Results 71 to 80 of about 38,928 (270)

Fruiting Season Length Restricts Global Distribution of Female-Only Parental Care in Frugivorous Passerine Birds. [PDF]

open access: yesPLoS ONE, 2016
Food availability is known to influence parental care and mating systems in passerine birds. Altricial chicks make uni-parental care particularly demanding for passerines and parental investment is known to increase with decreasing food availability.
Sahas Barve, Frank A La Sorte
doaj   +1 more source

Provenance does matter: links between winter trophic segregation and the migratory origins of European robins [PDF]

open access: yes, 2016
Amongst migratory species, it is common to find individuals from different populations or geographical origins sharing staging or wintering areas.
Bearhop, Stuart,   +7 more
core   +1 more source

Changing food availability and its effect on the heritability of offspring size in woodland passerine birds

open access: yesJournal of Animal Ecology, EarlyView.
Vatka et al. investigated how changing food abundance affects evolutionary potential of offsprings' body size traits in two woodland passerines. Food availability increased over the 25‐year‐long study period, accompanied by increases in body mass.
Emma Vatka   +3 more
wiley   +1 more source

Age-specific effects on reproductive performance of grassland songbirds nesting in agricultural habitats

open access: yesAvian Conservation and Ecology, 2022
Clutch size and number of young fledged has been shown to increase with female age until approximately mid-life, when reproductive performance declines. We used a long-term dataset (2002–019) to investigate age-specific effects on reproductive parameters
Olivia M. Scott   +2 more
doaj  

Host Exploitation by Cuckoos in China: A Review and Real‐Time Tracking Program for Parasitism Records

open access: yesIntegrative Zoology, EarlyView.
China is a global hotspot for cuckoo‐host diversity, with 17 cuckoo species, exploiting 142 host species. We reveal adaptive matching in body size and egg traits, along with niche partitioning among cuckoos, while identifying eight new host species.
Tao Liu, Canchao Yang
wiley   +1 more source

Datasets of Bird Species Composition in a Land Reclamation Area of Lake Kahokugata, Central Japan, in Relation to Various Farmland Types

open access: yesEcology and Evolution
Agricultural intensification and land reclamation have transformed natural wetlands into farmland across East Asia, which has been a threat to bird diversity, particularly wetland and grassland specialists.
Masumi Hisano   +3 more
doaj   +1 more source

Non-passerine birds from Laguna Melincué Ramsar Site, Santa Fe province, Argentina [PDF]

open access: yesCheck List, 2015
We present a waterbird inventory of the Laguna Melincué Ramsar Site in southern Santa Fe province, Argentina. We record 109 species from 28 families of non-passerine birds, including the 14 Nearctic species, four southern austral migrant species, three ...
Marcelo Romano   +3 more
doaj   +3 more sources

Geographic range size and evolutionary age in birds [PDF]

open access: yes, 2000
Together with patterns of speciation and extinction, post-speciation transformations in the range sizes of individual species determine the form of contemporary species-range-size distributions.
Kevin J. Gaston   +2 more
core   +2 more sources

Passerine morphology: external measurements of approximately one‐quarter of passerine bird species [PDF]

open access: yesEcology, 2017
AbstractStudies of community organization and clade diversification that include functional traits have become an important component of the analysis of ecological and evolved systems. Such studies frequently are limited by availability of consistently collected data. Here, I present a data set including eight measurements of the external morphology of
openaire   +2 more sources

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