Results 91 to 100 of about 13,050 (259)

Loss, persistence and reversal of phenotypic traits

Biological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni, Giuseppe Fusco, Filippo Nicolini, Heather Bruce, Andrea Luchetti   +4 more
wiley   +1 more source

What drives animal responses to high severity fire? The role of functional traits

Biological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux, Trent D. Penman, Victoria A. Reynolds, Matthew H. Swan   +3 more
wiley   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Nonlinear permuted Granger causality

Canadian Journal of Statistics, EarlyView.
Abstract Granger causality is an established, contentious method that seeks causal temporal connections via association and precedence. While not true causal inference, it assists in mapping networks of information flow that may warrant further study.
Noah D. Gade, Jordan Rodu
wiley   +1 more source

A Qualitative Model Demonstrating the Adaptation of Amphibians to Semi-Arid and Arid Habitats: Comparing the Green Toad Bufotes sitibundus (Pallas, 1771) and Pelophylax bedriagae (Camerano, 1882)

Animals
In this brief article, the green toad (Bufotes sitibundus) and the Levant water frog (Pelophylax bedriagae) were compared to better understand the adaptations needed by amphibians, specifically the green toad, to survive in arid regions and to inhabit a ...
Gad Degani
doaj   +1 more source

The SIR Model in a Moving Population: Propagation of Infection and Herd Immunity

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT In a collection of particles performing independent random walks on Zd$\mathbb {Z}^d$ we study the spread of an infection with SIR dynamics. Susceptible particles become infected when they meet an infected particle. Infected particles heal and are removed at rate ν$\nu$.
Duncan Dauvergne, Allan Sly
wiley   +1 more source

Biophysical processes of morphogenesis in lizard lungs

Developmental Dynamics, EarlyView.
Abstract Background The lungs of squamate reptiles (lizards and snakes) are highly diverse, exhibiting single chambers, multiple chambers, transitional forms with two to three chambers, along with a suite of other anatomical features, including finger‐like epithelial projections into the body cavity known as diverticulae.
Kaleb Hill, Aaron H. Griffing, Michael A. Palmer, Bezia Lemma, Aria S. Lupo, Tony Gamble, Natalia A. Shylo, Andrej Košmrlj, Paul A. Trainor, Celeste M. Nelson   +9 more
wiley   +1 more source

Potential for the American toad (Anaxyrus americanus) to contribute to biological control in a vegetable agroecosystem

Agrosystems, Geosciences & Environment
The American toad (Anaxyrus americanus) is a native insectivorous amphibian common in agricultural fields in eastern North America. Past research on this and related species suggests potential for positive or negative effects on pest populations ...
Margaret R. Douglas, Madeline DuBoyce, Valerie Kuppek, Abigail Marich, Mairi K. P. Poisson, Aleah Spiro, Scott Boback   +6 more
doaj   +1 more source

Mosaic activation of the zebrafish hsp70l heat shock promoter: Implications for interpreting transgenes

Developmental Dynamics, EarlyView.
Abstract Background The promoters and enhancers of heat shock genes, such as the 1.5‐kb promoter of the zebrafish hsp70l gene, are valuable tools for temporal activation of transgenes. It has been widely purported that heat shock treatments result in ubiquitous expression of hsp70l‐driven transgenes.
Jong‐Su Park, Xiangyun Wei
wiley   +1 more source

Physiological responses of Lizard, Toad and Pigeon during rainy season in tropical savanna climate

Journal of Basic and Applied Zoology
Background This study investigated the adaptation mechanisms of Pigeons, Toads and Lizards during the rainy season in tropical savanna climates. Male Agama Lizards (Agama agama), Afep Pigeons (Columba unicincta) and Toads (Sclerophrys perreti) were ...
Ayodeji Folorunsho Ajayi, Oluwadare Joshua Ogundipe, Lukman Olawale Ajayi, Abiodun Oyerinde, Omolola Funke Akinpelu   +4 more
doaj   +1 more source