Results 41 to 50 of about 1,162,781 (353)

Cascading effects of forested area and isolation on seed dispersal effectiveness of rodents on subtropical islands

open access: yesJournal of Ecology, 2019
Habitat loss and fragmentation often leads to defaunation of large‐bodied mammals, and their loss could trigger release from top‐down control or food resource competition for small mammal seed dispersers, which in turn may affect the effectiveness of ...
Di Zeng   +4 more
semanticscholar   +1 more source

Moving from frugivory to seed dispersal: Incorporating the functional outcomes of interactions in plant–frugivore networks

open access: yesJournal of Animal Ecology, 2018
There is growing interest in understanding the functional outcomes of species interactions in ecological networks. For many mutualistic networks, including pollination and seed dispersal networks, interactions are generally sampled by recording animal ...
Benno I. Simmons   +7 more
semanticscholar   +1 more source

Quantifying patch‐specific seed dispersal and local population dynamics to estimate population spread of an endangered plant species

open access: yesEcology and Evolution, 2021
Aim Habitat loss and fragmentation impose high extinction risk upon endangered plant species globally. For many endangered plant species, as the remnant habitats become smaller and more fragmented, it is vital to estimate the population spread rate of ...
Jinlei Zhu   +3 more
doaj   +1 more source

Pre-dispersal seed loss in two Prosopis species (Fabacea: Mimosoidea) from the Monte Desert, Argentina

open access: yesEcología Austral, 2018
Pre-dispersal flters imposed on the seed stage can alter the likelihood of seed dispersal. We evaluate pre-dispersal seed loss due to predation by insects and abortion in Prosopis flexuosa and P. chilensis. This study was conducted in two protected areas
Silvina Velez   +2 more
doaj   +1 more source

Between-site differences in the scale of dispersal and gene flow in red oak. [PDF]

open access: yesPLoS ONE, 2012
Nut-bearing trees, including oaks (Quercus spp.), are considered to be highly dispersal limited, leading to concerns about their ability to colonize new sites or migrate in response to climate change.
Emily V Moran, James S Clark
doaj   +1 more source

Long Distance Seed Dispersal by Forest Elephants

open access: yesFrontiers in Ecology and Evolution, 2021
By dispersing seeds long distances, large, fruit-eating animals influence plant population spread and community dynamics. After fruit consumption, animal gut passage time and movement determine seed dispersal patterns and distances.
John R. Poulsen   +25 more
doaj   +1 more source

Survivin and Aurora Kinase A control cell fate decisions during mitosis

open access: yesMolecular Oncology, EarlyView.
Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir   +2 more
wiley   +1 more source

Oilbirds disperse large seeds at longer distance than extinct megafauna

open access: yesScientific Reports, 2021
The extinction of megafauna in the Neotropics is thought to have reduced the potential of large seeds to be dispersed over long distances by endozoochory (ingestion by animals), but some seed dispersal systems have not been considered.
Pablo R. Stevenson   +3 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

FGFR Like1 drives esophageal cancer progression via EMT, PI3K/Akt, and notch signalling: insights from clinical data and next‐generation sequencing analysis

open access: yesFEBS Open Bio, EarlyView.
Clinical analysis reveals significant dysregulation of FGFRL1 in esophageal cancer (EC) patients. RNAi‐coupled next‐generation sequencing (NGS) and in vitro study reveal FGFRL1‐mediated EC progression via EMT, PI3K/Akt, and Notch pathways. Functional assays confirm its role in tumor growth, migration, and invasion.
Aprajita Srivastava   +3 more
wiley   +1 more source

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