Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16757
Selenium, boron, and heavy metals in birds from the Mexicali Valley, Baja California, Mexico Selenium, boron, and heavy metals in birds from the Mexicali Valley, Baja California, Mexico
No abstract available.
Authors
M.A. Mora, D. W. Anderson
Estimating annual survival and movement rates of adults within a metapopulation of roseate terns Estimating annual survival and movement rates of adults within a metapopulation of roseate terns
Several multistratum capture—recapture models were used to test various hypotheses about possible geographic and temporal variation in survival, movement, and recapture/resighting probabilities of 2399 adult Roseate Terns (Sterna dougallii) color—banded from 1988 to 1992 at the sites of the four largest breeding colonies of this species in the northeastern USA. Linear—logistic...
Authors
Jeffrey A. Spendelow, James D. Nichols, Ian C. T. Nisbet, Helen Hays, Grace Cormons, Joanna Burger, C. Safina, James E. Hines, Michael Gochfeld
Patrones de crecimiento de las tortugas gigantes (Geochelone ephippium) de la Isla de Pinzon, Galapagos Patrones de crecimiento de las tortugas gigantes (Geochelone ephippium) de la Isla de Pinzon, Galapagos
No abstract available.
Authors
R.A. Siaca, T. H. Fritts
Variations in growth of roseate tern chicks Variations in growth of roseate tern chicks
We measured growth parameters of Roseate Tern (Sterna dougallii) chicks at two contrasting colonies: Bird Island, Massachusetts, and Falkner Island, Connecticut, from 1987 through 1990. Differences in growth parameters among individual chicks are used to explore differences in parental performance, whereas differences in average growth parameters among colonies and years are used to...
Authors
I.C.T. Nisbet, J. A. Spendelow, Jeff S. Hatfield
Responses of amphibian populations to water and soil factors in experimentally-treated aquatic macrocosms Responses of amphibian populations to water and soil factors in experimentally-treated aquatic macrocosms
Survival of anuran embryos and tadpoles is reduced in acidic (pH
Authors
D. W. Sparling, T. P. Lowe, D. Day, K. Dolan
Minnesota wolf dispersal to Wisconsin and Michigan Minnesota wolf dispersal to Wisconsin and Michigan
Records are presented of three wolves that dispersed ≥200 km from northern Minnesota to the Minnesota-Wisconsin border, to southern Wisconsin, and to Michigan. This report documents that wolves cross major highways and other developed areas and that the recently recolonized wolf population in Wisconsin and Michigan could have originated from wolf populations in Minnesota other than those...
Authors
L.D. Mech, S. H. Fritts, D. Wagner
Changes in total body calcium and diet of breeding house sparrows Changes in total body calcium and diet of breeding house sparrows
We collected House Sparrows Passer domesticus around London, Ontario, estimated their total body calcium masses, food habits and egg production to test for the effects of endogenous calcium levels on control of clutch size. Before egg production began, calcium levels increased significantly and remained high through the end of egg laying, and then declined significantly after egg laying...
Authors
D.G. Krementz, C.D. Ankney
A complex alloantigen system in Florida sandhill cranes, Grus canadensis pratensis: Evidence for the major histocompatibility (B) system A complex alloantigen system in Florida sandhill cranes, Grus canadensis pratensis: Evidence for the major histocompatibility (B) system
The B blood group system constitutes the major histocompatibility complex (Mhc) in birds. The Mhc is a cluster of genes largely devoted to the processing and presentation of antigen. The Mhc is highly polymorphic in many species and, thus, useful in the evaluation of genetic diversity for fitness traits within populations of a variety of animals. Correlations found between particular Mhc
Authors
S.I. Jarvi, G.F. Gee, M.M. Miller, W.E. Briles
Heavy metals in seaducks and mussels from Misty Fjords National Monument in southeast Alaska Heavy metals in seaducks and mussels from Misty Fjords National Monument in southeast Alaska
Quartz Hill, in Misty Fjords National Monument near Ketchikan, Alaska, is the site of a proposed molybdenum-producing mine. To provide baseline data for use in post-development comparisons, we analyzed tissues of Barrow's goldeneyes (Bucephala islandica), common mergansers (Mergus merganser), and blue mussels (Mytilus edulis) for seven heavy metals that could potentially be released into...
Authors
J. C. Franson, P.S. Koehl, D.V. Derksen, T.C. Rothe, C.M. Bunck, John F. Moore
The role of the white-eyed vireo in the dispersal of Bursera fruit on the Yucatan Peninsula The role of the white-eyed vireo in the dispersal of Bursera fruit on the Yucatan Peninsula
White-eyed vireos (Vireo griseus) winter in the forests and secondary growth of the Yucatan Peninsula where Bursera simaruba (Burseraceae) is an abundant tree. Twenty-five per cent of all white-eyed vireos observed foraging visited Bursera trees. In addition, presence and abundance of territorial white-eyed vireos in small forest patches were correlated with the size of the Bursera crop...
Authors
R. Greenberg, M.S. Foster, L. Marquez-Valdelamar
Habitat selection by Cryptobepharus poecilopleurus (Scincidae) in the Mariana Islands Habitat selection by Cryptobepharus poecilopleurus (Scincidae) in the Mariana Islands
No abstract available.
Authors
M. J. McCoid, G.H. Rodda, R.A. Hensley, T. H. Fritts
DNA fingerprint similarity between female and juvenile brown-headed cowbirds trapped together DNA fingerprint similarity between female and juvenile brown-headed cowbirds trapped together
This DNA fingerprinting study investigates whether females of the brood parasite brown-headed cowbird, Molothrus ater, associate with their own juvenile offspring at feeding sites more often than would be expected by chance. Cowbirds lay their eggs in the nests of a variety of host species and, as far as is known, leave them to the care of foster parents. Using baited walk-in funnel...
Authors
D.C. Hahn, R.C. Fleischer