scholarly journals New records and diet reconstruction using dental microwear analysis for Neolicaphrium recens Frenguelli, 1921 (Litopterna, Proterotheriidae)

2018 ◽  
Vol 46 (1) ◽  
pp. 153 ◽  
Author(s):  
Andrea Corona ◽  
Martín Ubilla ◽  
Daniel Perea

Neolicaphrium recens is the only survivor proterotherid in the Quaternary of South America, of which few fossil records from Argentina, Uruguay and probably Brazil are known. In this paper we describe new cranial remains with teeth series of N. recens from Artigas Department, Uruguay (Sopas Formation, Late Pleistocene), and previously published remains were reinterpreted and assigned to N. recens. We performed a dental microwear study of the seven most complete adult specimens from Argentina and Uruguay. The dental facets of interest were molded with silicone dental impression; the moulds were filled with epoxy resin and observed in a stereomicroscope. The paracone of M2 and the protoconid of m2 were photographed and the images digitally processed and studied. The results showed a high relative percentage of pits (scars of soft plants) on scratches (grooved pattern caused by silicophytoliths of grasses), indicating that the analyzed specimens were browsers, and their diet probably included fleshy leaves, buds and stems of trees and shrubs. These new data are consistent with previous results of carbon and oxygen isotopes studies and with inferences based on the associated fauna of N. recens in Uruguay, indicating for the Sopas Formation open to semi open grassland with forested areas, resembling a savanna. This study suggests some woodland environments for all the range of geographical distribution of the taxon.

2018 ◽  
pp. 19-21
Author(s):  
I. M. Mustafaev ◽  
M. M. Iminova ◽  
J. P. Sherkulova ◽  
T. N. Xolmurodova ◽  
S. A. Teshaboeva

2021 ◽  
Vol 14 ◽  
pp. e970
Author(s):  
Adalberto Medeiros ◽  
Emanoel Pereira Gualberto ◽  
Rafael Pereira Rodrigues ◽  
Solange Maria Kerpel

Restinga forests are plant formations that occur on plains of quaternary sandy deposits along the Brazilian coast. Despite historical reduction of the Restinga forests, little effort has been made to know the butterfly fauna of these areas. This paper is an important contribution to the butterfly’s knowledge, being the second inventory in the Restinga forest of northeastern Brazil. The survey was conducted in the Restinga de Cabedelo National Forest (FLONA de Cabedelo, following the Portuguese abbreviation) and aimed to provide preliminary information on the butterflies richness in this region. A total of 89 butterfly species and 1,503 individuals were recorded at FLONA de Cabedelo. Hesperiidae was the richest family (34 species), followed by Nymphalidae (33) Pieridae (eight), Lycaenidae (seven), Riodinidae (five), and Papilionidae (two). In general, the butterfly fauna of the FLONA de Cabedelo is dominated by species widely distributed and commonly found in open or forested areas in Brazil. Five species are new records in Paraíba state: Calydna sturnula (Geyer), Theope foliorum (Bates), Cogia hassan (Butler), Vehilius inca (Scudder), and Chiothion asychis (Stoll). We suggest carrying out monthly samplings which will certainly increase the list of species herein presented.


Phytotaxa ◽  
2016 ◽  
Vol 258 (3) ◽  
pp. 201 ◽  
Author(s):  
PIERRE MEERTS

A checklist to the trees and shrubs of Upper Katanga (the Zambezian part of Katanga, ca. 260,000 km²) (D.R. Congo) is presented. It comprises 694 taxa (664 species, 15 subspecies, 15 varieties). For each accepted taxon the list provides habitat and geographic distribution. Eleven taxa are new records for the D.R. Congo and 29 are new records for Upper Katanga. Fourteen new synonyms are proposed. Two families stand out as particularly species-rich, i.e. Fabaceae (110 taxa, i.e. Caesalpinioideae: 50; Faboideae: 29; Mimosoideae: 31) and Rubiaceae (74). Six genera comprise 10 taxa or more i.e. Ficus (25), Combretum (17), Monotes (17), Brachystegia (15), Diospyros (11), Acacia (11). The three most important woody vegetation types in Upper Katanga have different phytogeographic and taxonomic assemblages: miombo woodland (254 taxa, 62% of which are Zambezian, over-representation of Caesalpinioideae), riverine and swamp forest (196 taxa, 36% of which are Guineo-Congolian, 17% Afromontane), and Zambezian dry evergreen forest (117 taxa, 37% of which are Guineo-Congolian, Rubiaceae over-represented). Twenty taxa (3%) are strictly endemic to Upper Katanga, most of which occur only in the Katango-Zambian sector of the Zambezian region. Taxonomic uncertainties are emphasized including 13 endemics known by one or two collections only. Forty-nine taxa are almost exclusively associated with termite mounds. For the miombo woodlands eight ecological groups of indicator species are proposed.


Author(s):  
MJ Colloff ◽  
RB Halliday

Oribatid mites are ancient, minute arthropods that live in soil, plant litter, mosses and lichens, and on trees and shrubs. Prior to the production of this catalogue, Australian Oribatid mites had been poorly documented. This catalogue summarises our knowledge of the fauna of Australian Oribatid mites, including many new records of species and genera. It forms a fundamental resource for anyone interested in these important organisms and their role in soil ecology and as environmental indicators.


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