Results 31 to 40 of about 2,523,201 (324)

Amphoraceras rothschildi and A. jordani sp. n.: two sibling species (Lepidoptera: Erebidae)

open access: yesFragmenta entomologica, 2018
One new species of Amphoraceras which has so far remained unrecognised and intermingled within A. rothschildi is described as A. jordani sp. n. Both species are endemic to New Guinea, where they even happen to locally coexist and overlap phenologically ...
Alberto Zilli
doaj   +1 more source

Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species

open access: yesEuropean Journal of Taxonomy, 2021
The species of Stenothemus Bourgeois, 1907 from Southwest China are reviewed. Three species are transferred to this genus, S. davidi (Pic, 1926) comb. nov. (from Malthacus Kirby, 1837), S. minutissimus (Pic, 1933) comb. nov. (from Micropodabrus Pic, 1920)
Yuxia Yang   +3 more
doaj   +1 more source

ON NEW SPECIES OF AGROTIS [PDF]

open access: yesThe Canadian Entomologist, 1875
♂. Allied to A. bicarnea Guen,; smaller and distinguishable by the evenness of the t. p. line. Fore wings dead brownish black. T. a. line rigidly oblique to submedian fold, not rounded as in its ally, and with a less prominent tooth on internal margin. A very faint yellowish shading to the line and also on the costa at inception of t. p. line, where A.
openaire   +3 more sources

Non-native vascular flora of alpine areas in the White Mountains, New Hampshire, USA

open access: yesArctic, Antarctic, and Alpine Research, 2023
Arctic-alpine vegetation in the eastern United States is unique to northern New England and New York and is disjunct from similar areas in eastern Canada.
Daniel D. Sperduto   +2 more
doaj   +1 more source

A NEW SPECIES OF CERURA [PDF]

open access: yesThe Canadian Entomologist, 1891
Cerura modesta, n. sp.Male.—Front and vertex nearly white. Collar a little darker, tinged with a faint creamy yellowish-brown. Thorax dark stee-blue, almost black, with metallic purplish reflections, the orange scales forming so marked a feature in other species either entirely absent of with but a faint trace of their presence.
openaire   +3 more sources

Balancing the consequences of in-water cleaning of biofouling to improve ship efficiency and reduce biosecurity risk

open access: yesFrontiers in Marine Science, 2023
Effective environmental policy often involves introducing and maintaining important activities with positive outcomes while minimizing environmental consequences; essentially decoupling a positive activity from its negative impacts.
Chris Scianni   +3 more
doaj   +1 more source

Non-Equilibrium Quantum Dynamics of Ultra-Cold Atomic Mixtures: the Multi-Layer Multi-Configuration Time-Dependent Hartree Method for Bosons [PDF]

open access: yesNew J. Phys. 15, 063018 (2013), 2012
We develop and apply the multi-layer multi-configuration time-dependent Hartree method for bosons, which represents an ab initio method for investigating the non-equilibrium quantum dynamics of multi-species bosonic systems. Its multi-layer feature allows for tailoring the wave function ansatz in order to describe intra- and inter-species correlations ...
arxiv   +1 more source

A NEW SPECIES OF EUDAMUS [PDF]

open access: yesThe Canadian Entomologist, 1892
Eudamus coyate: Expands 2⅛i inches. Primaries dark glossy brown, several shades darker than Eudam. bathyllus; fringes of same colour as the wings. The apices of the wings run more to a point than in other species of the genus. There are no markings on the primaries, although there are some very faint indications of markings, which are not brought out ...
openaire   +3 more sources

Ecological and genetic effects of introduced species on their native competitors [PDF]

open access: yesTheoretical Population Biology 84 (2013): 25-35, 2012
Species introductions to new habitats can cause a decline in the population size of competing native species and consequently also in their genetic diversity. We are interested in why these adverse effects are weak in some cases whereas in others the native species declines to the point of extinction.
arxiv   +1 more source

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