Results 231 to 240 of about 1,341,900 (301)

Seasonal space use of gray wolves is concurrent with primary prey. [PDF]

Oecologia
Wehr NH, Moore SA, Romanski MC, Isaac EJ, Kellner KF, Kautz TM, Millspaugh JJ, Belant JL.   +7 more
europepmc   +1 more source

Area‐restricted search under realistic constraints

Oikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source

Beef production in integrated crop-livestock systems of Uruguay: assessing economic, environmental, and food security trade-offs. [PDF]

Anim Front
Pereyra-Goday F, Ayala W, Castillo J, Jebari A, McAuliffe GA, Lee MRF, Rovira P, Takahashi T, Terra JA, Rivero MJ.   +9 more
europepmc   +1 more source

Coexisting ant species differ in ability to meet their intrinsic nutritional needs

Oikos, EarlyView.
Coexisting species are often assumed to reduce competition by foraging for foods that differ in nutrient composition, but few studies test whether field nutritional differences correspond to intrinsic differences in macronutrient selectivity. We compared field estimates of worker trophic position (tissue isotopes: δ15N) and worker tissue stoichiometry (
Hannah L. Riskas, Jonathan Z. Shik, Lily L. Leahy, Ian J. Wright, Heloise Gibb   +4 more
wiley   +1 more source

Genomic insights into <i>Lolium multiflorum</i> diversity for forage breeding in Andean livestock systems. [PDF]

Front Plant Sci
Bobadilla LG, Ortiz R, Castillo G, Matias FI, Gutiérrez L, Valqui L, Carrasco-Chilón W, Díaz-Valderrama JR, Venancio TM, Alava EI, Castillo MS, Vásquez HV.   +11 more
europepmc   +1 more source

A recipe for recovery: diet as a decisive tool in species conservation

Oikos, EarlyView.
Animals consume foods in specific quantities and ratios to meet a multi‐dimensional nutrient target that maximizes their fitness. Attempts to reach this target in an ever‐changing nutritional landscape often influence animal foraging behavior, habitat choice, and food‐web interactions. Consequently, understanding the nutritional ecology of a species is
Noa Lavie, Yael Levinson, Jessica M. Rothman, Dror Hawlena   +3 more
wiley   +1 more source

Assessment of the Role of Fire Regime as a Determinant of Habitat Selection by Medium-Sized Grazers in a West African Savanna. [PDF]

Ecol Evol
Zoffoun OG, Djagoun CAMS, Linsoussi CA, Sogbohossou EA.   +3 more
europepmc   +1 more source

Trait‐mediated thermal responses and multi‐axis spatiotemporal niche partitioning between coexisting top predators in ponds

Oikos, EarlyView.
Understanding how physiological constraints scale up to realized niche differences remains a central challenge in functional ecology. Temperature strongly influences metabolic performance, activity, and habitat selection in ectotherms, yet few field studies quantify how thermal responses interact with diel and habitat structure to shape predator ...
Jason R. Rohr
wiley   +1 more source

Variation in nutritional quality of Vicia sativa across climatic gradients and development of a comprehensive forage quality index. [PDF]

PLoS One
Xu W, Mao Z.
europepmc   +1 more source

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

Oikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía, Jordi Margalef‐Marrasé, Marc Riera, Jordina Belmonte, Julia Lanner, Sonja Mader, David Navarro, Ricardo Caliari Oliveira, Rut Puigdemunt, Carlos Hernández‐ Castellano   +9 more
wiley   +1 more source