Effects of reduced impact logging on bat biodiversity in terra firme forest of lowland Amazonia

Castro-Arellano, Iván; Presley, Steven J.; Saldanha, Luiz; Willig, Michael R.; Wunderle, Joseph M.

doi:10.1016/j.biocon.2007.04.025

Cited by 51 publications

(57 citation statements)

References 62 publications

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“…Carollia perspicillata has commonly been recorded as the dominant species in different vegetation formations, regenerating areas, rocky outcrops and caves (Bredt et al 1999, Esbérard et al 2005, Bordignon 2006, Bernard & Fenton 2007, Castro-Arellano et al 2007. However, C. perspicillata is generally less abundant than A. planirostris, P. lineatus and S. lillium in the southern Cerrado (Camargo et al 2009, Cunha et al 2009, Alho et al 2011.…”

Section: Artibeus Cinereusmentioning

confidence: 99%

Bat assemblage in savanna remnants of Sonora, central-western Brazil

2011

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Abstract:The Cerrado (savanna) is a wide Neotropical formation, but the knowledge on the occurrence and distribution of bat species for this phytogeographic region is scarce, especially in the western portion. Here we address what are the bat species and their relative abundances in a western Cerrado site, municipality of Sonora, Mato Grosso do Sul, Brazil. Bats were mist-netted in eight non consecutive months over the course of two years. Sampled bats (n = 507) belonged to 18 species. The estimator Jackknife 1 estimated 22 species, and diversity (H') was 1.6. Richness and diversity of bats in Sonora were slightly higher than in the southern Cerrado, and similar to or lower than in the central Cerrado. Frugivorous species predominated, as expected, however richness and abundance of nectarivorous were unexpectedly high. Carollia perspicillata was the dominant species. The endemic bat Lonchophylla dekeyseri was highly abundant in Sonora, which enhances the importance of conserving the savanna remnants in this region. Resumo: O Cerrado (savana) é uma ampla formação neotropical, porém o conhecimento sobre a ocorrência e distribuição de espécies de morcegos é escasso para esta região fitogeográfica, principalmente na porção oeste. Estudamos aqui quais são as espécies de morcegos e suas abundâncias relativas em uma localidade da porção oeste do Cerrado, no município de Sonora, Mato Grosso do Sul, Brasil. Morcegos foram capturados em redes-de-neblina em oito meses não consecutivos ao longo de dois anos. Os morcegos amostrados (n = 507) pertenceram a 18 espécies. O estimador Jackknife 1 estimou 22 espécies, e a diversidade (H') foi 1,6. A riqueza e a diversidade de morcegos em Sonora foram pouco maiores que na porção sul do Cerrado, e semelhantes ou menores que no Cerrado central. Espécies frugívoras predominaram, como esperado, porém a riqueza e abundância de nectarívoras foram inesperadamente altas. Carollia perspicillata foi a espécie dominante. O morcego endêmico Lonchophylla dekeyseri foi muito abundante em Sonora, fato que aumenta a importância de conservar os remanescentes de savana dessa região. We evaluated suffi ciency of sampling using rarefaction curves based on the cumulative quantity of captured individuals, and estimated total expected richness with Jackknife 1 estimator (1000 randomizations) based on sampling nights. Shannon's diversity index (H'), using neperian logarithm and the 95% CI (bootstrap, 1000 randomizations), were calculated for the bat assemblage. Analyses were done in the Vegan package (Oksanen et al. 2010), R program (R Development Core Team 2010). ResultsWe captured 507 individuals belonging to four families, 14 genera and 18 species ( Table 1). The rarefaction curve (Figure 1) showed that capture effort was suffi cient to include most of the species at the study site. The Jackknife 1 estimated 22 ± 1.9 (mean ± SD) species of bats, thus our observed richness (n = 18) included approximately 82% of the bat species which could be captured in mist-nets. The diversity (H') was 1.6, with 95% CI...

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Section: Artibeus Cinereusmentioning

confidence: 99%

Bat assemblage in savanna remnants of Sonora, central-western Brazil

2011

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“…Additionally, open-space bats may favor a deeper overstory canopy because of its association with plant species they use as resources (e.g., food, roosts, perching sites [32]). Certainly, a high insect abundance (i.e., bat food) has been associated with the canopy of Neotropical rainforests [72][73][74], as food resources for phytophagous insects (e.g., foliage, flowers, fruits) are more abundant in the canopy [75], and there is a greater diversity of niches than in the midstory or understory [76].…”

Section: Discussionmentioning

confidence: 99%

Forest Structure and Composition Affect Bats in a Tropical Evergreen Broadleaf Forest

Willcox

Giuliano

Watine

et al. 2017

Forests

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Abstract:The lack of knowledge regarding many aerial insectivorous bats and their relationships with forest characteristics limits conservation decision-making for tropical rainforests and for this important bat group. Therefore, our objective was to understand the effects of forest structure and composition on these bats in the Neotropical evergreen broadleaf forest of Belize, Central America. We conducted bat monitoring and quantified 51 forest characteristics at 24 locations in the Chiquibul Forest Reserve (CFR) from May-July 2014. Simple linear and backward stepwise multiple regression analyses were used to examine relationships between bat richness and activity and forest characteristics. Bat genus richness and total activity were directly related to overstory canopy depth and inversely related to ≤4 structural characteristics. Lasiurus, Myotis, Promops, and Pteronotus spp. were affected by ≤7 forest characteristics; the responses were explained by preferences for less-cluttered, open space for flying and foraging and species-specific food and cover requirements. However, bat richness and activity were often unaffected by forest structure and composition in the CFR, suggesting that at this taxonomic level, bats may not be very sensitive to variation in forest characteristics, may not be very useful indicators of alteration, and may have some tolerance for disturbance and change.

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“…Cullen Junior et al (2000) reported lack of cascading effects of hunting on populations of non-hunted species -but there is no reason to expect that they should decrease with the removal of game. In a few cases, however, important cascading effects were detected, e.g., RIL can affect forest structure making the habitat unsuitable for bats (Castro-Arellano et al 2007), birds (Barlow et al 2006 and fish (Dias et al 2009). Cascading effects caused even by a particularly careful technique such as RIL is a disturbing result.…”

Section: Number Of Studies Number Of Cases Study # (In Appendix S1)mentioning

confidence: 99%

“…For example, all cases of timber exploitation studied referred either to RIL or to selective logging, techniques often regarded as sustainable (Castro-Arellano et al 2007;Costa & Magnusson, 2003). Similarly, most studies on NTFP referred to exploitations in indigenous land or Extrativist Reserves (e.g.…”

Section: Demographic Analysis Totalmentioning

confidence: 99%

How Sustainable Is The Use of Natural Resources in Brazil?

Fernandez¹,

Antunes²,

Macedo³

et al. 2012

Nat. Conserv.

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The concept of sustainability is that present use of a resource would not prevent it being available for future generations. For exploited biological populations, sustainability is a demographic question. Herein we reviewed studies (released 1987-2010) evaluating presumably sustainable use of timber, hunting and non-timber forest products (NTFP) in Brazil. The studies analysed 239 cases (each case being one species evaluated in one study). Sustainability could be evaluated only in 126 cases studied with a demographic approach, 48% of which (61/126) showed unsustainable exploitations. The situation was worst for timber (24/39), intermediate for hunting (35/78) and best for NTFP (2/9). Cascading effects on other species were detected in 11/66 cases. Our results show that many presumed sustainable natural resource exploitations in Brazil are actually not sustainable. Clearly, sustainability needs more testing; the concept must be used more carefully.

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Effects of reduced impact logging on bat biodiversity in terra firme forest of lowland Amazonia

Cited by 51 publications

References 62 publications

Bat assemblage in savanna remnants of Sonora, central-western Brazil

Bat assemblage in savanna remnants of Sonora, central-western Brazil

Forest Structure and Composition Affect Bats in a Tropical Evergreen Broadleaf Forest

How Sustainable Is The Use of Natural Resources in Brazil?

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