Results 71 to 80 of about 1,164,479 (246)

Estimates of numbers of White sharks (Carcharodon carcharias) in Eastern and Southern South Africa : a post-moratorium assessment [PDF]

open access: yes, 2004
A moratorium was placed on fishing for white sharks (Carcharodon carcharias) in South Africa in 1991 prior to knowing the population status of this species.
Tress, Mary Elizabeth
core  

Breakthrough Innovation Under Fire: Hedge Fund Activism and Firms' Mitigation Strategies

open access: yesJournal of Product Innovation Management, EarlyView.
ABSTRACT Literature suggests that hedge fund activism is the most potent form of shareholder activism, often pressuring firms to prioritize shareholder value at the expense of innovation. Using a panel dataset of 302 listed U.S. firms with 2007 firm‐year observations from 2008 to 2020, we explore this dynamic in the context of technology‐ and market ...
David Bendig   +3 more
wiley   +1 more source

Evidence of a predation event on a tagged Mediterranean spearfish (Tetrapturus belone; Pisces, Istiophoridae), inferred from pop-up satellite tagging data

open access: yesAquatic Living Resources, 2020
The Strait of Messina is located at the centre of the Mediterranean Sea and is considered a biodiversity hotspot and an obligatory seasonal passage for different pelagic species such as sharks, marine mammals, and billfishes.
Malara Danilo   +7 more
doaj   +1 more source

Spartan Daily, October 8, 2014 [PDF]

open access: yes, 2013
Volume 143, Issue 18https://scholarworks.sjsu.edu/spartandaily/1517/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +2 more sources

Sexual dimorphisms in the dermal denticles of thelesser-spotted catshark, Scyliorhinus canicula (Linnaeus, 1758) [PDF]

open access: yes, 2013
The dermal layers of several elasmobranch species have been shown to be sexually dimorphic. Generally, when this occurs the females have thicker dermal layers compared to those of males. This sexual dimorphism has been suggested to occur as a response to
Adrian C Love   +4 more
core   +2 more sources

Taxonomic revision and conservation concerns of the trapezitine genus Croitana Waterhouse, 1932 (Lepidoptera: Hesperiidae) from Australia

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
Abstract Croitana Waterhouse, 1932 (Trapezitinae) is a small genus of skippers endemic to Australia, with most species restricted to semi‐arid and arid biomes where the larvae specialise on grasses (Poaceae) in the genera Neurachne R.Br., Enteropogon Nees and Austrostipa S.W.L. Jacobs & J.Everett.
Michael F. Braby
wiley   +1 more source

Predation Under Heat Stress: The Significance of Body Size to the Outcome of an Acarine Predator–Prey Interaction

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
(A) The predator Phytoseiulus persimilis and its prey Tetranychus urticae were reared under mild or extreme heat waves from egg to adulthood, which resulted in asymmetrical thermal shifts of adult body sizes in favour of prey under extreme heat waves. (B) Single couples of adult predators and prey, reared under mild heat waves interacted at mild heat ...
Andreas Walzer   +4 more
wiley   +1 more source

The slipper lobster, Scyllarides latus, uses apatite and fluorapatite to protect its sensory organules [PDF]

open access: yes, 2017
The cuticle of arthropods has been intensely studied not only to better understand the properties of a natural composite material, but also to understand how structural properties and mineral contributions to this composite offer a durable protective ...
Kunkel, Joseph   +2 more
core  

Shark lessons for stroke and heart attack victims

open access: yesJournal of Experimental Biology, 2019
![Figure][1] A grey carpet shark (top) and an epaulette shark (bottom). Photo credit: Jules Devaux. When humans suffer a stroke or heart attack, the supply of oxygen to the brain is interrupted, with disastrous consequences.
K. Knight
semanticscholar   +1 more source

Using biotelemetry to assess drone effects on whale sharks

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract The use of unoccupied aerial vehicles or drones for wildlife research has proliferated in recent years and they have proven to be a valuable tool for collecting data for population surveys, morphometric and body condition measurements, and for observing behavior.
Samantha D. Reynolds   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy