Home Range and Social Behavior of the Endangered Tehuantepec Jackrabbit (Lepus Flavigularis) in Oaxaca, Mexico

Farias, Veronica; Fuller, Todd K.; Cervantes, Fernando A.; Lorenzo, Consuelo

doi:10.1644/05-mamm-a-248r3.1

Cited by 24 publications

(50 citation statements)

References 22 publications

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“…Handling and radiotracking of jackrabbits, and home range estimation, are described fully elsewhere (Farías et al 2006). Tehuantepec jackrabbits were captured by hand in nets, aged, sexed, and Wtted with 20-, 30-, or 40-g VHF radiocollar transmitters (M2900 Advanced Telemetry Systems Inc., Isanti, Minnesota) with motion and mortality sensors and whip antennae.…”

Section: Radiotracking and Home Range Estimationmentioning

confidence: 99%

“…We obtained overall estimates for 17 adults and 18 juveniles, using 22 to 143 locations for adults and 10 to 51 locations for juveniles. Fifty seasonal estimates were calculated for 32 jackrabbits (Farías et al 2006).…”

Section: Radiotracking and Home Range Estimationmentioning

confidence: 99%

“…MANOVA was used to test for eVects of sex, age, season, and year. Individuals were treated as experimental units in the analysis of overall estimates; but, because 10 adults and one juvenile had 2-4 estimates that corresponded to diVerent seasons, home ranges were the experimental units in the analysis of seasonal estimates (Farías 2004). …”

Section: Habitat Use Analysismentioning

confidence: 99%

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Native vegetation structure and persistence of endangered Tehuantepec jackrabbits in a neotropical savanna in Oaxaca, México

Farias

Fuller

2009

Biodivers Conserv

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Because of its crucial importance for the persistence of the endangered Tehuantepec jackrabbit (Lepus Xavigularis), we identiWed structural characteristics of native vegetation (1) selected by Tehuantepec jackrabbits to establish home ranges, (2) used within home ranges, and (3) in relation to activity and inactivity periods. A neotropical savanna in the Isthmus of Tehuantepec, Oaxaca, México, oVered diversity in native Xora and heterogeneity in vegetation structure to the studied population of Tehuantepec jackrabbit. Adults and juveniles diVered in habitat use patterns. No eVect on habitat selection was detected for sex or season. Jackrabbits established home ranges on grassy habitat with discontinuous overstory of nanche (Byrsonima crassifolia) shrubbery and morro (Crescentia) trees. Adults underused dense vegetation where predators may ambush them; juveniles avoided dense vegetation and grassland without overstory. Within adults' home ranges, habitat selection favoring grassy habitats with nanche and morro was relatively stronger during the activity period (nocturnal and crepuscular hours) and during one of 2 years which had more rainfall. Scattered trees and open shrubbery likely allowed foraging jackrabbits with both visibility and escape routes used to detect and outrun predators. Moreover, during the inactivity period (diurnal hours) adults and juveniles favored nanche shrubbery that provided resting jackrabbits with shelter to hide from predators. Clearly, structure and diversity of native vegetation in the savanna needs to be preserved for conservation of Tehuantepec jackrabbits because deteriorated habitat may pose higher predation rates for a jackrabbit population in risk of extirpation.

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Section: Radiotracking and Home Range Estimationmentioning

confidence: 99%

Section: Radiotracking and Home Range Estimationmentioning

confidence: 99%

Section: Habitat Use Analysismentioning

confidence: 99%

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Native vegetation structure and persistence of endangered Tehuantepec jackrabbits in a neotropical savanna in Oaxaca, México

Farias

Fuller

2009

Biodivers Conserv

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“…While there are reports of movements of small numbers of Lepus in excess of 5 km (e.g. Smith et al, 2002), most jackrabbits spend their lives within an area less than 1 km 2 in size, with most estimates falling below 170 ha (Best, 1996;Farias et al, 2006;French et al, 1965;Lechleitner, 1958;Smith, 1990). Cottontails have even smaller lifetime home ranges.…”

Section: Introductionmentioning

confidence: 99%

Exploring the use of stable carbon isotope ratios in short-lived leporids for local paleoecological reconstruction

Smith

Mauldin

Munoz

et al. 2014

Open J Archaeometry

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Most ecological proxies used in archaeological research operate at scales that are too coarse-grained for consideration of huntergatherer adaptive decisions. Hunter-gatherers adapt to local ecological conditions and short (e.g. seasonal, yearly) time frames. Our goal is to develop proxies to identify ecological shifts at fine-grained temporal and spatial scales for archaeological research. We use stable carbon isotope ratios (δ 13

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“…Previous studies have reported low population density, polygamous and non-territorial habits, as well as a large home range that depends on the availability of resources and varies significantly between sexes: from 1.13 ha to 152.61 ha in females and from 0.20 ha to 71.87 ha in males (Farías et al, 2006;Lorenzo, Rioja, Carrillo, & Cervantes, 2008;Carrillo-Reyes, Lorenzo, Naranjo, Pando, & Rioja, 2010). It is known that its populations are threatened by poaching, predation by dogs and habitat loss (Lorenzo, Cervantes, & Vargas, 2005;CarrilloReyes, Lorenzo, Rioja-Paradela, Naranjo, & Pando, 2012;Sántiz, Lorenzo, CarrilloReyes, Navarrete, & Islebe, 2016).…”

mentioning

confidence: 98%

Variation and genetic structure of the endangered Lepus flavigularis (Lagomorpha: Leporidae)

Salazar

Lorenzo

Medinilla

et al. 2017

RBT

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Lepus flavigularis, is an endemic and endangered species, with only four populations inhabiting Oaxaca, México: Montecillo Santa Cruz, Aguachil, San Francisco del Mar Viejo and Santa María del Mar. Nevertheless, human activities like poaching and land use changes, and the low genetic diversity detected with mitochondrial DNA and allozymes in previous studies, have supported the urgent need of management strategies for this species, and suggest the definition of management units. For this, it is necessary to study the genetic structure with nuclear genes, due to their inheritance and high polymorphism, therefore, the objective of this study was to examine the variation and genetic structure of L. flavigularis using nuclear microsatellites. We sampled four populations of L. flavigularis and a total of 67 jackrabbits were captured by night sampling during the period of 2001 to 2006. We obtained the genomic DNA by the phenol-chloroform-isoamyl alcohol method. To obtain the diversity and genetic structure, seven microsatellites were amplified using the Polymerase Chain Reaction (PCR); the amplifications were visualized through electrophoresis with 10 % polyacrylamide gels, dyed with ethidium bromide. Genetic diversity was determined using the software GenAlEx v. 6.4, and genetic structure was obtained with ARLEQUIN v. 3.1; null alleles were evaluated using the program Micro-Checker v.2.2.2. Additionally, a Bayesian analysis was performed with software STRUCTURE v. 2.2.3., and the isolation by distance (IBD) was studied using the program PASSAGE v.2.0.11.6. Our results showed that the genetic variation found was low (HO = 0.30, HE = 0.24) when compared to other jackrabbit species. Fixed alleles and moderate levels of genetic differentiation (FST = 0.18, P = 0.001) were detected among populations, indicating the effect of the genetic drift and limited gene flow. Bayesian clustering analysis revealed two groups: (1) jackrabbits from Montecillo Santa Cruz, and (2) individuals living in Aguachil, San Francisco del Mar Viejo and Santa María del Mar. No evidence was found of isolation by distance. It is possible that the geographic barriers present between populations (e.g. lagoons, human settlements), rather than the geographical distance between them, may explain the observed genetic structure. The inbreeding coefficient was negative (FIS = -0.27, P = 0.03), indicating genetic sub-structure in populations. We suggest two management units based on the genetically closer populations, which will help define precise conservation actions in L. flavigularis. This research is the basis for defining translocation of individuals between populations, nevertheless, a more extensive future study, with specific molecular markers for L. flavigularis, is required. In addition, it is necessary to analyze the barriers that limit the gene flow, since it is urgent to reduce the genetic differentiation between populations and increase the genetic diversity of this species.

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Home Range and Social Behavior of the Endangered Tehuantepec Jackrabbit (Lepus Flavigularis) in Oaxaca, Mexico

Cited by 24 publications

References 22 publications

Native vegetation structure and persistence of endangered Tehuantepec jackrabbits in a neotropical savanna in Oaxaca, México

Native vegetation structure and persistence of endangered Tehuantepec jackrabbits in a neotropical savanna in Oaxaca, México

Exploring the use of stable carbon isotope ratios in short-lived leporids for local paleoecological reconstruction

Variation and genetic structure of the endangered Lepus flavigularis (Lagomorpha: Leporidae)

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