Intraspecific Variation In Habitat Use and Movement In Long-Nosed Leopard Lizards (<i>Gambelia wislizenii</i>) From the Alvord Basin, Oregon

Garrison, Grace E.; Gebin, João Carlos Zecchini; Penner, Jacob F.; Jacobson, Faelan E.; Eifler, Maria A.; Eifler, Douglas A.

doi:10.1894/0038-4909-62.3.187

Cited by 7 publications

(5 citation statements)

References 38 publications

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“…Examining spatiotemporal movement has led to significant insights into social behavior (Leu et al, 2016). Movement indices reveal intraspecific variation (Childers & Eifler, 2015; Eifler et al, 2007; Garrison et al, 2017; Huey & Pianka, 1981; Perry, 2007) or behavioral flexibility (Durtsche, 1992; Eifler et al, 2008; Eifler & Eifler, 1999; Greeff & Whiting, 2000) in foraging. Interspecific variation in foraging movement can be associated with differences in diet, space use, or habitat selection among sympatric species (Kozlowski et al, 2006; Parra, 2006; Waite et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Leopard lizards primarily use visual cues for finding food, pursuing prey that moves within their visual detection range (≤10 m away) (Anderson, 2007; Cooper, 1995; Garrison et al, 2017; Tollestrup, 1983). The movement rate for leopard lizards can vary with environmental conditions and among individuals (Anderson, 2007; Garrison et al, 2017). In contrast, whiptail movement is wide‐ranging and can vary with habitat structure (Anderson & Karasov, 1988; Utsumi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Despite sharing habitats and consuming similar prey, the species vary in their foraging strategies and rely differently on sensory modalities for prey detection (Anderson, 1993; Montanucci, 1967; Parker & Pianka, 1976; Pianka, 1970). Leopard lizards primarily use visual cues for finding food, pursuing prey that moves within their visual detection range (≤10 m away) (Anderson, 2007; Cooper, 1995; Garrison et al, 2017; Tollestrup, 1983). The movement rate for leopard lizards can vary with environmental conditions and among individuals (Anderson, 2007; Garrison et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris

McAlpine‐Bellis,

Utsumi,

Diamond

et al. 2023

Ecology and Evolution

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Movement is an important characteristic of an animal's ecology, reflecting the perception of and response to environmental conditions. To effectively search for food, movement patterns likely depend on habitat characteristics and the sensory systems used to find prey. We examined movements associated with foraging for two sympatric species of lizards inhabiting the Great Basin Desert of southeastern Oregon. The two species have largely overlapping diets but find prey via different sensory cues, which link to their differing foraging strategies—the long‐nosed leopard lizard, Gambelia wislizenii, is a visually‐oriented predator, while the western whiptail, Aspidoscelis tigris, relies more heavily on chemosensory cues to find prey. Using detailed focal observations, we characterized the habitat use and movement paths of each species. We placed markers at the location of focal animals every minute for the duration of each 30‐min observation. Afterward, we recorded whether each location was in the open or in vegetation, as well as the movement metrics of step length, path length, net displacement, straightness index, and turn angle, and then made statistical comparisons between the two species. The visual forager spent more time in open areas, moved less frequently over shorter distances, and differed in patterns of plant use compared to the chemosensory forager. Path characteristics of step length and turn angle differed between species. The visual predator moved in a way that was consistent with the notion that they require a clear visual path to stalk prey whereas the movement of the chemosensory predator increased their chances of detecting prey by venturing further into vegetation. Sympatric species can partition limited resources through differences in search behavior and habitat use.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris

McAlpine‐Bellis,

Utsumi,

Diamond

et al. 2023

Ecology and Evolution

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“…An accurate home range estimate requires data collection at a temporal scale that captures the processes underlying movement decisions (Harris et al., 1990). Space use and movement may be shaped by extrinsic factors such as the distribution, seasonal availability, and quality of resources (Gerber et al., 2012; Haskell et al., 2002; Roe & Georges, 2008), or by intrinsic factors such as sex, life stage, body size, and foraging mode (Averill‐Murray et al., 2020; Christian & Waldschmidt, 1984; Garrison et al., 2017; Perry & Garland, 2002; Verwaijen & Damme, 2008). Thus, space use changes as a function of both predictable (i.e., seasonal, Ariano‐Sánchez et al., 2020; Brito, 2003) and unpredictable factors (i.e., stochastic environmental variation, Rivrud et al., 2010; Van Beest et al., 2011).…”

Section: Introductionmentioning

confidence: 99%

Livin' la vida local: philopatry results in consistent patterns of annual space use in a long‐lived lizard

Stalker,

Jones,

Hromada

et al. 2023

Journal of Zoology

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For animals exhibiting range residency, the home range is a useful framework to quantify space use. Some reptiles can live decades in the wild and experience extreme environmental variation that influences patterns of habitat use. Individuals may modify their use of space over time, reducing the utility of single‐year home range estimates. Very high frequency (VHF) telemetry data were collected for Gila monsters (Heloderma suspectum) at three Mojave Desert sites in Clark County, Nevada, and home range utilization distributions were calculated using an autocorrelated kernel density estimator. Home range size was consistent within individuals and populations, and home range size did not vary across years at any site. To measure home range fidelity (year‐to‐year reuse), we calculated Bhattacharyya's coefficient (BC) for each combination of years in which an individual was tracked and averaged estimates across individuals and populations. The average BC score was 0.86 (scale from 0 to 1; 0 = no overlap and 1 = complete overlap) and did not vary among populations. We modeled home range area accumulation to estimate the minimum sample size needed for asymptotic stability and found home range accumulation to be dynamic and variable within and across years and individuals. Analysis of the frequency of movement by individuals, average distance traveled per movement, and cumulative distance traveled per active season revealed that movement patterns vary considerably by year. Heterogeneity of space use among populations and individuals suggests that individual and local environmental variation, rather than annual variation in resource availability, may drive home range size and movement patterns of Gila monsters in southern Nevada. Annual variability in movement patterns did not translate to variability in home range size or location, and the species exhibits extremely high philopatry, using the same areas for periods of at least 3–5 years.

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“…Inter‐ and intraspecific differences in resource use can take the form of temporal partitioning of activity (Frere et al., 2008; Hedman et al., 2021; Hirai & Matsui, 2002; Razgour et al., 2011), spatial partitioning of habitats (Cloyed, 2014; Langeland et al., 1991; MacArthur, 1958; McAlpine‐Bellis et al., 2023; Norton, 1991) or differential use of food sources (Beaulieu & Sockman, 2012; Frere et al., 2008; Navarro et al., 2009; Pulliam, 1985). Measuring movement patterns can provide insight into mechanisms that reduce competition among conspecifics (Eifler et al., 2007; Garrison et al., 2017; Kusaka et al., 2021) and promote coexistence of similar species (Colombo et al., 2016; McAlpine‐Bellis et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

Movement and space use in three sympatric lacertid lizards (Acanthodactylus): Inter‐ and intraspecific comparisons

Eifler,

Orton

et al. 2023

Afr J Ecol

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Competition can be keen within and between closely related species but can be reduced when sympatric individuals differ in resource use. To determine how sympatric, closely related species coexist, we examined movement and activity of foraging individuals, developing detailed profiles for males of three species (Acanthodactylus boskianus, A. dumerilii and A. scutellatus) and for female A. boskianus in arid sub‐desert steppes of southern Tunisia. All three species were active concurrently with different peak activity times. Males varied markedly in their movement, as did A. boskianus sexes. Interspecifically, male A. boskianus moved most frequently, for the most time, covering the greatest distance and searching the largest area, while male A. dumerilii moved the least often, travelled the shortest distances and intensively searched small areas. Acanthodactylus scutellatus males generally were intermediate between the other species but dug more frequently and had movement rates comparable to A. boskianus. Intraspecifically, A. boskianus females moved less frequently, for a smaller percentage of time, covering shorter distances and searching smaller areas than male A. boskianus. Habitat use varied among species and by sex within A. boskianus. Differences in movement and activity likely reflect differences in resource use that promote coexistence between and within species.

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Intraspecific Variation In Habitat Use and Movement In Long-Nosed Leopard Lizards (Gambelia wislizenii) From the Alvord Basin, Oregon

Cited by 7 publications

References 38 publications

Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris

Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris

Livin' la vida local: philopatry results in consistent patterns of annual space use in a long‐lived lizard

Movement and space use in three sympatric lacertid lizards (Acanthodactylus): Inter‐ and intraspecific comparisons

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