Wildlife Behavior and Conservation

Yahner, Richard H.

doi:10.1007/978-1-4614-1518-3

Cited by 9 publications

(6 citation statements)

References 84 publications

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“…Our measured response distances are likely relative estimates, as any number of environmental cues may be used by an individual to make navigation decisions (Goodenough et al 2009, Yahner 2011). This leads to a gradient in the behavioral effect these features may have on movement and permeability of the landscape (i.e., the gradient describing how a feature moves from being a barrier, obstacle, or impedance to a constraint; Beyer et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Estimating response distances of lesser prairie‐chickens to anthropogenic features during long‐distance movements

et al. 2020

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Section: Discussionmentioning

confidence: 99%

Estimating response distances of lesser prairie‐chickens to anthropogenic features during long‐distance movements

et al. 2020

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“…Therefore, for these variations among the years, other aspects such as spatial variation in grazing, forest fires and the phenology of the grass species should be considered. The CGC levels recorded during the three winter seasons studied could have enabled different species of wildlife, such as migratory grassland birds, to find this important habitat requirement [47].…”

Section: Discussionmentioning

confidence: 99%

Mapping Land Cover and Estimating the Grassland Structure in a Priority Area of the Chihuahuan Desert

Rodríguez-Maturino

Martínez-Guerrero

Chairez-Hernández

et al. 2017

Land

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Abstract:A field characterization of the grassland vegetation structure, represented by the coverage of grass canopy (CGC) and the grass height, was carried out during three years (2009)(2010)(2011) in a priority area for the conservation of grasslands of North America. Landsat Thematic Mapper (TM5) images were selected and the information of reflectance was obtained based on the geographical location of each field-sampling site. Linear models, constructed with field and satellite data, with high coefficients of determination for CGC (R 2 = 0.81, R 2 = 0.81 and R 2 = 0.72) and grass height (R 2 = 0.82, R 2 = 0.79 and R 2 = 0.73) were obtained. The maps showed a good level of CGC (>25%) and grass height (>25 cm), except for the year 2009, which presented the lowest values of grass height in the area. According to the Kappa Index, a moderate concordance among the three CGC maps was presented (0.49-0.59). Conversely, weak and moderate concordances were found among the grass height maps (0.36-0.59). It was observed that areas with a high CGC do not necessarily correspond to areas with greater grass height values. Based on the data analyzed in this study, the grassland areas are highly dynamic, structurally heterogeneous and the spatial distribution of the variables does not show a definite pattern. From the information generated, it is possible to determine those areas that are the most important for monitoring to then establish effective strategies for the conservation of these grasslands and the protection of threatened migratory bird species.

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“…Hibernation is an adaptive strategy adopted by many animals to survive the cold and foodless winter [1]. During winter, hibernators stay in their refuges and suppress their metabolic rates to substantially save energy, water, and oxygen [2].…”

Section: Introductionmentioning

confidence: 99%

Multi-omics analysis reveals that natural hibernation is crucial for oocyte maturation in the female Chinese alligator

Lin

Jiang

et al. 2020

BMC Genomics

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Background Hibernation in an appropriate environment not only is important for the survival of hibernators in winter, but also is crucial for breeding in the following season for many hibernating species. However, the genetic and epigenetic mechanism underlying this process remain unclear. In the current study, we performed an integrative multi-omics analysis of gonads collected from Chinese alligators that overwintered in wild cave and artificial warmroom to explore transcriptomic and epigenomic alternations in these organs. Results The data revealed that in the breeding season, female alligators were more strongly affected in terms of gene expression than males by non-hibernation because of overwintering in a warm room, especially for genes related to oocyte maturation, and this effect commenced in winter with the downregulation of STAR, which is the rate limiting factor of steroid biosynthesis. Further, miRNAs were found to play essential roles in this negative effect of overwintering in the warm room on hibernation. The upregulated miRNAs likely were responsible for the suppression of oocyte maturation in the breeding season. Finally, DNA methylome changes, especially hypomethylation, were found to play an important role in the alterations in ovarian function-related gene expression induced by non-hibernation. Conclusions Our study revealed the crucial role of hibernation quality for oocyte maturation in the Chinese alligator and the underlying genetic and epigenetic mechanisms, and highlights the importance of habitat, and especially, the overwintering site, in the conservation of not only the Chinese alligator, but also other endangered hibernators.

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Wildlife Behavior and Conservation

Cited by 9 publications

References 84 publications

Estimating response distances of lesser prairie‐chickens to anthropogenic features during long‐distance movements

Estimating response distances of lesser prairie‐chickens to anthropogenic features during long‐distance movements

Mapping Land Cover and Estimating the Grassland Structure in a Priority Area of the Chihuahuan Desert

Multi-omics analysis reveals that natural hibernation is crucial for oocyte maturation in the female Chinese alligator

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