Results 41 to 50 of about 2,468 (175)

Reproductive diapause influences spermatogenesis and testes’ size in the diplochronous wolf spider Allocosa senex (Lycosidae, Araneae) – A case study using a non-experimental approach [PDF]

, 2023
Seasonality considerably impacts on the life of organisms and leads to numerous evolutionary adaptations. Some species face seasonal changes by entering a diapause during different life stages.
Fedra Bollatti, Álvaro Laborda, Anita Aisenberg, Bollatti, Fedra Ariana, Michalik, Peter, Postiglioni, Rodrigo, Peretti, Alfredo Vicente, Alfredo V. Peretti, Aisenberg, Anita, Rodrigo Postiglioni, Laborda, Álvaro, Tim M. Dederichs, Dederichs, Tim M., Peter Michalik   +13 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

Pest 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, Samantha M Cook, Bernd Ulber, Tobias Pöhnl, Michael Rostás   +4 more
wiley   +1 more source

Diapause termination of Rhagoletis cerasi pupae is regulated by local adaptation and phenotypic plasticity: escape in time through bet-hedging strategies [PDF]

, 2013
Persistence and thriving of univoltine, herbivore insect species of the temperate zone rely on obligate diapause response that ensures winter survival and synchronization with host phenology.
Nakas, C. T., Papadopoulos, N. T., Moraiti, C. A., C. T. Nakas, N. T. Papadopoulos, C. A. Moraiti   +5 more
core   +1 more source

Responses and adaptations of collembolan communities (Hexapoda: Collembola) to flooding and hypoxic conditions Respostas e adaptações de comunidades de colêmbolos (Hexapoda: Collembola) a condições de inundação e hipoxia

Pesquisa Agropecuária Brasileira, 2009
Standard ecological methods (pitfall traps, trunk eclectors and soil cores) were used to evaluate collembolan community responses to different flooding intensities.
Michael Thomas Marx, Anna-Katharina Wild, Ulrich Knollmann, Günter Kamp, Gerhard Wegener, Gerhard Eisenbeis   +5 more
doaj   +1 more source

Predator egg‐induced non‐consumptive effects suppress spider mite survival and reproductive performance

Pest Management Science, EarlyView.
Increasing predation intensity of predatory mite significantly reduced spider mite fitness in terms of shorter mother longevity, lower mother fecundity, longer offspring development, lower offspring survival, and lower population growth. Abstract BACKGROUND Predators suppress pest populations not only through direct consumption but also via non ...
Resona Simkhada, Jhaman Kundun, Svetla Sofkova‐Bobcheva, Xiong Z He   +3 more
wiley   +1 more source

Regional analysis of spatiotemporal trends in Colorado potato beetle abundance

Pest Management Science, EarlyView.
Leveraging a large data set on Colorado potato beetles in Wisconsin, we examine spatial and temporal abundance trends. Spatiotemporal statistical models substantially improve fit and show that climate and management factors are positively associated with abundance levels.
Nursultan Azhimuratov, Russell L. Groves, Juan Francisco Mandujano Reyes, Jun Zhu, Sean D. Schoville   +4 more
wiley   +1 more source

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

Wildlife 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, Sebastien Comte, Tamara Keeley, Maquel Brandimarti, Catherine A. Herbert   +4 more
wiley   +1 more source

Diapause by seed predators and parasitoids in Chionochloa mast seeding communities [PDF]

, 2008
Chionochloa, a genus of snow tussock grasses native to New Zealand, exhibits pronounced mast seeding. Chionochloa suffers very high levels of pre-dispersal flower and seed predation by three main insects: Eucalyptodiplosis chionochloae, a cecidomyiid ...
Sarfati, Michal
core   +1 more source

Possible Influence of MLP Regulators in Foliage of Host Species on Invasion of Phyllophagous Insects [PDF]

Pesticidi i Fitomedicina, 2010
On the northern border of the Gypsy moth area (Lymantria dispar L., 1758), caterpillars are reorient to exogenous regulators of membrane lipid peroxidation in connection with repeated cold periods during feeding. In case of an introduction of host plants
Vasiliy I. Ponomarev, Nikolay V. Shatalin, Tatiana M. Strelskaya, Georgiy I. Klobukov   +3 more
doaj  

Alternative seed trait strategies are linked to a trade‐off between spatial and temporal dispersal

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Seed dispersal allows plants to seek favourable conditions or spread the risk of unfavourable conditions through space and time. While theory predicts a trade‐off between spatial and temporal dispersal, empirical tests have been stymied by the difficulty of measuring ...
Marina L. LaForgia, Susan P. Harrison, Michal J. Borton, Pierre‐Olivier Cheptou, Lauren M. Hallett, Jennifer R. Gremer   +5 more
wiley   +1 more source