Talbragarus averyi gen. et sp. n., the first Jurassic weevil from the southern hemisphere (Coleoptera: Curculionoidea: Nemonychidae)

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 256-266 ◽  
Author(s):  
ROLF G. OBERPRIELER ◽  
STEFANIE K. OBERPRIELER
Keyword(s):  
Southern Hemisphere ◽  
Plant Species ◽  
New South ◽  
Upper Jurassic ◽  
Plant Association ◽  
Dominant Plant Species ◽  
The Family

The first authentic weevil fossils known from Australia, and the oldest known from the southern hemisphere, are describedand illustrated on the basis of two specimens recovered from the Upper-Jurassic Talbragar Fish Bed in New South Wales.Talbragarus averyi gen. et sp. n. is classified in the family Nemonychidae based on the presence of scutellary strioles onthe elytra, the length and insertion of the antennae and the shape of the eyes, prothorax, legs and overall body. Anassignment of Talbragarus to a subfamily of Nemonychidae is not possible due to the lack of preservation of crucialcharacters, but it may represent the subfamily Rhinorhynchinae, which is still extant in Australia. Talbragarus wasprobably associated with the dominant plant species found in the Talbragar Fish Bed, the araucariaceous Podozamitesjurassica, and may have fed on its pollen as adults and larvae as extant Australian Nemonychidae do, indicating that this insect-plant association may have survived in Australia from Jurassic times.

scholarly journals Reappraisal of Mesozoic fishes and associated invertebrates and flora from Talbragar and Koonwarra, eastern Australia

2017 ◽  
Vol 129 (1) ◽  
pp. 7 ◽  
Author(s):  
Lynne B. Bean
Keyword(s):  
Lower Cretaceous ◽  
Fossil Record ◽  
New South ◽  
New South Wales ◽  
Upper Jurassic ◽  
South Wales ◽  
Eastern Australia ◽  
The Family ◽  
Common Genus ◽  
Shed Light

Eastern Australia has two major Mesozoic fossil localities. The Talbragar Fish Bed in central west New South Wales contains an assemblage of Upper Jurassic fishes, plants and insects. The Koonwarra Fossil Bed, in South Gippsland, Victoria, has an assemblage of Lower Cretaceous fishes, plants and insects. The geological settings of these localities are described. Each locality has a common genus of fish that was originally described as Leptolepis. The names of both these fish have been changed, the Talbragar one to Cavenderichthys talbragarensis and the Koonwarra one to Waldmanichthys koonwarri. Both of these fish have been placed into the Family Luisiellidae, together with a Patagonian fish, Luisiella feruglioi. Each locality also has a member of the family Archaeomenidae: Archaeomene tenuis from Talbragar and Wadeichthys oxyops from Koonwarra. The relationships of these and other fish have been discussed by various authors over the last 20 years and a summary of these comments is presented, as well as a brief comparison between the plants of both localities. The localities of Talbragar, Koonwarra and the Argentinian fishes during the Mesozoic appear to have similar palaeo-environmental settings, which may explain the similarities in the assemblages. The Australian localities contain well-preserved specimens which shed light on the diversity and extent of fishes in southern Gondwana, a region otherwise poorly represented in the fossil record.

scholarly journals Photosynthetic parameters of a sedge-grass marsh as a big-leaf: effect of plant species composition

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Markéta Mejdová ◽  
Jiří Dušek ◽  
Lenka Foltýnová ◽  
Lenka Macálková ◽  
Hana Čížková
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Photosynthetic Parameters ◽  
Acorus Calamus ◽  
Dominant Plant Species ◽  
Local Plant ◽  
Rate Of Photosynthesis ◽  
Carex Acuta ◽  
Leaf P

AbstractThe study estimates the parameters of the photosynthesis–irradiance relationship (PN/I) of a sedge-grass marsh (Czech Republic, Europe), represented as an active “green” surface—a hypothetical “big-leaf”. Photosynthetic parameters of the “big-leaf” are based on in situ measurements of the leaf PN/I curves of the dominant plant species. The non-rectangular hyperbola was selected as the best model for fitting the PN/I relationships. The plant species had different parameters of this relationship. The highest light-saturated rate of photosynthesis (Asat) was recorded for Glyceria maxima and Acorus calamus followed by Carex acuta and Phalaris arundinacea. The lowest Asat was recorded for Calamagrostis canescens. The parameters of the PN/I relationship were calculated also for different growth periods. The highest Asat was calculated for the spring period followed by the summer and autumn periods. The effect of the species composition of the local plant community on the photosynthetic parameters of the “big-leaf” was addressed by introducing both real (recorded) and hypothetical species compositions corresponding to “wet” and “dry” hydrological conditions. We can conclude that the species composition (or diversity) is essential for reaching a high Asat of the “big-leaf ”representing the sedge-grass marsh in different growth periods.

Plant induced spatial distribution of nematodes in a semi-natural grassland

Nematology ◽  
2007 ◽  
Vol 9 (1) ◽  
pp. 131-142 ◽  
Author(s):  
Maria Viketoft
Keyword(s):  
Multivariate Analysis ◽  
Spatial Distribution ◽  
Spatial Structure ◽  
Plant Species ◽  
Trifolium Repens ◽  
Individual Plant ◽  
Nematode Communities ◽  
The Family ◽  
Natural Grassland ◽  
Nematode Fauna

AbstractThis study describes the nematode community in a semi-natural grassland and investigates if certain individual plant species can cause a spatial structure in the nematode fauna. Nematode communities were analysed in soil under Trifolium repens, Festuca ovina and from randomly taken samples. Seventy-nine nematode genera were identified. Some of the species found have not previously been reported from Sweden. Multivariate analysis separated the nematode communities associated with the two selected plant species from each other, and several individual nematode genera differed in abundance between the plant species. Trifolium repens supported greater populations of the plant feeder Tylenchorhynchus and the bacterial feeders Eucephalobus, Chiloplacus, Eumonhystera and Panagrolaimus, but fewer numbers of the bacterial feeder Achromadora. Soil under F. ovina contained more nematodes from the family Alaimidae. A comparison is given with other studies from grassland systems in Sweden.

Jurodidae (Coleoptera: Archostemata) from Transbaikalia: new findings and redescription of type material

2021 ◽  
Vol 4 (6) ◽  
Author(s):  
EVGENY V. YAN ◽  
OLESYA D. STRELNIKOVA ◽  
ALEXANDER G. PONOMARENKO
Keyword(s):  
New Species ◽  
Lower Cretaceous ◽  
Inner Mongolia ◽  
Upper Jurassic ◽  
Type Material ◽  
New Findings ◽  
The Family

Two species of Jurodidae: Jurodes ignoramus and Jurodes minor are redescribed, new characters presented, and characters from original descriptions are phylogenetically reevaluated, justifying a placement of the family within the suborder Archostemata. The new species Jurodes shef sp. nov. from the Lower Cretaceous locality Khasurty (Berriasian-Barremian, Zakamenskiy district, Buryatia Republic, Russia) is described and 2 new specimens of J. ignoramus Ponomarenko, 1985 and 5 additional specimens of J. minor Ponomarenko, 1990 are recorded. Jurodids from Khasurty are morphologically closer to those from Daohugou locality (Middle–Upper Jurassic, Inner Mongolia, China).

scholarly journals Short-term root and leaf decomposition of two dominant plant species in a Siberian tundra

Pedobiologia ◽  
2017 ◽  
Vol 65 ◽  
pp. 68-76 ◽  
Author(s):  
Peng Wang ◽  
Jasper van Ruijven ◽  
Monique M.P.D. Heijmans ◽  
Frank Berendse ◽  
Ayal Maksimov ◽  
...  
Keyword(s):  
Plant Species ◽  
Leaf Decomposition ◽  
Short Term ◽  
Dominant Plant Species

scholarly journals Genetic Diversity of Dominant Plant Species in Tropical Land-Use Systems in Sumatra, Indonesia

2018 ◽  
Vol 11 ◽  
pp. 194008291881390
Author(s):  
Natalie Breidenbach ◽  
Sri Rahayu ◽  
Iskandar Z. Siregar ◽  
Ulfah J. Siregar ◽  
Hamzah ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Land Use ◽  
Plant Species ◽  
Land Use Systems ◽  
Dominant Plant Species

scholarly journals Recovery of Globba wengeri (C.E.C. Fisch.) K.J. Williams, critically endangered plant species from Serchhip District in Mizoram, Northeast India

2020 ◽  
Vol 7 (2) ◽  
pp. 178-181
Author(s):  
Lalnun Mawia ◽  
Vanlalhruaii Ralte ◽  
H. Lalruatsanga ◽  
Zothan Mawia ◽  
P.C. Vanlalhluna ◽  
...  
Keyword(s):  
Life History ◽  
Plant Species ◽  
Natural Habitat ◽  
Northeast India ◽  
Critically Endangered ◽  
Endangered Plant ◽  
Endangered Plant Species ◽  
The Family ◽  
First Time

Globba wengeri (C.E.C. Fisch.) K.J. Williams, former state flower of Mizoram, a rare and critically endangered plant species, commonly known as ‘dancing girl’, belonging to the family Zingiberaceae, is reported in this communication for the first time from Serchhip District in Mizoram at an elevation of about 1187 m a.s.l. It was found on moist, watery and rocky slopes. The plant is under severe threat in the natural habitat and therefore, further studies are required to determine life history and particular survival threats of this species.

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