Relational Learning in Glaucous-Winged Gulls (Larus glaucescens)
نویسندگان
چکیده
منابع مشابه
Plastic consumption and diet of Glaucous-winged Gulls (Larus glaucescens).
We analyzed dietary habits and presence of plastic in 589 boluses of Glaucous-winged Gulls (Larus glaucescens) as one of two studies on the impact of plastics on marine life in the US Salish Sea. Volunteers dissected boluses collected (2007-2010) from Protection Island, Washington. Components were separated into 23 food and non-food categories. Plastic was found in 12.2% of boluses, with plasti...
متن کاملHabitat Patch Occupancy Dynamics of Glaucous-winged Gulls (larus Glaucescens) Ii: a Continuous-time Model
The diurnal distribution and abundance dynamics of loafing Glaucous-winged Gulls (Larus glaucescens) were examined at Protection Island National Wildlife Refuge, Strait of Juan de Fuca, Washington. Asynchronous movement of gulls among three habitat patches dedicated to loafing was modeled as a function of environmental variables using differential equations. Multiple time scale analysis led to ...
متن کاملHabitat Patch Occupancy Dynamics of Glaucous-winged Gulls (larus Glaucescens) I: a Discrete-time Model
Diurnal habitat occupancy dynamics of Glaucous-winged Gulls were evaluated in a system of six habitats on and around Protection Island, Washington. Data were collected on the rates of gull movement between habitat patches, and from these data the probabilities of transitions between habitats were estimated as functions of tide height and time of day. A discrete-time matrix model based on the tr...
متن کاملEnErgy IntakE, klEptoparasItIsm rIsk, and prEy ChoICE by glauCous-wIngEd gulls (LARUS GLAUCESCENS) foragIng on sEa stars
—Energy gain is thought to play a central role in prey selection by most foragers, but it may conflict with food theft avoidance and be constrained by undeveloped foraging skills. We investigated predation by the Glaucous-winged Gull (Larus glaucescens) on the ecologically important Ochre Sea Star (Pisaster ochraceus). We tested the hypothesis that Pisaster size selection by gulls was based on ...
متن کاملSpatial and Temporal Variation in the Dietary Ecology of the Glaucous-winged Gull Larus Glaucescens in the Pacific Northwest
The widespread distribution of contaminants in marine environments is of global concern, particularly for those compounds that do not readily degrade and are relatively volatile, such as persistent organic pollutants (POPs) (Jones & De Voogt 1999, Tanabe 2004). POPs are a group of lipophilic compounds that accumulate in fatty tissues of organisms, leading to their bioaccumulation and biomagnifi...
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ژورنال
عنوان ژورنال: The Spanish journal of psychology
سال: 2012
ISSN: 1138-7416,1988-2904
DOI: 10.5209/rev_sjop.2012.v15.n3.39380