Results 51 to 60 of about 136,340 (252)

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima   +3 more
wiley   +1 more source

Dynamics of Haematobia irritans irritans (Diptera: Muscidae) infestation on Nelore cattle in the Pantanal, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
From June 1993 to May 1995, horn fly counts were conducted twice a month on untreated Nelore cattle raised extensively in the Pantanal. Horn fly population showed a bimodal fluctuation and peaks were observed every year after the beginning (November ...
Barros Antonio Thadeu M
doaj  

Assessing the economic injury threshold and decay of performance after onset due to horn fly abundance in beef cattle

open access: yesFrontiers in Animal Science
Horn flies (Haematobia irritans) are one of the most damaging ectoparasites for the cattle industry due to their negative impact on animal productivity, reproductive efficiency, and overall welfare.
M. Zare   +6 more
doaj   +1 more source

Quantifying Migratory Bat Movements in Central Europe Across Seasons and Years Using a Vertical‐Looking Radar

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini   +5 more
wiley   +1 more source

Teachers' Pedagogical Reasoning and Students' Three‐Dimensional Learning

open access: yesScience Education, EarlyView.
ABSTRACT This article reports analyses of data from a design‐based implementation project focused on middle‐ and high‐school science teaching. Drawing on teacher interviews and surveys as well as student learning evidence, we examined the relationships between teachers' pedagogical reasoning and their students' three‐dimensional learning. Most teachers
Christie Morrison Thomas   +5 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  

CAT altitude avoidance system [PDF]

open access: yes, 1982
A method and apparatus are provided for indicating the altitude of the tropopause or of an inversion layer wherein clear air turbulence (CAT) may occur, and the likely severity of any such CAT, includes directing a passive microwave radiometer on the ...
Gary, B. L.
core   +1 more source

Concrete in architecture: Redefining form, space, function, and insights from bibliometric analysis

open access: yesStructural Concrete, EarlyView.
Abstract Concrete has become a cornerstone in architectural and engineering innovation, as it seamlessly integrates structural performance with artistic expression. Its evolution from ancient opus caementicium to contemporary ultra‐high‐performance concrete illustrates its adaptability to the change in technological, environmental, and design paradigms.
Mouhcine Benaicha   +2 more
wiley   +1 more source

Genotype characterization of Haematobia irritans from different Brazilian geographic regions based on randomly amplified polymorphic DNA (RAPD) analysis Caracterização genotípica de Haematobia irritans procedentes de diferentes regiões geográficas brasileiras baseada na análise do DNA polimórfico amplificado ao acaso (RAPD-PCR)

open access: yesPesquisa Veterinária Brasileira, 2007
Blood-sucking diptera are important parasites in bovine production systems, especially regarding confinement conditions. Haematobia irritans, the horn fly, is one of the most troublesome species within bovine production systems, due to the intense stress
Luciana G. Brito   +4 more
doaj   +1 more source

A framework for the ethical use of animal‐borne devices in post‐release monitoring following rehabilitation

open access: yesWildlife Biology, EarlyView.
Rehabilitation and release contribute to conservation efforts for threatened species. Ensuring that these efforts are effective requires a good understanding of the factors which determine survival and integration of released animals into wild populations.
Jessica Harvey‐Carroll   +3 more
wiley   +1 more source

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