Results 101 to 110 of about 58,386 (269)

Scarab beetles from pocket gopher burrows in the southeastern United States (Coleoptera: Scarabaeidae) [PDF]

open access: yes, 2001
This paper reports on the scarab beetles collected during a survey of nonparasitic arthopods living in burrows of the southeastern pocket gopher (Geomys pinetus Rafinesque, Geomyidae). Three new species are described: Aphodius bakeri, A.
Gordon, Robert D., Skelley, Paul E.
core   +1 more source

A century of theories of balancing selection

open access: yesBiological Reviews, EarlyView.
ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka   +10 more
wiley   +1 more source

High chromosomal variation in wild horn fly Haematobia irritans (Linnaeus) (Diptera, Muscidae) populations

open access: yesComparative Cytogenetics, 2015
The horn fly, Haematobia irritans is an obligate haematophagous cosmopolitan insect pest. The first reports of attacks on livestock by H. irritans in Argentina and Uruguay occurred in 1991, and since 1993 it is considered an economically important pest ...
Natalia Forneris   +6 more
doaj   +1 more source

Prioritising research on endocrine disruption in the marine environment: a global perspective

open access: yesBiological Reviews, EarlyView.
ABSTRACT A healthy ocean is a crucial life support system that regulates the global climate, is a source of oxygen and supports major economic activities. A vast and understudied biodiversity from micro‐ to macro‐organisms is integral to ocean health.
Patricia I. S. Pinto   +23 more
wiley   +1 more source

Horn fly and grub contzeol on beef cattle… testing several new insecticides

open access: yesCalifornia Agriculture, 1967
A 75% reduction in horn fly populations lasted from two to four weeks following trial spray applications of insecticides in June, for two to six weeks following August treatments, and for the remainder of the fly season with most of the September grub ...
W Johnson, E Loomis
doaj  

UBVH: Unified Bounding Volume and Scene Geometry Representation for Ray Tracing

open access: yesComputer Graphics Forum, EarlyView.
Abstract Bounding volume hierarchies (BVHs) are currently the most common data structure used to accelerate ray tracing. The existing BVH methods distinguish between the bounding volume representation associated with the interior BVH nodes and the scene geometry representation associated with leaf nodes.
M. Káčerik, J. Bittner
wiley   +1 more source

Exploring Young Autistic Children's Family and Independent Digital Experiences at Home

open access: yesChildren &Society, EarlyView.
ABSTRACT This study investigated how young autistic children engaged with digital technologies within the home context. Studying the everyday lives of three families in Queensland, Australia provided opportunities to identify the digital technologies they used and the purpose and potential of the children's digital interactions.
Irina Silva, Susan Danby, Beth Saggers
wiley   +1 more source

Mechanisms regulating nutrition-dependent developmental plasticity through organ-specific effects in insects

open access: yesFrontiers in Physiology, 2013
Nutrition, via the insulin/insulin-like growth factor (IIS)/Target of Rapamycin (TOR) signaling pathway, can provide a strong molding force for determining animal size and shape.
Takashi eKoyama   +2 more
doaj   +1 more source

Rainfall shapes the physiological condition, but not the body size, of an introduced dung beetle in Brazilian pastures

open access: yesEcological Entomology, EarlyView.
Understanding rainfall‐driven physiological shifts in dung beetles is crucial to predict how climate change may affect the fitness and persistence of key insect species in tropical pastures. We compared body size, dry, lipid and muscle masses of Digitonthophagus gazella collected during dry and rainy seasons in Brazilian pastures to assess the effects ...
Cleilsom M. Cristaldo   +4 more
wiley   +1 more source

Susceptibility to diazinon in populations of the horn fly, Haematobia irritans (Diptera: Muscidae), in Central Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2002
From October 2000 to April 2001, insecticide bioassays were conducted in 18 ranches from 10 counties in the states of Mato Grosso and Mato Grosso do Sul, in Central Brazil.
Barros Antonio Thadeu M   +3 more
doaj  

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