Different bat guilds have distinct functional responses to elevation

Mancini, Matheus Camargo Silva; Laurindo, Rafael de Souza; Hintze, Frederico; Mello, Rodrigo de Macêdo; Gregorin, Renato

doi:10.1016/j.actao.2019.03.004

Cited by 12 publications

(5 citation statements)

References 63 publications

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“…3 a), paralleling other tropical elevational gradients e.g. : Manu National Park in Peru 4 , Mount Kilimanjaro in Tanzania 56 , Mount Nimba in tropical West Africa 26 and eastern Brazilian gradients 27 , 57 . However, it must be noted that our gradient starts from 1500 m asl instead of the foothills.…”

Section: Discussionmentioning

confidence: 80%

“…4 a). Functional underdispersion in high elevation communities is observed in bats in West Africa 26 and in the Atlantic Forest of Brazil 27 , tropical bird communities 17 , 18 and plants in the western Himalaya 29 . This suggests that environmental filtering may be a driving force in structuring high elevation communities of diverse taxa in mountains, at least, in the tropical and subtropical belt.…”

Section: Discussionmentioning

confidence: 99%

“…FD has been observed to decrease 26 or increase 4 only at the highest elevations. Similarly, different studies found that environmental filtering leads to different traits dominating assemblages at high elevations: wing manoeuvrability 27 vs smaller body sizes 4 . The variation in PD with elevation is very poorly understood in bats.…”

Section: Introductionmentioning

confidence: 94%

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Functional diversity of Himalayan bat communities declines at high elevation without the loss of phylogenetic diversity

Chakravarty

Mohan

Voigt

et al. 2021

Sci Rep

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Species richness exhibits well-known patterns across elevational gradients in various taxa, but represents only one aspect of quantifying biodiversity patterns. Functional and phylogenetic diversity have received much less attention, particularly for vertebrate taxa. There is still a limited understanding of how functional, phylogenetic and taxonomic diversity change in concert across large gradients of elevation. Here, we focused on the Himalaya—representing the largest elevational gradients in the world—to investigate the patterns of taxonomic, functional and phylogenetic diversity in a bat assemblage. Combining field data on species occurrence, relative abundance, and functional traits with measures of phylogenetic diversity, we found that bat species richness and functional diversity declined at high elevation but phylogenetic diversity remained unchanged. At the lowest elevation, we observed low functional dispersion despite high species and functional richness, suggesting a niche packing mechanism. The decline in functional richness, dispersion, and divergence at the highest elevation is consistent with patterns observed due to environmental filtering. These patterns are driven by the absence of rhinolophid bats, four congeners with extreme trait values. Our data, some of the first on mammals from the Himalayan region, suggest that in bat assemblages with relatively high species diversity, phylogenetic diversity may not be a substitute to measure functional diversity.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

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Functional diversity of Himalayan bat communities declines at high elevation without the loss of phylogenetic diversity

Chakravarty

Mohan

Voigt

et al. 2021

Sci Rep

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“…The enormous geographic extension of the Cerrado (over 2 million Km 2 ) and its central position within the Neotropical region provide direct contact with other biomes, such as the Amazon Forest to the north, the Atlantic Forest to the south and southeast, the Caatinga to the northeast, and the Chaco and Pantanal to the southwest (Motta et al., 2002). Together, these factors lead to the formation of latitudinal and elevational gradients, which directly influence vegetation structure and function (Scalon et al., 2021; Simon & Proença, 2000) and the availability of habitats for animals (Hawkins et al., 2003; Mancini et al., 2019; McCain, 2007).…”

Section: Introductionmentioning

confidence: 99%

Cerrado bat community assembly is determined by both present‐day and historical factors

Silva,

Oliveira,

Domingos

2024

Journal of Biogeography

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AimTo investigate the influence of ecological factors, geologic and climatic history on current diversity patterns of bat communities. We predicted that (i) our three different biodiversity dimensions (species richness, functional and phylogenetic diversity) will have a positive relationship with habitat heterogeneity; (ii) variation in phylogenetic diversity will be positively influenced by elevation; (iii) biodiversity dimensions will be influenced by climatic stability, with less diversity in regions with higher climatic instability.LocationNeotropical Savannah (Cerrado).MethodsWe calculated nine metrics: species richness, functional diversity, phylogenetic diversity, mean paired functional distance (MFD) and phylogenetic distances (MPD), richness‐corrected functional diversity (SES‐FD), richness‐corrected phylogenetic diversity (SES‐PD) and richness‐corrected mean functional and phylogenetic distances (SES.MFD and SES.MPD) using distribution records for 111 bat species. Habitat heterogeneity, climatic variables, elevation, floristic and climatic stability were used as independent variables. We used hierarchical Bayesian models to spatialise biodiversity dimensions based on the best predictors.ResultsCerrado habitat heterogeneity is important for phylogenetic diversity and mean functional and paired phylogenetic distances. Precipitation, temperature, elevation, habitat heterogeneity, and climatic stability were the most important predictors of Cerrado bat biodiversity. Species richness is inversely related to climatic instability, which is the best predictor of this metric. There is a decline in species richness in regions where the floristic composition has been more altered during the last 30,000 years, mainly in southern Cerrado.Main ConclusionsPresent‐day and historical factors simultaneously explain the biodiversity dimensions of bat communities in the Cerrado. Habitat heterogeneity is a major driver of phylogenetic diversity of Cerrado bats, and species of closely related lineages share habitats with homogeneous vegetation. Cerrado climatic changes and geologic history influenced the observed diversity metrics (PD and FD) and the ones corrected for species richness (SES‐PD and SES‐FD) in opposite ways. Species richness corrected metrics (SES‐PD and SES‐FD) indicate that species filtered by adaptive traits mainly occupied regions of climatic instability.

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“…Species are often grouped together into guilds that share similar foraging strategies and microhabitat requirements, on the basis of their echolocation call characteristics and wing shape (Schnitzler and Kalko 2001;Denzinger and Schnitzler 2013;Denzinger et al 2016). In practice, bat guilds represent functional groups (Schnitzler and Kalko 2001;Suarez-Rubio et al 2018), which are used to understand patterns in species richness (Brown et al 2000) and response to changing environments (Mancini et al 2019;Newbold et al 2020). A decrease, or disappearance, of a functional group is often associated with a decrease in ecological or functional diversity, when species within that group are negatively affected by an environmental change (Storkey 2006;Suarez-Rubio et al 2018;Newbold et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of fire on insectivorous bat activity in northern Australia: does fire intensity matter on a local scale?

Broken-Brow

Hitch²,

Armstrong

et al. 2019

Aust. J. Zool.

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Fire is notably becoming more intense, frequent and widespread due to climate change. In northern Australia, inappropriate fire regimes have been implicated in mammal declines, yet nothing is known about how different aspects of fire regimes affect bats in this region. This study aimed to determine how fire intensity, associated with seasonality, affects insectivorous bats on a local scale. An experimental M BACI approach was used on five site replicates across Cape York Peninsula, where ultrasonic detectors were used to determine the activity of insectivorous bats in response to low intensity burns (LIBs) and high intensity burns (HIBs) on a local scale. Total bat activity increased due to LIBs, but showed no response to HIBs. Activity of edge-open guild bats also increased due to LIBs but decreased in response to HIBs. Activity of open guild bats was unaffected by LIBs, but exhibited a strong positive response to HIBs. Activity of closed guild bats showed no response to fire, or fire intensity. Responses were likely derived from changes in habitat structure and prey availability. Given that each bat guild responded differently to each fire intensity, this lends support to the ‘pyrodiversity begets biodiversity’ concept, which is currently the basis for many fire management practices for conservation in northern Australia.

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Different bat guilds have distinct functional responses to elevation

Cited by 12 publications

References 63 publications

Functional diversity of Himalayan bat communities declines at high elevation without the loss of phylogenetic diversity

Functional diversity of Himalayan bat communities declines at high elevation without the loss of phylogenetic diversity

Cerrado bat community assembly is determined by both present‐day and historical factors

Effect of fire on insectivorous bat activity in northern Australia: does fire intensity matter on a local scale?

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