ライフサイエンスコーパス: tortoise

1 small-bodied Geochelone chilensis, or Chaco tortoise.

2 igns suggesting a unique representation of a tortoise.

3 ct: Chelonoidis elephantopus or the Floreana tortoise.

4 is an etiologic agent of URTD in the gopher tortoise.

5 olated from the nares of at least 50% of the tortoises.

6 a higher rate of crossing than in simulated tortoises.

7 shallow and resembled those among Galapagos tortoises.

8 iconic yet poorly understood Galapagos giant tortoises.

9 even different movement metrics of Galapagos tortoises.

10 rally infected and uninfected captive desert tortoises.

11 ive large-bodied frugivores, including giant tortoises.

12 ered on large game and was supplemented with tortoises.

13 was used as the cutoff for seropositivity in tortoises.

14 private and zoo collections of Mediterranean tortoises.

15 Giant tortoises, a prominent symbol of the Galapagos archipela

16 ests and roosts, and obtained information on tortoise abundance and population structure and rabbit a

17 tivity, but only if retrofitted to allow for tortoise access and passing.

18 of dispersal events for 631 Galapagos giant tortoises across the volcanoes of Sierra Negra and Cerro

19 present video evidence of a Seychelles giant tortoise (Aldabrachelys gigantea) attacking a tern chick

20 Chelonoidis abingdonii-and the Aldabra giant tortoise (Aldabrachelys gigantea).

21 s of translocating captive-reared non-native tortoises, Aldabrachelys gigantea and Astrochelys radiat

22 We introduced exotic Aldabra giant tortoises, Aldabrachelys gigantea, to disperse the ebony

23 matic hunting of birds by several individual tortoises; an entirely novel behavioural strategy for an

24 n the terrestrial Mediterranean spur-thighed tortoise and compared this to the metabolic cost of loco

25 For example, there should be a "tortoise and hare effect": those genera with the smalles

26 ve that Stammera is a shared symbiont across tortoise and hispine beetles that collectively comprise

27 As in the fable of the tortoise and the hare, the structured population (tortoi

28 was an etiologic agent of URTD in the gopher tortoise and to determine the clinical course of the exp

29 cludes unusually high densities of butchered tortoise and wild cattle remains in two structures, the

30 Our research suggests human exploitation of tortoises and anthropogenic impacts on vegetation contri

31 , we examine survival threats to turtles and tortoises and discuss the interventions that will be nee

32 genomes that includes all lineages of extant tortoises and eight near-complete sequences of all Masca

33 infer the geographic origin of translocated tortoises and found that individual heterozygosity predi

34 n mitochondrial DNA sequences from Galapagos tortoises and Geochelone from mainland South America and

35 her tortoises are similar to those in desert tortoises and include serous, mucoid, or purulent discha

36 xpense of slow-reproducing but easily caught tortoises and marine shellfish and, concurrently, climat

37 ropriate technology, and (ii) they collected tortoises and shellfish less intensively than later peop

38 ntly, climate-independent size diminution in tortoises and shellfish.

39 conservation and revitalization efforts for tortoises and their habitats, here we investigate ninete

40 ecorded the daily locations of 17 GPS-tagged tortoises and walked a monthly survey along the altitudi

41 The orders Testudines (turtles and tortoises) and Crocodilia (crocodiles, alligators, and g

42 ch archipelago sustained only one species of tortoise, and that the taxa currently regarded as distin

43 asize exclusion of livestock, rewilding with tortoises, and expanding the ongoing plantings of Miconi

44 e glomus cells found in amphibians, mammals, tortoises, and lizards.

45 Giant tortoises are among the longest-lived vertebrate animals

46 as beliefs (e.g., "Tortoise breeders believe tortoises are becoming more popular pets"), people consi

47 s presented as unattributed generics (e.g., "Tortoises are becoming more popular pets").

48 METHODOLOGY/PRINCIPAL FINDINGS: Because tortoises are long-lived, late-maturing reptiles, we ass

49 Clinical signs of URTD in gopher tortoises are similar to those in desert tortoises and i

50 Giant tortoises are unlikely candidates for forage-driven migr

51 Further, tortoise-associated isolates (T-AGF) exhibited limited c

52 ear evidence for feasting on wild cattle and tortoises at Hilazon Tachtit cave, a Late Epipaleolithic

53 or MP hominin exploitation of carnivores and tortoises at the site.

54 ith Cylindraspis a deeply divergent clade of tortoises became extinct that evolved long before the do

55 in Panamanian populations of the Neotropical tortoise beetle, Chelymorpha alternans, has been suspect

56 The larva of the tortoise beetle, Hemisphaerota cyanea (Chrysomelidae, Ca

57 f metabolic interactions between herbivorous tortoise beetles and their obligate bacterial symbionts.

58 ates revealed that divergence among Bahamian tortoises began ~ 1.5 mya, whereas divergence among the

59 Tortoises belonging to both clades on Great Abaco and Cr

60 that hominins at least occasionally consumed tortoises, birds, leporids, fish, and carnivores.

61 hen claims were presented as beliefs (e.g., "Tortoise breeders believe tortoises are becoming more po

62 e than claims presented as knowledge (e.g., "Tortoise breeders know..."), as well as claims presented

63 that is distinct among known Galapagos giant tortoises but closely related to the species from Espano

64 ent in seven of nine experimentally infected tortoises by 4 weeks postinfection (p.i.) and in eight o

65 and in eight of nine experimentally infected tortoises by 8 weeks p.i.

66 istory of diversification of giant Galapagos tortoises by using mtDNA sequences from 802 individuals

67 ted to the extinction of the Floreana Island tortoise (C. n.

68 mya, whereas divergence among the Galapagos tortoises (C. niger complex) began ~ 2 mya.

69 Turtles and tortoises (chelonians) are among the most threatened ver

70 Turtles and tortoises (chelonians) have been integral components of

71 omplete mitochondrial genomes of the extinct tortoise Chelonoidis alburyorum from the Bahamas.

72 t produced skeletons of two extinct species (tortoise Chelonoidis undescribed sp. and Caracara Caraca

73 400 years of human exploitation of Galapagos tortoises (Chelonoidis niger ssp.) is the extinction of

74 tion in movement behaviour - giant Galapagos tortoises (Chelonoidis spp.) - to test how movement metr

75 Lonesome George, we sequenced DNA from three tortoises collected on Pinta in 1906.

76 Successful tortoise conservation efforts have focused on species re

77 Isolates from herbivorous tortoises contain higher numbers of plant carbohydrate-m

78 should be retrofitted to allow for periodic tortoise crossings to improve structural connectivity fo

79 Notably, bearded dragons outperformed tortoises, despite their smaller size.

80 e nineteenth and twentieth century Galapagos tortoise dietary ecology using museum and archaeological

81 We identify that Galapagos tortoise diets vary between and within islands over time

82 In tortoises, females surpassed males, highlighting sex-bas

83 ed to the limited dispersal and migration of tortoises following an oceanographic current.

84 haphazard translocations by mariners killing tortoises for food centuries ago that created the unique

85 As humans captured, killed, and/or removed tortoises for food, oil, museums, and zoos, they also co

86 table isotope ecology by using 57 individual tortoises from 10 different subspecies collected between

87 om Crooked Island; the second clade includes tortoises from Great Abaco, Eleuthera, Crooked Island, M

88 rprisingly, we found that these "non-native" tortoises from Isabela are of recent Floreana ancestry a

89 ial control region from six historical giant tortoises from San Cristobal and discovered that the fiv

90 Lonesome George") is very closely related to tortoises from San Cristobal and Espanola, the islands f

91 The extinct tortoises from the Bahamas have two well-supported clade

92 lted from whalers removing many thousands of tortoises from the lowlands.

93 shell reconstructions of 89 Galapagos giant tortoises from three domed and two saddleback species to

94 The inter-island divergences of tortoises from within the Bahamas and within the Galapag

95 te the success of these introductions to the tortoises' generalist diet, habitat requirements, and in

96 A single tortoise (Geochelone carbonaria) was trained in an eight

97 systematics has involved the giant Galapagos tortoises (Geochelone nigra), whose origins and systemat

98 ng disease dynamics in the threatened desert tortoise Gopherus agassizii.

99 er of tortoise species, including the desert tortoise (Gopherus agassizii) and the gopher tortoise (G

100 tortoise (Gopherus agassizii) and the gopher tortoise (Gopherus polyphemus).

101 genomic dataset for 166 translocated desert tortoises (Gopherus agassizii) that either survived or d

102 We GPS-tagged free-ranging Mojave desert tortoises (Gopherus agassizii) to quantify movement beha

103 erse substantial numbers of ebony seeds, but tortoise gut passage also improved seed germination, lea

104 Thus, the tortoise-hare pattern is an indicator of ruggedness.

105 ith a rugged landscape topography, we find a tortoise-hare pattern.

106 We developed Hare And Tortoise (HAT) as an automated DNV detection workflow fo

107 Galapagos giant tortoises have two main shell morphologies - saddleback

108 ) slow animals (a group including crocodile, tortoise, hippopotamus and some babies); (2) normal medi

109 Culture-independent surveys of AGF in tortoises identified a unique community, with three nove

110 Control tortoises in both experiments did not show clinical sign

111 ate the predation impact of golden eagles on tortoises in eagles' territories and in the regional tor

112 Our aims were to 1) describe the role of tortoises in golden eagles' diet, and 2) estimate the pr

113 y more extensive geographical range of giant tortoises in the highlands of Santa Cruz Island.

114 Other tortoises in the same area have been seen making similar

115 Not only did the tortoises ingest the large fruits and disperse substanti

116 The closest living relative to the Galapagos tortoise is not among the larger-bodied tortoises of Sou

117 molecular evolutionary information on giant tortoises is scarce.

118 Finally the tortoise killed the chick and was observed to eat it.

119 Tortoises (land turtles) are familiar animals and are ge

120 nvestigated the obligate partnership between tortoise leaf beetles (Chrysomelidae: Cassidinae) and th

121 The tortoise learned to perform reliably above chance, prefe

122 family members can engage in slow but steady tortoise-like arms races.

123 n extensive comparative study of turtles and tortoises living in zoos and aquariums, we show that ~75

124 Whether this may compromise the spur-thighed tortoise long-term population viability locally deserves

125 converted to Sphagnum bogs concomitant with tortoise loss, subsequently leading to the decline of se

126 and other species, we show that turtles and tortoises may reduce senescence in response to improveme

127 ed that certain species, such as turtles and tortoises, may exhibit slow or even negligible senescenc

128 os), whose breeding habitats overlap that of tortoises, may predate them by dropping them onto rocks

129 and subsequent extinction of large megafauna tortoises (?Meiolania damelipi) on tropical islands duri

130 (ii) is tortoise migration ultimately driven by gradients in for

131 in movement behaviour distinguish Galapagos tortoise movement from previously described partial migr

132 ent behaviors to parameterize simulations of tortoise movement to evaluate alternative culvert design

133 th more uneven surfaces where the saddleback tortoises occur increases their risk to fall on their ba

134 Before humans arrived, giant tortoises occurred on many western Indian Ocean islands.

135 Adult tortoises of both sexes move up and down an altitudinal

136 aracterize the movements and distribution of tortoises of different sizes and sexes.

137 agos tortoise is not among the larger-bodied tortoises of South America but is the relatively small-b

138 The giant tortoises of the Galapagos have become greatly depleted

139 The five extinct giant tortoises of the genus Cylindraspis belong to the most i

140 Furthermore, male Galapagos tortoises on Santa Cruz Island would be unable to grow t

141 relatively simple, tractable system - giant tortoises on Santa Cruz Island, Galapagos, was studied t

142 Notably, three strains from herbivorous tortoises, phylogenetically distant from human subtypes,

143 y short-lived interactions in a free-ranging tortoise population and thus, expect transmission patter

144 ee-nesting tern colony with a resident giant tortoise population has created conditions leading to sy

145 then examined the contact patterns of a wild tortoise population using proximity loggers to identify

146 s in eagles' territories and in the regional tortoise population.

147 sting highway traffic may indirectly depress tortoise populations adjacent to the highway, particular

148 Upland tortoise populations on Santa Cruz declined 500-700 year

149 to help the efforts for restoration of giant tortoise populations.

150 utionarily distinct from all other Galapagos tortoise populations.

151 males in those eagle territories with higher tortoise predation.

152 We observed that visually naive tortoises prefer to approach face-like patterns over alt

153 along with bones of extinct megafauna (giant tortoises, pygmy hippos, and elephant birds), extirpated

154 These large tortoise radiations in the Pacific may have contributed

155 The endangered giant Galapagos tortoises represent a rapid allopatric radiation and fur

156 Inspired by the leopard tortoise's ability to passively reorient, we developed a

157 All of the experimentally infected tortoises seroconverted, and levels of antibody were sta

158 svirus 3 (TeHV-3) causes a lethal disease in tortoises, several species of which are endangered.

159 on for adult female tortoises, which led the tortoise sex ratio to be biased towards males in those e

160 spite of differences in brain structure, the tortoise showed spatial learning abilities comparable to

161 inexperienced hatchlings of five species of tortoises, solitary animals with no parental care.

162 that the seasonal migration of a now-extinct tortoise species to the highlands was curtailed by decre

163 r ecological roles are most obvious in giant tortoise species which, due to their size and local abun

164 ease (URTD) has been observed in a number of tortoise species, including the desert tortoise (Gopheru

165 oduced on Madagascar giant, large, and small tortoise species.

166 tiation between any other congeneric pair of tortoise species.

167 entirely novel behavioural strategy for any tortoise species.

168 agent of a lethal disease affecting several tortoise species.

169 e that the ancestor of the extinct Mascarene tortoises spread from Africa in the Eocene to now-sunken

170 r respiratory tract disease in Mediterranean tortoises [spur-thighed tortoise (Testudo graeca) and He

171 m anthropogenic impacts influenced change in tortoise stable isotope ecology by using 57 individual t

172 ise and the hare, the structured population (tortoise) starts relatively slow but eventually surpasse

173 und that individual heterozygosity predicted tortoise survival, whereas translocation distance or geo

174 n islands, which are often hotter and drier, tortoises tend to consume more C(4) vegetation (cacti an

175 ase in Mediterranean tortoises [spur-thighed tortoise (Testudo graeca) and Hermann's tortoise (Testud

176 The spur-thighed tortoise (Testudo graeca) is a long-lived reptile that i

177 ry control in two reptile species, Hermann's tortoise (Testudo hermanni) and the bearded dragon (Pogo

178 ghed tortoise (Testudo graeca) and Hermann's tortoise (Testudo hermanni)].

179 5 was inoculated intranasally into Hermann's tortoises (Testudo hermanni).

180 ipelago once had one or two species of giant tortoise that were the dominant herbivore.

181 robably reduce the capability of turtles and tortoises to cope with future climate changes.

182 ver the next decades, return C. elephantopus tortoises to Floreana Island to serve as engineers of th

183 We have identified a novel gene, Tortoise (TorA), that is required for the efficient chem

184 We use the case of ploughshare tortoise trafficking to help illustrate the potential of

185 Specifically, we asked: (i) do Galapagos tortoises undergo long-distance seasonal migrations?

186 ith the remains of this distinctive hornless tortoise, unlike the Gondwanan horned meiolaniid radiati

187 The average predation rate on tortoises was very low at the two studied scales.

188 vertebrates, fish, marine birds and mammals, tortoises, waterfowl, and hoofed game-exceeds that of re

189 cological replacements for extinct Mauritian tortoises, we found that releasing small numbers of capt

190 We found that tortoises were an alternative prey to rabbits, so that e

191 Tortoises were inoculated intranasally with 0.5 ml (0.25

192 In the dose-response experiments, tortoises were inoculated intranasally with a low (10(1)

193 Tortoises were most active during mid-day, in warm tempe

194 e observed two highway crossings by a tagged tortoise, which was a higher rate of crossing than in si

195 s showed a marked selection for adult female tortoises, which led the tortoise sex ratio to be biased

196 al was one of the first islands colonized by tortoises, which radiated from there across the archipel

197 We parameterize the model for Galapagos tortoises, which were recently discovered to be size-dep

198 no in the Galapagos Islands hosts many giant tortoises with high ancestry from a species previously d

199 sions were compatible with those observed in tortoises with natural infections.

200 ical signs compatible with those observed in tortoises with natural infections.

201 of an additional lineage of Galapagos giant tortoise would not have been possible, underscoring the