Spatial Ecology of the Oregon Gartersnake, Thamnophis atratus hydrophilus, in a Free-Flowing Stream Environment

@article{Welsh2010SpatialEO,
  title={Spatial Ecology of the Oregon Gartersnake, Thamnophis atratus hydrophilus, in a Free-Flowing Stream Environment},
  author={Hartwell H. Welsh and Clara A. Wheeler and Amy J. Lind},
  journal={Copeia},
  year={2010},
  volume={2010},
  pages={75 - 85}
}
Abstract Spatial patterns of animals have important implications for population dynamics and can reveal other key aspects of a species' ecology. Movements and the resulting spatial arrangements have fitness and genetic consequences for both individuals and populations. We studied the spatial and dispersal patterns of the Oregon Gartersnake, Thamnophis atratus hydrophilus, using capture–recapture techniques. Snakes showed aggregated dispersion. Frequency distributions of movement distances were… Expand
Foothill Yellow-Legged Frog (Rana boylii) Oviposition Site Choice at Multiple Spatial Scales
TLDR
Oviposition site selection and microhabitat specificity may result in population stability even within the substantial temporal and spatial variability of stream environments, suggesting fine-scale selection. Expand
Genetic Connectivity among Populations of the Threatened Bog Turtle (Glyptemys muhlenbergii) and the Need for a Regional Approach to Turtle Conservation
TLDR
Bog Turtle populations with nearest-neighbor distances of <2 km should be managed as inter-connected demographic units, dispersal movements among adjacent populations may enhance regional population stability, and gene flow over larger spatial and temporal scales probably requires dispersal among “stepping stone” habitats that may not harbor viable populations. Expand
Spatial relationships in a dendritic network: the herpetofaunal metacommunity of the Mattole River catchment of northwest California
TLDR
The aquatic and riparian herpetofauna in a 789 km 2 river catchment in northwest California is investigated to examine competing theories of biotic community structuring in catchment stream networks using non-parametric multiple regression (NPMR) to examine relationships at multiple spatial scales. Expand
Coalescent species delimitation in milksnakes (genus Lampropeltis) and impacts on phylogenetic comparative analyses.
TLDR
This study examines how delimitation of previously unrecognized diversity in the milksnake (Lampropeltis triangulum) and use of a species-tree approach affects both estimation of the Lampropelti phylogeny and comparative analyses with respect to the timing of diversification. Expand
Physiological vagility and its relationship to dispersal and neutral genetic heterogeneity in vertebrates
TLDR
The physiological capacity for movement (physiological vagility) quantitatively predicts genetic isolation by distance in the vertebrates examined, and the relative slopes of these relationships indicate that larger individuals require longer movement durations to achieve maximal dispersal distances. Expand
Life history and spatial traits predict extinction risk due to climate change
Climate change could be a game-changer for biodiversity conservation, potentially invalidating many established methods including those employed in vulnerability assessments. Now, a simulation studyExpand

References

SHOWING 1-10 OF 57 REFERENCES
Male‐biased dispersal in a tropical Australian snake (Stegonotus cucullatus, Colubridae)
TLDR
Genetic analyses of slatey‐grey snakes in the Australian wet‐dry tropics supported the mark–recapture data, but also extended the insights by revealing occasional long‐distance dispersal not detected by the mark‐recaptur study. Expand
Sex–biased dispersal in a salmonid fish
  • J. Hutchings, L. Gerber
  • Biology, Medicine
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2002
TLDR
The hypothesis that dispersal is sex biased in an unexploited population of brook trout on Cape Race, Newfoundland, Canada is tested and it is concluded that this sex bias reduces mate competition among male kin and decreases the probability that males will reproduce with related females. Expand
Ecology of the Southeastern Crowned Snake, Tantilla coronata
TLDR
The ecology and demography of the Southeastern Crowned Snake (Tantilla coronata), based on 1,640 captures on the Savannah River Site in the Upper Coastal Plain of South Carolina, USA from 1951–2007, demonstrates that research on underrepresented species is possible and can contribute to understanding of snake ecology. Expand
GARTER SNAKE POPULATION DYNAMICS FROM A 16-YEAR STUDY: CONSIDERATIONS FOR ECOLOGICAL MONITORING
Snakes have recently been proposed as model organisms for addressing both evolutionary and ecological questions. Because of their middle position in many food webs they may be useful indicators ofExpand
Ontogenetic changes in foraging behaviour and habitat use by the Oregon garter snake, Thamnophis atratus hydrophilus
TLDR
Changes in foraging behaviour, habitat use and food habits of Oregon garter snakes are probably the result of a combination of proximate ecological, morphological and physiological constraints and may have a phylogenetic origin that reflects the strong advantage of single large meals versus many small meals for many modern snake lineages. Expand
Sex-biased dispersal and high levels of gene flow among local populations in the argentine boa constrictor, Boa constrictor occidentalis
TLDR
A comparison of FST between genders in both areas suggests a male-biased dispersal, which could be explained by the characteristics of the mating system: males carry out an active mate search of receptive females, and philopatry could be selected in females due to the benefits of the familiarity with the natal area in the use of local resources. Expand
Spatial patterns in tiger snakes (Notechis ater : Elapidae) on offshore Islands of Siuthern Australia
TLDR
The evidence supports the hypothesis that resource densities are important determinants of dispersion in island tiger snakes and may have contributed to evolutionary divergence in these populations. Expand
Spatial genetic analysis and long-term mark–recapture data demonstrate male-biased dispersal in a snake
TLDR
The genetic and demographic data suggest that gene flow is largely mediated by males in this species, and a strong and significant genetic signature of male-biased dispersal is shown. Expand
Explaining Leptokurtic Movement Distributions: Intrapopulation Variation in Boldness and Exploration
TLDR
Results show that a behavioral trait, not discernible from body size or sex, contributes to dispersal and that a component of fitness of surviving “dispersers” is elevated above that of “stayers,” a fundamental assumption or prediction of many models of the evolution of dispersal through hazardous habitat. Expand
Spatial Ecology of the Eastern Massasauga (Sistrurus c. catenatus) in a New York Peatland
TLDR
The activity range and movement patterns of eastern massasaugas by sex and reproductive condition in Cicero Swamp, near Syracuse, New York, are determined to aid in the development of a management strategy for this species in the state and results with telemetric studies of this species are compared. Expand
...
1
2
3
4
5
...