Tiny, ornamented eggs and eggshell from the Upper Cretaceous of Utah represent a new ootaxon with theropod affinities [PDF]
Scientific Reports, 2021 A new Cretaceous ootaxon (eggshell type) from the Kaiparowits Formation of Grand Staircase-Escalante National Monument is among a growing number of very small eggs described from the Mesozoic.
Sara E. Oser +5 more
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A new Trychopeplus species (Phasmatodea, Diapheromerinae, Cladomorformia) discovered from Ecuador’s enigmatic Chocó ecoregion [PDF]
ZooKeysThis study presents a description of a new stick insect species belonging to the genus Trychopeplus Shelford, 1909, discovered by the authors in the Chocó ecoregion of northwestern Ecuador. Trychopeplus mashpiensis sp. nov.
Oskar V. Conle +2 more
doaj +4 more sources
Another new species of the genus Habrophlebia Eaton, 1881 (Ephemeroptera, Leptophlebiidae) from the Maghreb [PDF]
ZooKeys, 2023 A new species belonging to the genus Habrophlebia Eaton, 1881 is described at the nymphal stage from the Rif Mountains of Morocco. This species presents unique features, such as the chorionic arrangement of the egg and the ornamentation of the posterior ...
Majida El Alami +3 more
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Zoological Letters, 2021 The taxonomy of many groups of meiofauna is challenging due to their low number of diagnostic morphological characters and their small body size. Therefore, with the advent of molecular techniques that provide a new source of traits, many cryptic species
Daniel Stec +5 more
doaj +1 more source
Extreme offspring ornamentation in American coots is favored by selection within families, not benefits to conspecific brood parasites [PDF]
, 2019 Offspring ornamentation typically occurs in taxa with parental care, suggesting that selection arising from social interactions between parents and offspring may underlie signal evolution.
Lyon, Bruce E., Shizuka, Daizaburo
core +3 more sources
FORMATION OF PRESCHOOLERS’ AWARENESS OF UKRAINIAN PYSANKA PAINTING REGIONAL FEATURES
Естетика і етика педагогічної дії, 2022 The article characterizes the Ukrainian pysanka (Easter egg) painting as a kind of decorative and applied art and highlights its regional features of Dnieper Ukraine and Sloboda Ukraine.
O. Vashak, O. Hnizdilova, N. Manzhelii
doaj +1 more source
European Journal of Taxonomy, 2020 In this paper we describe Macrobiotus engbergi sp. nov. and Tenuibiotus zandrae sp. nov. from Greenland. Our study has involved both classical taxonomic methods, which include morphological and morphometric analyses conducted with the use of light and ...
Daniel Stec +2 more
doaj +1 more source
Parasitism and Predation on Sentinel Egg Masses of Three Stink Bug Species (Hemiptera: Pentatomidae) in Native and Exotic Ornamental Landscapes [PDF]
Journal of Economic Entomology, 2021 Abstract This study evaluated parasitism and predation on sentinel egg masses of three stink bug species, the spined soldier bug, Podisus maculiventris (Say), the brown stink bug, Euschistus servus (Say), and the invasive brown marmorated stink bug (BMSB), Halyomorpha halys (Stål), in ornamental landscapes composed of either native or ...
Mary L Cornelius +4 more
openaire +2 more sources
Ornaments or offspring? Female sticklebacks (Gasterosteus aculeatus L.) trade off carotenoids between spines and eggs [PDF]
Journal of Evolutionary Biology, 2006 Abstract Hypotheses and models to explain female ornaments often assume that the elaborated traits are condition dependent; nevertheless, few empirical studies have addressed this topic. We studied a population of three-spined sticklebacks (Gasterosteus aculeatus) in which the females have conspicuous, carotenoid-based red coloration to ...
J T, Nordeide +2 more
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Carotenoid concentration in barn swallow eggs is influenced by laying order, maternal infection and paternal ornamentation [PDF]
Proceedings of the Royal Society of London. Series B: Biological Sciences, 2002 Carotenoids are critical to embryonic development, immunity and protection from oxidative stress. Transmission of carotenoids to the eggs may affect development and maturation of immunity in offspring, but carotenoids may be available to females in limiting amounts.
N. Saino +5 more
openaire +3 more sources