Roost Use, Ranging Behavior, and Diet of Greater Horseshoe Bats (Rhinolophus Ferrumequinum) Using a Transitional Roost

Flanders, Jon; Jones, Gareth

doi:10.1644/08-mamm-a-352.1

Cited by 34 publications

(36 citation statements)

References 35 publications

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“…Consistent with the results obtained in other European studies, R. ferrumequinum and M. emarginatus were strongly dependent on the availability of deciduous woodland and riparian vegetation within a 5 km-distance of their maternity roost (Flaquer et al, 2008;Flanders and Jones, 2009;Zahn et al, 2010). This dependence on deciduous woodland and riparian vegetation is perhaps even more important in our case study because these habitats are rare in our study area.…”

Section: Bats and Foraging Habitat Selectionsupporting

confidence: 93%

“…A model's predictive powers are highly dependent on the relevancy of the explanatory variables selected in the model (Rebelo and Jones, 2010). Although grazed pasture is recognized as an important foraging habitat for R. ferrumequinum and M. emarginatus (Dietz et al, 2013;Flanders and Jones, 2009), we could not include this variable in our HSMs because we did not have a precise map of grazed pasture in the study area. Landscape composition and configuration appear to be the best proxy for describing foraging habitat distribution (Rainho and Palmeirim, 2011).…”

Section: Model Performance For Mobile Species At a Fine Spatial Scalementioning

confidence: 99%

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Testing the relevance of using spatial modeling to predict foraging habitat suitability around bat maternity: A case study in Mediterranean landscape

Fonderflick

Azam

Brochier³

et al. 2015

Biological Conservation

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Section: Bats and Foraging Habitat Selectionsupporting

confidence: 93%

Section: Model Performance For Mobile Species At a Fine Spatial Scalementioning

confidence: 99%

Testing the relevance of using spatial modeling to predict foraging habitat suitability around bat maternity: A case study in Mediterranean landscape

Fonderflick

Azam

Brochier³

et al. 2015

Biological Conservation

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“…While the small scale (0.5 km) allow us to describe the near environment of the roost location, the core sustenance zone of juveniles and adults R. ferrumequinum are represented with the medium (1.5 km) and large scales (3.0 km) respectively (Duvergé and Jones 1994;Rossiter et al 2002;Flanders and Jones 2009;Dietz et al 2013;Collins 2016). The core sustenance zones for bats is expressed for a given species as its main foraging area surrounding the roost based on its average-maximum foraging radius.…”

Section: Environmental and Meteorological Variablesmentioning

confidence: 99%

“…When highly correlated variables were found (|r| C 0.7; Online Resource 4), we retained the variable having the highest perceived ecological importance (based on published literature, e.g. Jones 1994, 2003;Flanders and Jones 2009;Dietz et al 2013). When we found strong correlations between two variables having similar importance (e.g.…”

Section: Extrinsic Factorsmentioning

confidence: 99%

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Factors driving population recovery of the greater horseshoe bat (Rhinolophus ferrumequinum) in the UK: implications for conservation

et al. 2017

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Although populations of many bat species appear to be recovering in some European countries, the extrinsic and intrinsic factors driving these increases have not yet been assessed. Disentangling the benefits of conservation management from other factors such as climate change is a crucial step for improving evidence-based conservation strategies. We used the greater horseshoe bat (Rhinolophus ferrumequinum) as a case study for understanding the recovery of bat populations, as its north-western populations have increased substantially over the past two decades following severe population declines. Using summer roost count data from the UK National Bat Monitoring Programme spanning an 18 year period from 1997 to 2014, we investigated the effects of (i) landscape characteristics associated with the implementation of the agri-environment schemes on colony trends and size, and (ii) meteorological variables on annual colony growth rate. We also assessed the relationship between colony size and colony growth to investigate intrinsic factors such as an Allee effect. Our results indicated that colony size was positively related to a range of landscape features (e.g. amount of broadleaf woodland and grassland, and density of linear features) surrounding the roost, while the amount of artificial light at night had a significant negative effect. Spring temperatures and precipitation (the latter with a lag of one year) were associated with annual colony growth. We also identified a negative density-dependence effect within colonies. Though the conservation of essential landscape elements may have contributed to population increases in the long-term, we conclude that recent population recovery has also been driven by climate Communicated by Dirk Sven Schmeller.Electronic supplementary material The online version of this article (doi:10.1007/s10531-017-1320-1) contains supplementary material, which is available to authorized users. change. Finally we recommend that the conservation of photophobic bat species such as R. ferrumequinum should focus on both the improvement of foraging/commuting habitats and the creation of dark areas.

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Environmental correlates of geographic divergence in a phenotypic trait: A case study using bat echolocation

Maluleke

Jacobs

Winker

2017

Ecology and Evolution

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Divergence in phenotypic traits may arise from the interaction of different evolutionary forces, including different kinds of selection (e.g., ecological), genetic drift, and phenotypic plasticity. Sensory systems play an important role in survival and reproduction, and divergent selection on such systems may result in lineage diversification. Such diversification could be largely influenced by selection in different environments as a result of isolation by environment (IbE). We investigated this process using geographic variation in the resting echolocation frequency of the horseshoe bat species, Rhinolophus damarensis, as a test case. Bats were sampled along a latitudinal gradient ranging from 16°S to 32°S in the arid western half of southern Africa. We measured body size and peak resting frequencies (RF) from handheld individual bats. Three hypotheses for the divergence in RF were tested: (1) James’ Rule, (2) IbE, and (3) genetic drift through isolation by distance (IbD) to isolate the effects of body size, local climatic conditions, and geographic distance, respectively, on the resting frequency of R. damarensis. Our results did not support genetic drift because there was no correlation between RF variation and geographic distance. Our results also did not support James' Rule because there was no significant relationship between (1) geographic distances and RF, (2) body size and RF, or (3) body size and climatic variables. Instead, we found support for IbE in the form of a correlation between RF and both region and annual mean temperature, suggesting that RF variation may be the result of environmental discontinuities. The environmental discontinuities coincided with previously reported genetic divergence. Climatic gradients in conjunction with environmental discontinuities could lead to local adaptation in sensory signals and directed dispersal such that gene flow is restricted, allowing lineages to diverge. However, our study cannot exclude the role of processes like phenotypic plasticity in phenotypic variation.

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Roost Use, Ranging Behavior, and Diet of Greater Horseshoe Bats (Rhinolophus Ferrumequinum) Using a Transitional Roost

Cited by 34 publications

References 35 publications

Testing the relevance of using spatial modeling to predict foraging habitat suitability around bat maternity: A case study in Mediterranean landscape

Testing the relevance of using spatial modeling to predict foraging habitat suitability around bat maternity: A case study in Mediterranean landscape

Factors driving population recovery of the greater horseshoe bat (Rhinolophus ferrumequinum) in the UK: implications for conservation

Environmental correlates of geographic divergence in a phenotypic trait: A case study using bat echolocation

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