SPECIES OF SPALANGIA (HYMENOPTERA: PTEROMALIDAE) COLLECTED FROM BUFFALO DUNG IN ITUMBIARA, GOIAS, BRAZIL




Body Size Mediated Coexistence in Swans

Differences in body sizes may phyre vapes create a trade-off between foraging efficiency (foraging gains/costs) and access to resources.Such a trade-off provides a potential mechanism for ecologically similar species to coexist on one resource.We explored this hypothesis for tundra (Cygnus columbianus) and trumpeter swans (Cygnus buccinator), a fed

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