Results 71 to 80 of about 16,862 (239)
Theclinae of Rondonia, Brazil: Strymon Hübner : with descriptions of new species (Lepidoptera: Lycaenidae) [PDF]
, 2011 Twenty-two species of Strymon are known from the vicinity of Cacaulandia in Rondonia, Brazil, of which 14 are new species. These belong to 5 species groups: the "oreala" group [Strymon megarus (Godart)]; the "ziba" group [Strymon ziba (Hewitson), Strymon
Austin, George T., Johnson, Kurt
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Aphid wing dimorphisms: linking environmental and genetic control of trait variation [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2010 Both genetic and environmental factors underlie phenotypic variation. While research at the interface of evolutionary and developmental biology has made excellent advances in understanding the contribution of genes to morphology, less well understood is the manner in which environmental cues are incorporated during development to influence the ...
openaire +2 more sources
Comparing autumn duck use of intensely managed wetlands in Michigan using a novel approach
The Journal of Wildlife Management, EarlyView.Camera traps, a relatively novel method for assessing waterfowl use of wetlands, show ducks in southeastern Michigan are influenced by hunting disturbance, vegetation type, season progression, and diel period. Abstract Socioeconomic value derived from duck hunting has contributed to autumn habitat use becoming a particular focus for the natural ...
Trey McClinton +2 more
wiley +1 more source
Current Research in Insect ScienceWhy are some species sexually dimorphic while other closely related species are not? While all females in genus Strauzia share a multiply-banded wing pattern typical of many other true fruit flies, males of four species have noticeably elongated wings ...
Alaine C. Hippee +3 more
doaj +1 more source
Sex‐dependent and sex‐independent regulatory systems of size variation in natural populations
Molecular Systems Biology, 2019 Size of organs/organisms is a polygenic trait. Many of the growth‐regulatory genes constitute conserved growth signaling pathways. However, how these multiple genes are orchestrated at the systems level to attain the natural variation in size including ...
Hirokazu Okada +4 more
doaj +1 more source
Acta Agriculturae Slovenica, 2014 Sexual size dimorphism (SSD) is a common phenomenon in most mammalian and poultry species. This study was undertaken to investigate SSD in nondescript locally adapted Muscovy ducks in Nigeria by applying descriptive analysis, sexual dimorphism index (SDI)
Abel Olusegun OGUNTUNJI +1 more
doaj +1 more source
The breeding ecology and mating system of the bellbird (Athornis melanura) on Tiritiri Matangi Island : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Conservation Biology at Massey University [PDF]
, 2007 A large population of Bellbirds were individually banded and monitored on Tiritiri Matangi Island in 2005 and 2006. The main aim of this research was to provide baseline breeding data from a large, stable population of Bellbirds reminiscent of pre ...
Cope, Taneal Mulock
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Pest Management Science, EarlyView.SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos +2 more
wiley +1 more source
Seasonal polyphenism in Eristalis pertinax (Diptera: Syrphidae)
European Journal of Entomology, 2016 Eristalis pertinax varies seasonally, with the spring morph more hairy than the summer morph. We measured the size and the venation of the wings of the seasonal morphs.
Lukasz E. MIELCZAREK +3 more
doaj +1 more source
A new species of Reticulitermes Holmgren, 1913 (Isoptera: Rhinotermitidae) from the southeastern United States [PDF]
, 2012 Reticulitermes nelsonae, a new species of subterranean termite (Isoptera, Rhinotermitidae) is described from Sapelo Island, Georgia, United States of America, with specimens also found in North Carolina and Florida.
Forschler, Brian T., Lim, Su Yee
core +3 more sources