Results 111 to 120 of about 184,167 (251)

Experimental and field evidence indicate that islet‐nesting tundra birds experience reduced nest predation and benefit indirectly from high snow goose densities

Oikos, EarlyView.
Landscape features can shape the occurrence and strength of predator–prey interactions by influencing predation risk and prey distribution. In the High Arctic, some bird species select nesting sites with physical features that impede access for their main terrestrial predator, the Arctic fox.
Marylou Beaudoin, Andréanne Beardsell, Éliane Duchesne, Madeleine‐Zoé Corbeil‐Robitaille, Pierre Legagneux, Dominique Berteaux, Joël Bêty   +6 more
wiley   +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

Breeding in a den of thieves: pros and cons of nesting close to egg predators

Ecosphere, 2016
Breeding success of many Arctic‐breeding bird populations varies with lemming cycles due to prey switching behavior of generalist predators. Several bird species breed on islands to escape from generalist predators like Arctic fox Vulpes lagopus, but ...
Jimmy deFouw, Roeland A. Bom, Raymond H. G. Klaassen, Gerard J. D. M. Müskens, Peter P. deVries, Igor Yu. Popov, Yakov I. Kokorev, Barwolt S. Ebbinge, Bart A. Nolet   +8 more
doaj   +1 more source

Nest attentiveness drives nest predation in arctic sandpipers

, 2020
Most birds incubate their eggs to allow embryo development. This behaviour limits the ability of adults to perform other activities. Hence, incubating adults trade off incubation and nest protection with foraging to meet their own needs.
Reneerkens, J.
core   +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

Effects of storms, angling, and nest predation during angling on smallmouth bass (Micropterus dolomieu) nest success

, 2005
in English and FrenchWe studied how storms, angling, and nest predation during angling affected smallmouth bass (Micropterus dolomieu) nest survival in the Bass Islands, Lake Erie, Ohio, USA.
Elizabeth A Marschall, Leonard, Nancy J., Geoffrey B Steinhart, Marschall, Elizabeth A., Stein, Roy A., Roy A Stein, Nancy J Leonard, Steinhart, Geoffrey B.   +7 more
core   +2 more sources

Unshared on the top: strong segregation of pathogen communities between western honey bees and wild bees in a retreating glacier foreland

Oikos, EarlyView.
Shared flowers can facilitate pathogen transmission between managed honey bees and wild bees, yet this process remains poorly understood in ecosystems undergoing rapid environmental change. Using a glacier foreland in Switzerland, we present the first study on how glacier retreat stages and bee life‐history traits influence pathogen occurrence across ...
Andrea Ferrari, Giovanni Cilia, Matteo Conti, Bao Ngan Tu, Nora Khelidj, Gianalberto Losapio, Carlo Polidori   +6 more
wiley   +1 more source

Testing urban edge effects: Nest predation rates are higher in areas further from the boundary of a suburban park

Avian Research
Urban green spaces and parks offer opportunities for retaining and increasing bird richness, diversity, and species abundance. However, urbanisation influences predator–prey interactions, leading to high predation rates in urban areas, in the UK notably ...
Ailun Wang, Tara J. Pirie, Mark D.E. Fellowes   +2 more
doaj   +1 more source

Integrating vision, audition and olfaction traits: a roadmap for contrasting sensory ecologies of birds and rodents

Oikos, EarlyView.
Sensory ecology seeks to understand how organisms detect and use information from their environment, yet comparative analyses across multiple sensory modalities remain rare. Here, we present a roadmap for contrasting the sensory ecologies of birds and rodents using surrogate morphological and acoustic traits associated with vision, audition, and ...
Raphaël Proulx, Josyane Brouillard, Laurie Provençal, Frédérick Girard, Jessica Bertolacci, Youri Simard   +5 more
wiley   +1 more source

Video documentation of predators and nest defense at Bachman's Sparrow nests

Avian Conservation and Ecology, 2019
Bachman's Sparrow (Peucaea aestivalis) is a species of conservation concern throughout its range and an effective indicator of healthy pine savanna ecosystems in the southeastern United States.
Kristen M. Malone, Harrison H. Jones, Adriana M. Betancourt, Theron M. Terhune II, Kathryn E. Sieving   +4 more
doaj