Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

Khazan, Emily S.; Bright, Eric G.; Beyer, Jessica E.

doi:10.1007/s10841-015-9791-4

Cited by 5 publications

(5 citation statements)

References 56 publications

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“…Recently, Richardson et al (2018) suggested that phytotelma fauna can be a useful bioindicator of ecosystem disturbance. This idea is supported by reports that AD impacts biomass and community structure of phytotelma invertebrates (Yanoviak et al, 2006;Khazan et al, 2015;Gossner et al, 2016). In some studies, changes in water PCPs have been linked to changes in communities of algae, archaea, bacteria, micro-and macroinvertebrates (Goffredi et al, 2011;Marino et al, 2011Marino et al, , 2013Carrias et al, 2012Carrias et al, , 2014Gossner et al, 2016;Louca et al, 2016Louca et al, , 2017Kratina et al, 2017).…”

Section: Resultsmentioning

confidence: 75%

In bromeliad phytotelma, anthropic disturbance does not affect the nematode trophic structure

Almeida

Filho

Souza

2020

Journal of Nematology

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Phytotelmata (sing. phytotelma) are plant-associated reservoirs of rainwater and organic debris. These freshwater ecosystems are found in tree and bamboo holes, pitcher plants, and tank-forming bromeliads. Some studies suggest that anthropic disturbance (AD) may change the physico-chemical properties (PCPs) of the water retained in the phytotelma, and indirectly impact its biota. Hence, new AD-bioindicators could be found in the phytotelma biota. To test this hypothesis, three areas of Atlantic Forest were selected, distinct only by the level of long-term AD. In these areas, we monitored the nematode trophic structure and the water PCPs in the bromeliad Neoregelia cruenta during two years (eight seasons). Significant differences among areas were found in some seasons for total nematode abundance and/or the abundance of some trophic groups, but no pattern emerged relative to the level of AD. Anthropic disturbance did not impact nematode trophic structure possibly because the water PCPs remained fairly similar in all three areas. Our results do not corroborate previous reports that AD alters phytotelma water. On the other hand, our findings support previous studies suggesting that nematodes inhabiting bromeliad phytotelma are not good candidates for AD-bioindicators.

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Section: Resultsmentioning

confidence: 75%

In bromeliad phytotelma, anthropic disturbance does not affect the nematode trophic structure

Almeida

Filho

Souza

2020

Journal of Nematology

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“…More detailed water chemistry measurements (e.g., nitrate, ammonium, and phosphate) are taken more rarely (but see Schmidl et al, 2008 ; Gossner, Lade, et al, 2016 ; Petermann et al, 2016 ). Characteristics of the surrounding environment such as wind speed and direction, canopy cover, and relative humidity are also rarely measured (but see Khazan et al, 2015 ; Petermann et al, 2020 ) but may be important to describe, for example, conditions for dispersal. Unfortunately, community studies rarely test and compare responses of individual species to environmental parameters (but see Schmidl et al, 2008 ; Gossner & Petermann, 2022 ).Thus, whether tree‐hole species have environmental limits and/or habitat preferences is largely unknown.…”

Section: Discussionmentioning

confidence: 99%

“…The few studies on the effect of anthropogenic environmental change on tree‐hole communities suggest that there are strong negative effects of land‐use change (Khazan et al, 2015 ; Yanoviak et al, 2006 ), forest fragmentation (Nicholas, 2016 ), and forest management intensity (Gossner, Lade, et al, 2016 ; Petermann et al, 2020 , 2016 ), largely operating in an indirect way by affecting habitat and resource availability of the species (see e.g., Gossner, Lade, et al, 2016 ; Petermann et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Aquatic islands in the sky: 100 years of research on water‐filled tree holes

Petermann

Goßner

2022

Ecology and Evolution

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Water‐filled tree holes are unique ecosystems that may occur high up in tree crowns and are essentially aquatic islands in the sky. Insect larvae, mesofauna, and other organisms colonize the waterbodies and feed on the accumulating detritus. Water‐filled tree holes are not only important habitats for these species but have been used as model systems in ecology. Here, we review more than 100 years of research on tree‐hole inhabiting organisms and show that most studies focus on selected or even single species (most of which are mosquitoes), whereas only few studies examine groups other than insects, especially in the tropics. Using a vote counting of results and a meta‐analysis of community studies, we show that the effects of tree‐hole size and resources on abundance and richness were investigated most frequently. Both were found to have a positive effect, but effect sizes were modulated by site‐specific environmental variables such as temperature or precipitation. We also show that parameters such as the height of the tree holes above ground, tree‐hole density, predation, and detritus type can be important drivers of organism abundance or richness but are less often tested. We identify several important research gaps and potential avenues for future research. Specifically, future studies should investigate the structure, functions, and temporal dynamics of tree‐hole food webs and their cross‐system interactions, for example, with terrestrial predators that act as a connection to their terrestrial surroundings in meta‐ecosystems. Global observational or experimental tree‐hole studies could contribute pivotal information on spatial variation of community structure and environmental drivers of community assembly. With a better understanding of these unique aquatic habitats in terrestrial ecosystems, natural and artificial tree holes can not only serve as model systems for addressing fundamental ecological questions but also serve as indicator systems of the impacts of environmental change on ecosystems.

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“…They do not account for habitat loss due to anthropogenic factors such as deforestation and urbanization. Further study is needed to adequately identify potential future habitats based on bioclimatic variables, urbanization, and vegetation modelling (Bowden et al 2011, Khazan et al 2015, Rogalski et al 2017, Kraemer et al 2019. Occurrence records tend to be clustered around areas easily accessed near roadways, towns and cities, and bodies of water near homes or areas of interest to collectors and observers (Newbold 2010).…”

Section: Discussionmentioning

confidence: 99%

Potential Distribution of the Biocontrol Agent Toxorhynchites rutilus By 2070

Marshall

Butler

2020

Journal of the American Mosquito Control Association

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Climate change projections indicate that mosquito distributions will expand to include new areas of North America, increasing human exposure to mosquito-borne disease. Controlling these vectors is imperative, as mosquito-borne disease incidence will rise in response to expansion of mosquito range and increased seasonality. One means of mosquito control used in the USA is the biocontrol agent, Toxorhynchites rutilus. Climate change will open new habitats for its use by vector control organizations, but the extent of this change in habitat is currently unknown. We used a maximum entropy approach to create species distribution models for Tx. rutilus under 4 climate change scenarios by 2070. Mean temperature of warmest quarter (22.6°C to 29.1°C), annual precipitation (1,025.15 mm to 1,529.40 mm), and precipitation seasonality (≤17.86) are the most important bioclimatic variables for suitable habitat. The center of current possible habitat distribution of Tx. rutilus is in central Tennessee. Depending upon the scenario, we expect centroids to shift north-northeast by 97.68 km to 280.16 km by 2070. The extreme change in area of greater than 50% suitable habitat probability is 141.14% with 99.44% area retained. Our models indicate limited change in current habitat as well as creation of new habitat. These results are promising for North American mosquito control programs for the continued and potential combat of vector mosquitoes using Tx. rutilus.

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Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

Cited by 5 publications

References 56 publications

In bromeliad phytotelma, anthropic disturbance does not affect the nematode trophic structure

In bromeliad phytotelma, anthropic disturbance does not affect the nematode trophic structure

Aquatic islands in the sky: 100 years of research on water‐filled tree holes

Potential Distribution of the Biocontrol Agent Toxorhynchites rutilus By 2070

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