Results 81 to 90 of about 5,779 (241)

Diet of tropical insectivorous birds in lowland Malaysian rainforest

open access: yes, 2018
Despite the importance of diet in avian ecology, knowledge of bird diet in tropical regions, particularly South-East Asia, is limited. Assessing predator–prey relationships of how energy flows across ecosystems provides insight into niche segregation of ...
Abdullah, Nurul Ashikin   +5 more
core   +1 more source

Predicting demographically-sustainable rates of adaptation: can great tit breeding time keep pace with climate change? [PDF]

open access: yes, 2013
Populations need to adapt to sustained climate change, which requires micro-evolutionary change in the long term. A key question is how the rate of this micro-evolutionary change compares with the rate of environmental change, given that theoretically ...
Gienapp, P.   +21 more
core   +1 more source

Restoring Lateral Connectivity to Anthropogenic Riverscapes: Six Lessons From Stage Zero

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Centuries of river modification, particularly straightening and incision, have severely reduced lateral connectivity between rivers and their floodplains. As a result, Stage 0 riverscapes, characterised by high lateral connectivity (e.g., anastomosing or wetland riverscapes), are now rare in anthropogenic landscapes.
Richard J. Mason   +8 more
wiley   +1 more source

INFLUENCE OF LIVESTOCK AREAS ON BIRD COMMUNITIES IN NORTHERN VERACRUZ, MEXICO

open access: yesTropical and Subtropical Agroecosystems
Background. Livestock activities generate changes in ecosystems that impact bird communities, which fulfill diverse ecological functions such as pollination, fruit and seed dispersal, and biological control of insects and/or pests. Objective.
Juan Cipriano Anastasio   +3 more
doaj   +1 more source

The Effects of Spraying Deltamethrin Against Tsetse Flies on Insectivorous Birds in the Okavango Delta, Botswana [PDF]

open access: yes, 2003
I investigated the effects of spraying deltamethrin for tsetse fly control on bird populations in the Okavango Delta, Botswana. Because deltamethrin has low toxicity to vertebrates, effects on birds would have been indirect and caused by reductions in ...
Pendleton, Frank N
core  

Dietary differentiation of two co‐occurring common bat species (Eptesicus nilssonii and Pipistrellus pygmaeus)

open access: yesWildlife Biology, EarlyView.
Sympatric bat species can co‐exist and avoid interspecific competition via niche differentiation e.g. diet. Detecting dietary differences can be achieved by comparing dietary niches of sympatric and allopatric populations. If dietary overlap is higher in sympatry versus allopatry, co‐occurrence may be altering the dietary niche of the species.
Heather Wood   +3 more
wiley   +1 more source

Tree cover and geographic origin of tree species drive bird functional groups in urban environments

open access: yesWildlife Biology, EarlyView.
Urban trees provide habitat and resources for wild species in cities and support biodiversity provision of ecosystem services, among which insect control is particularly relevant. Predators of insects are promoted by the presence of trees and, in turn, may enhance biosecurity of the trees.
Marco Basile   +2 more
wiley   +1 more source

Effects of insectivorous birds on tree growth in the Maurepas Swamp

open access: yes, 2006
Coastal forests in Louisiana are in decline due to natural and human caused changes in the hydrology of the region. Baldcypress and water tupelo trees have been further stressed by caterpillar herbivory in recent decades.
Fox, David M.
core   +1 more source

Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies

open access: yesWildlife Biology, EarlyView.
Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka   +7 more
wiley   +1 more source

Lianas maintain insectivorous bird abundance and diversity in a neotropical forest

open access: yesEcology, 2020
AbstractThe spatial habitat heterogeneity hypothesis posits that habitat complexity increases the abundance and diversity of species. In tropical forests, lianas add substantial habitat heterogeneity and complexity throughout the vertical forest profile, which may maintain animal abundance and diversity.
Stefan A. Schnitzer   +3 more
openaire   +3 more sources

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