Martes americana

Clark, Tim W.; Anderson, Edgar; Douglas, C.; Strickland, Marjorie A.

doi:10.2307/3503918

Cited by 78 publications

(42 citation statements)

References 37 publications

(75 reference statements)

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“…Members of the genus Martes are small-bodied (mean total skull length of 75 mm according to Elbroch, 2006) mesocarnivorous to hypercarnivorous mustelids (Ben-David et al, 1997;Hickey et al, 1999;Cumberland et al, 2001) that, like felids, have been reported to kill their prey via a precise bite to the neck (Clark et al, 1987). Much of the caloric content of the diet in some members of this genus, such as M. americana, is composed of larger prey items (Cumberland et al, 2001), such as grouse (Bonasa umbellus and Canachites canadensis) and snowshoe hares (Lepus americanus).…”

Section: Paleobiology Of Uf 27881mentioning

confidence: 99%

A new species of small-bodied sparassodont (Mammalia, Metatheria) from the middle Miocene locality of Quebrada Honda, Bolivia

Engelman

Croft

2014

Journal of Vertebrate Paleontology

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ABSTRACT-The Sparassodonta (Mammalia, Metatheria) are a group of carnivorous mammals that dominated the macropredatory guild of South America during the Cenozoic. Here, we describe a new sparassodont based on a single specimen from the middle Miocene Quebrada Honda local fauna of southern Bolivia. This specimen (UF 27881) does not clearly correspond to any major sparassodont group (e.g., Hathliacynidae, Borhyaenidae, etc.) and represents a morphotype previously unknown among the Sparassodonta. UF 27881 is distinguished from other sparassodonts by its short, broad, borhyaenid-like rostrum and small size, among other features. However, we decline to coin a new name for UF 27881 due to the fragmentary nature of this specimen and the absence of most of its dentition. This specimen suggests that the appearance of the Sparassocynidae and several hypercarnivorous didelphid taxa (including Thylophorops, Thylatheridium, Lutreolina, and Hyperdidelphys) represent an evolutionary response to the decline in small, predatory sparassodont taxa during the late Cenozoic. This study documents new morphological diversity among the Sparassodonta and highlights the value of fossils from traditionally undersampled parts of South America.

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Section: Paleobiology Of Uf 27881mentioning

confidence: 99%

A new species of small-bodied sparassodont (Mammalia, Metatheria) from the middle Miocene locality of Quebrada Honda, Bolivia

Engelman

Croft

2014

Journal of Vertebrate Paleontology

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“…Food habits of primary mustelid hosts may be characterized as opportunistic, although arvicoline rodents are considered to be dominant through the annual cycle based primarily on scat analysis (e.g., Strickland et al, 1990). Insectivores, including species of Sorex, have been identified as prey for martens in Alaska but appear to be a minor component of the diet, most often represented during the winter (Buskirk and MacDonald, 1984;Clark et al, 1987). Our studies may establish the basis for recognizing shrews as important paratenic hosts involved in transmission of S. baturini.…”

Section: Discussionmentioning

confidence: 97%

Nearctic Shrews, Sorex spp., as Paratenic Hosts of Soboliphyme baturini (Nematoda: Soboliphymidae)

Karpenko

Dokuchaev

Hoberg

2007

Comparative Parasitology

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“…Body weights were taken from BinindaEmonds (1998) and Nowak (1997), complemented with data from the series ''Mammalian Species'' (Estes 1980;Powell 1981;Clark et al 1987;Youngman 1990;Kinlaw 1995;Pasitstschniak-Arts and Larivière 1995;Sheffield and Thomas 1997;Larivière and Walton 1998;Larivière 1999;2001a;2001b;Verts et al 2001). Data on the length of the breeding season were taken from Mead (1989).…”

Section: Methodsmentioning

confidence: 99%

The Monophyletic Origin of Delayed Implantation in Carnivores and Its Implications

Lindenfors¹,

Dalén²,

Angerbjörn³

2003

Evolution

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Abstract. In several carnivores a newly fertilized egg enters diapause instead of being directly implanted into the uterus, a phenomenon called delayed implantation. Several hypotheses have been forwarded to explain the utility of this prolonged gestation period, but all of these depend on several independent origins of the character. Here, we conduct a phylogenetic reconstruction of the evolution of delayed implantation in the Carnivora that reveals one basal origin, with additional transitions all having occurred within the Mustelidae. Hence, previous hypotheses relating to its evolution become untestable. Further analyses revealed that the presence or absence of delayed implantation is unrelated to the timing of mating season and birth season. Instead, mustelids with direct implantation are smaller than those with delayed implantation. We therefore suggest that delayed implantation has been selected against in small species due to the relatively higher fecundity costs of a prolonged gestation period.

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Martes americana

Cited by 78 publications

References 37 publications

A new species of small-bodied sparassodont (Mammalia, Metatheria) from the middle Miocene locality of Quebrada Honda, Bolivia

A new species of small-bodied sparassodont (Mammalia, Metatheria) from the middle Miocene locality of Quebrada Honda, Bolivia

Nearctic Shrews, Sorex spp., as Paratenic Hosts of Soboliphyme baturini (Nematoda: Soboliphymidae)

The Monophyletic Origin of Delayed Implantation in Carnivores and Its Implications

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