Results 71 to 80 of about 28,639 (306)
Bulletin of the Iraq Natural History Museum, 2019 Birds of prey (Raptors) are top predator avian species that many migrate annually through Mesopotamian marshes in southern Iraq toward their wintering grounds in Arabia and Africa, while others are breeding residents; however, information on ...
Omar F. Al-Sheikhly, Ahmad J. Al-Azawi
doaj +1 more source
Loss of diversity in the community of small mammals of Doñana National Park (SW Spain): another effect of the local climate change ? [PDF]
, 2017 Doñana National Park is an important wetland located in the southwest Spain forming part of the Mediterranean Basin, a "biodiversity hotspot" especially vulnerable to climate change.
Fernández, M. Carmen +3 more
core
Polygamy in the Marsh Harrier, Circus aeruginosus: Individual Variation in Hunting Performance and Number of Mates [PDF]
, 1982 1. Theories postulating that sexual task differentiation may lead to polygamy such that the sex investing the least effort in raising the offspring, engages in simultaneous matings, contrast with polygyny in raptors where the male provides most of the ...
Altenburg, Wibe, +3 more
core +1 more source
Oikos, EarlyView.Functional diversity (FD) is an essential community property connecting biodiversity, ecosystem functioning, and conservation objectives. In agricultural landscapes, avian communities, which play key functional roles, are facing large‐scale biodiversity erosion, largely due to land‐use changes.
Pietro Tirozzi +3 more
wiley +1 more source
Functionally referential signals: a promising paradigm whose time has passed [PDF]
, 2012 Finding the evolutionary origins of human language in the communication systems of our closest living relatives has, for the last several decades, been a major goal of many in the field of animal communication generally and primate communication ...
Fischer, Julia, Wheeler, Brandon C
core +1 more source
Oikos, EarlyView.Annual survival is a key demographic parameter driving population trends in wildlife populations. However, despite numerous species‐specific or regional studies, global reviews of the factors affecting the survival of declining taxa remain scarce. Here, we investigated annual survival of fledged immature and adult shorebirds, a globally‐distributed and
Guillaume Dillenseger +5 more
wiley +1 more source
Species Composition and Diversity of Hawk Populations in Northeastern Arkansas [PDF]
, 1978 Species composition and diversity of hawk populations were analyzed for northeastern Arkansas by the use of roadside censuses conducted in September through April from 1974- 1977.
Hanebrink, Earl L. +2 more
core +2 more sources
Oikos, EarlyView.Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen +2 more
wiley +1 more source
How to Argue for Pragmatic Encroachment [PDF]
, 2018 Purists think that changes in our practical interests can’t affect what we know unless those changes are truth-relevant with respect to the propositions in question. Impurists disagree.
Roeber, Blake
core
PLANTS, PEOPLE, PLANET, EarlyView.Overharvesting of wild edible plants poses a growing threat to plant populations worldwide, particularly for slow‐growing species with limited regeneration. We quantified fruit extraction from the third‐largest known population of Jubaea chilensis—an endangered palm endemic to Chile—modeled the critical harvest threshold, and assessed consumer ...
Sebastián Cordero +7 more
wiley +1 more source