Results 1 to 10 of about 976 (132)
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
doaj +3 more sources
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
Egg quality and parental ornamentation in the blue tit Parus caeruleus
Journal of Avian Biology, 2007 Components of avian egg quality often show remarkable variation between females and yet the causes of variation in this fitness‐related trait remain poorly understood. We investigated the egg size and yolk carotenoid investment of blue tit Parus caeruleus females in relation to multiple ...
János Torok +2 more
exaly +2 more sources
Female Preference and the Maintenance of Male Fin Ornamentation in Three Egg-Mimic Darters (Pisces: Percidae) [PDF]
Journal of Freshwater Ecology, 2001 ABSTRACT Egg-mimic, or lollypop darters comprise four species in which breeding males develop large knobs supported by attenuated rays above the second dorsal fin. These structures are presumably the product of sexual selection via female mate choice behavior.
Rex Meade Strange
exaly +2 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
doaj +3 more sources
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
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
Scientia Marina, 2006 Much of the existing knowledge of the mechanisms involved in teleost fertilisation is based on a few small model species that have no commercial value. Research is therefore urgently required to address mechanisms involved in fertilisation in species of ...
Imam A. A. Mekkawy, Alaa G. M. Osman
doaj +1 more source