14%, o vigor médio de 2,30 ± 0,65, a concentração média de 129,41 ±114,3 x 106 / cm3, o pH médio de 7,44 ± 0,60. A avaliação morfológica apresentou média de defeitos totais de 64,53 ± 19,97%, defeitos maiores 53,77 ± 33,22% e defeitos menores 10,75 ± 6,23%. Nos testes funcionais, a avaliação da integridade da membrana acrossomal mostrou uma média de 16,3 ± 9,3% de danificadas. A avaliação da integridade da membrana plasmática mostrou uma média de 18,9 ± 12,2% de danificadas. A avaliação da atividade mitocondrial revelou as seguintes médias: Classe I = 66,4 ± 19,0%; Classe II = 18,7 ± 9,1%; Classe III = 8,0 ± 6,3%; Classe IV = 3,9 ± 3,1% e Classe V = 3,0 ± 2,9%. A avaliação da fragmentação de cromatina resultou em uma média de 13,21 ± 9,13%. Conclusão: foi demonstrada a aplicabilidade da eletroejaculação na colheita de sêmen de tamanduás-bandeira. Os testes possibilitaram uma análise detalhada das características seminais da espécie, aspectos estes ainda inéditos na literatura mundial. Houve grande variação nos resultados obtidos, refletindo diferenças das condições de manejo e de idade entre os indivíduos e, possivelmente um baixo número amostral estudado. Novos estudos devem ser realizados em animais de vida livre.
The purpose of the present study was to describe the physical, chemical, morphological, and functional features of semen collected from Giant Anteaters (Myrmecophaga tridactyla) raised in captivitya first step toward the feasibility of assisted reproduction techniques and germplasm banks for this species in the mid-term future. Electroejaculation, a method currently applied to a number of wild and domestic species, was performed in 13 animals housed in zoos located in the state of São Paulo, Brazil, yielding 11 samples from 9 animals (69.23%). The following mean values were obtained: volume, 1.30 ± 0.58 mL; motility, 33.18 ± 20.14%; vigor, 2.30 ± 0.65; concentration, 129.41 ± 114.3 x 106 cm-3; pH, 7.44 ± 0.60. Major and minor defects accounted for 53.77 ± 33.22% and 10.75 ± 6.23% of the total, respectively (mean total defect rate, 64.53 ± 19.97%). Damage was found in 16.3 ± 9.3% of acrosomal membranes and 18.9 ± 12.2% of plasma membranes. Mitochondrial activity, categorized as Classes I through V, was 66.4 ± 19.0%, 18.7 ± 9.1%, 8.0 ± 6.3%, 3.9 ± 3.1%, and 3.0 ± 2.9%, respectively. Chromatin fragmentation rate was 13.21 ± 9.13%. Conclusion: The study demonstrated the feasibility of applying electroejaculation to Giant Anteaters for semen collection, allowing for a detailed description of semen features previously unreported for this species. The large variation found in the results reflects differences in management conditions, age range, and possibly the small number of sampled animals, thus warranting further studies with free-ranging specimens.
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Iglesias, Luciana Pedrosa. « Morfologia macro e microscópica do pâncreas de tamanduá-bandeira (Myrmecophaga tridactyla, Linnaeus 1758) ». Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-24032015-150610/.

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O tamanduá-bandeira Myrmecophaga tridactyla é uma espécie considerada “vulnerável” no Brasil, por estar ameaçado de extinção em algumas regiões do país. O presente projeto teve por objetivo identificar e caracterizar as estruturas macro e microscópicas do pâncreas nessa espécie. Para tanto, foram dissecados 16 pâncreas de tamanduás-bandeira provenientes do Hospital Veterinário “Dr. Halim Atique” do Centro Universitário de Rio Preto (UNIRP). As amostras coletadas, foram provenientes de casos de animais atendidos no referido Hospital e que vieram a óbito. O pâncreas situava-se no antímero esquerdo do corpo do animal, apresentava coloração pálida, corpo central e superfície lobulada. Acompanhava a curvatura ventricular maior do estomago aderindo-se na porção inicial do duodeno. Relaciona-se crâniodorsalmente com o baço e ventrículo gástrico, e caudoventralmente com a cápsula fibrosa renal (que aloja o rim esquerdo) e intestinos. Estruturalmente, o órgão demonstrou duas partes distintas: a primeira delas com características exócrinas, composta por ácinos pancreáticos e a segunda endócrina, formada pelas ilhotas pancreáticas encontradas nas regiões media, caudoventral e lobar esquerda. A analise ultraestrutural permitiu identificar nas células centro-acinosas do pâncreas vesículas com grânulos de zimogênio, mitocôndrias, Aparelho de Golgi e retículo endoplasmático rugoso
The giant anteater Myrmecophaga tridactyla is a species considered 'vulnerable' in Brazil since it is threatened in some Brazilian regions. This study aimed to identify and characterize morphological structures of the pancreas in this species. For this, 16 anteaters pancreas from the Veterinary Hospital "Dr. Halim Atique at University Center of Rio Preto (UNIRP), were dissected. All samples were from animals treated at the hospital which died of natural causes. The pancreas was located in the left antimere of the animal’s body, being lobulated and having a pale color and central body. It followed the greater curvature of the stomach, adhering on the initial portion of the duodenum. It was craniodorsally related to the spleen and gizzard, and caudoventrally to the renal fibrous capsule (which houses the left kidney) and intestines. Structurally, the organ had two distinct parts: an exocrine, composed of pancreatic acini; and and endocrine, formed by pancreatic islets found in the medial, caudoventral and left lobar regions. The ultrastructural analysis allowed identifying the central-acinar pancreatic cells with vesicles zymogen granules, mitochondria, Golgi apparatus and rough endoplasmic reticulum
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Menezes, Lorena Tannús. « Morfologia do tubo digestório do tamanduá bandeira Myrmecophaga tridactyla (Pilosa : Myrmecophagidae) ». Universidade Federal de Uberlândia, 2013. https://repositorio.ufu.br/handle/123456789/13057.

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This study described morphological aspects of the digestive tract of the giant anteater (Myrmecophaga tridactyla), five specimens were used, belonging to the collection of the Laboratório de Ensino e Pesquisa em Animais Silvestres in UFU, were processed by usual methods of macroscopic anatomical, histological and scanning electron microscope (SEM) analysis. The esophagus is a narrow tube that goes straight in the thoracic cavity. The stomach has the shape of the letter J, have the cardiac, fundic, corpus and pyloric regions. The small intestine is long, has a duodenum, jejunum and ileum. The large intestine is short, consisting of ascending colon, transverse colon, descending colon, rectum and anus. The lining epithelial of the esophagus is stratified squamous, non-glandular; and scanning electron microscopic examination of the esophagus is smooth and pleated. Stomach is simple prismatic relatively low, with shallow crypts; and rough surface. In the small intestine is simple prismatic, the duodenum has goblet cells, a huge amount of Paneth cells, the jejunum has an increase of Paneth cells, the ileum has a few Paneth cells and an increase of goblet cells; and villous surface; the large intestine is simple prismatic, an increase goblet cells; and smooth surface with openings of intestinal crypts.
Este estudo descreveu aspectos morfológicos do tubo digestório de Myrmecophaga tridactyla, foram utilizados cinco espécimes, pertencentes ao acervo do Laboratório de Ensino e Pesquisa em Animais Silvestres da UFU e foram processados conforme métodos rotineiros de análise anatômica macroscópica, histologia e microscopia eletrônica de varredura. O esôfago é um tubo estreito que percorre a cavidade torácica sem angulações. O estômago possui o formato da letra J, com regiões cárdica, fúndica, do corpo e pilórica. O intestino delgado é longo, possui um duodeno, jejuno e íleo. O intestino grosso é curto, formado por colón ascendente, cólon transverso, cólon descendente, reto e ânus. O epitélio de revestimento do esôfago é estratificado pavimentoso, aglandular; e a análise microscópica eletrônica de varredura do esôfago é superfície lisa com pregas. No estômago é simples prismático mucíparo, relativamente baixo, com criptas rasas; e superfície rugosa. No intestino delgado é simples prismático; no duodeno tem células caliciformes e uma enorme quantidade de células de Paneth, no jejuno aumento das células de Paneth, no íleo poucas células de Paneth e aumento das células caliciformes; e superfície com vilos; no intestino grosso é simples prismático, aumento da quantidade das células caliciformes; e superfície lisa com aberturas das criptas intestinais.
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Ferrari, Vinícius Matheus. « Isolamento e caracterização genética de Toxoplasma gondii em Myrmecophaga tridactyla (Linnaeus, 1758) / ». São José do Rio Preto, 2016. http://hdl.handle.net/11449/144258.

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Orientador: Lilian Castiglioni
Banca: Débora Aparecida Pires de Campos Zuccari
Banca: Juliana Giantomassi Machado
Resumo: Toxoplasma gondii é um parasito intracelular obrigatório, causador da toxoplasmose, que pode afetar tanto humanos, quanto um vasto número de espécies animais de sangue quente. Nos animais silvestres a infecção por T. gondii é bastante comum e vários estudos da literatura têm demonstrado sua ocorrência em diferentes organismos. Contudo, o conhecimento da história natural da maioria das zoonoses parasitárias na América do Sul ainda é pouco compreendido tanto nos humanos quanto nos animais. Particularmente, nos animais, a dificuldade na obtenção de amostras e o conhecimento insuficiente da biologia, ecologia e comportamento limitam estas pesquisas. Assim, o presente estudo objetivou isolar e caracterizar geneticamente (PCR-RFLP) o parasito T. gondii em amostras de tamanduá- bandeira (Myrmecophaga tridactyla), um importante animal silvestre da nossa região. As amostras biológicas de sangue (e tecidos, apenas dos animais que vieram a óbito) de M. tridactyla foram coletadas no SACCAS/Hospital Veterinário "Dr. Halim Atique", após terem sido vítimas de queimadas ou atropelamentos. As amostras foram analisadas no Laboratório de Imunogenética em parceria com o Laboratório de Virologia, ambos da FAMERP, e também com o Laboratório de Doenças Parasitárias, da Faculdade de Medicina Veterinária e Zootecnia da USP. O Teste de Aglutinação Modificada (MAT) foi realizado em 23 indivíduos da espécie para a tentativa de detecção de anticorpos anti-T. gondii em suas amostras sorológicas. Para a tentativa de isolamento do T. gondii, amostras teciduais de tamanduá- bandeira foram processadas (digestão péptica) e inoculadas em camundongos da linhagem Balb/c. Entre as 23 amostras sorológicas analisadas, foi constatada a presença de anticorpos anti-T. gondii em amostras de 13 indivíduos (56,52%). O isolamento do parasito foi realizado a partir de amostras...
Abstract: Toxoplasma gondii is an obligate intracellular parasite that causes toxoplasmosis, which can affect both humans and a large number of warm-blooded animal species. In wild animals, T. gondii infection is quite common and many published studies have demonstrated its occurrence in different organisms. However, the knowledge of the natural history of most parasitic zoonoses in South America is poorly understood both in humans and animals. Particularly, in animals, the difficulty in obtaining samples and the insufficient knowledge of the biology, ecology and behavior limit these researches. Thus, this study aimed to isolate and characterize genetically (PCR-RFLP) the T. gondii parasite in giant anteater (Myrmecophaga tridactyla) samples, an important wild animal is our region. Biological samples of M. tridactyla blood (and tissues, only from animals that died) were obtained in SACCAS/Veterinary Hospital "Dr. Halim Atique" after they have been victims of fires or roadkill. The samples were analyzed in Immunogenetics Laboratory in partnership with the Virology Laboratory, both of FAMERP, and also with the Parasitc Diseases Laboratory, Faculty of Veterinary Medicine and Animal Science at USP. The Modified Agglutination Test (MAT) was carried out in 23 individuals of the species to attempt detection of anti-T. gondii in their serum samples. In an attempt to isolate T. gondii, tissue samples of giant anteater were processed (peptic digest) and inoculated into Balb/c lineages mice. Among the 23 serum samples analyzed, it was found the presence of antibodies to anti-T.gondii in samples of 13 individuals (56,52%). The isolation of the parasite was performed from tissues samples from 1 individual, among 7 animals of the species that died (14,28%), and this mouse also presented reagent sorology. The isolation of T. gondii is unprecedented in this animal and has high clinical relevance ...
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Luba, Camila do Nascimento [UNESP]. « Características seminais e resfriamento de sêmen de tamanduá (Myrmecophaga tridactyla) de vida livre ». Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/123796.

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Made available in DSpace on 2015-06-17T19:33:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-08-29. Added 1 bitstream(s) on 2015-06-18T12:47:43Z : No. of bitstreams: 1 000831031.pdf: 2511455 bytes, checksum: 5ffd0294e34ec2c25575109974ce6b2c (MD5)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
O tamanduá-bandeira (Myrmecophaga tridactyla) é considerado vulnerável à extinção e dados científicos em relação à andrologia e características seminais são escassos. Colheu-se sêmen de oito animais com o intuito de estabeler parâmetros seminais de tamanduás-bandeira de vida livre no que se refere a volume, odor, coloração, motilidade, vigor, concentração e morfologia espermática, e investigar o tempo em que o sêmen mantém-se com motilidade e vigor sob refrigeração à 5ºC. A motilidade e vigor espermáticos foram avaliados de forma subjetiva por microscopia óptica convencional, e a análise morfológica dos espermatozoides foi realizada por microscopia de luz, microscopia de contraste e interferência diferencial e microscopia eletrônica de transmissão. O ejaculado foi caracterizado com duas frações distintas (fração esbranquiçada, leitosa e rica em células espermáticas, e fração gel, incolor e viscosa com ausência de espermatozoides) e volume médio 0,75 ml (±0,13). Os valores médios dos parâmetros (± erro padrão) encontrados nas amostras seminais à fresco foram motilidade 75% (±2,98), vigor 3,21(±0,29), concentração 108,5 x106/ml (±13,46), índice de integridade de membrana plasmática de 71% (±4,01), anormalidades espermáticas em coloração karras-modificado 35,5% (±3,38) e 48,37% (±6,83) em microscopia de contraste de interferência diferencial. Quando submetido a refrigeração o sêmen apresentou motilidade e vigor até no máximo 24 horas, com valores decrescentes em ambos os parâmetros com o decorrer do tempo
The giant anteater (Myrmecophaga tridactyla) is considered vulnerable to extinction and scientific data regarding andrology and seminal characteristics are scarce. The semen were collected from eight animals with the intention of seminal parameters to establish anteaters free life as regards the volume, odor, color, motility, vigor, concentration and morphology, and to investigate the time the semen remains with motility and vigor under refrigeration at a temperature of 5 ° C. The sperm motility and vigor were subjectively assessed by light microscopy and morphological analysis of sperm were performed by conventional optical microscopy, differential interference contrast microscopy and transmission electron microscopy. The ejaculate was characterized with two distinct fractions (fraction whitish, milky and rich in sperm cells, and gel fraction colorless and viscous with absence of sperm) and average volume 0.75 ml (± 0.13). The mean values of the parameters (± standard error) found in the fresh semen samples motility were 75% (± 2.98), vigor 3.21 (± 0.29), concentration x106/ml 108.5 (± 13.46), index of plasma membrane integrity of 71% (± 4.01) and sperm abnormalities in karras-modified staining 35.5% (± 3.38) and 48.37% (± 6.83) in contrast microscopy differential interference. When subjected to cooled semen presented motility and vigor up to 24 hours, with decreasing values in both parameters over time
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Luba, Camila do Nascimento. « Características seminais e resfriamento de sêmen de tamanduá (Myrmecophaga tridactyla) de vida livre / ». Botucatu, 2014. http://hdl.handle.net/11449/123796.

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Orientador: João Carlos Pinheiro Ferreira
Banca: Fernanda da Cruz Landim Alvarenga
Banca: Marcelo Alcindo de Vaz Barros Gumarães
Resumo: O tamanduá-bandeira (Myrmecophaga tridactyla) é considerado vulnerável à extinção e dados científicos em relação à andrologia e características seminais são escassos. Colheu-se sêmen de oito animais com o intuito de estabeler parâmetros seminais de tamanduás-bandeira de vida livre no que se refere a volume, odor, coloração, motilidade, vigor, concentração e morfologia espermática, e investigar o tempo em que o sêmen mantém-se com motilidade e vigor sob refrigeração à 5ºC. A motilidade e vigor espermáticos foram avaliados de forma subjetiva por microscopia óptica convencional, e a análise morfológica dos espermatozoides foi realizada por microscopia de luz, microscopia de contraste e interferência diferencial e microscopia eletrônica de transmissão. O ejaculado foi caracterizado com duas frações distintas (fração esbranquiçada, leitosa e rica em células espermáticas, e fração gel, incolor e viscosa com ausência de espermatozoides) e volume médio 0,75 ml (±0,13). Os valores médios dos parâmetros (± erro padrão) encontrados nas amostras seminais à fresco foram motilidade 75% (±2,98), vigor 3,21(±0,29), concentração 108,5 x106/ml (±13,46), índice de integridade de membrana plasmática de 71% (±4,01), anormalidades espermáticas em coloração karras-modificado 35,5% (±3,38) e 48,37% (±6,83) em microscopia de contraste de interferência diferencial. Quando submetido a refrigeração o sêmen apresentou motilidade e vigor até no máximo 24 horas, com valores decrescentes em ambos os parâmetros com o decorrer do tempo
Abstract: The giant anteater (Myrmecophaga tridactyla) is considered vulnerable to extinction and scientific data regarding andrology and seminal characteristics are scarce. The semen were collected from eight animals with the intention of seminal parameters to establish anteaters free life as regards the volume, odor, color, motility, vigor, concentration and morphology, and to investigate the time the semen remains with motility and vigor under refrigeration at a temperature of 5 ° C. The sperm motility and vigor were subjectively assessed by light microscopy and morphological analysis of sperm were performed by conventional optical microscopy, differential interference contrast microscopy and transmission electron microscopy. The ejaculate was characterized with two distinct fractions (fraction whitish, milky and rich in sperm cells, and gel fraction colorless and viscous with absence of sperm) and average volume 0.75 ml (± 0.13). The mean values of the parameters (± standard error) found in the fresh semen samples motility were 75% (± 2.98), vigor 3.21 (± 0.29), concentration x106/ml 108.5 (± 13.46), index of plasma membrane integrity of 71% (± 4.01) and sperm abnormalities in karras-modified staining 35.5% (± 3.38) and 48.37% (± 6.83) in contrast microscopy differential interference. When subjected to cooled semen presented motility and vigor up to 24 hours, with decreasing values in both parameters over time
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Souza, Tharlianne Alici Martins de. « Origens, distribuições e ramificações dos nervos femorais no tamanduá bandeira (Myrmecophaga tridactyla Linnaeus, 1758) ». Universidade Federal de Uberlândia, 2012. https://repositorio.ufu.br/handle/123456789/13054.

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The study of the lumbosacral plexus nerves constituents is extremely important because it relates the various evolutionary aspects of animal locomotion and posture. Considering that the femoral nerve is the largest cranial part of the lumbosacral plexus, aimed to describe the origins, distributions and ramifications of the femoral nerve in giant anteater (Myrmecophaga tridactyla), comparing with the literature described for domestic and wild animals in to establish correlations of morphological similarities and providing subsidies for similar areas. For the work three specimens were used prepared by injection of aqueous 10% formaldehyde in the femoral artery, for keeping the specimens and further dissection. The origin of the femoral nerve in the right and left sides, is the ventral brach of the lumbar spinal nerves one, two and three. As to the distributions and ramifications, the femoral nerve provides branches to the major and minor psoas muscle, lateral and medial iliac, pectineus, adductor magnus, sartorius and quadriceps. The anatomical origin of the femoral nerve in M. tridactyla shows a variation due to the difference in the number of vertebrae (L1, L2 and L3). But in most distributions and ramifications of the femoral nerve, this species has a significant degree of morphological similarities with domestic and wild animals in this study.
O estudo dos nervos constituintes do plexo lombossacral é de extrema importância, pois relaciona os diversos aspectos evolutivos de postura e locomoção dos animais. Considerando-se que o nervo femoral é o maior da parte cranial do plexo lombossacral, objetivou-se descrever as origens, distribuições e ramificações dos nervos femorais no Tamanduá bandeira (Myrmecophaga tridactyla), comparando com a literatura descrita para animais domésticos e silvestres, de modo a estabelecer correlações de similaridades morfológicas e fornecer subsídios para as áreas afins. Foram utilizadas três espécimes, preparadas através da injeção de solução aquosa de formaldeído a 10% via artéria femoral, para a conservação e posterior dissecação das mesmas. As origens nos antímeros direito e esquerdo, ocorreram dos ramos ventrais dos nervos espinhais lombares um, dois e três. As distribuições e ramificações foram observadas para os músculos psoas maior e menor, ilíacos lateral e medial, pectíneo, adutor magno, sartório e quadríceps femoral. Com base nas origens dos nervos femorais do M. tridactyla, uma reconfiguração foi observada devido à variação no número de vértebras lombares (L1, L2 e L3). Entretanto, uma similaridade morfológica parcial foi mantida quanto às distribuições e ramificações, quando comparadas aos animais domésticos e silvestres considerados neste estudo.
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Moore, Wendy. « Molecular Phylogenetics, Systematics, and Natural History of the Flanged Bombardier Beetles (Coleoptera : Adephaga : Carabidae : Paussinae) ». Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/194110.

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This dissertation focuses on the systematics of the Paussinae, a lineage of approximately 775 beetle species all of which produce explosive defensive chemicals and many which are obligate associates of ants (myrmecophiles). This dissertation includes six discrete studies, which taken together span the spectrum of systematic research. It includes taxonomic projects on both larval and adult paussines. It also includes phylogenetic investigations, based on DNA sequence data and morphological data, that address the evolutionary relationships among the major lineages within Paussinae as well as the evolutionary position of the Paussinae within the beetle suborder Adephaga. The inferred trees are used to study character evolution of physiological and behavioral traits of these organisms in a phylogenetic framework. This work sets the stage for a lifetime of work on this fascinating group.
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Livres sur le sujet "Myrmecophagy"

1

Glen, Stuart William Thomas. Myrmecophily within the British Lycaenidae (Lepidoptera). Birmingham : University of Birmingham, 1996.

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Antill, Sara. Giant anteater. New York : Windmill Books, 2011.

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Fiedler, Konrad. Systematic, evolutionary, and ecological implications of myrmecophily within the Lycaenidae (Insecta : Lepidoptera : Papilionoidea). Bonn : Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1991.

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Gillenwater, Chadwick. Giant anteaters. Mankato, Minn : Capstone Press, 2012.

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Giant anteater. New York : Windmill Books, 2010.

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Brown, Marc Tolon. D.W. Thinks Big (D. W. Series). Boston : Joy Street Books, 1993.

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Brown, Marc Tolon. D.W. thinks big. Boston : Little, Brown, 1998.

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Aunt Eater Loves a Mystery. New York : Harper & Row, 1987.

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Aunt Eater loves a mystery. [New York] : Harper Trophy, 1989.

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Seiple, Samantha. Giant anteaters. Minneapolis : Lerner Publications Company, 2008.

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Chapitres de livres sur le sujet "Myrmecophagy"

1

Saraiva, J. M. L., A. F. P. De Sousa, G. C. Dos Reis, T. C. De Almeida, F. L. A. Neves et A. G. Carreira. « ABORDAGEM CLÍNICO-TERAPÊUTICO DE TRAUMATISMO CRÂNIO-ENCEFÁLICO EM TAMANDUA-BANDEIRA (MYRMECOPHAGA TRIDACTYLA) – RELATO DE CASO ». Dans ANAIS DO I CONGRESSO TOCANTINENSE DE MEDICINA VETERINÁRIA (I CONTVET) E XV SEMANA ACADÊMICA DE MEDICINA VETERINÁRIA (XV SEMAVET) DA UNIVERSIDADE FEDERAL DO NORTE DO TOCANTINS, 32. Teresina : Wissen Editora, 2024. http://dx.doi.org/10.52832/wed.72.427.

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« myrmecophily, n. » Dans Oxford English Dictionary. 3e éd. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/3033056806.

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« Myrmecophily and ant-plants ». Dans Interrelationship Between Insects and Plants, 141–60. CRC Press, 1998. http://dx.doi.org/10.1201/9781498719360-15.

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« myrmecophagid, n. & ; adj. » Dans Oxford English Dictionary. 3e éd. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/3504325225.

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Fischer, Martin S. « On the position of Proboscidea in the phylogenetic system of Eutheria : a systematic review ». Dans The Proboscidea, 35–38. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198546528.003.0005.

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Abstract The systematic position of Proboscidea is an example of continuity in mammalian classification. Disregarding any systematic schools, Proboscidea is usually classified as belonging to an independent unit within placental mammals, and almost since early systematic studies, its proximity to sirenians has been postulated. Even in the intuitive system of Linnaeus (1 758), the ‘Ordo Bruta’ comprises among others (e.g. Bradypus, Myrmecophaga, or Manis) Elephas and Trichechus.
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Cazati, Lucas, Fabiana Barreto Novaes e. Silva, Fernanda Cristina Jacoby, Mariana dos Santos Ramos, Thyara de Deco Souza e. Araujo et Gilberto Gonçalves Facco. « MACROSCOPIC FINDINGS OF INJURIES BY FIRE IN GIANT ANTEATER (myrmecophaga tridactyla) ». Dans Ecologia e Conservação, 127–29. Atena Editora, 2021. http://dx.doi.org/10.22533/at.ed.04521090212.

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Nakayama, Yu, Daisuke Kohari, Takashi Kimura, Eri Okuyama et Michiko Kasahara. « Behavior difference of giant anteaters (Myrmecophaga tridactyla) kept under the same captive condition ». Dans Proceedings of the 49th Congress of the International Society for Applied Ethology, 151. Brill | Wageningen Academic, 2015. http://dx.doi.org/10.3920/9789086868179_114.

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Storch, Gerhard. « ‘Grube Messel’ and African–South American faunal connections ». Dans The Africa—South America Connection, 76–86. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198545774.003.0006.

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Abstract The fossil record of the European Early Tertiary includes various terrestrial vertebrates which are most unexpected and of an ‘exotic’ appearance palaeobiogeographically. Outside Europe, they are known in the late Cretaceous and the Cenozoic of West Gondwanaland, in particular of South America, but they are unknown in the Late Cretaceous and the Early Tertiary of North America. The presence of these vertebrates thus suggests former land connections between Africa and South America and a crossing of the marine Tethys barrier between Africa and Europe by terrestrial routes. European palaeofaunas might, therefore, contribute to an understanding of African-South American faunal relationships. These groups are: ceratophryine anurans (Rage 1981), ziphodont mesosuchian crocodiles (Buffetaut 1988), struthioniform birds (ratites) (Houde 1986; Peters 1988a), phorusrhacid birds (Mourer-Chauvire 1981; Peters 1987), and myrmecophagid edentates (anteaters) (Storch 1981). Cariamid birds (seriemas) (Mourer-Chauvire 1983; Peters 1988b, and didelphid marsupials can be added (Crochet and Sige 1983; Von Koenigswald and Storch 1988), but unlike the preceding taxa they are also known as Early Tertiary fossils in North America.
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Andrade, Felipe José da Costa, Andrea Moura de Camargo, Jhonatan Henrique Lima da Rocha, Gabriel Vinícius Carvalho de Lucena, Gilmara Miguel Souza, Aksa Ingrid Vieira Batista, Marina Neves de Assis Aguiar et Raphaela Bueno Mendes Bittencourt. « DIVERSIDADE ALIMENTAR DA DIETA DE Myrmecophaga tridactyla e Tamandua tetradactyla DE VIDA LIVRE NO BRASIL – REVISÃO SISTEMÁTICA ». Dans Multiplicidade das ciências veterinárias na atualidade, 24–25. Editora In Vivo, 2021. http://dx.doi.org/10.47242/978-65-993899-4-88.

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Silva, Christian Lucas Américo da, Danilo Lourenço de Brito, Fernanda Barros Passaglia, Luísa Gonçalves Leandro dos Santos, Lana Cristina Evangelista Ferreira Sá, Nathália Carvalho de Araújo, Nathália Evangelista dos Santos, Lara Marina Evangelista Ferreira Sá et Eleuza Rodrigues Machado. « ANÁLISE DOS REGISTROS DE TAMANDUÁ-BANDEIRA (Myrmecophaga tridactyla Linnaeus, 1758) OBTIDOS POR CÂMERAS TRAP NA FAZENDA VEREDAS DO CERRADO, MUNICÍPIO DE BURITIS, MINAS GERAIS, BRASIL ». Dans Zoologia : Panorama atual e desafios futuros 2, 18–26. Atena Editora, 2022. http://dx.doi.org/10.22533/at.ed.6272217083.

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Actes de conférences sur le sujet "Myrmecophagy"

1

Chatzimanolis, Stylianos. « Myrmecophily in xanthopygine rove beetles (Coleoptera : Staphylinidae) ». Dans 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105423.

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Lima, Isadora De Sousa, Nathany Geraldino Nogueira, Fernanda Lima De Moura Rocha, Ana Carolyne Borges de Oliveira, Jessica Rocha Gonçalves et Bruno Jardim De Paiva e. Riccioppo. « Relato de caso : Transfusão Sanguínea em Tamanduá-bandeira (Myrmecophaga tridactyla) ». Dans III Wildlife Clinic Congress. Congresse.me, 2022. http://dx.doi.org/10.54265/nztv6576.

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Luna, Hélder Silva e., FERNANDO CARLOS MORAES DE OLIVEIRA JUNIOR, LARA YASSUKO NAKAMURA, JÚLIA VITÓRIA RISCALLI MOTA GIMENEZ et GEOVANA PEREIRA DE CARVALHO. « PESQUISAS SOBRE A PRESENÇA DE CARRAPATOS EM TAMANDUÁ-BANDEIRA (MYRMECOPHAGA TRIDACTYLA) ». Dans IV Congresso Brasileiro de Ciências Biológicas On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2023. http://dx.doi.org/10.51189/conbracib2023/17891.

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Minto, B., T. Magalhães, D. de Lucena, I. Soriano, G. Barranco, L. Dias et K. Werther. « Use of Robust Fixation in Giant Anteater (Myrmecophaga tridactyla)—Report of Four Fractures ». Dans Abstracts of the 6th World Veterinary Orthopedic Congress. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1758322.

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Glazunova, E., A. Kozyreva et L. Ledneva. « Identification of stereotypical behavior of the giant anteater Myrmecophaga tridactyla in the Kaliningrad Zoo ». Dans ChemBioSeasons 2022. Kemerovo State University, 2022. http://dx.doi.org/10.21603/chembioseasons2022-9.

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Magalhães, T. V., B. W. Minto, F. S. Oliveira et L. G. G. G. Dias. « An Anatomical Study of the Thoracic Limb of the Giant Anteater (Myrmecophaga tridactyla) Compared to the Domestic Dog : A Surgical Guide for Approaching the Humerus and Radius ». Dans Abstracts of the 50th Annual Conference of the Veterinary Orthopedic Society. Georg Thieme Verlag KG, 2023. http://dx.doi.org/10.1055/s-0043-1775666.

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Rapports d'organisations sur le sujet "Myrmecophagy"

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Di Blanco, Yamil E., Diego Varela et Agustín M. Abba. Myrmecophaga tridactyla. Categorización 2019 de los mamíferos de Argentina según su riesgo de extinción. Ciudad Autónoma de Buenos aires : Lista Roja de los mamíferos de Argentina, novembre 2019. http://dx.doi.org/10.31687/saremlr.19.032.

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