Results 51 to 60 of about 7,645 (228)
Condition of streams and other aquatic resources in Kane County Forest Preserve District parcels [PDF]
Kane County Forest Preserve District Grant/Contract No: 2005-5291INHS Technical Report Prepared for Kane County Forest Preserve ...
DeWalt, R. Edward
core
Occurrence of Libellulid Dragonflies (Odonata: Libellulidae) in Southeastern Michigan and Adjacent Essex County, Ontario [PDF]
During 1994-1995 extensive field work was conducted in southeastern Michigan in an attempt to assess the species population and composition of libellulid dragonflies.
Kielb, Michael A
core +3 more sources
Salty conditions in urban stormwater ponds can influence dispersal timing in species‐specific ways for actively dispersing aquatic heteropteran insects. Assaying multiple aspects of dispersal propensity, Hesperocorixa obliqua emigrated earlier in stormwater pond conditions while overall probabilities remained unchanged; Notonecta undulata emigration ...
Ilia Maria C. Ferzoco +1 more
wiley +1 more source
Allozyme and mitochondrial DNA variability within the New Zealand damselfly genera Xanthocnemis, Austrolestes, and Ischnura (Odonata) [PDF]
We collected larval damselflies from 17 sites in the North, South and Chatham Islands, and tested the hypotheses that: (1) genetic markers (e.g., allozymes, mtDNA) would successfully ¬discriminate taxa; and (2) the dispersal capabilities of adult ...
Hebert PDN +8 more
core +2 more sources
Well‐preserved heathlands of NW Italy are the main overwintering habitat of Sympecma paedisca, while grassy margins in farmland are used only in summer and are avoided from autumn onwards. Grassy margins in farmland act as corridors during the species' migrations between its breeding (ricefields) and overwintering (lowland heathlands) grounds ...
Leonardo Siddi +3 more
wiley +1 more source
Commonly called “helicopter damselflies”, Mecistogaster species (Coenagrionidae) are recognized by their large body size in comparison with other Odonata species, ability to flap both anterior and posterior wings in opposite directions, and preference ...
Marciel Elio Rodrigues +3 more
doaj +1 more source
Odonata assemblages in anthropogenically impacted lotic habitats
Increasing human pressures have a negative impact on freshwater habitats and their biota worldwide. To protect habitats and the species contained within them, ecological assessments over a gradient of near natural to degraded freshwater habitats are ...
Marina Vilenica +3 more
doaj +1 more source
The response of neotropical dragonflies (Insecta: Odonata) to local and regional abiotic factors in small streams of the Amazon [PDF]
Since the relative role of local and regional abiotic factors on the Odonata diversity in rainforest streams is still poorly understood, we evaluated the effects of these factors on adult Odonata (Insecta) from preserved and altered streams in the ...
Belle +20 more
core +1 more source
Oviposition and care decrease the total haemocyte concentration. Oviposition and care affect haemocyte type proportions. Serratia marcescens challenge does not affect the immune cell parameters. Abstract Reproduction and immunity are essential biological processes that compete for resources and energy.
Louis Pailler +7 more
wiley +1 more source
Phenology determines seasonal variation in ectoparasite loads in a natural insect population [PDF]
1. The extent to which individuals are parasitised is a function of exposure to parasites and the immune response, which in ectotherms may be associated with temperature. 2.
Andrés +68 more
core +1 more source

