Results 141 to 150 of about 143,183 (293)

Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High‐Mountain Ecosystem

Integrative Zoology, EarlyView.
Water is a limiting resource for birds in arid ecosystems. Individual birds differ strongly in how they use shared water sources, with drinking behavior increasing with temperature. Behavioral differences, hierarchy, and social context ultimately shape unequal access to water within the population. ABSTRACT Water availability strongly constrains animal
Tamara Burgos, Juan P. González‐Varo, Juan Carlos Illera, Manuel Nogales, Beatriz Rumeu   +4 more
wiley   +1 more source

Spatial Ecology of Livestock Protection Dogs, Sheep, and Pampas Foxes in Agroecosystem of Central Argentina

Animals
Livestock protection dogs (LPDs) are specifically bred to protect livestock, such as sheep, from predators. These dogs’ primary defense mechanisms include directional actions that deter predators but no attack.
Sabrina Daniela Martínez, Mauro Lucherini, Nicolás Carmelo Caruso, Emma Beatriz Casanave, Estela Maris Luengos Vidal   +4 more
doaj   +1 more source

Some Tuco‐Tucos Hide More Than Others: An Integrative Approach Reveals Cryptic Diversity in Ctenomys (Rodentia: Ctenomyidae) From Central Argentina

Integrative Zoology, EarlyView.
Here, we adopt an integrative framework (molecular phylogenetics and geometric morphometrics) to reassess patterns of diversity and differentiation across this region. We analyzed cytochrome b sequences and quantified cranial shape variation. Our analyses indicate the presence of three species groups (mendocinus, talarum, and tucumanus) and two ...
Facundo Contreras, José A. Coda, Daniela Pereyra, José W. Priotto, Fernando J. Mapelli   +4 more
wiley   +1 more source

Nocturnal Behavior of Wintering Common Cranes (Grus grus) Under Varying Environmental Conditions

Integrative Zoology, EarlyView.
For diurnal species, nighttime represents a critical ecological boundary. Understanding the ecological determinants of nocturnal activity in taxa traditionally regarded as inactive after dusk is essential for elucidating the adaptive significance of nighttime behavior. We examined how night phase, nocturnal brightness (moon illumination and cloud cover)
Flavio Monti, Marco Ciolfi, Giuseppe Anselmi, Niccolò Fattorini, Francesco Ferretti   +4 more
wiley   +1 more source

From Predation to Production Post-conflict [PDF]

This paper builds an analytical framework that models predation (banditry) and production as part of the choice of a rational utility-maximising agent. Aggregating this choice up for society produces equilibrium outcomes ranging from Utopia (where no one
Satish Chand
core  

Local outbreaks of Operophtera brumata and Operophtera fagata cannot be explained by low vulnerability to pupal predation [PDF]

, 2013
One of the unresolved questions in studies on population dynamics of forest Lepidoptera is why some populations at times reach outbreak densities, whereas others never do.
Ruohomäki, Kai, Klemola, Tero, Käär, Miia, Heisswolf, Annette   +3 more
core  

Pest‐preservation paradox among insects

Conservation Biology, EarlyView.
The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways, Charl Deacon, René Gaigher, James S. Pryke   +3 more
wiley   +1 more source

First record of cannibalism in the red-finger rubble crab Eriphia gonagra (Fabricius, 1781) (Decapoda, Eriphidae) in a natural environment

Discover Animals
Cannibalism is considered a natural intraspecific interaction, being a response of organisms to available food resources, or in other cases, associated with high levels of environmental stress.
Camylle Santos Matos, Alyne Dias da Silva, Noumie Alves Machado, Pablo Augusto Gulhões da Silva, Pedro Lucas Souza de Andrade, Carlos Eduardo Rocha Duarte Alencar   +5 more
doaj   +1 more source

Five‐year assessment of wolf translocation to Isle Royale National Park, 2018–2023

Conservation Science and Practice, EarlyView.
The National Park Service used a variety of methods to monitor the success of a restored wolf population on Isle Royale National Park. Abstract Gray wolf (Canis lupus) translocation is a common approach for restoring ecological function through top‐down regulation.
Adia R. Sovie, Mark C. Romanski, Dean E. Beyer Jr, Hailey M. Boone, Edmund J. Isaac, Kenneth F. Kellner, David Marneweck, Seth A. Moore, Elizabeth K. Orning, Brent R. Patterson, Lynette R. Potvin, Michelle L. Verant, Jerrold L. Belant   +12 more
wiley   +1 more source

The Importance of the Larval Parasitoid Actia interrupta (Diptera: Tachinidae) in Low Density Eastern Spruce Budworm Populations

Entomologia Experimentalis et Applicata, EarlyView.
Actia interrupta is an important larval tachinid parasitoid during low‐density populations of the eastern spruce budworm. In the late 1980s during the outbreak collapse, Meteorus trachynotus was initially the most important species, but was replaced by A. interrupta. Host patch size and density had no impact on the parasitism rates by A.
Véronique Martel, Jacques Régnière, Jean‐Claude Thireau   +2 more
wiley   +1 more source