Keywords: Feeding Behavior (3)

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Focus Issue: Going for the Gut
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Focus Issue: Going for the Gut

This week’s issues of Science and Science’s STKE cover various aspects of ... (more)

This week’s issues of Science and Science’s STKE cover various aspects of gastrointestinal function and malfunction. Topics include the regulation of feeding behavior, host interactions with the organisms that colonize the gut, signaling pathways involved in gut barrier function and self-renewal, and factors associated with gastrointestinal inflammatory disorders and the pathogenesis of gastrointestinal cancers. (less)

Subject:
Life Science
Education
Material Type:
Reference
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Elizabeth M. Adler (American Association for the Advancement of Science;Associate Editor of Science's STKE REV)
Optimal Organism Design and Costs for Not Being Perfect
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Optimal Organism Design and Costs for Not Being Perfect

Optimal means the best, but organisms often solve multiple problems so any ... (more)

Optimal means the best, but organisms often solve multiple problems so any one problem is not solved best. An optimal function is produced for sugar ingestion rates versus sucrose concentration through butterfly proboscides and pipets by humans. A choice experiment is performed using probing by a butterfly proboscis toward one of two concentrations of sucrose. A non-optimal system is then studied: cylindrical container designs by businesses where surface area (cost) is least when height equals diameter. A frequency distribution of height/radius is constructed for recycled cans, and costs for variation are quantified from changes in surface area from the optimum. Cost variation for sugar intake rates is then measured from the function shape and related to nectar concentration variation. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Lesson Plans
Provider:
Syracuse University
Provider Set:
Association for Biology Laboratory Education (ABLE)
Author:
F. Reed Hainsworth
Size-Selective Feeding of Zooplankton by Fish
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Size-Selective Feeding of Zooplankton by Fish

This laboratory exercise is an experiment to test the size-selective predation hypothesis. ... (more)

This laboratory exercise is an experiment to test the size-selective predation hypothesis. Bluegill sunfish are placed in an aquarium containing a range of sizes of a crustacean, Daphnia, and fish stomach contents are examined to determine which size range was eaten. (less)

Subject:
Science and Technology
Ecology
Forestry and Agriculture
Geoscience
Education
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Cornell University
Ichthyological Associates
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Association for Biology Laboratory Education (ABLE)
Association for Biology Laboratory Education (ABLE)
Author:
Madelyn Stafford-Glase (Ichthyological Associates, Inc.;)
Nelson Hairston, Jr (Cornell University;)
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2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni smelborp gnivlos rof seuqinhcet gnipoleved no si sisahpmE .scipot decnavda detceles dna scihparg retupmoc ,gnihcraes dna gnitros ,serutcurts atad ,sdohtem laciremun ,secafretni resu lacihparg ,stpecnoc gnimmargorp revoc smelborp gnimmargorp ylkeeW .esruoc eht fo sucof eht si tnempoleved dna ngised erawtfos detneiro-tcejbO .snoitacilppa cifitneics dna gnireenigne rof sdohtem lanoitatupmoc dna tnempoleved erawtfos latnemadnuf stneserp esruoc sihT (less)