Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 78

Full-Text Articles in Entire DC Network

Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas R. Wood, Eric K. Bollinger Nov 1997

Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas R. Wood, Eric K. Bollinger

Eric K. Bollinger

Brown-headed Cowbirds (Molothrus ater) often remove host eggs, usually to the detriment of the host's reproductive success. We tested the hypothesis that host egg size and number influence the incubation efficiency of a parasitic egg. A single House Sparrow (Passer domesticus) or Brown-headed Cowbird egg was placed in each host nest (addition), and in some nests a host egg was removed as well (addition/removal). Hatching success and incubation length were measured to determine whether host-egg removal conferred an advantage in incubation efficiency compared to simple addition of a parasitic egg. Redwinged Blackbirds (Agelaius phoeniceus) and Chipping Sparrows (Spizella passerina) served …


Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas Wood, Eric Bollinger Nov 1997

Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas Wood, Eric Bollinger

Faculty Research & Creative Activity

Brown-headed Cowbirds (Molothrus ater) often remove host eggs, usually to the detriment of the host's reproductive success. We tested the hypothesis that host egg size and number influence the incubation efficiency of a parasitic egg. A single House Sparrow (Passer domesticus) or Brown-headed Cowbird egg was placed in each host nest (addition), and in some nests a host egg was removed as well (addition/removal). Hatching success and incubation length were measured to determine whether host-egg removal conferred an advantage in incubation efficiency compared to simple addition of a parasitic egg. Redwinged Blackbirds (Agelaius phoeniceus) and Chipping Sparrows (Spizella passerina) served …


Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas R. Wood, Eric K. Bollinger Nov 1997

Egg Removal By Brown-Headed Cowbirds: A Field Test Of The Host Incubation Efficiency Hypothesis, Douglas R. Wood, Eric K. Bollinger

Faculty Research & Creative Activity

Brown-headed Cowbirds (Molothrus ater) often remove host eggs, usually to the detriment of the host's reproductive success. We tested the hypothesis that host egg size and number influence the incubation efficiency of a parasitic egg. A single House Sparrow (Passer domesticus) or Brown-headed Cowbird egg was placed in each host nest (addition), and in some nests a host egg was removed as well (addition/removal). Hatching success and incubation length were measured to determine whether host-egg removal conferred an advantage in incubation efficiency compared to simple addition of a parasitic egg. Redwinged Blackbirds (Agelaius phoeniceus) and Chipping Sparrows (Spizella passerina) served …


Spiranthes Ovalis Lindl., Gordon C. Tucker Oct 1997

Spiranthes Ovalis Lindl., Gordon C. Tucker

Specimens by Name

No abstract provided.


Acer Ginnala Maxim., John E. Ebinger Oct 1997

Acer Ginnala Maxim., John E. Ebinger

Specimens by Name

No abstract provided.


Acer Ginnala Maxim., John E. Ebinger Oct 1997

Acer Ginnala Maxim., John E. Ebinger

Specimens by Name

No abstract provided.


Myrica Cerifera L., John E. Ebinger Oct 1997

Myrica Cerifera L., John E. Ebinger

Specimens by Name

No abstract provided.


Phyla Nodiflora (L.) Greene, John E. Ebinger Oct 1997

Phyla Nodiflora (L.) Greene, John E. Ebinger

Specimens by Name

No abstract provided.


Ampelopsis Arborea (L.) Koehne, John E. Ebinger Oct 1997

Ampelopsis Arborea (L.) Koehne, John E. Ebinger

Specimens by Name

No abstract provided.


Samolus Valerandi L., Bob Edgin Oct 1997

Samolus Valerandi L., Bob Edgin

Specimens by Name

No abstract provided.


Samolus Valerandi L., Gordon C. Tucker Sep 1997

Samolus Valerandi L., Gordon C. Tucker

Specimens by Name

No abstract provided.


Verbena L., Gordon C. Tucker Sep 1997

Verbena L., Gordon C. Tucker

Specimens by Name

No abstract provided.


Ampelopsis Cordata Michx., John E. Ebinger Aug 1997

Ampelopsis Cordata Michx., John E. Ebinger

Specimens by Name

No abstract provided.


Lysimachia Nummularia L., Bob Edgin Aug 1997

Lysimachia Nummularia L., Bob Edgin

Specimens by Name

No abstract provided.


Epipactis Helleborine (L.) Crantz, Gordon C. Tucker, Edwin H. Horning Aug 1997

Epipactis Helleborine (L.) Crantz, Gordon C. Tucker, Edwin H. Horning

Specimens by Name

No abstract provided.


Cannabis Sativa L., Brian Heinold Jul 1997

Cannabis Sativa L., Brian Heinold

Specimens by Name

No abstract provided.


Ficus Microcarpa L. F., Richard J. Abbott, Barbara S. Carlsward Jul 1997

Ficus Microcarpa L. F., Richard J. Abbott, Barbara S. Carlsward

Specimens by Name

No abstract provided.


Verbena Hastata L., Bob Edgin Jul 1997

Verbena Hastata L., Bob Edgin

Specimens by Name

No abstract provided.


Morus Alba L., Bob Edgin Jul 1997

Morus Alba L., Bob Edgin

Specimens by Name

No abstract provided.


Parthenocissus Quinquefolia (L.) Planch., Bob Edgin Jul 1997

Parthenocissus Quinquefolia (L.) Planch., Bob Edgin

Specimens by Name

No abstract provided.


Parthenocissus Quinquefolia (L.) Planch., Bob Edgin Jul 1997

Parthenocissus Quinquefolia (L.) Planch., Bob Edgin

Specimens by Name

No abstract provided.


Acer X Freemanii E. Murray [Rubrum × Saccharinum], Bob Edgin Jul 1997

Acer X Freemanii E. Murray [Rubrum × Saccharinum], Bob Edgin

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., Bob Edgin Jul 1997

Vitis Aestivalis F.Michx., Bob Edgin

Specimens by Name

No abstract provided.


Acer Rubrum Wats., Matthew Brooks Jul 1997

Acer Rubrum Wats., Matthew Brooks

Specimens by Name

No abstract provided.


Acer Saccharinum L., Matthew Brooks Jul 1997

Acer Saccharinum L., Matthew Brooks

Specimens by Name

No abstract provided.


Verbena Simplex Lehm., John E. Ebinger Jul 1997

Verbena Simplex Lehm., John E. Ebinger

Specimens by Name

No abstract provided.


Verbena Simplex Lehm., John E. Ebinger Jul 1997

Verbena Simplex Lehm., John E. Ebinger

Specimens by Name

No abstract provided.


Lysimachia Thyrsiflora L., Steven R. Hill Jul 1997

Lysimachia Thyrsiflora L., Steven R. Hill

Specimens by Name

No abstract provided.


Verbena Simplex Lehm., John E. Ebinger Jul 1997

Verbena Simplex Lehm., John E. Ebinger

Specimens by Name

No abstract provided.


Verbena Stricta Vent., John E. Ebinger Jul 1997

Verbena Stricta Vent., John E. Ebinger

Specimens by Name

No abstract provided.