Communal Oviposition in the Northern Two-lined Salamander (<em>Eurycea bislineata</em>) in Algonquin Provincial Park, Ontario

While surveying a stream for amphibians in Algonquin Provincial Park, Ontario, Canada, I discovered a clutch of Two-lined Salamander (Eurycea bislineata) eggs on the underside of a partially submerged rock. I counted 165 eggs and measured them using ImageJ from a digital photograph. The quantity of eggs is far greater than any known clutch size for this species, and it was likely deposited by more than one female. This is the first report of communal oviposition in this species in Canada.

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Plant Climbing in the Northern Two-lined Salamander, Eurycea bislineata, in Algonquin Provincial Park, Ontario

The Canadian Field-Naturalist ◽

10.22621/cfn.v127i1.1411 ◽

2013 ◽

Vol 127 (1) ◽

pp. 67 ◽

Cited By ~ 3

Author(s):

David L. LeGros

Keyword(s):

Food Source ◽

Foraging Habitat ◽

Climbing Plants ◽

Eurycea Bislineata ◽

Provincial Park

Lungless salamanders (Plethodontidae) are often active on the surface on rainy evenings, and some species may even climb vegetation in search of prey. Here I report the first investigation of plant climbing in the Northern Two-lined Salamander (Eurycea bislineata). Surveys were carried out along Bat Lake Creek in Algonquin Provincial Park over four rainy nights in summer 2007 for Northern Two-lined Salamanders. I compared the numbers of Northern Two-lined Salamanders foraging on the ground with those climbing on plants, and over half of the Northern Two-lined Salamanders were climbing plants. This behaviour may provide the Northern Two-lined Salamander with access to an underutilized food source, and plants may represent an additional foraging habitat for this species.

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Body size, age distribution, and reproduction in a northern population of wood turtles (Clemmys insculpta)

Canadian Journal of Zoology ◽

10.1139/z92-070 ◽

1992 ◽

Vol 70 (3) ◽

pp. 462-469 ◽

Cited By ~ 37

Author(s):

Ronald J. Brooks ◽

Cathy M. Shilton ◽

Gregory P. Brown ◽

Norman W. S. Quinn

Keyword(s):

Body Size ◽

Clutch Size ◽

Partial Correlation ◽

Age Distribution ◽

Egg Mass ◽

Female Size ◽

After Effects ◽

Mean Width ◽

Wood Turtles ◽

Provincial Park

A population of the wood turtle (Clemmys insculpta) was studied on the east side of Algonquin Provincial Park, Ontario, from 1987 to 1990. A total of 77 adults (56 females, 21 males) and 13 juveniles were captured, measured, and individually marked. Age at maturity was 17–18 years at a minimum carapace length of 185 mm for females and 199 mm for males. Our data supported the hypothesis that turtles in northern populations are larger and older at maturity than are those in southern populations. For 21 nests, mean clutch size was 8.8 eggs and egg mass was 96 g. Predators destroyed 15 of 17 nests in 1990, and had injured 60% of adult turtles observed. Therefore, our population had low recruitment, few juveniles, and high levels of predation on nests and adults. Comparisons among females refuted two predictions from optimal egg size theory. Mean width and mass, but not length, of eggs correlated positively with female size, and correlated positively with clutch size, even after effects of body size were removed by partial correlation. However, smaller females in the population had relatively longer eggs than did larger females, whereas the Algonquin females have absolutely smaller eggs than do much smaller females in a New Jersey population.

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A basal bird from the Campanian (Late Cretaceous) of Dinosaur Provincial Park (Alberta, Canada)

Geological Magazine ◽

10.1017/s0016756810000129 ◽

2010 ◽

Vol 147 (3) ◽

pp. 469-472 ◽

Cited By ~ 4

Author(s):

ERIC BUFFETAUT

Keyword(s):

Late Cretaceous ◽

High Latitude ◽

Western Canada ◽

First Report ◽

Dinosaur Park Formation ◽

Provincial Park

AbstractA fragmentary bone from the Dinosaur Park Formation (Campanian) of Dinosaur Provincial Park (Alberta, Canada), originally described as a pterosaur tibiotarsus, is reinterpreted as the distal end of the tibiotarsus of a basal bird, probably an enantiornithine, on the basis of several distinctive characters. It is the first report of such a bird from the Dinosaur Park Formation and shows that this group was present, together with various more derived ornithurines, in the relatively high-latitude environments of Late Cretaceous western Canada.

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Reporte del tamaño de una camada de barisia imbricata (wiegmann, 1828) (reptilia: anguidae)

ACTA ZOOLÓGICA MEXICANA (N S ) ◽

10.21829/azm.2011.273782 ◽

2011 ◽

Vol 27 (3) ◽

Author(s):

Gustavo F. Aguilar-Martínez

Keyword(s):

Sea Level ◽

Clutch Size ◽

First Report ◽

Large Clutch

The genus Barisia is endemic to Mexico occurring in temperate regions, at elevations between 2200-3800 m above sea level. Few records of clutch size of the species of Barisia are available, in particular for B. imbricata. The first report of a large clutch size (15 neonates alive) is given for this species.

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THE NEST AND EGGS OF BLACK-CAPPED SPARROW ARREMON A. ABEILLEI (PASSERELLIDAE) IN SOUTHWESTERN ECUADOR

Revista Ecuatoriana de Ornitología ◽

10.18272/reo.v0i3.1059 ◽

2018 ◽

Author(s):

Harold Francis Greeney

Keyword(s):

Leaf Litter ◽

Clutch Size ◽

Reproductive Biology ◽

Brood Parasitism ◽

Nest Architecture ◽

Sloping Ground ◽

First Report ◽

Molothrus Bonariensis ◽

Egg Coloration ◽

Pure White

I describe the nest and egg of Black-capped Sparrow (Arremon a. abeillei), providing the first substantiated information on its reproductive biology and the first report of brood parasitism by Shiny Cowbird (Molothrus bonariensis). I studied 7 nests at two locations in southwestern Ecuador. Nests are enclosed, oven-shaped structures with a side entrance, concealed amongst leaf litter on either flat sloping ground. Confirmed clutch size at one nest was 4 eggs, and 13 eggs varied from very pale buff to pure white, sparsely marked with dark brown or black flecks, small spots, and short scrawls. Nest architecture is similar to that of congeners traditionally placed within Arremon and Lysurus, and to members of the genus Arremonops, but differs from the open-cup nests of congeners historically placed in the genera Buarremon or Atlapetes. Egg coloration reflects similar relationships within these genera.

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Swimming Eastern Chipmunks, Tamias striatus, and Hairy-tailed Mole, Parascalops breweri, in Kawartha Highlands Provincial Park, Ontario

The Canadian Field-Naturalist ◽

10.22621/cfn.v122i1.549 ◽

2008 ◽

Vol 122 (1) ◽

pp. 73

Author(s):

Root Gorelick ◽

Susan M. Bertram

Keyword(s):

Tamias Striatus ◽

Southern Ontario ◽

First Report ◽

Eastern Chipmunks ◽

Provincial Park

We report swimming Eastern Chipmunks, Tamias striatus, and a swimming Hairy-tailed Mole, Parascalops breweri, in southern Ontario in Kawartha Highlands Provincial Park. Although naturally swimming Eastern Chipmunks have been seen before, they have never been previously documented in the literature. Ours appears to be the first photograph of a swimming Hairy-tailed Mole and the first report of one successfully and apparently voluntarily swimming.

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A fossil Aspergillus from Eocene Dominican amber

Journal of Paleontology ◽

10.1017/s0022336000058996 ◽

1988 ◽

Vol 62 (01) ◽

pp. 141-143 ◽

Cited By ~ 15

Author(s):

Gerard M. Thomas ◽

George O. Poinar

Keyword(s):

Dominican Republic ◽

Fossil Species ◽

First Report ◽

Dominican Amber ◽

Eocene Amber

A sporulating Aspergillus is described from a piece of Eocene amber originating from the Dominican Republic. The Aspergillus most closely resembles a form of the white spored phase of Aspergillus janus Raper and Thom. This is the first report of a fossil species of Aspergillus.

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