Zobrazeno 1 - 10
of 750
pro vyhledávání: '"J. D. Matthews"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Ecological applications of compound-specific stable isotope analysis (CSIA) of amino acids (AAs) include 1) tracking carbon pathways in food webs using essential AA (AAESS) δ13C values, and 2) estimating consumer trophic position (TP) by co
Externí odkaz:
https://doaj.org/article/cf486ed3f4a947eb98e761072437840d
Autor:
Matthew Fuirst, Kyle H. Elliott, Steven H. Ferguson, Aaron T. Fisk, Les N. Harris, Kevin J. Hedges, Kevin B. Jacobs, Kelsey F. Johnson, Tracey N. Loewen, Cory J. D. Matthews, C.J. Mundy, Andrea Niemi, Wesley R. Ogloff, Cortney A. Watt, David J. Yurkowski
Publikováno v:
Arctic Science, Vol 10, Iss 1, Pp 34-47 (2024)
Temporal variation in food web structure is widespread among highly seasonal environments, such as the Arctic, and is driven by changes in resource availability. Variation in resource availability can lead to species differences in diet composition,
Externí odkaz:
https://doaj.org/article/720268b068c04072912c7ecf5d16aa5e
Prolonged baleen hormone cycles suggest atypical reproductive endocrinology of female bowhead whales
Publikováno v:
Royal Society Open Science, Vol 10, Iss 7 (2023)
Serial measurements of hormone concentrations along baleen plates allow for reconstructions of mysticete whale reproductive histories. We assessed gestation and calving interval in bowhead whales (Balaena mysticetus) by measuring progesterone, oestra
Externí odkaz:
https://doaj.org/article/49a25e7c7604484ea621a3fb7fd0a66b
Autor:
Owen, T. H.
Publikováno v:
The Commonwealth Forestry Review, 1964 Sep 01. 433 (117), 260-261.
Externí odkaz:
https://www.jstor.org/stable/42603209
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Abstract Killer whales (Orcinus orca) are distributed widely in all oceans, although they are most common in coastal waters of temperate and high-latitude regions. The species’ distribution has not been fully described in the northwest Atlantic (NW
Externí odkaz:
https://doaj.org/article/9e23aae16486422989f58085f724ff0a
Publikováno v:
Ecology and Evolution, Vol 10, Iss 7, Pp 3450-3462 (2020)
Abstract Compound‐specific stable isotope analysis (CSIA) of amino acids (AAs) has been rapidly incorporated in ecological studies to resolve consumer trophic position (TP). Differential 15N fractionation of “trophic” AAs, which undergo trophic
Externí odkaz:
https://doaj.org/article/cc7c55beb3594673b8c0e078cc693a83
Publikováno v:
PLoS ONE, Vol 16, Iss 4, p e0249641 (2021)
Ecotypes are groups within a species with different ecological adaptations than their conspecifics. Eastern North Pacific (ENP) killer whale (Orcinus orca) ecotypes differ in their diet, behavior, and morphology, but the same is not known for this sp
Externí odkaz:
https://doaj.org/article/e1b23e5e4a11434ab6f2235c69466490
Autor:
G. M. Idorn
Publikováno v:
Materials and Structures. 26:245-246
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f7e64ea486d93acb2ba8feaed1ffbbd
https://doi.org/10.1007/bf02472618
https://doi.org/10.1007/bf02472618
Publikováno v:
PLoS ONE, Vol 15, Iss 6, p e0235114 (2020)
Nursing and weaning periods are poorly understood in cetaceans due to the difficulty of assessing underwater behaviour in the wild. However, the onset and completion of weaning are critical turning points for individual development and survival, with
Externí odkaz:
https://doaj.org/article/9e43bc6e630849c09a7773c696702768
Publikováno v:
Evolutionary Biology.
A widespread pattern in vertebrate life-history evolution is for species to evolve towards either fast or slow life histories; however, the underlying causes of this pattern remain unclear. Toothed whales (Odontoceti) are a diverse group with a range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15f18089e5b3ecacaf940534e326d794
https://doi.org/10.1007/s11692-023-09605-4
https://doi.org/10.1007/s11692-023-09605-4