In case of Q fever endocarditis, however, the diagnosis is usually more complex and vegetations are rarely seen by echocardiography [ 18, 24, 25].
We believe that urban forest remnants with more complex and diverse vegetation are possibly more likely to maintain higher resilience in the landscape than open field parks or parks with suppressed or altered vegetation.
Indeed, connectivity between vascular plant communities might be higher in the Scandes than in the Alps: the more complex altitudinal zonation of vegetation, the greater geologic patchiness and the longer history of agricultural land-use in the Alps are more likely to generate island-like distributions of alpine plant communities occurring closer to isolated mountain summits in the Alps.
Most significantly, we found that the response of the butterfly community to vegetation in a reconstructed prairie is more complex than simply a response to vegetation diversity.
Our work demonstrates that both trees and grasses can be associated with narrower channel widths and that the causal link between width and vegetation type is more complex than usually acknowledged.
They speculated that the complex interactions between climate and vegetation might require more complex modelling to reveal the relationships between these factors.
Due to earlier green-up, vegetation coverage increases and canopy structure becomes more complex, leading to a greater restrictive effect of the vegetation on surface wind speed in the dust storm season.
Taken together, tall, complex vegetation should generally provide more food resources (Lawton, 1983), lower predation risk (Belovsky et al., 1990) and more opportunities for coexistence of arthropods than short vegetation, for instance through vertical niche differentiation (Denno, 1980).
Aquatic nests of grebes and other freshwater birds are only slightly more complex, often made just by piling up vegetation until it forms a floating mass.
