Social monogamy in a territorial salamander

Gillette, Jennifer R.; Jaeger, Robert G.; Peterson, Megan G.

doi:10.1006/anbe.2000.1437

Cited by 52 publications

(35 citation statements)

References 33 publications

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“…Further, males produce fecal pellets at a higher rate when presented with female pheromones [Mathis, 1990], suggesting that males use fecal pellets to advertise foraging quality [Karuzas et al, 2004]. This latter observation, coupled with fi eld studies that show a higher frequency of male-female pairs (compared to male-male or female-female pairs) in over-lapping territories, even in the non-courting (summer) season Peterson et al, 2000], led to the suggestion that red-backed salamanders are socially monogamous [Gillette et al, 2000a]. Thus, territories could have not only a feeding function, but a mating function as well.…”

Section: Discussionmentioning

confidence: 89%

“…A myriad of studies have shown that red-backed salamanders can discern much about another salamander through odor, including sex [Mathis, 1990], territory quality [Walls et al, 1989], whether or not they already have a partner [Gillette et al, 2000a], and individual identity [Jaeger, 1981]. Salamanders identify their territories [Graves, 1994], follow conspecifi c trails [Gergits and Jaeger, 1990], and direct courtship [Arnold, 1977] through odors.…”

Section: Discussionmentioning

confidence: 99%

“…The net result is that adult males and females often are territorial, with territories centered around moist retreat sites [Mathis, 1990] and access to limited prey [Jaeger, 1980;Jaeger et al, 1982]. Their mating system has most recently been characterized as social monogamy [Gillette et al, 2000a], infl uenced by the distribution of cover objects in the forest .…”

mentioning

confidence: 99%

“…This information about the scent producer includes gender [Martin et al, 2000], familiarity vs. unfamiliarity [Jaeger, 1981;Gillette et al, 2000b], quality of diet [Walls et al, 1989;Gabor and Jaeger, 1995;Karuzas et al, 2004], kinship [Forester and Anders 2000], and whether or not they had other mating partners [Gillette et al, 2000a]. Adults of both sexes and juveniles can detect the information in pheromones [Horne and Jaeger, 1988;Jaeger et al, 1995], and the vomeronasal system is specifi cally implicated in pheromone detection through a behavior called nose-tapping.…”

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confidence: 99%

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Cell Birth and Survival following Seasonal Periods of Cell Proliferation in the Chemosensory Epithelia of Red-Backed Salamanders, <i>Plethodon cinereus</i>

et al. 2006

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In addition to the continuous low levels of neurogenesis typical of adult vertebrates to replace damaged chemoreceptor cells, red-backed salamanders (Plethodon cinereus) experience an up-regulation of chemoreceptor epithelial cell proliferation on a seasonal basis. Significantly more cell division occurs in late spring than at any other time of the year, and we investigated the fate and life span of these newly generated cells. We used 5-bromo-2′-deoxyuridine (BrdU) immunocytochemical cell birth dating to examine cell proliferation and cell migration in the main olfactory and vomeronasal epithelia of red-backed salamanders collected in late spring who were allowed to survive for one hour or three, four, 25, 28, 42, 49 and 100 days post-injection. We examined new neuron growth in the vomeronasal and olfactory epithelia using antibodies against Growth Associated Protein-43 (GAP-43), a protein whose synthesis is up-regulated during axon growth. We also tracked apoptosis within both types of chemosensory epithelia using terminal deoxynucleotidyl transferase-mediated nick-end labeling (TUNEL). BrdU-immunoreactive cells were located extensively throughout the vomeronasal epithelia, particularly in the area posterior to the entrance of the nasolacrimal duct, not only after three days of survival, but also all of the longer experimental survival periods as well; BrdU-ir cells within the olfactory epithelia were rarely located after longer survival periods. Salamanders collected in late spring displayed extensive GAP-43 labeling in the vomeronasal epithelia posterior to the entrance of the nasolacrimal duct, indicating a large population of young vomeronasal receptor neurons. Finally, apoptotic cells were evident in this same post-nasolacrimal-duct-area of the vomeronasal organ and in the olfactory epithelium. We suggest that vomeronasal receptor neurons born in late spring function throughout the summer and may be associated with the animals’ extensive territoriality during that period.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Cell Birth and Survival following Seasonal Periods of Cell Proliferation in the Chemosensory Epithelia of Red-Backed Salamanders, <i>Plethodon cinereus</i>

et al. 2006

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“…An extensive body of information exists on the natural history of amphibians (Petranka 1998;Stebbins and Cohen 1997). Amphibians exhibit a wide diversity in behavior and reproductive strategies, including social monogamy, multiple paternity, clutch piracy, egg brooding, and feeding of young (Gillette et al 2000;Liebgold et al 2006;Vleltes et al 2004;Wise and Jaeger 1998;Zug et al 2001). Advances in molecular techniques have enhanced and broadened the scope of ecological research.…”

Section: Salamander Species and Common Research And Teaching Areasmentioning

confidence: 97%

Amphibians Used in Research and Teaching

O’Rourke

2007

ILAR Journal

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Amphibians have long been utilized in scientific research and in education. Historically, investigators have accumulated a wealth of information on the natural history and biology of amphibians, and this body of information is continually expanding as researchers describe new species and study the behaviors of these animals. Amphibians evolved as models for a variety of developmental and physiological processes, largely due to their unique ability to undergo metamorphosis. Scientists have used amphibian embryos to evaluate the effects of toxins, mutagens, and teratogens. Likewise, the animals are invaluable in research due to the ability of some species to regenerate limbs. Certain species of amphibians have short generation times and genetic constructs that make them desirable for transgenic and knockout technology, and there is a current national focus on developing these species for genetic and genomic research. This group of vertebrates is also critically important in the investigation of the inter-relationship of humans and the environment based on their sensitivity to climatic and habitat changes and environmental contamination.

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