Results 71 to 80 of about 17,379 (258)

Using Degree-Day Methodology to Ascertain Early Flight Periods of Michigan Butterflies and Skippers [PDF]

open access: yes, 2018
Butterflies and skippers have been collected in Michigan for over 130 years and the accompanying data labels continue to provide significant information.
Perkins, Owen A
core   +2 more sources

Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics

open access: yesJournal of Fish Biology, EarlyView.
Abstract Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life‐history trait. The northern cod (Gadus morhua) stock complex,
M. Lisette Delgado   +10 more
wiley   +1 more source

Soil and Drainage [PDF]

open access: yes, 1905
PDF pages ...
Graham, A. B., Osborn, Herbert
core  

Effects of soil nutrients on the sequestration of plant defence chemicals by the specialist insect herbivore, Danaus plexippus [PDF]

open access: yes, 2015
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/110863/1/een12168 ...
Agrawal   +51 more
core   +1 more source

Arbuscular Mycorrhizal Fungi Mitigate Drought‐Enhanced Herbivore Performance in Maize

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Drought events are becoming increasingly frequent and intense, posing major challenges to crop productivity. Beyond direct water stress, drought can indirectly affect plants by enhancing herbivore performance. While arbuscular mycorrhizal fungi (AMF) have been proposed to alleviate drought stress and to enhance plant resistance to herbivory ...
Sheharyar Ahmed Khan   +7 more
wiley   +1 more source

Effects of transgenic Bacillus thuringiensis corn pollen on the monarch butterfly [PDF]

open access: yes, 2003
Transgenic Bt corn has been widely planted in Iowa. This study considered whether plant tissues released by Bt corn (pollen and anthers) have an effect on monarch butterfly ...
Jesse, Laura C. H., Obrycki, John J.
core   +2 more sources

Effects on Fitness and Behavior of Monarch Butterfly Larvae Exposed to a Combination of Cry1Ab-Expressing Corn Anthers and Pollen [PDF]

open access: yes, 2005
Anthers and pollen from corn, Zea mays L., expressing Bacillus thuringiensis (Bt)-derived protein frequently fall onto common milkweed, Asclepias syriaca L., growing in and near corn fields. Previous studies have shown that, alone, Bt anthers do not pose
Anderson, Patricia   +4 more
core   +3 more sources

Recent Forest Cover Loss in the Core Zones of the Monarch Butterfly Biosphere Reserve in Mexico

open access: yesFrontiers in Environmental Science, 2019
The Monarch Butterfly Biosphere Reserve (MBBR) in central Mexico was established in 2000 to protect monarch butterfly (Danaus plexippus) overwintering colonies and contribute to the conservation of the monarch migratory phenomenon.
José Juan Flores-Martínez   +6 more
doaj   +1 more source

Aggression Is Induced by Resource Limitation in the Monarch Caterpillar

open access: yesiScience, 2020
Summary: Food represents a limiting resource for the growth and developmental progression of many animal species. As a consequence, competition over food, space, or other resources can trigger territoriality and aggressive behavior.
Joseph Collie   +3 more
doaj   +1 more source

Generalization for both diurnal and nocturnal pollination in the mass‐flowering desert geophyte Nerine laticoma (Amaryllidaceae)

open access: yesPlant Biology, EarlyView.
Both diurnal and nocturnal pollinators are important in the desert plant Nerine laticoma. Abstract The evolutionary limits to generalization in plant pollination systems are often determined by trade‐offs in which adaptations to one set of flower visitors reduces the effectiveness of another set of visitors.
G. L. Theron   +6 more
wiley   +1 more source

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