Can we face different types of storms under the same umbrella? Efficiency and consistency of connectivity umbrellas across different patchy landscape patterns

Diniz, Milena Fiuza; Machado, Ricardo Bomfim; Oliveira, Arthur Ângelo Bispo de; Marco Júnior, Paulo De

Can we face different types of storms under the same umbrella? Efficiency and consistency of connectivity umbrellas across different patchy landscape patterns

Data

2018

Autores

Diniz, Milena Fiuza

Machado, Ricardo Bomfim

Oliveira, Arthur Ângelo Bispo de

Marco Júnior, Paulo De

Resumo

Context The umbrella approach applied to landscape connectivity is based on the principle that the conservation or restoration of the dispersal habitats for some species also can facilitate the movement of others. Species traits alone do not seem to be enough to identify good connectivity umbrella species, showing the need to investigate the influence of additional factors on this property. Objectives We test whether the potential of a species as a connectivity umbrella can be influenced by landscape composition and configuration. Methods We simulated movement routes for eight hypothetical species in artificial patchy landscapes with different levels of fragmentation, habitat amount and matrix permeability. We determined the effectiveness of the connectivity umbrella of the virtual species using pairwise intersections of important habitats for their movements in all landscapes. Results The connectivity umbrella performance of all species was affected by the interaction of fragmentation level and habitat amount. In general, species performance increased with decreasing fragmentation and increasing habitat amount. In most landscapes and considering the same dispersal threshold, species able to move more easily through the matrix showed higher umbrella performance than those for which the matrix offered greater resistance. Conclusions The connectivity umbrella is not a static feature that depends only on the species traits, but rather a dynamic property that also varies according to the landscape attributes. Therefore, we do not recommend spatial transferability of the connectivity umbrella species identified in a landscape to others that have divergent levels of fragmentation and habitat quantity.

Palavras-chave

Connectivity umbrella species, Virtual species, Fragmentation, Spatial transferability, Habitat loss, Matrix permeability

Citação

DINIZ, Milena F. et al. Can we face different types of storms under the same umbrella? Efficiency and consistency of connectivity umbrellas across different patchy landscape patterns. Landscape Ecology, Berlin, v. 33, p. 1911-1923, 2018. DOI: 10.1007/s10980-018-0720-2. Disponível em: https://link.springer.com/article/10.1007/s10980-018-0720-2. Acesso em: 25 jul. 2023.