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549 results for “terrestrial isopods”
Fig. 4 in Habitat and seasonal activity patterns of the terrestrial isopods (Isopoda: Oniscidea) of Belgium
Fig. 4. Corrected number of observations per two-month period for Ligidium hypnorum (N = 345).
FIGURE 2 in A remarkably well-preserved terrestrial isopod (Peracarida: Isopoda: Armadillidiidae) from the upper Oligocene of Hungary, with remarks on the oniscidean taphonomy
FIGURE 2. Section exposed at the Wind Brickyard in Eger, Hungary. See text for comments.
Effects of leaf litter traits on terrestrial isopod and millipede consumption, assimilation and growth
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Biodiversity - Fauna - Soil Fauna - Relative frequency of terrestrial isopod species in urban and rural forests
Relative frequency of terrestrial isopod species in urban and rural forests Introduction The Baltimore Ecosystem Study (BES) has established a network of long-term permanent forest plots. These plots will provide long-term data on vegetation, soil and hydrologic processes in the key ecosystem types within the urban ecosystem. The current network of study plots includes eight forest plots, chosen to represent the range of forest conditions in the area. The goal of the soil invertebrate survey was to compare community composition and abundance of soil macrofauna, primarily earthworms (Oligochatea), terrestrial isopods (Isopoda: Oniscidea), and millipedes (Diplopoda). Plot Locations and Characterizations In November of 1998 four rural, forested plots were established at Oregon Ridge Park in Baltimore County northeast of the Gwynns Falls Watershed. Oregon Ridge Park contains Pond Branch, the forested reference watershed for BES. Two of these four plots are located on the top of a slope; the other two are located midway up the slope. Four urban, forested plots were established in November 1998, two at Leakin Park and two adjacent to Hillsdale Park in west Baltimore City in the Gwynns Falls. One of the plots in Hillsdale Park was abandoned in 2004 due to continued vandalism. Plot locations: Hillsdale 1: 39�19'28.14"N, 76�42'16.49"W Hillsdale 2: 39�19'31.24"N, 76�42'28.62"W Leakin 1: 39�18'1.32"N, 76�41'37.08"W Leakin 2: 39�18'5.42"N, 76�41'34.15"W Oregon top-slope - 1: 39�28'51.11"N, 76�41'22.50"W Oregon mid-slope - 1: 39�28'51.32"N, 76�41'18.24"W Oregon top-slope - 2: 39�29'12.74"N, 76�41'22.88"W Oregon mid-slope - 2: 39�29'12.68"N, 76�41'18.62"W Soil arthropods were sampled between November 1999 and 2000 using pitfall traps. At each plot a total of ten traps were placed which were emptied monthly. Earthworms were sampled using a combination of formalin solution (Raw 1954) and mustard suspension. 50cm x 50cm quadrats were used. Earthworms samples were taken is spring, su
Figure 3 in Terrestrial isopods as bioindicators for environmental monitoring in olive groves and natural ecosystems
Figure 3. Activity density of isopods in olive grove management systems. Letters indicate homogeneous groups.
Data from: Evidence for the evolution of thermal tolerance but not desiccation tolerance in response to hotter, drier city conditions in a cosmopolitan, terrestrial isopod
<p>Cities are often hotter and drier compared with nearby undeveloped areas, but how organisms respond to these multifarious stressors associated with urban heat islands is largely unknown. Terrestrial isopods are especially susceptible to temperature and aridity stress as they have retained highly permeable gills from their aquatic ancestors. We performed a two‐temperature common garden experiment with urban and rural populations of the terrestrial isopod, <i>Oniscus asellus </i>, to uncover evidence for plastic and evolutionary responses to urban heat islands. We focused on physiological tolerance traits including tolerance of heat, cold and desiccation. We also examined body size responses to urban heat islands, as size can modulate physiological tolerances. We found that different mechanisms underlie responses to urban heat islands. While evidence suggests urban isopods may have evolved higher heat tolerance, urban and rural isopods had statistically indistinguishable cold and desiccation tolerances. In both populations, plasticity to warmer rearing temperature diminished cold tolerance. Although field‐collected urban and rural isopods were the same size, rearing temperature positively affected body size. Finally, larger size improved desiccation tolerance, which itself was influenced by rearing temperature. Our study demonstrates how multifarious changes associated with urban heat islands, <i>i.e. </i>heat and aridity, will not necessarily contribute to contemporary evolution in each of the corresponding physiological traits.</p>
FIGURE 6. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 6. Baeticoniscus bullonorum n. gen., n. sp. Female paratype. A, dorsal view; B, cephalon, dorsal; C, pereonites 5–7, pleon and pleotelson, dorsal; D, detail of the honeycomb structure of the seventh pereonite.
FIGURE 2. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 2. Baeticoniscus bullonorum n. gen., n. sp. Male paratype. A, habitus, dorsal view; B, pereonites 1–6, transversal view (from the front), and pereonite 7, dorsal; C, head (cephalothorax), frontal; D, first antenna; E, second antenna; F, second antenna flagellum (apical cone omitted).
FIGURE 1 in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 1. Cueva de la Pileta of Benaoján, Málaga, Spain. A, entrance to the cave; B, view of one of the halls inside (photos provided by Bullón family and Juan Mayoral).
FIGURE 4. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 4. Baeticoniscus bullonorum n. gen., n. sp. Male paratype. A, first pereopod; B, detail of propodus and dactylus of first pereopod; C, first male pleopod; D, second male pleopod; E, genital papilla.
FIGURE 5. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 5. Baeticoniscus bullonorum n. gen., n. sp. Male paratype. A, seventh pereopod; B, detail of propodus and dactylus of seventh pereopod.
FIGURE 3. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 3. Baeticoniscus bullonorum n. gen., n. sp. Male paratype. A, first maxilla outer and inner endites; B, maxilliped, distal portion; C, second maxilla distal portion, frontal and ventral; D, right mandible; E, left mandible.
FIGURE 7. Baeticoniscus bullonorum n. gen., n in A new genus and species of cave-dwelling terrestrial isopod (Crustacea: Oniscidea Trichoniscidae) from Southern Spain
FIGURE 7. Baeticoniscus bullonorum n. gen., n. sp. Specimen photographed alive in the Cueva de la Pileta.
FIGURE 9. Hemilepistus taftanicus n in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 9. Hemilepistus taftanicus n. sp., male. A, pereopod 1; B, pereopod 7; C, ischium pereopod 7 (caudal view); D, antenna; E, pleopod 1 exopod; F, pleopod 1 endopod and enlarged apex; G, pleopod 2 exopod. Scale: 1 mm for A–D and 0.5 mm for E–G.
FIGURE 6 in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 6. Hemilepistus klugii, male (from Garmsar). A, pereopod 1; B, pereopod 7; C, ischium pereopod 7 (caudal view); D, antenna; E, pleopod 1 exopod; F, pleopod 1 endopod and enlarged apex; G, pleopod 2 exopod. Scale: 1 mm for A–D and 0.5 mm for E–G.
FIGURE 2. Hemilepistus aphganicus. A–C. male, 20 in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 2. Hemilepistus aphganicus. A–C. male, 20 mm; Hemilepistus cristatus. D–F. Male, 16 mm. A, D. head and four first pereonites, dorsal view; B, E. head and first four pereonites, lateral view; C, F. pleon.
FIGURE 5. Hemilepistus klugii. A–C in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 5. Hemilepistus klugii. A–C, male, 20 mm; Hemilepistus schirasi. D–F, male, 17 mm. A, D, head and first four pereonites, dorsal view; B, E. head and four first pereonites, lateral view; C, F. pleon.
FIGURE 4 in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 4. Hemilepistus cristatus. Male (from Robate Gharebil). A, pereopod 1; B, pereopod 7; C, ischium pereopod 7 (caudal view); D, antenna; E, pleopod 1 exopod; F, pleopod 1 endopod and enlarged apex; G, pleopod 2 exopod. Scale: 1 mm for A–D and 0.5 mm for E–G.
FIGURE 8. Hemilepistus taftanicus n in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 8. Hemilepistus taftanicus n. sp., holotype, male, 16 mm. A, whole body; B, head and four first pereonites, lateral view; C, head and first four pereonites, dorsal view; D, pleon.
FIGURE 7 in Terrestrial isopods of the subgenus Hemilepistus (Hemilepistus) Budde-Lund, 1879 (Isopoda: Oniscidea) from Iran
FIGURE 7. Hemilepistus schirasi, male (from Zahed Shahr), A, pereopod 1; B, pereopod 7; C, ischium pereopod 7 (caudal view); D, antenna; E, pleopod 1 exopod; F, pleopod 1 endopod and enlarged apex; G, pleopod 2 exopod. Scale: 1 mm for A–D and 0.5 mm for E–G.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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