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Bats and wetlands: synthesising gaps in current knowledge and future opportunities for conservation
Author(s) -
Mas Maria,
Flaquer Carles,
Rebelo Hugo,
LópezBaucells Adrià
Publication year - 2021
Publication title -
mammal review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.574
H-Index - 76
eISSN - 1365-2907
pISSN - 0305-1838
DOI - 10.1111/mam.12243
Subject(s) - wetland , habitat , biodiversity , geography , ecology , environmental resource management , biodiversity conservation , ecosystem , wetland conservation , ecosystem services , environmental planning , biology , environmental science
Abstract Wetland areas have decreased by up to 33% globally over the past ten years, threatening the biodiversity they support and essential ecosystem services they provide. Despite this, the importance of wetlands for bat conservation and the consequences of losing these habitats are not comprehensively understood. Through a systematic literature review, we quantified the knowledge gaps regarding bats in wetlands by: 1) assessing research trends over time; 2) evaluating research biases in geography, themes, species, seasons, and methodology; 3) creating the ‘bat Knowledge Index’ (bKI), a standard indicator for measuring how well‐studied bats in wetlands are per country; 4) compiling and summarising the ecological responses of bats to wetlands; and 5) assessing how bat researchers perceive the role of wetlands for bat conservation. We found strong similarities between the reviewed studies and the bat researchers’ perceptions. However, although 75% of respondents considered wetlands important for bat conservation, they rarely studied these habitats. Most of the studies took place in developed countries, leaving critical gaps in countries where wetlands are rapidly decreasing. The bKI can be used as a tool for land managers to prioritise conservation actions and resources for the protection of bats in wetlands geographically. Research topics were found to be biased towards habitat selection and species inventory, with many topics only superficially explored. There was also an important seasonal bias, resulting in many unanswered questions during energetically demanding periods for bats (e.g. migration). However, constantly evolving technological developments, such as bat lures and tracking devices, might aid new studies in these habitats. Up to 66% of studies reported that wetlands benefit bat activity or species richness, mainly because of high prey densities and the availability of fresh water. However, the low number of studies and all the identified research gaps make ‘bats and wetlands’ a largely underexplored ecological interaction between a poorly studied animal taxon and an increasingly threatened habitat.

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