Results 71 to 80 of about 34,695 (231)

A multi‐year dormancy strategy in a cabbage beetle population in southeastern China

open access: yesEcology and Evolution, 2022
The life cycle of the cabbage beetle Colaphellus bowringi in southeastern China is complex due to four options for adult development: summer diapause, winter diapause, prolonged diapsuse, and nondiapause.
Jian‐Jun Tang   +5 more
doaj   +1 more source

Gypsy moths and American dog ticks: Space partners [PDF]

open access: yes, 1984
An experiment intended for the space shuttle and designed to investigate the effects of weightlessness and total darkness on gypsy moth eggs and engorged American dog ticks is described.
Goans, M. D.   +3 more
core   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

open access: yesPest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde   +4 more
wiley   +1 more source

A model for the overwintering process of European grapevine moth Lobesia botrana (Denis & Schiffermüller) (Lepidoptera, Tortricidae) populations

open access: yesJournal of Entomological and Acarological Research, 2012
The paper deals with the development, parametrization and validation of a phenology model of the overwintering process of European grapevine moth Lobesia botrana (Denis & Schiffermüller) populations in northern latitudes.
Johann Baumgärtner   +3 more
doaj   +1 more source

Adaptive responses to environmental variability in rotifers: Integrating plasticity and bet hedging in dormancy exit [PDF]

open access: yesEcology.
Abstract Environmental variability imposes strong selective pressures that may favor adaptive responses such as phenotypic plasticity and bet hedging. Plasticity is generally favored under predictable conditions, whereas bet hedging is advantageous against environmental uncertainty. Plastic responses rely on reliable cues to adjust phenotypes to future
Solano‐Udina C   +2 more
europepmc   +2 more sources

Development, Survival and Phenology of the Sweetclover Weevil Parasitoid, \u3ci\u3ePygostolus Falcatus\u3c/i\u3e (Hymenoptera: Braconidae) [PDF]

open access: yes, 2018
Biennial sweetclovers were widely used for soil improvement and as for- ages in the first half of the 1900s. The introduction of the sweetclover weevil, Sitona cylindricollis, caused a drastic decline in sweetclover acreage.
Milbrath, Lindsey R, Weiss, Michael J
core   +2 more sources

Molecular Regulators of Embryonic Diapause and Cancer Diapause-like State

open access: yesCells, 2022
Embryonic diapause is an enigmatic state of dormancy that interrupts the normally tight connection between developmental stages and time. This reproductive strategy and state of suspended development occurs in mice, bears, roe deer, and over 130 other mammals and favors the survival of newborns.
Abdiasis M. Hussein   +3 more
openaire   +3 more sources

Assessing physiological, behavioral and movement responses to Suprelorin implant delivery methods in free‐ranging eastern grey kangaroos Macropus giganteus

open access: yesWildlife Biology, EarlyView.
Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva   +4 more
wiley   +1 more source

Life history patterns of Procladius choreus, Tanypus punctipennis and Chironomus balatonicus in Lake Balaton [PDF]

open access: yes, 2008
Life history patterns of the three most abundant chironomids were analysed in Lake Balaton by monitoring the population dynamics of larvae and the presence of pupal exuviae.
Specziár, András
core   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

open access: yesInsect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji   +3 more
wiley   +1 more source

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