Results 41 to 50 of about 17,778 (299)

Alien plant fitness is limited by functional trade‐offs rather than a long‐term increase in competitive effects of native communities

Ecology and Evolution, 2023
Alien plants experience novel abiotic conditions and interactions with native communities in the introduced area. Intra‐ and interspecific selection on functional traits in the new environment may lead to increased population growth with time since ...
Marco R. Brendel, Frank M. Schurr, Christine S. Sheppard   +2 more
doaj   +1 more source

A Dual‐Targeting T6SS DNase Drives Bacterial Antagonism and Eukaryotic Apoptosis via the cGAS‐STING‐TNF Axis

Advanced Science, EarlyView.
The bacterial Type VI secretion system (T6SS) emerges as a sophisticated virulence mechanism, leveraging the dual‐function effector TkeA from Yersinia pseudotuberculosis. TkeA concurrently damages rival bacteria and host cell DNA, triggering the host's cGAS‐STING‐TNF pathway and inducing apoptosis.
Li Song, Lei Xu, Pengfei Zhang, Shuying Li, Yichen Qu, Yixin Zhao, Zhenkun Shi, Ruiqi Ma, Yongdong Li, Yi Chen, Yao Wang, Zhengfan Jiang, Gehong Wei, Xihui Shen   +13 more
wiley   +1 more source

Extreme fire severity interacts with seed traits to moderate post‐fire species assemblages

American Journal of Botany, EarlyView.
Abstract Premise Climate change is globally pushing fire regimes to new extremes, with unprecedented large‐scale severe fires. Persistent soil seed banks are a key mechanism for plant species recovery after fires, but extreme fire severity may generate soil temperatures beyond thresholds seeds are adapted to.
Michi Sano, Ryan Tangney, Alexandria Thomsen, Mark K. J. Ooi   +3 more
wiley   +1 more source

Microbiota-mediated competition between Drosophila species

Microbiome, 2023
Background The influence of microbiota in ecological interactions, and in particular competition, is poorly known. We studied competition between two insect species, the invasive pest Drosophila suzukii and the model Drosophila melanogaster, whose larval
Antoine Rombaut, Romain Gallet, Kenza Qitout, Mukherjy Samy, Robin Guilhot, Pauline Ghirardini, Brian P. Lazzaro, Paul G. Becher, Anne Xuéreb, Patricia Gibert, Simon Fellous   +10 more
doaj   +1 more source

Ant Mortality with Food Competition in Forests along a Temperature Gradient

Insects, 2022
The authors elucidated the relationship between temperature and mortality due to food competition in ant communities in forests. A field experiment was conducted using four bait types at six different oak forest sites with different mean annual ...
Tae-Sung Kwon, Dae-Seong Lee, Young-Seuk Park   +2 more
doaj   +1 more source

INTERSPECIFIC COMPETITION, ISLAND BIOGEOGRAPHY AND NULL HYPOTHESES [PDF]

Evolution, 1980
We conducted a field study of some of Darwin's Finches (Geospiza species) in order to assess the relative importance of interspecific competition and habitat features in determining the observed biogeographic, ecological and morphological characteristics of these species (Abbott et al., 1977). Strong et al. (1979) have criticized one of our methods and
Ian Abbott, Ian Abbott, Peter R. Grant, Peter R. Grant   +3 more
openaire   +5 more sources

Stomatal distribution and post‐fire recovery: Intra‐ and interspecific variation in plants of the pyrogenic Florida scrub

American Journal of Botany, EarlyView.
Abstract Premise Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss.
Genevieve Triplett, Aaron S. David
wiley   +1 more source

Interspecific Competition Between Sweet Sorghum and Weeds [PDF]

Planta Daninha, 2019
: While evidence is mounting that sweet sorghum [Sorghum bicolor (L.) Moench], an ethanol crop, may provide an alternative to sugarcane (Saccharum officinarum L.) on sugarcane lands under rehabilitation, little is known of its under production limiting ...
P.R.F. GIANCOTTI, M.P. NEPOMUCENO, T.S. OLIVEIRA, C. COSTA, P.L.C.A. ALVES   +4 more
doaj   +1 more source

Floral scent of artificial hybrids between two Schiedea species that share a moth pollinator

American Journal of Botany, EarlyView.
Abstract Premise In flowering plants, pollinators' ability to recognize chemical displays of hybrids may erode reproductive barriers. Hybrids may produce novel or altered floral scent blends that are unattractive, or scents similar to either parent that remain attractive and promote backcrossing.
John M. Powers, Stephen G. Weller, Ann K. Sakai, Diane R. Campbell   +3 more
wiley   +1 more source

Toward a macroevolutionary understanding of live‐leaf flammability in plant species of fire‐prone forests

American Journal of Botany, EarlyView.
Abstract Premise The flammability of live leaves in canopies varies considerably among plant species. Identifying macroevolutionary processes that shape variation in leaf flammability contributes to an understanding of the phylogenetic underpinnings of wildfire dynamics.
Brad R. Murray, Lyndle K. Hardstaff, Megan L. Murray, Zoe A. Xirocostas   +3 more
wiley   +1 more source