Prey selection in naive Elaphe obsoleta (Squamata: serpentes) — A reappraisal
نویسندگان
چکیده
منابع مشابه
Genetic evidence for sexual selection in black ratsnakes, Elaphe obsoleta
We investigated benefits of polyandry and phenotypic correlates of male mating success in black ratsnakes. We used 10 microsatellite loci to identify the sires of 375 hatchlings from 34 clutches with known mothers. Multiple paternity occurred in 88% of clutches, despite the fact that ratsnakes mate when dispersed. The incidence of multiple paternity did not vary with female size or with clutch ...
متن کاملLatitudinal variation in seasonal activity and mortality in ratsnakes (Elaphe obsoleta).
The ecology of ectotherms should be particularly affected by latitude because so much of their biology is temperature dependent. Current latitudinal patterns should also be informative about how ectotherms will have to modify their behavior in response to climate change. We used data from a total of 175 adult black ratsnakes (Elaphe obsoleta) radio-tracked in Ontario, Illinois, and Texas, a lat...
متن کاملIsolation and characterization of a new fungal species, Chrysosporium ophiodiicola, from a mycotic granuloma of a black rat snake (Elaphe obsoleta obsoleta).
Isolation and characterization of the new species Chrysosporium ophiodiicola from a mycotic granuloma of a black rat snake (Elaphe obsoleta obsoleta) are reported. Analysis of the sequences of different fragments of the ribosomal genes demonstrated that this species belongs to the Onygenales and that this species is genetically different from other morphologically similar species of Chrysospori...
متن کاملReproductive Biology of Agkistrodon Piscivorus Lacépède (squamata, Serpentes, Viperidae, Crotalinae)
Aspects of the reproductive biology of male and female Agkistrodon piscivorus are described using histological techniques, reviewed, and compared with historical data on A. piscivorus. These include anatomical description at the macro and microscopic levels, and correlation of the male and female urogenital cycles to the reproductive life history of A. piscivorus. New anatomical descriptions an...
متن کاملLong-term population estimates and synchronous variation in two populations of black rat snakes (Elaphe obsoleta) in Eastern Ontario
Synchronous variation describes the pattern that occurs when variables, such as population size, from several separate populations increase or decrease together. It is common in animal populations and is relevant when studying species of conservation interest because synchrony prevents population rescue. We used 23 years of mark-recapture data to test for the presence of synchronous variation i...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1970
ISSN: 0033-3131
DOI: 10.3758/bf03330720