Evaluation of Gum‐line Recession for Aging Lynx ( Lynx canadensis )

2021 ◽  
Author(s):  
Michael J. L. Peers ◽  
Yasmine N. Majchrzak ◽  
Emily K. Studd ◽  
Allyson K. Menzies ◽  
Piia M. Kukka ◽  
...  
Keyword(s):  
Lynx Lynx ◽  
Lynx Canadensis

scholarly journals Spatio-temporal responses of Canada lynx (Lynx canadensis) to silvicultural treatments in the Northern Rockies, U.S.

2018 ◽  
Vol 422 ◽  
pp. 114-124 ◽  
Author(s):  
Joseph D. Holbrook ◽  
John R. Squires ◽  
Barry Bollenbacher ◽  
Russ Graham ◽  
Lucretia E. Olson ◽  
...  
Keyword(s):  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Canada Lynx ◽  
Silvicultural Treatments ◽  
Northern Rockies ◽  
Spatio Temporal

scholarly journals A LONGEVITY RECORD FOR CANADA LYNX, LYNX CANADENSIS, IN WESTERN MONTANA

2006 ◽  
Vol 66 (4) ◽  
pp. 535-536 ◽  
Author(s):  
Jay A. Kolbe ◽  
John R. Squires
Keyword(s):  
Western Montana ◽  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Canada Lynx

Behavioural responses of lynx to declining snowshoe hare abundance

1985 ◽  
Vol 63 (12) ◽  
pp. 2817-2824 ◽  
Author(s):  
Richard M. P. Ward ◽  
Charles J. Krebs
Keyword(s):  
Home Range Size ◽  
High Rate ◽  
Snowshoe Hare ◽  
Home Ranges ◽  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Long Distance ◽  
Behavioural Responses ◽  
Straight Line ◽  
Daily Travel

The behavioural responses of lynx (Lynx canadensis) to declines in snowshoe hare (Lepus americanus) abundance were examined in the southwestern Yukon. Between April 1982 and June 1984, 11 lynx were radio tagged and monitored in and near the Kluane Game Sanctuary. Lynx home range size increased from 13.2 to 39.2 km2 concurrent with a decline in snowshoe hare abundance from 14.7 to 0.2 hares/ha. Below about 0.5 hares/ha, several lynx abandoned their home ranges and became nomadic, although they remained within the general study area. Lynx concentrated their foraging efforts in areas of relatively high snowshoe hare abundance and abandoned these areas after hares declined. Straight-line daily travel distance remained constant at 2.2−2.7 km/day above 1.0 hare/ha. Below 1.0 hares/ha, straight-line daily travel distances increased rapidly, reaching 5.5 km/day at 0.2 hares/ha. Three of seven radio-tagged lynx dispersed 250 km or more from the study area during the 1982 period of rapid hare decline. No similar long-distance emigrations were recorded after hare densities stabilized at less than 1.0 hares/ha. Trapping mortality was responsible for the loss of seven of nine radio-tagged lynx that travelled outside the game sanctuary. One lynx probably starved during the winter or spring of 1984. The high rate of trapping mortality outside the game sanctuary suggests that refugia in wilderness areas are important in maintaining lynx populations during periods of low recruitment.

scholarly journals CANINE DISTEMPER VIRUS–ASSOCIATED ENCEPHALITIS IN FREE-LIVING LYNX (LYNX CANADENSIS) AND BOBCATS (LYNX RUFUS) OF EASTERN CANADA

2009 ◽  
Vol 45 (3) ◽  
pp. 611-624 ◽  
Author(s):  
Pierre-Yves Daoust ◽  
Scott R. McBurney ◽  
Dale L. Godson ◽  
Marco W. G. van de Bildt ◽  
Albert D. M. E. Osterhaus
Keyword(s):  
Canine Distemper Virus ◽  
Lynx Rufus ◽  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Canine Distemper ◽  
Eastern Canada ◽  
Free Living

56 EFFECTS OF PHYLOGENIC GENERA OF RECIPIENT CYTOPLASTS ON DEVELOPMENT AND VIABILITY OF CANADA LYNX (LYNX CANADENSIS) CLONED EMBRYOS

2010 ◽  
Vol 22 (1) ◽  
pp. 186 ◽  
Author(s):  
M. C. Gómez ◽  
J. I. Lyons ◽  
C. E. Pope ◽  
M. Biancardi ◽  
C. Dumas ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Donor Cell ◽  
Domestic Cat ◽  
Developmental Competence ◽  
Lynx Lynx ◽  
Phylogenetic Distance ◽  
Lynx Canadensis ◽  
Gestational Length ◽  
Canada Lynx ◽  
Oocyte Donor

Canada lynx (Lynx canadensis; CL) once occupied 16 states in the Unites States of America, but small populations remain in only 3 states. Interspecies-somatic cell nuclear transfer (Is-SCNT) offers the possibility of preventing their extinction; however, developmental constraints on Is-SCNT embryos are proportional to the phylogenetic distance between the donor cell and the recipient oocyte. Mitochondrial DNA (mtDNA) heteroplasmy may be involved in nuclear-cytoplasmic incompatibilities, thus inhibiting development of cloned embryos at the time of genomic activation. Minimizing the phylogenetic distance between the donor cell and recipient oocyte may enhance development of clone embryos. Caracal (Caracal caracal) may be suitable as an oocyte donor for SCNT and a recipient of CL cloned embryos because caracals hybridize with other felid species and share physical characteristics with the lynx family, marked by being previously classified in the lynx genera and having similar gestational length. To ensure compatibilities between the donor nuclei of the CL and the mitochondria of recipient oocytes, we (1) compared in vitro development of CL cloned embryos reconstructed with domestic cat (Felis catus; DSH) or caracal cytoplasts, (2) examined the mtDNA genotypes in CL cloned embryos, and (3) evaluated in vivo developmental competence of CL cloned embryos after transfer into caracal recipients. A total of 160 and 217 preovulatory oocytes were collected by laparoscopy from gonadotropin-treated caracals (n = 8) and DSH (n = 10) and used as recipient cytoplasts for reconstructing CL embryos. Results indicated that the phylogenetic genera of recipient cytoplasts did not affect embryo cleavage at Day 2 (caracal 50/55, 91% v. DSH 63/65, 97%), but development of CL cloned embryos to the blastocyst stage was higher when caracal oocytes were used as recipient cytoplasts (15/50; 30%) than with DSH cytoplasts (9/63, 14%; P < 0.05). The extent of mtDNA homoplasmy or heteroplasmy in CL cloned embryos was calculated by the number of single nucleotide polymorphisms (SNP) derived from the DSH or caracal oocyte donors and from the somatic cell donor CL. DNA was isolated from 25 and 35 CL cloned embryos reconstructed with caracal or DSH cytoplasts, respectively. All amplified products after PCR were sequenced and SNP analyzed. All CL embryos reconstructed with DSH cytoplasts were homoplasmic, carrying mtDNA only from the DSH oocyte donor (n = 35; SNP DSH = 2-6). Embryos reconstructed with caracal cytoplasts were homoplasmic for CL mtDNA (n = 9; SNPCL = 10-12) or heteroplasmic (caracal × CL, n = 17; SNPCL = 7-9; SNP caracal = 2-3). A total of 69 (mean = 34.5 ± 4.9 per caracal) and 70 (mean = 35.0 ± 9.8 per caracal) CL cloned embryos reconstructed with caracal and DSH cytoplasts, respectively, were transferred into 4 caracal recipients; however, no pregnancies were established. In summary, Is-SCNT between 2 phylogenetically closer species favors retention of the donor’s mitochondria, which might lead to a better nucleo-cytoplasmic interaction for reprogramming of donor nucleus.

scholarly journals Evaluating evolutionary history and adaptive differentiation to identify conservation units of Canada lynx (Lynx canadensis)

2019 ◽  
Vol 20 ◽  
pp. e00708
Author(s):  
Melanie B. Prentice ◽  
Jeff Bowman ◽  
Dennis L. Murray ◽  
Cornelya FC. Klütsch ◽  
Kamal Khidas ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Conservation Units ◽  
Canada Lynx ◽  
Adaptive Differentiation

Latitudinal gradient in cortisol concentrations in Canada lynx (Lynx canadensis) is not explained by diet

2019 ◽  
Vol 97 (8) ◽  
pp. 748-753
Author(s):  
C.M. Burstahler ◽  
C.V. Terwissen ◽  
J.D. Roth
Keyword(s):  
Stable Isotope ◽  
Food Limitation ◽  
Isotope Ratios ◽  
Stress Axis ◽  
Stable Isotope Ratios ◽  
Lynx Lynx ◽  
Alternative Prey ◽  
Lynx Canadensis ◽  
Canada Lynx

Food limitation is an important stressor for most wildlife, and many specialist consumers will expand their dietary niche to contend with preferred prey limitation. How these dietary responses feed back into stress-axis regulation, however, is unknown. If alternative prey does not sufficiently fill the energetic requirements normally satisfied by preferred resources, then long-term glucocorticoid concentrations could be elevated in individuals consuming alternative prey. We measured cortisol concentrations and stable isotope ratios (δ13C and δ15N) in hair of Canada lynx (Lynx canadensis Kerr, 1792) across their distribution to determine the influence of diet on glucocorticoids while controlling for harvest location. We calculated the Euclidean distance between lynx and regional snowshoe hare (Lepus americanus Erxleben, 1777) stable isotope ratios as an index of diet specialization. We found no relationship between this index and cortisol, suggesting that prey types are interchangeable for lynx in terms of long-term stress axis activation. However, lynx cortisol increased significantly towards the northwestern region of lynx distribution, contrasting with our prediction, and highlighting important considerations for future research. This combination of glucocorticoid and diet analyses suggests that dietary plasticity does not necessarily alter an individual’s experience of potential stressors, despite important implications to population and community dynamics.

scholarly journals Spatial and environmental influences on selection in a clock gene coding trinucleotide repeat in Canada lynx (Lynx canadensis)

2020 ◽  
Vol 29 (23) ◽  
pp. 4637-4652
Author(s):  
Melanie B. Prentice ◽  
Jeff Bowman ◽  
Dennis L. Murray ◽  
Kamal Khidas ◽  
Paul J. Wilson
Keyword(s):  
Clock Gene ◽  
Trinucleotide Repeat ◽  
Environmental Influences ◽  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Canada Lynx ◽  
Gene Coding

PYLORIC TRICHOBEZOAR IN A CANADIAN LYNX (LYNX CANADENSIS)

2013 ◽  
Vol 44 (4) ◽  
pp. 1111-1114 ◽  
Author(s):  
Jack Kottwitz ◽  
Amelia S. Munsterman
Keyword(s):  
Lynx Lynx ◽  
Lynx Canadensis

Patterns of ovarian and luteal activity in captive and wild Canada lynx (Lynx canadensis)

2010 ◽  
Vol 169 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Kerry V. Fanson ◽  
Nadja C. Wielebnowski ◽  
Tanya M. Shenk ◽  
Jennifer H. Vashon ◽  
John R. Squires ◽  
...  
Keyword(s):  
Lynx Lynx ◽  
Lynx Canadensis ◽  
Canada Lynx
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